2500+ Interview Questions and Answers

You need to take 36 turns to find a perfect pair.

• You need to pick 19 gloves to ensure a perfect pair.

• The worst case scenario is picking 18 white gloves and then the 19th glove is black.

• In that case, you need to pick 17 more gloves to find a black one and complete the pair.

Find N-th Fibonacci number using matrix exponentiation and return modulo 10^9+7.

• Implement a function to find N-th Fibonacci number using matrix exponentiation.

• Return the answer modulo 10^9+7.

• Use the formula F(n) = F(n-1) + F(n-2) with F(1) = F(2) = 1.

• The time complexity should be better than O(N).

• The constraints are 1 <= T <= 10 and 1 <= N <= 10^5.

Cut the cake in half horizontally, then vertically, and finally cut each half diagonally.

• Cut the cake horizontally through the middle.

• Cut the cake vertically through the middle.

• Cut each half diagonally from corner to corner.

• Ensure each cut is made symmetrically to get 8 equal pieces.

• Example: https://www.youtube.com/watch?v=ZdGmuCJzQFo

Interview questions for Senior Consultant role

• Update sets are used to move customizations from one instance to another

• To move multiple update sets at once, use the Update Set Migration plugin

• Custom applications can be developed using ServiceNow's App Creator

• Turnstile activity in workflow is used to loop back to a previous activity

• Activities in workflows include approvals, notifications, and subflows

• To copy fields from incident table to task record, use a UI action with script...read more

Sort a list of people by their cities and states.

• Use a sorting algorithm like quicksort or mergesort.

• Create a custom comparator function that compares the city and state of each person.

• If two people belong to the same city and state, sort them by their names.

• Example: [{name: 'John', city: 'New York', state: 'NY'}, {name: 'Jane', city: 'Boston', state: 'MA'}]

• Example output: [{name: 'Jane', city: 'Boston', state: 'MA'}, {name: 'John', city: 'New York', state: 'NY'}]

I have experience using JIRA and HP ALM for test management and defect tracking.

• I have used JIRA extensively for managing test cases, test plans, and tracking defects.

• I have also worked with HP ALM for test management and defect tracking.

• Both tools have robust reporting capabilities that allow for easy tracking of project progress and defect resolution.

• In addition, I have experience integrating these tools with other software development tools such as Jenkins and Git for cont...read more

The seven layers of networking refer to the OSI model which defines how data is transmitted over a network.

• The seven layers are: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

• Each layer has a specific function and communicates with the layers above and below it.

• For example, the Physical layer deals with the physical transmission of data, while the Application layer deals with user interfaces and applications.

• Understanding the OSI model is imp...read more

1) Material, Vendor, Customer, and Service master data are types of master data in SAP MM.

• Material master data contains information about materials used in production or procurement.

• Vendor master data contains information about the vendors or suppliers.

• Customer master data contains information about the customers.

• Service master data contains information about the services provided.

As a Scrum Master, I would handle the situation by following these steps:

• Assess the impact of the developer's absence on the critical user story

• Communicate with the team and stakeholders about the situation

• Identify if there are any other team members who can take over the work

• If no immediate replacement is available, prioritize the critical user story and adjust the sprint plan accordingly

• Work with the Product Owner to manage expectations and potentially reprioritize other us...read more

Interview questions for Senior Consultant role related to MAM, MDM, Android and Windows device enrollment, APNS, and Intune app deployment.

• MDM is needed for complete device management and control, while MAM is focused on securing and managing specific applications and data.

• Different Android device enrollment methods include QR code, Near Field Communication (NFC), and Zero-touch enrollment.

• Apple Push Notification Services (APNS) is a service used to send push notifications to...read more

Interview questions for Senior Consultant position on JCL and DB2

• JCL: passing data using DSN file, SYSIN, and PARM parameters

• JCL: accepting data passed from PARM parameter using linkage section

• JCL: making a step run in case of job failure using COND=ONLY

• JCL: explaining DISP position

• JCL: writing logic to copy matching data from two input files based on a common key

• DB2: explaining cursor not defined for selecting more than one row from table

• DB2: life cycle of cursor - declare, ...read more

To achieve different pricing procedures for sales order and billing document in SAP SD, you can use condition technique and pricing procedure determination.

• Create separate pricing procedures for sales order and billing document

• Assign the pricing procedures to respective document types

• Configure condition technique to determine the pricing procedure based on document type

• Use condition records and access sequences to define pricing conditions

• Maintain condition records for each p...read more

Possible causes of user not able to login to an application

• Incorrect username or password

• Account locked or disabled

• Expired password

• Network connectivity issues

• Application server down

• Incorrect permissions or access rights

• Firewall blocking access

• Authentication server issues

• Application configuration errors

Yes

• OOP stands for Object-Oriented Programming

• It is a programming paradigm that organizes code into objects

• OOP concepts include encapsulation, inheritance, and polymorphism

• Encapsulation allows bundling of data and methods into a single unit

• Inheritance enables the creation of new classes based on existing ones

• Polymorphism allows objects of different classes to be treated as the same type

• Example: A car class can have properties like color and speed, and methods like start and st...read more

Questions related to SAP SD implementation and processes.

• Pricing procedure is determined based on condition technique and can be customized as per business requirements.

• ASAP methodology involves various phases like project preparation, business blueprint, realization, final preparation, and go-live and support.

• GAPS during implementation project can arise due to differences between business requirements and system capabilities.

• Condition technique involves defining access seque...read more

I have experience in functional, regression, integration, and acceptance testing. On average, I write 20-30 test cases per day.

• Functional testing to ensure the software meets the requirements

• Regression testing to ensure new changes do not break existing functionality

• Integration testing to ensure different components work together

• Acceptance testing to ensure the software meets the user's needs

• On average, I write 20-30 test cases per day

• Examples include testing a new feature on...read more

Agile fundamentals are a set of principles and values that prioritize flexibility, collaboration, and continuous improvement in software development. Waterfall model is a traditional linear approach to software development.

• Agile emphasizes iterative development and customer collaboration

• Agile values individuals and interactions over processes and tools

• Agile promotes responding to change over following a plan

• Waterfall model follows a sequential approach to software development...read more

Python has several built-in datatypes including numeric, sequence, and mapping types.

• Numeric types include integers, floating-point numbers, and complex numbers.

• Sequence types include lists, tuples, and range objects.

• Mapping types include dictionaries.

• Other datatypes include boolean, bytes, and sets.

The three pillars of Scrum are transparency, inspection, and adaptation. They are interrelated and support the Scrum framework.

• Transparency ensures that all information is visible and accessible to the team, stakeholders, and customers.

• Inspection involves regularly reviewing the progress, artifacts, and processes to identify any deviations or issues.

• Adaptation refers to making necessary changes based on the inspection results to improve the product and the process.

• These pilla...read more

Explaining Microservices architecture, communication, transactions, annotations, authentication, and API validation.

• Our project follows a Microservices architecture where each service is independently deployable and scalable.

• Services communicate with each other using RESTful APIs and message brokers like Kafka.

• We use distributed transactions and compensating transactions to manage transactions and handle failure scenarios.

• Some of the Spring Boot Microservices annotations we u...read more

The profit in the P&L a/c is transferred to the retained earnings account.

• Profit is transferred to the retained earnings account to reflect the accumulated profits of the company.

• Retained earnings account is a part of the equity section on the balance sheet.

• The transfer is done at the end of the accounting period.

• Retained earnings can be used for reinvestment, dividends, or other purposes.

• Example: If a company has a profit of $100,000 in the P&L a/c, it will be transferred to...read more

Yes, it is possible to concatenate a string and integer using type conversion.

• Convert the integer to a string using str() function and then concatenate with the string.

• Use format() method to insert the integer value into the string.

• Use f-strings to directly insert the integer value into the string.

XPath is a language used to locate elements in an XML or HTML document. Absolute and relative XPaths differ in their starting point.

• XPath is used to navigate through elements and attributes in an XML or HTML document

• Elements can be located using absolute or relative XPaths

• Absolute XPaths start from the root node and are more specific but less flexible

• Relative XPaths start from the current node and are more flexible but less specific

Yes, Java is platform-independent because of its 'write once, run anywhere' principle.

• Java programs are compiled into bytecode, which can be executed on any platform with a Java Virtual Machine (JVM).

• The JVM acts as an interpreter, translating the bytecode into machine code specific to the underlying platform.

• This allows Java programs to run on different operating systems and hardware architectures without modification.

• For example, a Java program developed on a Windows machin...read more

To validate data after page refresh in Selenium, we can refresh the page and then use explicit wait to validate the data.

• Refresh the page using driver.navigate().refresh() method

• Use explicit wait to wait for the element to be visible on the page

• Validate the data using getText() or getAttribute() method

• Example: driver.navigate().refresh(); WebDriverWait wait = new WebDriverWait(driver, 10); wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath("xpath_of_element")))...read more

Fields in EXTC related to IT

• Digital Signal Processing

• Microprocessors and Microcontrollers

• Computer Networks

• Data Communication

• Wireless Communication

• Mobile Communication

• Internet of Things

• Cloud Computing

• Artificial Intelligence

• Machine Learning

Azure blob storage supports three file replication strategies: LRS, ZRS, and GRS.

• LRS (Locally Redundant Storage) replicates data within a single data center.

• ZRS (Zone Redundant Storage) replicates data across multiple data centers within a single region.

• GRS (Geo-Redundant Storage) replicates data across multiple data centers in two separate regions for added redundancy.

• Read-access geo-redundant storage (RA-GRS) provides read access to the data in the secondary region in case ...read more

The code sets values for three integers and performs conditional and loop operations to print the sum of two integers.

• The value of 'a' is set to 11, 'b' to 12, and 'c' to 10.

• The 'if' condition checks if 'b' is greater than 0 and increments 'b' if true, else increments 'a'.

• The 'for' loop runs for each value of 'b' from 0 to 5 and increments 'a' by 1.

• The final output is the sum of 'a' and 'c', which is 18.

To increase computer speed, optimize startup programs, remove malware, upgrade hardware, and clear disk space.

• Optimize startup programs to reduce the number of programs running at startup

• Remove malware using antivirus software

• Upgrade hardware such as RAM or SSD

• Clear disk space by deleting unnecessary files and programs

• Disable visual effects to improve performance

Velocity is the amount of work completed in a sprint, while capacity is the amount of work a team can handle in a sprint.

• Velocity is a measure of the team's productivity in completing user stories or tasks in a sprint.

• Capacity is the amount of work a team can handle in a sprint, taking into account factors such as team size, availability, and skill level.

• Velocity is calculated by dividing the total number of story points completed in a sprint by the length of the sprint in da...read more

Kernel files are located in /usr/sap//SYS/exe//

• Kernel files are the core components of the SAP system

• They are responsible for managing system resources and executing processes

• Kernel files are platform-specific and are stored in the /usr/sap//SYS/exe// directory

• Examples of kernel files include disp+work, icman, and msg_server

APNS is Apple Push Notification Service used to send push notifications to iOS devices.

• APNS is used by iOS apps to send push notifications to users.

• If APNS is not renewed on time, push notifications will not be delivered to users.

• This can result in a poor user experience and loss of engagement.

• Renewing APNS requires a valid Apple Developer account and proper configuration of the app's push notification settings.

Interview questions for Automation Test Engineer

• Sanity testing is a subset of regression testing while smoke testing is a subset of acceptance testing

• Waits in Selenium are used to synchronize the test execution with the application's response

• Types of frameworks include data-driven, keyword-driven, and hybrid frameworks

• Reading data from Excel can be done using Apache POI library

• Handling dropdown in Selenium can be done using Select class

• Database automation can be done using JD...read more

Poker is an estimation technique used in Agile project management. Fibonacci series is used for story points to reflect uncertainty.

• Poker is a collaborative estimation technique where team members assign story points to user stories.

• It helps in determining the effort required to complete a user story.

• Fibonacci series (0, 1, 2, 3, 5, 8, 13, etc.) is used to reflect the uncertainty and complexity of the work.

• Larger numbers in the Fibonacci series indicate higher uncertainty and...read more

Parameterized mapping is a feature in SAP PI that allows dynamic mapping based on input parameters.

• Parameterized mapping enables the mapping of different source and target structures based on input parameters

• It allows for flexible and reusable mappings by using parameters to determine the mapping logic

• Parameters can be defined and passed at runtime to dynamically determine the mapping behavior

• Implementation involves defining parameters in the mapping program and using them in...read more

The pillars of Scrum are transparency, inspection, and adaptation.

• Transparency: All information about the project must be visible and understandable to everyone involved.

• Inspection: Regularly inspect the progress and the product to identify any deviations or issues.

• Adaptation: Based on the inspection, make necessary changes and adjustments to improve the product and the process.

Group tags and Windows Autopilot are tools used for managing and deploying devices in an organization.

• Group tags are used to organize devices into logical groups for easier management.

• Windows Autopilot is a cloud-based tool for deploying and configuring Windows devices.

• Autopilot uses group tags to assign devices to specific profiles and configurations.

• This allows for faster and more efficient deployment of devices in an organization.

• For example, a company could use group tags...read more

Deploying an application using Microsoft Intune

• Create an app in Intune

• Upload the app package

• Assign the app to a group of users or devices

• Configure deployment settings

• Monitor deployment status

Yes, my experience in operations will help me provide effective front line support.

• My experience in operations has given me a strong understanding of how different processes work and how to troubleshoot issues.

• This knowledge will be useful in providing front line support as I can quickly identify the root cause of problems and provide effective solutions.

• I am also skilled in communication and can effectively convey technical information to non-technical stakeholders.

• For examp...read more

Multithreading is the ability of a CPU to execute multiple threads concurrently, improving performance and responsiveness.

• Multithreading allows for parallel execution of tasks, utilizing multiple CPU cores.

• It enables concurrent processing, where multiple threads can execute simultaneously.

• Thread synchronization mechanisms like locks and semaphores are used to prevent data inconsistencies.

• Multithreading can be used to improve user interface responsiveness and handle background...read more

Firewalls are network security devices that monitor and control incoming and outgoing network traffic. UTM firewalls provide additional security features such as antivirus, intrusion prevention, and content filtering. Stateless inspection examines each packet individually, while stateful inspection tracks the state of connections between packets.

• Firewalls monitor and control network traffic

• UTM firewalls provide additional security features

• Stateless inspection examines each pa...read more

A DBMS is suggested for efficient data management. It offers advantages like data security, scalability, and data integrity.

• DBMS ensures data security by providing access control and authentication mechanisms.

• It allows for efficient data retrieval and manipulation through indexing and query optimization.

• DBMS offers scalability by allowing for easy addition of new data and users.

• It ensures data integrity by enforcing constraints and providing backup and recovery mechanisms.

• Exa...read more

Generating random emails in Python with constant domain

• Use the random module to generate random strings for the username part of the email

• Combine the random username with the constant domain name

• Ensure the generated email is unique if required

Plant outside the country refers to a plant location that is situated outside the country where the company is headquartered.

• Plant refers to a physical location where materials are produced or stored.

• Plant outside the country is a plant location situated outside the country where the company is headquartered.

• Plant outside the country may have different legal requirements and regulations compared to the plants within the country.

• Plant outside the country may have different cur...read more

OSPF traffic manipulation and linking indirectly connected areas to backbone area using LSAs.

• OSPF traffic can be manipulated using various methods such as adjusting the cost metric or using route redistribution.

• To link indirectly connected areas to the backbone area, a virtual link can be created through a transit area.

• OSPF LSAs (Link State Advertisements) are packets that contain information about the network topology and are used by OSPF routers to build a complete map of t...read more

Workflow, trigger, reports, roles, profiles, permission set, and sharing rules are all important features in Salesforce.

• Workflow is a series of automated steps that can be used to streamline business processes.

• Triggers are used to execute code before or after a record is inserted, updated, or deleted.

• Reports are used to display data in a visual format, such as a table or chart.

• Roles are used to define the hierarchy of users in an organization.

• Profiles are used to define the p...read more

Binary search technique can be used to find the index of an element in an almost sorted array.

• Binary search is efficient for large arrays.

• The array must be sorted in ascending or descending order.

• If the element is not found, return -1.

• Example: [1, 3, 5, 7, 9], target = 5, output = 2

Synchronization is the process of coordinating the execution of multiple threads to ensure proper order of execution.

• Synchronization can be achieved using techniques like locks, semaphores, and monitors.

• Locks are used to ensure that only one thread can access a shared resource at a time.

• Semaphores are used to control access to a shared resource by limiting the number of threads that can access it at once.

• Monitors are used to ensure that only one thread can execute a critical ...read more

To plan the capacity for a sprint, consider team velocity, individual availability, and any external factors.

• Calculate the team's velocity by reviewing past sprints and measuring the average number of story points completed.

• Consider individual team member availability, taking into account vacations, holidays, and other commitments.

• Factor in any external dependencies or constraints that may impact the team's capacity, such as shared resources or dependencies on other teams.

• Adj...read more

Answering questions related to Technical Lead interview

• I have experience in containerization and orchestration tools like Docker and Swarm, which will help me quickly learn and adapt to Kubernetes

• I have a strong understanding of distributed systems and cloud infrastructure, which are key components of Kubernetes architecture

• Steps to deploy Kubernetes involve setting up a cluster, configuring nodes, installing Kubernetes components, and deploying applications using YAML files

• I...read more

Different types of Android device enrollment methods

• QR code enrollment

• NFC enrollment

• Zero-touch enrollment

• Samsung Knox Mobile Enrollment

• Manual enrollment

final keyword is used to declare a constant value while finally is used to define a block of code that will be executed after a try-catch block.

• final keyword is used to declare a variable whose value cannot be changed

• finally keyword is used to define a block of code that will be executed after a try-catch block

• final can be used with classes, methods, and variables

• finally is always used with try-catch block

• Example: final int x = 10; try { //some code } catch(Exception e) { //s...read more

I cannot give a star rating without knowing the specific context or criteria being evaluated.

• I would need more information about what is being rated to give an accurate star rating.

• It would be helpful to know the specific criteria or standards being used to evaluate the subject.

• Without context, a star rating would be arbitrary and meaningless.

• For example, if we are discussing a restaurant, I would need to know about the quality of the food, service, atmosphere, etc. before gi...read more

Object-oriented language is a programming paradigm that uses objects to represent data and methods.

• Objects contain data and methods that operate on that data.

• Encapsulation, inheritance, and polymorphism are key concepts in object-oriented programming.

• Examples of object-oriented languages include Java, C++, and Python.