30+ Interview Questions and Answers

To troubleshoot a user not able to login, check for account lockouts, password issues, network connectivity, and system errors.

• Check if the user's account is locked or disabled

• Verify if the user's password has expired or needs to be reset

• Ensure network connectivity is working properly

• Check for any system errors or issues that may prevent login

• Review system logs for any relevant error messages

• Confirm if the user is using the correct login credentials

To troubleshoot a server not able to login, check network connectivity, verify credentials, and review system logs.

• Check network connectivity to ensure the server is reachable

• Verify the correctness of login credentials

• Review system logs for any error messages or indications of login failures

• Restart the server if necessary

• Check for any recent system updates or changes that may have caused the login issue

These are common network protocols used for communication and file transfer.

• SSH (Secure Shell) is a secure protocol used for remote login and secure file transfer.

• HTTP (Hypertext Transfer Protocol) is used for transmitting web pages and other resources over the internet.

• HTTPS (HTTP Secure) is the secure version of HTTP, encrypted with SSL/TLS.

• FTP (File Transfer Protocol) is used for transferring files between a client and a server.

• NFS (Network File System) allows remote file ...read more

To troubleshoot HTTPS not working, check certificate validity, firewall settings, and web server configuration.

• Check if the SSL/TLS certificate is valid and properly installed

• Verify if the web server is configured to listen on the correct HTTPS port (usually 443)

• Ensure that the firewall allows incoming connections on the HTTPS port

• Check if the SSL/TLS protocols and cipher suites are correctly configured

• Inspect the web server logs for any error messages related to HTTPS

• Test HT...read more

Troubleshooting steps for not being able to login through putty

• Check network connectivity

• Verify correct IP address and port number

• Ensure SSH service is running on the server

• Check firewall settings

• Verify correct username and password

• Check if the server is reachable and not down

To rollback patches through Yum, use the yum history command and the yum history undo command.

• Use the 'yum history' command to view the history of installed packages and patches.

• Identify the transaction ID of the patch you want to rollback.

• Use the 'yum history undo ' command to rollback the patch.

• Confirm the rollback by reviewing the output and checking the system's package status.

Tar utility is used to create backups by compressing files and directories.

• To create a backup using tar, use the 'tar' command followed by the appropriate options and arguments.

• Specify the files or directories to be included in the backup.

• Use the '-cvf' options to create a new tar archive file.

• Specify the name of the archive file to be created.

• To compress the backup, use the '-z' option for gzip compression or '-j' option for bzip2 compression.

• To extract files from a tar back...read more

scp is a command-line tool used for securely transferring files between a local and remote Linux system.

• scp stands for secure copy.

• It uses SSH protocol for secure file transfer.

• It can be used to copy files between local and remote systems, or between two remote systems.

• Syntax: scp [options] [source] [destination]

• Example: scp file.txt user@remote:/path/to/destination

To disk scan, use tools like fsck or badblocks. To create LVM, use pvcreate, vgcreate, and lvcreate commands.

• To disk scan, use fsck command to check and repair file system errors.

• To scan for bad blocks on a disk, use badblocks command.

• To create LVM, first initialize physical volumes (pvcreate), then create volume groups (vgcreate), and finally create logical volumes (lvcreate).

• Example: fsck /dev/sda1

• Example: badblocks /dev/sdb

• Example: pvcreate /dev/sdc

• Example: vgcreate myvg /...read more

Bonding in Linux is a technique to combine multiple network interfaces into a single virtual interface for increased bandwidth and fault tolerance.

• Install the bonding driver module

• Configure the bonding interface in the network configuration file

• Specify the bonding mode and options

• Assign the physical interfaces to the bonding interface

• Restart the network service to apply the changes

To run a cronjob for a process, use the crontab command to create a cron job entry.

• Use the crontab command to edit the cron table

• Specify the schedule using the cron syntax

• Specify the command or script to be executed

• Save and exit the cron table to schedule the cron job

Yes, I am familiar with scripting in bash and sh.

• I have experience writing scripts in bash and sh.

• I am comfortable with using variables, loops, conditionals, and functions in bash and sh scripts.

• I have used bash and sh scripts for automating tasks, managing system configurations, and troubleshooting.

• I am familiar with common commands and utilities in bash and sh, such as grep, sed, awk, and find.

• I have written scripts to automate system administration tasks like log rotation,...read more

Agile is iterative and flexible, while Waterfall is linear and rigid.

• Agile focuses on delivering working software in short iterations

• Waterfall follows a sequential approach with distinct phases

• Agile welcomes changes in requirements throughout the project

• Waterfall requires a detailed plan before starting the project

• Agile emphasizes collaboration and communication

• Waterfall emphasizes documentation and following the plan

• Agile is better suited for complex and uncertain projects

• Wa...read more

V11 and A360 migration involves upgrading to newer versions and transferring data to cloud-based platform.

• V11 migration involves upgrading from older versions of software to newer ones.

• A360 migration involves transferring data to cloud-based platform for better accessibility and collaboration.

• Issues faced during migration include data loss, compatibility issues, and downtime.

• Proper planning and testing can help mitigate these issues.

To create swap for a Linux server, use the 'mkswap' command to create a swap file or partition and then activate it using the 'swapon' command.

• Use 'dd' command to create a swap file with desired size: 'dd if=/dev/zero of=/path/to/swapfile bs=1G count=4'

• Set the correct permissions for the swap file: 'chmod 600 /path/to/swapfile'

• Create swap space on the file: 'mkswap /path/to/swapfile'

• Activate the swap space: 'swapon /path/to/swapfile'

• Make the swap space permanent by adding an ...read more

yum is a package manager that resolves dependencies and installs packages from repositories, while rpm is a low-level package manager that directly installs packages.

• yum is a high-level package manager that uses rpm as its underlying package management system.

• yum can automatically resolve dependencies and install packages from repositories, while rpm requires manual dependency resolution.

• yum can also update packages and manage repositories, while rpm only installs and removes...read more

UDP is a connectionless protocol that provides fast, but unreliable communication. TCP is a connection-oriented protocol that ensures reliable communication.

• UDP stands for User Datagram Protocol, while TCP stands for Transmission Control Protocol.

• UDP is faster than TCP because it does not establish a connection before sending data.

• UDP does not guarantee delivery of packets, while TCP ensures reliable delivery.

• TCP uses a three-way handshake to establish a connection between th...read more

Disc LVM partitioning allows for flexible management of storage space by creating logical volumes on physical disks.

• LVM stands for Logical Volume Manager.

• It allows for dynamic allocation and resizing of storage space.

• LVM partitions are created by combining physical volumes (disks) into volume groups, and then creating logical volumes within those groups.

• Logical volumes can be resized, moved, or even span multiple physical disks.

• LVM provides features like snapshots, mirroring,...read more

The network layers for network are a hierarchical structure that defines the communication process between devices.

• The network layers are a way to organize and standardize the communication process in a network.

• There are several models that define the network layers, such as the OSI model and the TCP/IP model.

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

• The layers provide abstraction, allowing different technologies and protocols to work...read more

Answers to questions related to Java connection query, showing all tables in SQL, and basic query in Linux.

• Java connection query is used to establish a connection between Java application and database.

• To show all tables in SQL, use the command 'SHOW TABLES;' or 'SELECT table_name FROM information_schema.tables WHERE table_schema = 'database_name';'

• Basic query in Linux includes commands like 'ls' to list files, 'cd' to change directory, 'mkdir' to create a directory, 'rm' to r...read more

Different ceremonies conducted for a Scrum team include Sprint Planning, Daily Stand-up, Sprint Review, and Sprint Retrospective.

• Sprint Planning - planning for the upcoming sprint

• Daily Stand-up - daily check-in to discuss progress and plan for the day

• Sprint Review - review of the completed sprint and demonstration of the work done

• Sprint Retrospective - reflection on the previous sprint and identification of areas for improvement

I faced several issues while developing the code for RPA development.

• Compatibility issues with different systems and software

• Handling exceptions and error handling

• Managing large volumes of data

• Optimizing performance and efficiency

• Integration challenges with existing systems

• Ensuring security and data privacy

• Debugging and troubleshooting

• Version control and code management

A Java full stack developer is a professional who can work on both front-end and back-end technologies of a web application.

• A full stack developer is proficient in both client-side and server-side programming languages.

• They can work on databases, servers, systems engineering, and APIs.

• They are responsible for designing, developing, and maintaining web applications.

• Examples of technologies a Java full stack developer may work with include Java, Spring, Hibernate, AngularJS, Re...read more

Agile is an iterative approach to software development that emphasizes flexibility, collaboration, and customer satisfaction.

• Agile values individuals and interactions over processes and tools

• It emphasizes working software over comprehensive documentation

• It encourages customer collaboration and responding to change

• It involves iterative development and continuous improvement

• It promotes self-organizing and cross-functional teams

• Examples of Agile methodologies include Scrum, Kanb...read more

DevOps skills include automation, collaboration, communication, infrastructure as code, and continuous integration/continuous delivery (CI/CD).

• Automation: using tools to automate processes and tasks

• Collaboration: working closely with developers, operations, and other stakeholders

• Communication: effective communication skills to bridge gaps between teams

• Infrastructure as code: managing infrastructure through code

• Continuous integration/continuous delivery (CI/CD): automating the...read more

The question is testing your knowledge of Excel functions and features commonly used in accounting.

• Subtotal function is used to calculate subtotals in a list of data.

• Sum If function adds up values based on a specified condition.

• Pivot Table is a powerful tool for summarizing and analyzing data.

• Conditional Formatting allows you to highlight cells based on certain criteria.

• V-Lookup is used to search for a value in a table and return a corresponding value.

• Index-Match is an altern...read more

C is a general-purpose programming language known for its efficiency and low-level control.

• C was developed by Dennis Ritchie at Bell Labs in the 1970s.

• It is widely used for system programming, embedded systems, and developing operating systems.

• C is known for its simplicity, allowing direct memory manipulation and efficient code execution.

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

Agile is a project management methodology that emphasizes flexibility, collaboration, and customer satisfaction.

• Agile values individuals and interactions over processes and tools

• It emphasizes working software over comprehensive documentation

• Agile encourages responding to change over following a plan

• Scrum is a popular framework for implementing Agile

• Daily stand-up meetings, sprint planning, and retrospectives are common practices in Agile

Lambda is a function that allows you to write and use small, anonymous functions in programming languages.

• Lambda functions are often used in functional programming languages.

• They are anonymous, meaning they don't have a name.

• Lambdas can be used as arguments to higher-order functions.

• They are commonly used for tasks that require a short, one-time function.

• Lambda functions can be written in various programming languages, such as Python, JavaScript, and Java.

The 7-layer network model is a framework for designing and managing computer networks.

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

• Each layer has a specific function and communicates with adjacent layers.

• The model helps ensure interoperability between different network devices and software.

• Example protocols include Ethernet (Data Link), IP (Network), TCP (Transport), and HTTP (Application).

Scrum ceremonies are a set of events that occur during a sprint to facilitate communication and collaboration within the team.

• Sprint Planning

• Daily Scrum

• Sprint Review

• Sprint Retrospective

Java is a high-level programming language known for its platform independence and object-oriented approach.

• Java is widely used for developing desktop, web, and mobile applications.

• It is known for its write once, run anywhere (WORA) principle.

• Java programs are compiled into bytecode and executed on a Java Virtual Machine (JVM).

• It supports multithreading, exception handling, and automatic memory management.

• Popular frameworks and libraries in Java include Spring, Hibernate, and ...read more

My strengths include strong communication skills, adaptability, and attention to detail.

• Strong communication skills: I am able to effectively communicate with individuals at all levels of an organization, which allows me to build strong relationships with candidates and hiring managers.

• Adaptability: I am able to quickly adapt to changing situations and priorities, which is essential in the fast-paced world of recruiting.

• Attention to detail: I am meticulous in my work and pay ...read more

I have worked with a variety of requirements in my previous roles as a Senior Recruiter.

• Developed job descriptions and requirements for various positions

• Conducted interviews to assess candidate qualifications and fit

• Collaborated with hiring managers to understand their specific requirements

• Utilized applicant tracking systems to manage candidate pipelines

• Stayed up-to-date on industry trends and best practices in recruitment