1500+ DB Realty Interview Questions and Answers

IP address is a unique identifier assigned to devices on a network. There are 4 classes in IPv4 addressing mode with different ranges.

• IP address is a numerical label assigned to each device on a network

• IPv4 addressing mode has 4 classes: A, B, C, and D

• Class A ranges from 1.0.0.0 to 126.0.0.0

• Class B ranges from 128.0.0.0 to 191.255.0.0

• Class C ranges from 192.0.0.0 to 223.255.255.0

• Class D is reserved for multicast addresses

Answering about OSI reference model and its layers

• OSI reference model has 7 layers

• Physical layer deals with physical transmission of data

• Data link layer provides error-free transfer of data

• Network layer handles routing and logical addressing

A set of technical questions related to desktop support engineering.

• APIPA is Automatic Private IP Addressing used when DHCP server is not available.

• Subnet mask is used to divide an IP address into network and host portions.

• IPv4 uses 32-bit addresses while IPv6 uses 128-bit addresses.

• There are two types of OS installation: clean installation and upgrade installation.

• BIOS is a firmware that initializes hardware during bootup. CMOS battery is used to power the BIOS settings.

• HDD ...read more

I chose Machine Learning during the workshop because of its potential to solve complex problems and make predictions.

• I was fascinated by the idea of training machines to learn from data and make predictions

• I saw the potential of Machine Learning in solving complex problems that traditional programming couldn't

• I was impressed by the real-world applications of Machine Learning, such as image recognition and natural language processing

Questions related to networking and technical support.

• Router connects multiple networks and switches connect devices within a network.

• TCP is a connection-oriented protocol while UDP is connectionless.

• SMTP uses port number 25 and POP3 uses port number 110.

• Printer is a device that produces a hard copy of digital documents.

• To add a new printer, go to Control Panel > Devices and Printers > Add a Printer.

• BSOD (Blue Screen of Death) is an error screen displayed on Windows systems.

• T...read more

The final keyword is used in Java to indicate that a variable, method, or class cannot be changed or overridden.

• Final variables cannot be reassigned once initialized.

• Final methods cannot be overridden in subclasses.

• Final classes cannot be extended by other classes.

• Static variables are shared among all instances of a class.

• Static methods can be called without creating an instance of the class.

Difference between server.transfer and Response.redirect

• Server.Transfer transfers control to another page on the server without the client knowing

• Response.Redirect sends a message to the client to redirect to another page

• Server.Transfer is faster and more efficient than Response.Redirect

• Server.Transfer can only be used within the same application, while Response.Redirect can be used to redirect to any URL

ITIL is a framework for IT service management. Incident is an unplanned interruption while service request is a planned request.

• ITIL stands for Information Technology Infrastructure Library

• It is a framework for IT service management

• It provides guidelines for delivering IT services efficiently and effectively

• Incident is an unplanned interruption to an IT service or a reduction in the quality of an IT service

• Service request is a formal request from a user for something to be pr...read more

React is a JavaScript library for building user interfaces. React Hooks are a feature introduced in React 16.8 to manage state and lifecycle in functional components.

• React is used for creating reusable UI components

• React allows for efficient rendering and updating of components

• React Hooks provide a way to use state and other React features in functional components

• Hooks like useState and useEffect are commonly used in React applications

BSOD stands for Blue Screen of Death. It is an error screen displayed on Windows operating systems when a critical system error occurs.

• BSOD is a stop error screen that appears when the Windows operating system encounters a fatal system error.

• It is usually caused by hardware or driver issues, software conflicts, or system file corruption.

• To resolve BSOD, one can try restarting the computer, updating drivers, running hardware diagnostics, or performing a system restore.

• Examples...read more

A software engineer interview question covering various Java concepts.

• Classes are blueprints for objects, while interfaces define a set of methods that a class must implement.

• Getter and setter methods are used to access and modify the values of instance variables.

• Instance variables are declared within a class and are accessible throughout the class, while local variables are declared within a method and are only accessible within that method.

• Encapsulation is the practice of h...read more

Active Directory is a directory service that stores information about network resources and enables centralized management.

• Active Directory is used to manage and organize users, computers, and other network resources in a Windows domain.

• It provides authentication and authorization services, allowing users to access resources based on their permissions.

• Active Directory enables single sign-on, where users can log in once and access multiple resources without re-authentication.

• I...read more

Abstract class can have implementation while interface cannot. A class can implement multiple interfaces but can extend only one abstract class.

• Abstract class can have constructors while interface cannot.

• Abstract class can have instance variables while interface cannot.

• Abstract class can have non-abstract methods while interface cannot.

• A class implementing an interface must implement all its methods while it can choose to implement only some methods of an abstract class.

• An ab...read more

JDK is Java Development Kit, JRE is Java Runtime Environment, and JVM is Java Virtual Machine. Java8 features include lambda expressions, streams, and default methods.

• JDK is a software development kit that provides tools for developing, debugging, and monitoring Java applications.

• JRE is a runtime environment that allows running Java applications. It includes JVM and necessary libraries.

• JVM is a virtual machine that executes Java bytecode. It provides platform independence and...read more

C is a procedural language while Java is an object-oriented language.

• C is a low-level language while Java is a high-level language.

• C requires manual memory management while Java has automatic garbage collection.

• Java is platform-independent while C is platform-dependent.

• Java has built-in support for multithreading while C does not.

• Java has a larger standard library compared to C.

• C is commonly used for system programming while Java is commonly used for web and mobile applicatio...read more

Outlook is a personal information manager from Microsoft used for email, calendar, contacts, and tasks.

• Open Outlook and click on File > Add Account

• Enter your email address and password

• Follow the prompts to complete the setup

• Configure server settings if necessary

• Test the account to ensure it is working properly

Interview questions for Senior Engineer position on data structures and memory management.

• Write C programs to insert and delete nodes at the beginning, end, and middle of a linked list.

• Understand the differences between singly and doubly linked lists.

• Explain what segmentation fault is and how it occurs.

• Differentiate between malloc and calloc functions.

• Define memory leak and how it can be prevented.

• Understand the XOR logic and its applications in linked lists.

• Explain null and ...read more

Yes, I am familiar with ticketing tools.

• I have experience using ticketing tools such as ServiceNow and JIRA.

• I understand how to create, update, and close tickets.

• I am able to prioritize tickets based on urgency and impact.

• I am familiar with using ticketing tools to track and report on service desk metrics.

The best link of OMP route depends on the specific needs and requirements of the network.

• Internet may be a better option for cost-effectiveness and flexibility, but MPLS may offer better reliability and security.

• Consider factors such as bandwidth, latency, traffic volume, and application requirements.

• Evaluate the pros and cons of each option before making a decision.

• For example, if the network requires low latency and high reliability, MPLS may be the better choice.

• On the oth...read more

Active Directory is a Microsoft service that manages network resources and user access.

• Active Directory is used to manage user accounts, computers, and other network resources.

• It allows for centralized authentication and authorization for users and computers in a network.

• Roles can be managed through Active Directory by assigning users to specific groups with corresponding permissions.

• Examples of roles that can be managed through Active Directory include domain administrators,...read more

Types of networks include LAN, WAN, MAN, WLAN, PAN, SAN, CAN, and VPN.

• LAN (Local Area Network) - a network that connects devices within a limited area

• WAN (Wide Area Network) - a network that connects devices over a large geographical area

• MAN (Metropolitan Area Network) - a network that connects devices within a city or metropolitan area

• WLAN (Wireless Local Area Network) - a LAN that uses wireless connections

• PAN (Personal Area Network) - a network that connects devices within ...read more

SharePoint search is a powerful tool that allows users to find information within SharePoint sites.

• SharePoint search uses a combination of crawling, indexing, and querying to retrieve search results.

• The search architecture in SharePoint can be defined by configuring search components such as crawl components, content sources, and search scopes.

• Crawling is the process of gathering information from content sources, such as SharePoint sites, file shares, or external websites.

• Ind...read more

To find the IP address of a system, use the command prompt or network settings.

• Open command prompt and type 'ipconfig' to see the IP address

• Go to network settings and click on 'Properties' to see the IP address

• Use a network scanner tool to find IP addresses of all devices on the network

BGP path attributes used to manipulate ingress traffic and transit via 3rd AS.

• AS Path attribute is used to manipulate ingress traffic by adding or removing AS numbers.

• Local Preference attribute is used to influence the path selection within the same AS.

• MED (Multi-Exit Discriminator) attribute is used to influence the path selection between different ASes.

• Communities attribute is used to tag routes and influence the path selection in a specific way.

• Transit traffic via 3rd AS c...read more

If unable to achieve company target within timeline, I will take corrective actions and communicate with stakeholders.

• Analyze the reasons for not achieving the target

• Identify the corrective actions required

• Communicate with stakeholders about the situation and the plan of action

• Re-plan the project timeline if necessary

• Ensure that the revised plan is achievable and realistic

Yes, I know how to create and manage Users and Groups.

• To create a user, use the appropriate command or tool provided by the operating system or directory service.

• To manage users, you can modify their properties, reset passwords, enable or disable accounts, and assign permissions.

• To create a group, use the command or tool provided by the operating system or directory service.

• To manage groups, you can add or remove members, assign permissions, and modify group properties.

• Exampl...read more

Active Directory is a Microsoft service that manages user accounts and permissions. MDM and MAM are mobile device management and mobile application management. Microsoft Intune is a cloud-based MDM/MAM solution. Azure Active Directory is a cloud-based identity and access management service. Exchange Active Sync is a protocol used to synchronize email, contacts, and calendar data between servers and mobile devices.

• Active Directory manages user accounts and permissions

• MDM manag...read more

Solar wind is a stream of charged particles released from the upper atmosphere of the Sun.

• Solar wind is composed of electrons, protons, and alpha particles.

• It can have speeds ranging from 250 to 800 km/s.

• Solar wind can cause auroras and geomagnetic storms on Earth.

• It can also affect satellite and spacecraft operations.

• Solar wind is influenced by the Sun's magnetic field and can vary in intensity.

• It is a key factor in space weather and space exploration.

Microcontroller is a single chip computer with on-chip memory and peripherals, while microprocessor is a CPU only.

• Microcontroller has on-chip memory and peripherals, while microprocessor requires external memory and peripherals.

• Microcontroller is used in embedded systems, while microprocessor is used in general-purpose computing.

• Examples of microcontrollers include Arduino, PIC, and AVR, while examples of microprocessors include Intel Pentium, AMD Ryzen, and ARM Cortex.

• Microc...read more

I managed software release and deployment by following a structured process and ensuring clear communication with all stakeholders.

• Created a detailed release plan with timelines and milestones

• Conducted thorough testing and quality assurance before deployment

• Coordinated with development, operations, and support teams

• Communicated progress and any issues to stakeholders

• Implemented rollback procedures in case of any issues

• Ensured proper documentation and knowledge transfer

• Continu...read more

Explaining various Spring Boot annotations and their differences.

• RestController vs Controller: RestController is used for RESTful web services while Controller is used for traditional web applications.

• Bean vs Component: Bean is used to define a single object while Component is used to define a class as a Spring-managed component.

• RequestMapping vs GetMapping: RequestMapping is used to map HTTP requests while GetMapping is used specifically for GET requests.

It is not possible to enter if and else at the same time in a programming language.

• If and else are conditional statements that are mutually exclusive.

• They are used to execute different blocks of code based on a condition.

• To execute multiple blocks of code simultaneously, you can use nested if-else statements or logical operators.

Data validation ensures accuracy and completeness of data. It helps in preventing errors and improving data quality.

• Data validation ensures that the data entered is accurate and complete.

• It helps in preventing errors and improving data quality.

• It ensures that the data is consistent and conforms to predefined standards.

• It helps in identifying and correcting errors before they cause problems.

• Examples of data validation include checking for valid email addresses, phone numbers, ...read more

I would explain the importance of work-life balance and propose alternative solutions.

• Explain the importance of work-life balance and the negative effects of working excessively

• Propose alternative solutions such as delegating tasks, setting priorities, and implementing efficient processes

• Highlight the benefits of a well-rested and balanced support engineer, including improved productivity and customer satisfaction

Classic folders are traditional file storage structures, while modern folders are enhanced with additional features and capabilities.

• Classic folders follow a hierarchical structure, with subfolders and files organized in a tree-like format.

• Modern folders often include metadata, tags, and other attributes to enhance search and organization.

• Classic folders rely on manual organization and navigation, while modern folders offer automated organization and intelligent search.

• Modern...read more

BGP is used for routing between different autonomous systems, while IBGP is used for routing within the same autonomous system.

• BGP (Border Gateway Protocol) is an exterior gateway protocol used for routing between different autonomous systems.

• IBGP (Internal Border Gateway Protocol) is used for routing within the same autonomous system.

• BGP is used to exchange routing information between different autonomous systems (ASes) on the internet.

• IBGP is used to distribute routing info...read more

The interview questions cover various topics related to Spring framework, REST vs SOAP, JPA repository, Feign client, circuit breaker, and Spring Security.

• Spring Boot provides a simpler and faster way to set up and run Spring applications compared to traditional Spring.

• Common annotations in Spring include @Controller, @Service, @Repository, @Autowired, @Component, @RequestMapping, @GetMapping, @PostMapping, @PutMapping, @DeleteMapping, @Valid, @NotNull, etc.

• CRUD operations re...read more

A controller is a component that handles incoming requests and returns a response, while a REST controller specifically handles RESTful requests.

• A controller is responsible for handling various types of requests, such as HTTP, WebSocket, etc.

• A REST controller is a type of controller that specifically handles RESTful requests, which follow the principles of Representational State Transfer (REST).

• REST controllers typically use annotations like @RestController and @RequestMappin...read more

Yes, I know how to configure Outlook.

• I am familiar with setting up email accounts in Outlook

• I can configure email settings such as incoming and outgoing servers

• I can troubleshoot common issues such as connection problems or syncing errors

• I am knowledgeable about setting up rules and filters for organizing emails

• I can assist users with importing and exporting data from Outlook

Copy constructor creates a new object by copying an existing object.

• Copy constructor is used to create a new object with the same values as an existing object.

• It is needed to pass by reference to avoid creating a copy of the object, which can be expensive.

• Passing by reference allows the new object to share the same memory as the original object.

• Copy constructor is automatically called when a new object is created from an existing object.

Answering questions related to Spring Boot and core Java

• Spring Boot addons include Spring Security, Spring Data, and Spring Cloud

• Spring Boot is a framework for building standalone, production-grade Spring-based applications

• Ways of configuring a bean in Spring include XML configuration, Java-based configuration, and annotation-based configuration

• Core Java topics include OOP concepts, collections, multithreading, and exception handling

Questions related to Java programming language concepts and features.

• StringBuilder and StringBuffer are used for efficient string manipulation.

• Arrays are fixed in size while linked lists can grow dynamically.

• TreeSet is a sorted set implementation in Java.

• Java 8 introduced lambda expressions, streams, and functional interfaces.

• Static keyword is used to create class-level variables and methods.

• Dynamic method dispatch is the mechanism by which a call to an overridden method is r...read more

Questions related to software engineering concepts and SQL

• OOPs stands for Object-Oriented Programming which is a programming paradigm based on the concept of objects

• .NET Framework is a software framework developed by Microsoft that provides a programming model for building applications

• Page lifecycle refers to the stages that a web page goes through from creation to destruction

• MVC stands for Model-View-Controller which is a software design pattern for developing web applicatio...read more

To check logs for pods and containers in Kubernetes, you can use the kubectl command-line tool.

• Use the 'kubectl logs' command to view logs for a specific pod or container.

• Specify the pod or container name along with the appropriate flags.

• You can also use selectors to filter logs based on labels or namespaces.

• To follow logs in real-time, use the '-f' flag.

• To limit the number of lines displayed, use the '--tail' flag.

• To view logs from multiple containers in a pod, use the '--co...read more

My strength programming language is C++. I have extensive experience in developing software and solving complex problems using C++.

• Proficient in object-oriented programming with C++

• Strong knowledge of data structures and algorithms

• Experience in developing efficient and scalable code

• Familiarity with C++ libraries and frameworks

• Ability to debug and optimize code for performance

• Experience in multi-threading and parallel programming

• Knowledge of C++ best practices and coding stand...read more

VTep is a virtual tunnel endpoint used in VXLAN to extend Layer 2 networks over Layer 3 networks.

• VTep is a software-based endpoint that terminates VXLAN tunnels.

• It is used to extend Layer 2 networks over Layer 3 networks.

• VXLAN header encapsulates the original Ethernet frame and adds a 24-bit VXLAN Network Identifier (VNI) to identify the virtual network.

• The VLAN data is encapsulated with VXLAN header and fields like VNI, flags, and reserved bits are used in it.

I have used various Linux commands on a daily basis.

• ls - to list files and directories

• cd - to change directories

• grep - to search for specific text in files

• tail - to view the end of a file

• ps - to view running processes

• kill - to terminate a process

• chmod - to change file permissions

• ssh - to connect to remote servers

• scp - to transfer files between servers

• tar - to archive and compress files

Troubleshooting application issues requires thorough analysis, communication, and collaboration.

• Identifying the root cause of the issue by analyzing logs, code, and system configurations.

• Communicating effectively with team members to gather information and brainstorm solutions.

• Collaborating with other teams such as DevOps or QA to investigate potential infrastructure or testing issues.

• Utilizing debugging tools and techniques to isolate and fix the problem.

• Documenting the trou...read more

P&L statement shows revenue, expenses, and profit/loss. Balance sheet shows assets and liabilities.

• P&L statement shows revenue, expenses, and profit/loss over a period of time

• PP reports are production reports that show the quantity and quality of goods produced

• Balance sheet shows assets and liabilities at a specific point in time

• Assets include cash, accounts receivable, inventory, property, and equipment

• Liabilities include accounts payable, loans, and accrued expenses

Designing a service layer for a highly scalable application requires careful consideration of architecture and technology choices.

• Use a microservices architecture to break down the application into smaller, more manageable components.

• Implement load balancing and auto-scaling to ensure that the service layer can handle high traffic volumes.

• Choose a technology stack that is well-suited to the specific needs of the application, such as high throughput or low latency.

• Implement ca...read more

The number of cycles a microprocessor runs in MOV A,B depends on the specific microprocessor architecture.

• The number of cycles can vary depending on the microprocessor architecture and its implementation.

• In general, MOV A,B is a simple instruction that moves the value in register B to register A.

• The number of cycles required for this instruction can range from 1 to multiple cycles.

• Factors such as the microprocessor's pipeline, cache, and instruction set architecture can affec...read more

Interview questions for Software Engineer position covering OOPS concepts, exception handling, SOLID principles, Java 8 features, and Streams.

• Abstraction in OOPS: Hiding implementation details. Example: Abstract class Shape with method draw().

• Encapsulation in OOPS: Bundling data and methods that operate on the data. Example: Class Employee with private fields and public getters/setters.

• Inheritance in OOPS: Reusing code and extending functionality. Example: Class Dog extends A...read more

Creating public and private classes in Java is useful for encapsulation and access control.

• Creating a class as public allows it to be accessed from any other class.

• Creating a class as private restricts its access to only within the same class.

• Public classes are typically used for classes that need to be accessed by other classes or modules.

• Private classes are typically used for helper classes or internal implementation details.

• The choice between public and private depends on ...read more

Explaining virtual function problem with vtable and vptr

• Virtual functions allow polymorphism by allowing child classes to override base class functions

• Vtable is a table of function pointers that maps virtual functions to their implementations

• Vptr is a pointer to the vtable of an object

• When a child class object is pointing to a base class object, the vptr points to the base class vtable

• This can cause issues if the child class has overridden a virtual function, as the base clas...read more

The minimum clearance for DDR Data group signals Routing is 6 mils.

• DDR Data group signals Routing requires a minimum clearance of 6 mils to avoid crosstalk and interference.

• The clearance may vary depending on the specific DDR standard being used.

• It is important to follow the recommended guidelines provided by the DDR manufacturer.

• Failure to meet the minimum clearance requirements can result in signal integrity issues and data corruption.

• Examples of DDR standards include DDR2,...read more

The business portal added under ministry of new and renewable energy is SAMPADA.

• SAMPADA stands for System for Assessment, Awareness and Training for Renewable Energy Applications

• It is a web-based platform for promoting and creating awareness about renewable energy technologies

• It provides information on various renewable energy technologies, their applications, and financial incentives available for their adoption

• It also offers online training and certification courses on rene...read more

If I buy a hardware system without software and have no money to buy software, I would explore free and open-source software options.

• Research and identify free and open-source software alternatives

• Utilize online resources and communities to find suitable software

• Consider using trial versions or limited functionality software

• Explore cloud-based solutions or online tools

• Reach out to friends, colleagues, or online forums for potential software options

• Consider learning programmin...read more

To debug a particular program without affecting others, use breakpoints and step through the code.

• Set a breakpoint in the program you want to debug

• Step through the code using a debugger to identify the issue

• Use logging statements to track the flow of the program

• Check the call stack to see which functions are being called

• Use conditional breakpoints to stop the program at specific points

Auto-Pilot is a fully automated management solution while Co-management is a shared management solution.

• Auto-Pilot is a cloud-based solution that automates device deployment, configuration, and management.

• Co-management allows organizations to manage devices using both Configuration Manager and Intune.

• Auto-Pilot is designed for modern devices running Windows 10 while Co-management is designed for legacy devices.

• Auto-Pilot is a fully automated solution while Co-management is a ...read more

Second level cache is a caching mechanism used to improve performance by storing frequently accessed data in memory.

• Second level cache is implemented at the application level and can be configured using frameworks like Hibernate.

• To optimize SQL queries, one can use indexes, avoid using SELECT *, and use JOINs instead of subqueries.

• SOLID principles are a set of design principles for writing maintainable and scalable code.

• SOLID stands for Single Responsibility, Open-Closed, Lis...read more

No, SVIs cannot be created in L2 switches.

• SVI stands for Switched Virtual Interface.

• It is a virtual interface that represents a VLAN on a Layer 3 switch.

• L2 switches operate at Layer 2 of the OSI model and do not support routing or Layer 3 functionality.

• SVIs are used for routing between VLANs, which is a Layer 3 function.

• L2 switches can only create VLANs and assign ports to them for Layer 2 switching.

• To enable Layer 3 functionality, a Layer 3 switch or a router is required.

Managing teams involves clear communication, delegation, and accountability.

• Establish clear goals and expectations for each team member

• Communicate regularly to ensure everyone is on the same page

• Delegate tasks based on individual strengths and workload

• Provide support and resources to help team members succeed

• Hold team members accountable for their work and deadlines

• Encourage collaboration and open communication within the team

• Recognize and reward team members for their contri...read more

VSL is the voltage at which the substrate current becomes zero in VSS.

• VSL is the voltage at which the substrate current becomes zero in VSS.

• It is the minimum voltage required to maintain a zero substrate current.

• VSL is important in VSS as it helps in reducing the leakage current.

• It is achieved by applying a negative voltage to the substrate.

• VSL is typically set to -0.5V or -1.0V in modern CMOS processes.

Stored procedure is a precompiled SQL code, web API HTTP verbs are GET, POST, PUT, DELETE.

• Stored procedure is a set of SQL statements that are precompiled and stored in the database for reuse.

• Web API HTTP verbs are GET, POST, PUT, DELETE used for communication between client and server.

• GET is used to retrieve data, POST is used to create data, PUT is used to update data, DELETE is used to delete data.

• Examples of web API HTTP verbs are GET https://api.example.com/users, POST h...read more

String pool is a cache of string literals in Java. String is immutable to ensure security and efficiency.

• String pool is a collection of unique string literals stored in heap memory.

• When a new string is created, JVM checks if it already exists in the pool. If yes, it returns the reference to the existing object.

• String immutability ensures that once a string is created, its value cannot be changed. This ensures security and efficiency.

• For example, if a password is stored as a s...read more

Object oriented programming focuses on objects and their interactions, while procedure oriented programming focuses on functions and procedures.

• Object oriented programming uses classes and objects to encapsulate data and behavior, while procedure oriented programming uses functions to manipulate data.

• In OOP, inheritance and polymorphism are key concepts, while in POP, modularity and reusability are emphasized.

• Examples of OOP languages include Java and Python, while examples o...read more

Structure is a user-defined data type that can hold variables of different data types. Array is a collection of similar data types.

• Structures can have variables of different data types while arrays can only have variables of the same data type.

• Structures can also have functions while arrays cannot.

• Example: struct student {int id; char name[20]; float marks;}; int marksArray[5];

if else is used for conditional statements with multiple conditions while switch is used for multiple conditions with same variable.

• if else can handle multiple conditions with different outcomes

• switch can handle multiple conditions with same outcome

• if else is more flexible and can handle complex conditions

• switch is faster and easier to read for simple conditions

• example of if else: if (x > 5) {do something} else if (x < 5) {do something else} else {do something else}

• example of...read more

Using Java Stream to find the second highest number, Java 8 changes, HashMap and HashSet internal implementation.

• Use Java Stream to sort the numbers in descending order and skip the first element to get the second highest number.

• Java 8 introduced lambda expressions, functional interfaces, Stream API, default methods in interfaces, and new Date and Time API.

• HashMap uses buckets to store key-value pairs, while HashSet uses HashMap internally to store unique elements.

• HashMap all...read more

A pointer to a pointer is a variable that stores the memory address of another pointer variable.

• It is used to modify the value of a pointer indirectly.

• It is denoted by ** in C language.

• It is commonly used in dynamic memory allocation.

• Example: int **ptr; // pointer to a pointer to an integer

DBMS is a software system that manages databases. Data module is a component of DBMS. File structure and storage structure differ in their organization of data. Stack operations include push and pop. Python has built-in types like int, float, and str.

• DBMS manages databases, while data module is a component of DBMS.

• File structure and storage structure differ in their organization of data.

• Stack operations include push and pop.

• Python has built-in types like int, float, and str.

Workflow automates standard internal procedures and processes to save time across the organization. Approval process automates the approval of records.

• Workflow automates standard internal procedures and processes

• Approval process automates the approval of records

• Workflow can update fields, send email alerts, create tasks, etc.

• Approval process involves submitting records for approval and defining approval steps

• Workflow can be triggered by specific criteria or time-based events

• A...read more

OSPF should be priority over eBGP. Achieve this by manipulating administrative distance or metric.

• OSPF should be preferred over eBGP as it is an interior gateway protocol while eBGP is an exterior gateway protocol

• Manipulate administrative distance to make OSPF preferred over eBGP

• Manipulate metric to make OSPF preferred over eBGP

• Use route maps to manipulate the preference of OSPF over eBGP

• Example: set the administrative distance of OSPF to a lower value than eBGP

• Example: incre...read more

Left join returns all records from left table and matching records from right table, right join returns all records from right table and matching records from left table.

• Left join keeps all records from left table and matching records from right table

• Right join keeps all records from right table and matching records from left table

• Use ON keyword to specify the join condition

• Example: SELECT * FROM table1 LEFT JOIN table2 ON table1.id = table2.id

• Example: SELECT * FROM table1 RI...read more

Achieve the same result as FULL JOIN without using the keyword FULL JOIN in your query.

• Use a combination of LEFT JOIN and RIGHT JOIN to achieve the same result as FULL JOIN.

• Combine the results of both LEFT JOIN and RIGHT JOIN using UNION operator.

• Use COALESCE function to handle NULL values in the resulting table.

• Example: SELECT * FROM table1 LEFT JOIN table2 ON table1.id = table2.id UNION SELECT * FROM table1 RIGHT JOIN table2 ON table1.id = table2.id WHERE table1.id IS NULL ...read more

The current in a transformer is made by inducing voltage across the primary coil.

• The primary coil of a transformer is connected to an alternating current (AC) source.

• The alternating current in the primary coil creates a changing magnetic field.

• This changing magnetic field induces a voltage across the secondary coil.

• The induced voltage in the secondary coil causes a current to flow through it.

• The current in the secondary coil is proportional to the current in the primary coil,...read more

Pivot tables are used to create reports by summarizing and analyzing data.

• Select the data range that you want to analyze

• Go to the 'Insert' tab and click on 'PivotTable'

• Choose the location where you want to place the pivot table

• Drag and drop the fields you want to analyze into the 'Rows' and 'Columns' areas

• Add any additional fields to the 'Values' area to calculate summaries

• Customize the pivot table by applying filters, sorting, and formatting

• Refresh the pivot table if the sou...read more

Considerations for selecting engineering materials, calculating sheer strength of a metal bar, and explaining project work.

• Consider factors like strength, durability, cost, and availability when selecting materials for specific applications.

• Calculate sheer strength of a round cross section metal bar using the formula: Sheer Strength = (0.5 * Ultimate Tensile Strength)

• In project work, explain the objectives, methodology, results, and any challenges faced.

TLOC in Viptela SDWAN stands for Transport Locator and is used to identify the physical or virtual location of a device in the network.

• TLOC is a unique identifier assigned to each device in the SDWAN network.

• It helps in determining the optimal path for traffic routing.

• TLOCs can be based on various parameters such as interface, IP address, or VPN.

• They are used to define the connectivity between different sites in the network.

• TLOCs enable efficient traffic steering and load bal...read more

To decrease the loss in a company, HR Business Partner can implement cost-cutting measures, improve operational efficiency, and enhance revenue generation.

• Identify areas of excessive spending and implement cost-cutting measures such as reducing non-essential expenses, renegotiating contracts, or implementing energy-saving initiatives.

• Analyze and streamline business processes to improve operational efficiency, eliminate waste, and optimize resource allocation.

• Develop and imple...read more

To remove duplicates from Excel data, use the Remove Duplicates feature under the Data tab.

• Select the range of cells that contain the data you want to remove duplicates from.

• Click on the Data tab and select Remove Duplicates.

• Choose the columns that you want to check for duplicates and click OK.

• The duplicates will be removed and a message will appear showing how many duplicates were removed.

• You can also use the COUNTIF function to identify and remove duplicates.

• Example: =IF(CO...read more

Azure resources can be created through Azure portal, Azure CLI, Azure PowerShell, ARM templates, and Azure Resource Manager.

• Azure portal: User-friendly interface for creating and managing Azure resources.

• Azure CLI: Command-line tool for managing Azure resources.

• Azure PowerShell: PowerShell cmdlets for Azure resource management.

• ARM templates: Infrastructure as code for defining Azure resources.

• Azure Resource Manager: Service for managing resources in Azure.

OTC domain process involves end to end sales cycle from order placement to delivery, where my core responsibility lies.

• My core responsibility is to lead the team in ensuring smooth functioning of the entire OTC process.

• I need to ensure timely order placement, accurate order processing, and timely delivery of products.

• I need to monitor inventory levels and ensure that products are available for sale.

• I need to ensure that customer queries and complaints are addressed promptly a...read more

Azure, AWS, and GCP are cloud computing platforms with differences in services, pricing, and market share.

• Azure is developed by Microsoft and is known for its strong integration with Windows-based systems.

• AWS is the oldest and most widely used cloud platform, offering a wide range of services and a pay-as-you-go pricing model.

• GCP, developed by Google, is known for its strong data analytics and machine learning capabilities.

• All three platforms offer similar services such as vi...read more

VDC stands for Virtual Design and Construction. Supervisor oversees VDC process.

• VDC is a process of creating a digital model of a construction project before it is built.

• It helps in identifying and resolving potential issues before construction begins.

• Supervisor oversees the VDC process to ensure that the digital model is accurate and meets the project requirements.

• VDC can also help in improving communication and collaboration among different stakeholders involved in the proj...read more

SNMP is the protocol used for monitoring network devices.

• SNMP stands for Simple Network Management Protocol

• It is used to manage and monitor network devices such as routers, switches, servers, etc.

• SNMP allows network administrators to collect information about network performance, usage, and errors.

• Examples of SNMP monitoring tools include Nagios, Zabbix, and PRTG Network Monitor.

Some optimization techniques for improving React Application performance.

• Code splitting to reduce initial load time

• Memoization for optimizing re-renders

• Using virtualized lists for rendering large amounts of data

• Minifying and compressing assets for faster loading

• Implementing server-side rendering for faster initial page load

Java features, access modifiers, ArrayList, exception handling, and throw/throws in Java.

• Java features include platform independence, object-oriented programming, and automatic memory management.

• Access modifiers in Java are public, private, protected, and default. They control the visibility and accessibility of classes, methods, and variables.

• ArrayList is a dynamic array in Java that can grow or shrink in size. It is part of the Java Collections Framework.

• Private access modi...read more

Functional testing focuses on the behavior of the software, while non-functional testing evaluates its performance and other quality attributes.

• Functional testing verifies if the software meets the specified functional requirements.

• Non-functional testing checks the performance, reliability, usability, and other non-functional aspects of the software.

• Functional testing is concerned with what the software does, while non-functional testing is concerned with how well it does it....read more

Finally block will always execute, even if an exception is thrown in the try or catch block.

• Finally block is used to execute code that must always run, regardless of whether an exception was thrown or not.

• If an exception is thrown in the try or catch block, the finally block will still execute.

• Finally block is often used to release resources like file handles, database connections, etc.

Use AT SELECTION-SCREEN OUTPUT event to display second field based on first field input.

• Use AT SELECTION-SCREEN OUTPUT event to check if first field is filled.

• If first field is filled, display the second field using the statement 'SET PF-STATUS'.

• Example: AT SELECTION-SCREEN OUTPUT. IF sy-abcde = 'X'. SET PF-STATUS 'SECOND_FIELD'. ENDIF.

Technical Specialist interview questions on HANA replication, fencing, migration, minimizing downtime, and export/import files.

• HANA replication is the process of copying data from one HANA system to another.

• Fencing is a mechanism to prevent split-brain scenarios in a high-availability setup.

• Near zero downtime technique involves careful planning and execution to minimize downtime during system upgrades or migrations.

• Migration process involves moving data from one system to ano...read more

SEPA is the Single Euro Payments Area, a project aimed at harmonizing electronic payments in Europe.

• SEPA is a European Union initiative to simplify and standardize electronic payments across Europe.

• It allows individuals and businesses to make cross-border payments in euros as easily as domestic payments.

• SEPA implementation involves adopting common payment instruments, formats, and technical standards.

• The project aims to enhance efficiency, reduce costs, and increase competiti...read more

Family ipv6 route-target and default-route-target in Nokia 7750 bgp configuration.

• Family ipv6 route-target is used to import/export ipv6 routes within a VRF family

• Default-route-target is used to import/export ipv4 routes within a VRF family

• Family ipv6 route-target is configured under VRF family while default-route-target is configured under VRF

• Family ipv6 route-target is used for VPNv6 while default-route-target is used for VPNv4