1. What is DNS? A) DNS (Domain Name System) is a distributed naming system that translates human-readable domain names (e.g., example.com) into IP addresses (e.g., 93.184.216.34). 2. What are the [ … ]

1. What is MySQL? A) MySQL is an open-source Relational Database Management System (RDBMS) that uses SQL (Structured Query Language) for storing, retrieving, and managing data. 2. What is the [ … ]

1. What is Apache HTTP Server? A) Apache HTTP Server (commonly called Apache) is an open-source web server software that serves web content over HTTP/HTTPS. It’s one of the most [ … ]

1. What is timedatectl? A) timedatectl is a command-line utility in systemd-based Linux systems used to query and change system clock, time zone, and NTP (network time synchronization) settings. 2. [ … ]

1. What are the monitoring tools? A) top, htop, atop, sar 2. What is the difference between top and htop? A)  top: Default Linux command, shows real-time processes, CPU, memory [ … ]

1. What is NTP? A) NTP (Network Time Protocol) is a protocol used to synchronize the system clocks of computers over a network. It ensures accurate timekeeping across devices by [ … ]

1. What is Samba? A) Samba is an open-source implementation of the SMB/CIFS protocol that allows file and printer sharing between Linux/Unix and Windows systems. 2. Which ports does Samba [ … ]

1. What is NFS? A) NFS (Network File System) is a distributed file system protocol that allows a client to access files over a network as if they were on [ … ]

1. What is FTP? A) FTP (File Transfer Protocol) is a standard network protocol used to transfer files between a client and a server over TCP/IP. 2. Which port does [ … ]

1.What is a firewall and how does it work? A) A firewall is a network security device/software that monitors and controls incoming and outgoing traffic based on predefined rules.It acts [ … ]