What does DHCP stand for, and what is its role?
Dynamic Host Configuration Protocol – automatically assigns IP addresses to devices on a network.
What does HTTP stand for, and what is it used for?
hyperText Transfer Protocol – used for transferring web pages on the Internet.
What’s the difference between HTTP and HTTPS?
HTTPS (HyperText Transfer Protocol Secure) adds encryption using SSL/TLS for secure communication.
What does FTP stand for, and what’s it used for?
File Transfer Protocol – used for transferring files between computers over a network.
What does SMTP stand for, and what does it do?
Simple Mail Transfer Protocol – sends outgoing emails from a client to a mail server.
What is POP3, and what’s its main function?
Post Office Protocol v3 – downloads emails from a mail server to a client (removes them from the server).
What is IMAP, and how is it different from POP3?
Internet Message Access Protocol – allows reading and managing emails directly on the server (keeps
What does DNS stand for, and what does it do?
Domain Name System – translates domain names (like openai.com) into IP addresses.
What does NTP stand for?
Network Time Protocol – synchronizes clocks of computers on a network.
What does SSH stand for, and what’s it used for?
Secure Shell – provides secure remote command-line access to servers and devices.
What is Telnet, and why isn’t it used much anymore?
elecommunication Network Protocol – used for remote access but sends data in plain text (insecure).
What does TCP stand for, and what’s its main feature?
Transmission Control Protocol – provides reliable, ordered, and error-checked delivery of data.
What does UDP stand for, and what’s it used for?
User Datagram Protocol – faster, connectionless transport used for streaming and gaming (no guarantee of delivery).
What does SNMP stand for, and what’s its purpose?
Simple Network Management Protocol – monitors and manages network devices like routers and switches.
What does ICMP stand for, and what’s it used for?
Internet Control Message Protocol – sends diagnostic and error messages (used by ping and traceroute).
What does ARP stand for, and what does it do?
Address Resolution Protocol – maps IP addresses to physical MAC addresses in a local network.
What does RIP stand for, and how does it work?
Routing Information Protocol – uses hop count to determine the best path between networks (distance-vector).
What does OSPF stand for, and how is it different from RIP?
Open Shortest Path First – uses link-state information to calculate the fastest path through a network.
