10+ eGlobal HR Solutions Interview Questions and Answers

To check running processes in Linux, use the 'ps' command.

• Open the terminal and type 'ps' followed by any options or arguments.

• Use 'ps aux' to display all running processes with detailed information.

• Use 'ps -ef' to display all running processes with full information.

• Use 'top' command to display real-time information about running processes.

• Use 'htop' command to display running processes in a more user-friendly way.

• Use 'pgrep' command to find the process ID of a running proces...read more

To kill a process in Linux, you can use the 'kill' command followed by the process ID (PID) or the 'pkill' command followed by the process name.

• Use the 'kill' command followed by the PID to terminate a specific process

• Use the 'pkill' command followed by the process name to kill all processes with that name

• You can send different signals to the process using the '-s' option with the 'kill' command

• To forcefully kill a process, use the '-9' option with the 'kill' command

To change ownership in Linux, use the chown command followed by the new owner and file/directory name.

• Use the chown command followed by the new owner and file/directory name

• To change ownership of a directory and its contents, use the -R option

• To change group ownership, use the chgrp command

File System in Linux is the way files are organized and stored on a Linux system.

• File System is responsible for managing files and directories on a Linux system

• It provides a hierarchical structure for organizing files and directories

• The root directory is denoted by / and all other directories are subdirectories of the root directory

• Different types of file systems are supported in Linux such as ext4, NTFS, FAT32, etc.

• Commands like ls, cd, mkdir, rmdir, etc. are used to interac...read more

To check IP in Linux, use the command 'ifconfig' or 'ip addr show'

• Open the terminal and type 'ifconfig' or 'ip addr show'

• Look for the IP address under the network interface section

• Alternatively, use the command 'hostname -I' to display the IP address only

SNMPWALK is a tool used to retrieve information from SNMP-enabled devices. There are three versions of SNMP: SNMPv1, SNMPv2c, and SNMPv3.

• SNMPWALK is a command-line tool used to retrieve information from SNMP-enabled devices.

• It works by sending a series of SNMP GETNEXT requests to the device, starting at the root of the MIB tree.

• SNMPv1 is the original version of SNMP and is the most widely supported. It uses community strings for authentication.

• SNMPv2c is an updated version of...read more

WMI stands for Windows Management Instrumentation, a set of tools used to manage and monitor Windows systems.

• WMI provides a standardized way for administrators to access and manage system information, configuration data, and performance statistics.

• It can be used to remotely manage and monitor Windows systems, as well as automate administrative tasks.

• WMI uses a query language called WQL (WMI Query Language) to retrieve information from the system.

• Examples of tasks that can be ...read more

Permissions in Linux determine the access level of users and processes to files and directories.

• There are three types of permissions: read, write, and execute.

• Permissions are set for three types of users: owner, group, and others.

• Permissions can be viewed and modified using the chmod command.

• Examples of permission settings: 755 (rwxr-xr-x) for directories, 644 (rw-r--r--) for files.

QA's main work is to ensure quality of software by testing and identifying bugs and errors.

• QA's main work is to test software and identify bugs and errors

• They ensure that the software meets the requirements and specifications

• Bugs are coding mistakes that cause unexpected behavior

• Errors are mistakes made by the user that cause the software to fail

• QA engineers use various testing techniques to identify and report bugs and errors

Design an ATM machine system using best principles

• Use a layered architecture with separate components for UI, business logic, and data access

• Implement security measures such as encryption for sensitive data

• Include error handling and logging mechanisms for tracking and resolving issues

• Design for scalability and performance to handle high volumes of transactions

• Consider user experience and accessibility in the design

Hash functions in Java are used to convert an input into a fixed-size string of bytes, typically for data retrieval and security purposes.

• Hash functions take an input (or 'key') and return a fixed-size string of bytes, known as the hash value.

• In Java, the hashCode() method is commonly used to generate hash codes for objects.

• Hash functions are used in data structures like HashMap to efficiently store and retrieve key-value pairs.

Hash function in Java is a function that converts an input (or 'key') into a unique numerical value, which is used to index data in hash tables.

• Hash functions are used to quickly retrieve data in hash tables by converting keys into unique numerical values.

• In Java, hash functions are commonly used in HashMap and HashSet to store and retrieve key-value pairs efficiently.

• Examples of hash functions in Java include hashCode() method in Object class and MessageDigest class for cryp...read more