COMPUTER NETWORKS MIDTERM EXAM QUESTIONS AND ANSWERS

COMPUTER NETWORKS MIDTERM
EXAM QUESTIONS AND ANSWERS
Routing - Answer-determines source destination route taken by packets

Forwarding - Answer-move packets from routers input to app output

DoS - Answer-Denial of service
attachers make resources unavailable to legitimate traffic by overwhelming resources
with bogus traffic

Packet sniffing - Answer-- broadcast media
- promiscuous network interference reads/records all packets passing by

API - Answer-Application programming interface

Socket - Answer-interface between app and transport layer

TCP - Answer-Transmission Control Protocol
- connection oriented
- reliable data transfer
- TCP congestion control

UDP - Answer-User Datagram Protocol
- connectionless
- unreliable data transfer
- no congestion control

4 Dimensions of transport protocol - Answer-1. reliable data transfer
2. throughput
3. timing
4. security

Application layer protocols - Answer-define how app's process pass messages

HTTP - Answer-Hyppertext Transfer Protocol
Web page -> consists of objects
Objects -> file
URL a. hostname of objects server b. object path name
**stateless

RTT - Answer-round trip time
time it takes for a small packet to travel from client to server and back to client