Protocols and theoretical concepts

Question 1

Term: TCP (Transmission Control Protocol)

Answer 1

Definition: Reliable, connection-oriented protocol that ensures ordered and error-checked delivery of data

Question 2

Term: UDP (User Datagram Protocol)

Answer 2

Definition: Unreliable, connectionless protocol that is faster but does not guarantee delivery, ordering, or error checking

Question 3

Comparison: TCP vs UDP

Answer 3

TCP: Reliable, ordered, error-checked, connection-oriented
UDP: Faster, no guarantee of delivery, unordered, connectionless

Question 4

Term: DHCP (Dynamic Host Configuration Protocol)

Answer 4

Role: Automatically assigns IP addresses, subnet masks, and other network settings to devices on a network

Question 5

Concept: DHCP Timeout Behavior

Answer 5

Definition: If a client does not receive a response from the DHCP server within a certain time, it retries or may assign itself an APIPA (169.254.x.x) address

Question 6

Term: NAT (Network Address Translation)

Answer 6

Definition: Allows multiple devices on a private network to share a single public IP address; used in routers to route internet traffic.

Question 7

Term: BGP (Border Gateway Protocol)

Answer 7

Definition: A routing protocol used to exchange routing information between autonomous systems (AS), typically between ISPs