2500+ Wipro Interview Questions and Answers

Program execution involves several steps, including compilation, linking, loading, and execution. Memory is allocated to program variables during runtime.

• Compilation: Source code is translated into machine code or bytecode.

• Linking: Object files and libraries are combined to create an executable file.

• Loading: The executable file is loaded into memory.

• Execution: The program instructions are executed by the CPU.

• Memory Allocation: Memory is allocated to program variables during r...read more

Impact refers to the extent of the consequences caused by an incident, while urgency refers to the time sensitivity of resolving the incident.

• Impact is about the severity and extent of the damage caused by an incident.

• Urgency is about the time sensitivity and the need for immediate action to resolve the incident.

• Impact is measured in terms of the disruption caused to the business or services.

• Urgency is measured in terms of the time constraints and the impact on business opera...read more

The output will have 5 records.

• The input record matches with all 5 records in the lookup file.

• Each match will result in a separate record in the output.

• Therefore, the output will have 5 records.

Code to count number of characters and alphabets in a string.

• Use the len() function to count the total number of characters in the string.

• Use isalpha() function to check if a character is an alphabet or not.

• Loop through each character in the string and increment the count of alphabets if it is an alphabet.

• Return the total count of characters and alphabets in the string.

If infected with malware, isolate system, run antivirus scan, remove malware, backup data to external device.

• Isolate infected system from network to prevent further spread of malware

• Run antivirus scan to detect and remove malware

• If antivirus scan fails, use malware removal tools or seek professional help

• Backup important data to external device before attempting any fixes

• Ensure backup device is not infected with malware before restoring data

OOPS concepts in Python include inheritance, encapsulation, polymorphism, and abstraction.

• Inheritance allows a class to inherit properties and methods from a parent class.

• Encapsulation refers to the practice of hiding implementation details from the user.

• Polymorphism allows objects to take on multiple forms or behaviors.

• Abstraction involves creating a simplified representation of complex real-world objects.

• Python supports all four OOPS concepts and allows for easy implementat...read more

Upgrading to Oracle Database 19c and related challenges

• Ensure compatibility of existing applications with 19c

• Perform pre-upgrade tasks such as backup and patching

• Upgrade the database using DBUA or manual methods

• Address challenges such as deprecated features and changes in behavior

• Configure Data Guard for high availability and disaster recovery

• Rollback an OPatch using the -rollback option

• Use RMAN duplication to create a copy of the database for testing or reporting

A class is a blueprint for creating objects in object-oriented programming.

• A class defines the properties and behaviors of an object.

• It serves as a template for creating multiple instances of objects.

• Objects are instances of a class.

• Classes can have attributes (variables) and methods (functions).

Achieve parallel testing in Selenium using Java

• Use TestNG framework to execute tests in parallel

• Create multiple instances of WebDriver

• Use ThreadLocal to maintain thread safety

• Use Selenium Grid to distribute tests across multiple machines

• Configure TestNG XML file to specify parallel execution mode

I have extensive experience with database management systems.

• Proficient in SQL and NoSQL databases

• Designed and implemented database schemas

• Optimized database performance through indexing and query optimization

• Experience with MySQL, MongoDB, and PostgreSQL

• Familiarity with data warehousing and ETL processes

Insurance is a contract between an individual and an insurance company, providing financial protection against potential losses.

• Insurance is a form of risk management.

• It involves the transfer of risk from an individual to an insurance company.

• Insurance policies provide financial compensation in case of specified events or losses.

• Types of insurance include life, health, property, auto, and liability insurance.

• Premiums are paid by the insured to the insurance company in exchang...read more

Credit cards allow borrowing money while debit cards use funds from a linked account.

• Credit cards charge interest on unpaid balances while debit cards do not.

• Credit cards offer rewards and cashback while debit cards do not.

• Credit cards have a credit limit while debit cards do not.

• Credit cards can be used to build credit history while debit cards cannot.

• Examples of credit cards include Visa, Mastercard, and American Express while examples of debit cards include Visa Debit, Mas...read more

No, the two login buttons should not have the same ID.

• IDs should be unique for each element on a page

• Having two elements with the same ID can cause issues with locating and interacting with the elements

Program to generate Fibonacci series up to nth term.

• Declare variables for first and second terms of the series

• Use a loop to generate the series up to nth term

• Print the series as output

OOPs concepts are used in various real-life scenarios such as software development, game development, and automation.

• In software development, OOPs concepts are used to create reusable code and improve code organization.

• In game development, OOPs concepts are used to create game objects with properties and behaviors.

• In automation, OOPs concepts are used to create modular and scalable code for testing and scripting.

AI in security involves using machine learning algorithms to detect and prevent cyber threats.

• AI can analyze large amounts of data to identify patterns and anomalies that may indicate a security breach.

• Examples include using AI to detect malware, phishing attacks, and network intrusions.

• AI can also be used to automate threat response and enhance incident response capabilities.

• Python libraries like TensorFlow, Keras, and Scikit-learn can be used for building AI-based security ...read more

Explaining the difference between singly and doubly linked lists and discussing OOP concepts, prime number and Armstrong number logic.

• Singly linked list has one pointer to the next node while doubly linked list has two pointers to the next and previous nodes.

• OOP concepts include encapsulation, inheritance, and polymorphism.

• Prime number logic involves checking if a number is only divisible by 1 and itself.

• Armstrong number logic involves checking if a number is equal to the sum...read more

I have extensive experience working with Javascript, HTML, CSS, and NodeJs in various projects.

• Developed interactive web applications using Javascript, HTML, and CSS

• Utilized NodeJs for server-side development and building APIs

• Implemented responsive design techniques with CSS frameworks like Bootstrap

• Integrated front-end and back-end technologies to create seamless user experiences

To populate manager using server-side code, you can query the user table and retrieve the manager's details based on the user's ID.

• Use GlideRecord to query the user table

• Retrieve the manager's details using the user's ID

• Set the manager field with the retrieved manager's details

I implemented multiple authentication measures in my projects to ensure secure access.

• Implemented password-based authentication with strong password policies

• Utilized two-factor authentication for an added layer of security

• Implemented biometric authentication using fingerprint or facial recognition

• Used multi-factor authentication to combine multiple authentication methods

• Implemented single sign-on (SSO) for seamless and secure access across multiple systems

• Implemented role-bas...read more

Hardware refers to the physical components of a computer system, such as the motherboard, CPU, RAM, and hard drive.

• Hardware is the physical components that make up a computer system

• Examples of hardware include the motherboard, CPU, RAM, hard drive, and network interface card

• Hardware is essential for a computer system to function properly

• Hardware can be upgraded or replaced to improve performance or fix issues

The lifecycle of Major Incident Manager (MIM) involves several stages from identification to resolution.

• Identification of major incidents

• Logging and categorizing incidents

• Assigning resources and forming an incident management team

• Investigation and analysis of incidents

• Implementing temporary workarounds or fixes

• Communicating with stakeholders and providing updates

• Resolving the incident and restoring normal service

• Conducting post-incident reviews and documenting lessons learned

Yes, I am open to working on different domains as it will broaden my knowledge and skills.

• I am always eager to learn new things and take on new challenges.

• Working on a different domain will give me the opportunity to expand my knowledge and skills.

• I am confident that I can adapt quickly and efficiently to a new domain.

• Examples: If I have experience in software engineering and I am asked to work on a networking project, I will be willing to learn and work on it.

• Examples: If I ...read more

DB activities that can be part of a transaction group

• Insertion of data into a table

• Updating data in a table

• Deletion of data from a table

• Creating or dropping a table

• Altering the structure of a table

• Executing stored procedures

• Executing functions

• Executing triggers

Order to Cash Flow involves booking orders, invoicing customers, and handling rejections.

• Booking the order involves capturing customer details, product/service details, quantity, pricing, and delivery terms.

• Invoicing the order includes generating an invoice with all relevant details, such as customer name, order details, pricing, and payment terms.

• If a customer rejects the invoice, the next step is to investigate the reason for rejection, address any issues, and reissue the i...read more

Testing is the process of evaluating a system or component to find defects and ensure its quality.

• Testing is done to identify defects or bugs in a system or component.

• It helps in ensuring the quality and reliability of the software.

• Testing involves executing test cases and comparing the actual results with expected results.

• Different types of testing include functional testing, performance testing, security testing, etc.

• Bugs commonly found in websites include broken links, inc...read more

Return index of elements whose sum is equal to given sum in an array.

• Iterate through the array and check if the sum of any two elements is equal to the given sum.

• If yes, return the indices of those two elements.

• If no such pair exists, return an empty array.

I have technical certifications and experience with multiple OS and development tools.

• I have a certification in CompTIA A+ and am working towards my Network+ certification.

• I am proficient in Java, Python, and C++.

• I am comfortable working with Windows, MacOS, and Linux operating systems.

• My technical expertise includes troubleshooting hardware and software issues, network connectivity, and system administration.

• I have used development tools such as Eclipse, Visual Studio, and G...read more

Autonomous colleges are independent and have more academic freedom.

• Autonomous colleges have the freedom to design their own courses and syllabus.

• They can also conduct their own exams and evaluate students.

• This allows for more flexibility and innovation in teaching methods.

• Autonomous colleges are also able to respond more quickly to changes in the industry and job market.

• Examples of autonomous colleges include Indian Institute of Technology (IIT) and Indian Institute of Manage...read more

A class is a blueprint for creating objects, while an object is an instance of a class.

• A class defines the properties and methods that objects of that class will have.

• An object is created from a class and has its own unique set of values for the properties defined in the class.

• Multiple objects can be created from the same class.

• Classes can inherit properties and methods from other classes.

• Example: A class 'Car' can have properties like 'make', 'model', and 'year', while an ob...read more

Stack, data and program memory are used in software engineering for storing and managing data and instructions.

• Stack memory is used for storing local variables and function calls.

• Data memory is used for storing global and static variables.

• Program memory is used for storing the executable code of the program.

• Examples of stack memory usage include recursion and function calls.

• Examples of data memory usage include global variables and constants.

• Examples of program memory usage i...read more

C++ is an extension of C with object-oriented programming features.

• C++ supports classes and objects while C does not.

• C++ has better support for polymorphism and inheritance.

• C++ has a standard template library (STL) which provides useful data structures and algorithms.

• C++ is more complex than C and requires more knowledge to use effectively.

Durability in acid properties refers to the ability of a material to withstand the corrosive effects of acid.

• Durability is important in industries that use acids, such as chemical manufacturing and mining.

• Materials with high durability in acid properties include stainless steel and certain types of plastics.

• Durability can be measured through tests such as the ASTM G31 standard.

• Factors that affect durability include concentration and temperature of the acid, as well as the mat...read more

I will escalate the incident to the project manager first.

• Escalate the incident to the project manager for immediate action.

• Project manager can assess the severity of the incident and coordinate with the client.

• If necessary, involve higher management or relevant stakeholders based on the project's escalation process.

NAT gateway is a managed service that allows instances in a private subnet to connect to the internet.

• NAT gateway acts as a gateway for instances in a private subnet to access the internet.

• It provides a public IP address to instances in the private subnet.

• It helps in controlling the inbound and outbound traffic for instances in the private subnet.

• It is used in scenarios where instances in a private subnet need to access the internet but do not have a public IP address.

• It is a...read more

Digital Transformation strategy for a client involves identifying areas of improvement and implementing technology solutions to enhance business operations.

• Understand the client's business goals and objectives

• Identify areas of improvement and pain points

• Evaluate existing technology infrastructure

• Develop a roadmap for implementing new technology solutions

• Ensure alignment with business strategy and goals

• Provide training and support for employees

• Continuously monitor and evaluate...read more

Wipro is an Indian multinational corporation that provides information technology, consulting and business process services.

• Founded in 1945 by M.H. Hasham Premji

• Headquartered in Bangalore, India

• Employs over 190,000 people worldwide

• Provides services in various industries including healthcare, finance, and retail

• Has partnerships with major technology companies such as Microsoft and SAP

Static memory allocation is done at compile-time, while dynamic memory allocation is done at runtime.

• Static memory allocation is used for variables that are fixed in size and do not change during program execution.

• Dynamic memory allocation is used for variables that can change in size during program execution.

• Static memory allocation is faster than dynamic memory allocation.

• Dynamic memory allocation is useful when the size of the data is not known at compile-time.

• Examples of ...read more

Noises in data set are irrelevant or erroneous data. Data classification is done based on features and labels.

• Noises are irrelevant or erroneous data that can affect the accuracy of the model

• Data classification is done based on features and labels

• Features are the input variables and labels are the output variables

• Data can be classified as categorical or numerical

• Categorical data can be further classified as nominal or ordinal

• Numerical data can be further classified as discret...read more

Google Maps is a web mapping service developed by Google. It offers satellite imagery, street maps, 360° panoramic views of streets, real-time traffic conditions, and route planning.

• Provides detailed maps and satellite imagery of locations worldwide

• Offers real-time traffic updates and route planning

• Includes 360° panoramic views of streets

• Can be used for navigation and exploring new places

• Has features like Street View, indoor maps, and local business information

OOPs stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.

• Pillars of OOPs: Inheritance, Encapsulation, Polymorphism, Abstraction

• Inheritance: Allows a class to inherit properties and behavior from another class

• Encapsulation: Bundling of data with the methods that operate on that data

• Polymorphism: Ability to present the same interface for different da...read more

OOPS concepts are fundamental principles of object-oriented programming. Polymorphism allows objects to be treated as instances of their parent class.

• OOPS concepts include inheritance, encapsulation, polymorphism, and abstraction.

• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• Example: In a real life scenario, a parent class 'Vehicle' can have subclasses like 'Car' and 'Truck'. Both Car and Truck can have a method 'drive()', bu...read more

Technical questions related to software engineering

• Inheritance is a mechanism in OOP where a class inherits properties and methods from another class

• Polymorphism is the ability of an object to take on multiple forms

• Function overloading is when multiple functions have the same name but different parameters

• Function overriding is when a subclass provides a different implementation of a method that is already defined in its superclass

• To select data from a table, use SQL SELECT st...read more

We use version X of SNOW.

• The current version of SNOW we use is X.

• We upgraded to version X last year.

• All incidents are logged in SNOW version X.

Key factors for creating a client solution

• Understanding client's needs and goals

• Identifying potential challenges and limitations

• Developing a customized solution

• Ensuring scalability and flexibility

• Providing ongoing support and maintenance

• Collaborating with the client throughout the process

Yes, we can differ an OS update for an iOS device using an MDM solution.

• MDM solution allows administrators to control the update process

• Administrators can choose to delay or skip updates for certain devices

• This can be done by creating update policies and assigning them to specific devices or groups

• For example, an organization may choose to delay updates for a few days to ensure compatibility with their internal apps

• MDM solutions like Jamf, Microsoft Intune, and VMware Workspa...read more

Constructor and method overloading and overriding are concepts in object-oriented programming.

• Constructor overloading is when a class has multiple constructors with different parameters.

• Method overloading is when a class has multiple methods with the same name but different parameters.

• Method overriding is when a subclass provides its own implementation of a method that is already defined in its superclass.

• Constructor overloading is used to create objects with different initia...read more

Return the difference between maximum and minimum number's count in an array of strings.

• Convert the array of strings to an array of integers

• Use Math.max() and Math.min() to find the maximum and minimum numbers in the array

• Count the occurrences of the maximum and minimum numbers using a loop

• Return the difference between the counts

Code to print the difference of a number and its reverse

• Convert the number to string

• Reverse the string

• Convert the reversed string back to number

• Subtract the original number from the reversed number

• Print the result

Yes, I have experience working in a plant.

• Working in a plant involves managing and overseeing various engineering projects.

• It requires knowledge of plant operations, equipment, and processes.

• Plant engineers are responsible for ensuring the efficiency and safety of plant operations.

• They collaborate with different teams, such as maintenance, production, and quality control.

• Examples of plant engineering projects include designing and implementing new production lines, optimizing...read more

Private IP addresses ranges are reserved for internal networks and not routable on the internet.

• Private IP addresses are used within a local network and are not accessible from the internet

• There are three ranges of private IP addresses: 10.0.0.0 - 10.255.255.255, 172.16.0.0 - 172.31.255.255, and 192.168.0.0 - 192.168.255.255

• Private IP addresses are commonly used in home and office networks to allow devices to communicate with each other

Singleton pattern restricts the instantiation of a class to one object.

• Create a private constructor to restrict object creation.

• Create a static method to return the single instance of the class.

• Use lazy initialization to create the instance only when needed.

• Ensure thread safety by using synchronized keyword or double-checked locking.

• Commonly used in database connections, logging, and configuration settings.

Social media is a necessary evil as it has both positive and negative impacts on society.

• Social media has revolutionized communication and made it easier to connect with people.

• It has also provided a platform for businesses to reach a wider audience and for individuals to showcase their talents.

• However, social media has also been linked to mental health issues such as anxiety and depression.

• It has also been criticized for spreading fake news and misinformation.

• Overall, social...read more

I am familiar with several databases other than MySQL.

• I have experience with PostgreSQL, Oracle, MongoDB, and Microsoft SQL Server.

• I am also familiar with NoSQL databases such as Cassandra and Couchbase.

• I have worked with various cloud-based databases like Amazon RDS and Google Cloud SQL.

MCB is a type of source of electrical energy used for protection against overload and short circuit.

• MCB stands for Miniature Circuit Breaker.

• It is a device that automatically switches off the electrical circuit during abnormal conditions such as overload or short circuit.

• MCBs are commonly used in residential, commercial, and industrial electrical installations.

• They provide protection to electrical equipment and prevent damage or fire hazards.

• MCBs are more reliable and faster ...read more

Yes, I have a strong interest in data science. I have worked on projects involving predictive analytics and machine learning.

• Developed a predictive maintenance model for manufacturing equipment

• Implemented a machine learning algorithm to optimize supply chain logistics

• Utilized data visualization techniques to identify trends and patterns in customer behavior

EC2 is a web service that provides resizable compute capacity in the cloud.

• EC2 stands for Elastic Compute Cloud

• It allows users to rent virtual computers on which to run their own applications

• EC2 instances can be easily scaled up or down based on demand

• To build and deploy on AWS, one can use services like AWS CodeDeploy, AWS CodePipeline, and AWS Elastic Beanstalk

Colors on Google Maps indicate different types of locations and features.

• Blue: water bodies

• Green: parks and forests

• Yellow: areas of interest

• Orange: shopping areas

• Red: traffic congestion

• Gray: areas with limited Street View coverage

Inbound and outbound callings refer to different types of phone calls made by individuals or organizations.

• Inbound calling involves receiving incoming calls from customers or clients.

• Outbound calling involves making outgoing calls to customers or clients.

• Inbound calls are typically related to customer service, support, or inquiries.

• Outbound calls are often made for sales, marketing, or follow-up purposes.

• Examples of inbound calling include answering customer queries or provid...read more

The time taken to handle a query or ticket depends on various factors such as complexity, resources available, and priority.

• The time taken can vary from a few minutes to several hours or even days.

• Simple queries or tickets that require basic troubleshooting can be resolved quickly.

• Complex issues that require in-depth analysis or involvement of multiple teams may take longer to resolve.

• The availability of resources, such as skilled technicians or necessary equipment, can impac...read more

CTE, Temp table and Table variable are used to store temporary data in SQL Server.

• CTE (Common Table Expression) is a temporary named result set that can be referenced within a SELECT, INSERT, UPDATE, or DELETE statement.

• Temp table is a physical table that is created in the tempdb database and can be used to store temporary data.

• Table variable is a variable that can store a result set for later use and is similar to a temp table but is stored in memory.

• CTE is useful for recurs...read more

My programming language of interest is Python.

• Python is a versatile language used in web development, data analysis, machine learning, and more.

• It has a simple syntax and is easy to learn for beginners.

• Python has a large community and a vast library of modules and frameworks.

• Examples of Python-based frameworks include Django, Flask, and PyTorch.

No, Java doesn't support multiple inheritance.

• Java only supports single inheritance through classes and interfaces.

• However, interfaces can be implemented multiple times.

• To achieve multiple inheritance-like behavior, composition can be used.

I am able to type 80 words per minute.

• I have a typing speed of 80 words per minute.

• I am proficient in touch typing and can accurately type at a fast pace.

• My typing speed allows me to efficiently complete tasks that require extensive typing, such as data entry or transcription.

• I have consistently maintained a high typing speed throughout my career.

• I am confident in my ability to meet deadlines and handle large volumes of typing work.

To start Spring Boot app with class error, disable strict classpath checking.

• Add 'spring.main.lazy-initialization=true' to application.properties.

• Disable strict classpath checking by adding 'spring.main.allow-bean-definition-overriding=true'.

• Use 'spring.main.banner-mode=off' to disable banner.

• Use 'spring.main.web-environment=false' to disable web environment.

• Use 'spring.main.headless=true' to enable headless mode.

Deadlock is a situation in which two or more processes are unable to proceed because each is waiting for the other to release a resource.

• Deadlock occurs when two or more processes are stuck in a circular waiting state.

• It happens when processes compete for resources and each process holds a resource that another process needs.

• Four necessary conditions for deadlock are mutual exclusion, hold and wait, no preemption, and circular wait.

• Examples of deadlock include the dining phil...read more

I know about object-oriented programming, data types, control structures, exception handling, and collections in Java.

• Object-oriented programming concepts like inheritance, polymorphism, and encapsulation

• Data types including primitive types, arrays, and strings

• Control structures like if-else statements, loops, and switch statements

• Exception handling using try-catch blocks

• Collections like ArrayList, HashMap, and LinkedList

• Java frameworks like Spring and Hibernate

A foreign key is a column or set of columns in a database table that refers to the primary key of another table.

• A foreign key ensures referential integrity between two tables.

• It is used to establish a relationship between two tables.

• It helps in maintaining data consistency and accuracy.

• For example, a customer table may have a foreign key that refers to the primary key of an orders table.

Yes, social media can be used for educational purposes.

• Social media provides a platform for sharing educational content and resources.

• It allows for collaboration and communication among students and teachers.

• Social media can enhance learning through interactive discussions and real-time feedback.

• It can also help in reaching a wider audience and promoting educational initiatives.

• Examples include educational YouTube channels, online courses on platforms like Coursera, and educa...read more

List is an interface in java collection.

• List is a part of the Java Collection Framework.

• It is an ordered collection of elements.

• It allows duplicate elements and null values.

• Some common implementations of List are ArrayList, LinkedList, and Vector.

Adapter pattern converts the interface of a class into another interface that clients expect.

• Adapter pattern is used to make incompatible interfaces work together.

• It is used when we want to reuse an existing class that doesn't have the interface we need.

• It involves creating a wrapper class that translates the interface of one class into another interface.

• An example is using a USB to Ethernet adapter to connect a computer to a network.

• It is possible to replace it with other pa...read more

Equivalence partitioning is a technique used in software testing to divide input data into groups that are expected to exhibit similar behavior.

• Dividing input data into groups that are expected to behave similarly

• Testing only one input from each group

• Examples: age groups, income brackets, product categories

To check uptime of Routers & Switches, use the show version command.

• Log in to the device using SSH or Telnet.

• Enter the show version command.

• Look for the line that starts with 'uptime'.

• The uptime will be displayed in the format of days, hours, minutes, and seconds.

• Alternatively, you can use network monitoring tools like Nagios, PRTG, or SolarWinds to monitor uptime.

• These tools can provide alerts when a device goes down or when uptime falls below a certain threshold.

Joins in database management systems are used to combine rows from two or more tables based on a related column between them.

• Joins are used to retrieve data from multiple tables based on a related column.

• Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

• INNER JOIN returns rows when there is at least one match in both tables.

• LEFT JOIN returns all rows from the left table and the matched rows from the right table.

• RIGHT JOIN returns all rows from the...read more

Multitasking refers to the ability to perform multiple tasks simultaneously or switch between tasks quickly.

• Multitasking involves dividing your attention and focus between different tasks at the same time.

• It can be achieved by efficiently managing time, prioritizing tasks, and staying organized.

• Examples include checking emails while on a conference call, or listening to music while working on a project.

OOPs is needed for better code organization, reusability, and maintainability.

• OOPs allows for code organization by breaking down complex systems into smaller, manageable objects.

• It promotes reusability by allowing objects to be used in different parts of the codebase.

• Inheritance and polymorphism in OOPs enable code reuse and reduce redundancy.

• Encapsulation in OOPs protects data and provides a clear interface for interacting with objects.

• OOPs facilitates maintainability by mak...read more

POP, IMAP, and SMTP are email protocols used for sending and receiving emails. Each protocol uses different port numbers.

• POP (Post Office Protocol) is used for downloading emails from a server to a client. It uses port number 110.

• IMAP (Internet Message Access Protocol) is used for accessing emails on a server from a client. It uses port number 143.

• SMTP (Simple Mail Transfer Protocol) is used for sending emails from a client to a server. It uses port number 25.

• Secure versions ...read more

Deadlock occurs when two or more processes are blocked, waiting for each other to release resources.

• Conditions for deadlock are mutual exclusion, hold and wait, no preemption, and circular wait.

• Deadlock can be avoided by using techniques such as resource allocation graph, banker's algorithm, and deadlock detection and recovery.

• Resource allocation graph is a directed graph that shows the allocation and request of resources by processes.

• Banker's algorithm is a resource allocati...read more

DNS, DHCP, networking, troubleshooting, and Active Directory are all related to managing and troubleshooting network services and infrastructure.

• DNS (Domain Name System) is responsible for translating domain names into IP addresses.

• DHCP (Dynamic Host Configuration Protocol) is used to automatically assign IP addresses to devices on a network.

• Networking involves the design, implementation, and management of computer networks.

• Troubleshooting is the process of identifying and re...read more

Assets are considered differently based on their liquidity and volatility.

• IRA assets are considered less liquid and more stable, hence 60% is considered

• Stocks are more volatile and hence only 70% is considered

• Large deposit definition varies based on the bank's policy

• This approach helps in assessing the risk associated with different types of assets

Fraud is a deliberate deception for personal gain. It can be stopped by implementing fraud prevention measures.

• Fraud can occur in various forms such as identity theft, credit card fraud, insurance fraud, etc.

• To prevent fraud, companies can implement measures such as background checks, fraud detection software, and employee training.

• Consumers can protect themselves by being cautious of suspicious emails, phone calls, and websites, and regularly monitoring their financial accou...read more

Java is generally faster than Python due to its compiled nature and optimized execution.

• Java is a compiled language, while Python is an interpreted language.

• Java code is converted into bytecode and then executed by the Java Virtual Machine (JVM), which allows for faster execution.

• Python code is interpreted line by line, resulting in slower execution compared to Java.

• Java has better performance for computationally intensive tasks and large-scale applications.

• Python, on the oth...read more

Staging a server in VM and physical environment

• Create a VM with the same specifications as the physical server

• Install the same operating system and software on both the VM and physical server

• Configure the VM to mimic the network settings of the physical server

• Test the applications and services on the VM before deploying to the physical server

• Ensure that the VM and physical server have the same hardware and software configurations

• Use tools like VMware vSphere or Microsoft Hype...read more

Polymorphism is the ability of an object to take on many forms.

• Polymorphism allows objects of different classes to be treated as if they are of the same class.

• It is achieved through method overriding and method overloading.

• Example: A parent class Animal can have child classes like Dog, Cat, and Bird. Each child class can have its own implementation of the method 'makeSound', but they can all be called using the same method name.

• Polymorphism makes code more flexible and reusab...read more

OOPS stands for Object-Oriented Programming System. It is a programming paradigm based on the concept of objects.

• A class is a blueprint or template for creating objects that defines its properties and methods.

• An object is an instance of a class that has its own state and behavior.

• C++ supports single, multiple, and multilevel inheritance.

• The protected access specifier allows access to the member variables and functions within the class and its derived classes.

• Encapsulation is ...read more

Shallow copy and deep copy are two ways of copying objects in programming.

• Shallow copy creates a new object but references the same memory location as the original object.

• Deep copy creates a new object and allocates new memory for it, copying the values of the original object.

• Shallow copy is faster and uses less memory, but changes to the original object affect the copied object.

• Deep copy is slower and uses more memory, but changes to the original object do not affect the cop...read more

Data abstraction is the process of hiding complex implementation details and providing a simplified interface.

• Abstraction allows users to interact with complex systems without needing to understand the underlying complexity.

• An example of data abstraction is using a smartphone. Users can make calls, send messages, and use apps without knowing the intricate details of how the device works.

• Another example is a car dashboard. It provides essential information like speed, fuel lev...read more

The risks associated with the payroll industry include compliance issues, data security breaches, and errors in processing.

• Compliance issues: Payroll regulations and tax laws are constantly changing, and non-compliance can result in penalties and legal consequences.

• Data security breaches: Payroll systems contain sensitive employee information, making them a target for hackers and identity theft.

• Processing errors: Mistakes in payroll calculations or payments can lead to financ...read more

To connect data bricks with storage account, you need to create a storage account and configure it in the data bricks workspace.

• Create a storage account in Azure portal

• Get the connection string of the storage account

• In the data bricks workspace, go to 'Storage' and click on 'Create'

• Select the storage account type and provide the connection string

• Test the connection and save the configuration

To retrieve all values from a drop down, we can use the getOptions() method and store the values in an array of strings.

• Locate the drop down element using any of the locators

• Create a Select class object by passing the drop down element as a parameter

• Use the getOptions() method to retrieve all the options from the drop down

• Store the options in an array of strings

The P2P Cycle refers to the end-to-end process of purchasing goods or services, from requisition to payment.

• The cycle starts with a purchase requisition, where a request is made for goods or services.

• The requisition is then approved by the appropriate authority.

• A purchase order is created based on the approved requisition, specifying the details of the purchase.

• The purchase order is sent to the supplier or vendor.

• Upon receiving the goods or services, the receiving department ...read more

Questions related to Apache Spark, HIVE, and SQL.

• Apache Spark is a distributed computing framework used for big data processing.

• Dataframe, Datasets, and RDD are the core abstractions in Spark.

• Transformations and Actions are the two types of operations in Spark.

• Optimization techniques like caching, partitioning, and broadcasting can improve Spark performance.

• HIVE is a data warehousing tool that uses SQL-like syntax to query data stored in Hadoop.

• Dynamic and Static Partitioning...read more

Screenshots are captured images of the current screen. They are used for documentation, troubleshooting, and sharing information.

• Screenshots can be taken using built-in tools like Snipping Tool or keyboard shortcuts like Print Screen.

• Screenshots can be used to document software bugs or errors for troubleshooting purposes.

• Screenshots can be shared with others to provide visual information or instructions.

• Screenshots can be used for training or educational purposes.

• Screenshots ...read more

The solution to the automata coding question involves designing a finite state machine to recognize a specific pattern or language.

• Understand the requirements of the automata problem and define the states, transitions, and final states.

• Implement the finite state machine using a programming language like Python or C++.

• Test the automata with different inputs to ensure it correctly recognizes the desired pattern.

• Optimize the automata design for efficiency if needed.

• Example: Desi...read more

Polymorphism allows objects of different classes to be treated as if they were of the same class.

• Polymorphism enables code reuse and flexibility in object-oriented programming.

• It allows for the creation of generic code that can work with objects of different classes.

• Examples include method overloading and overriding, and interfaces in Java.

• Polymorphism can improve code readability and maintainability.

• It is a key concept in inheritance and abstraction.

OOP focuses on objects and their interactions, while functional programming emphasizes on functions and their behavior.

• OOP uses classes and objects to encapsulate data and behavior, while functional programming uses pure functions.

• In OOP, objects have state and behavior, while in functional programming, functions have no side effects.

• OOP emphasizes on inheritance and polymorphism, while functional programming emphasizes on higher-order functions and recursion.

• Examples of OOP ...read more

Java is a popular object-oriented programming language used for developing various applications.

• Java is platform-independent and can run on any operating system

• It is used for developing web, mobile, and desktop applications

• Java is known for its security features and is widely used in enterprise applications

• It follows the OOPs concept and supports multithreading

• Some popular Java frameworks include Spring, Hibernate, and Struts

C language is a high-level programming language used for system programming and application development.

• Developed by Dennis Ritchie at Bell Labs in 1972

• Used for developing operating systems, compilers, and embedded systems

• Influenced the development of many other programming languages such as C++, Java, and Python

DR stands for Disaster Recovery. It involves implementing strategies and procedures to ensure business continuity in the event of a disaster.

• DR is the process of preparing for and recovering from a disaster that affects the availability of IT infrastructure and services.

• It includes creating backup systems, replicating data, and establishing failover mechanisms.

• DR plans should be regularly tested and updated to ensure effectiveness.

• AWS provides various services like AWS Backup...read more