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Geepas Interview Questions and Answers
Q1. what is yum ? whay we are using yum in linux ?
yum is a package manager for Linux that automates software installation, updates, and removal.
yum stands for Yellowdog Updater Modified
It is used to manage packages and dependencies in Red Hat-based Linux distributions
It can be used to install, update, and remove software packages
It automatically resolves dependencies and downloads necessary packages
Examples of yum commands include 'yum install', 'yum update', and 'yum remove'
Q2. what is use of Apache server ?
Apache server is a web server software used to serve web pages and applications.
Apache server is open-source software
It is used to host websites and web applications
It supports multiple programming languages like PHP, Python, and Perl
It can be configured to handle SSL/TLS encryption for secure connections
Apache server is highly customizable and extensible with modules
Examples of websites using Apache server include Airbnb, Apple, and IBM
Q3. what is DHCP ?
DHCP stands for Dynamic Host Configuration Protocol. It is a network protocol that automatically assigns IP addresses to devices.
DHCP is used to simplify network administration by automating the IP address assignment process.
It allows devices to obtain IP addresses and other network configuration information from a DHCP server.
DHCP leases IP addresses for a limited time period, after which the device must renew the lease or obtain a new IP address.
DHCP can also be used to ass...read more
Q4. what is NFS?
NFS stands for Network File System, a distributed file system protocol allowing a user on a client computer to access files over a network.
NFS allows a user to access files on a remote server as if they were on their local machine.
It is commonly used in Unix and Linux environments.
NFS uses RPC (Remote Procedure Call) to communicate between the client and server.
It supports both TCP and UDP protocols.
NFS can be used for sharing files between servers as well.
NFSv4 includes secu...read more
Q5. Abstract interface difference when to use
Abstract interface is used to define a set of methods without implementation. Difference lies in their usage.
Abstract interface is used to define a contract between two parties.
It is used to provide a common set of methods that can be implemented by different classes.
It is used to achieve abstraction and loose coupling.
Abstract classes can have implementation while interfaces cannot.
Abstract classes can have constructors while interfaces cannot.
Example: Comparable interface i...read more
Q6. do you know CPU scheduling?
CPU scheduling is the process of allocating CPU time to processes in a way that maximizes system performance.
CPU scheduling is an important part of operating systems.
It involves deciding which process gets to use the CPU at any given time.
There are several scheduling algorithms, such as First-Come-First-Serve, Round Robin, and Priority Scheduling.
The goal is to maximize system performance by minimizing wait times and maximizing throughput.
CPU scheduling is a complex topic tha...read more
Q7. What is Multithreading?
Multithreading is the ability of a CPU to execute multiple threads concurrently.
Multithreading allows for parallel processing and can improve performance.
Threads share the same memory space and can communicate with each other.
Examples include web servers handling multiple requests simultaneously and video games rendering graphics while processing user input.
Q8. What is oops pillars concept
OOPs pillars are the four fundamental concepts of Object-Oriented Programming: Encapsulation, Abstraction, Inheritance, and Polymorphism.
Encapsulation: Hiding the implementation details of an object and exposing only the necessary information.
Abstraction: Representing complex real-world scenarios in a simplified manner.
Inheritance: Creating new classes from existing ones, inheriting their properties and methods.
Polymorphism: The ability of objects to take on multiple forms or...read more
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