Telecommunications And Network Security Flashcards
0
Q
CSMA/CD
A
Listen to absence of carrier signal on wire and attempts to sent when wire free. If 2 do the same, and a collision happens and is detected, system will alert all other systems to stop sending and wait a random interval (collision timer = back off algorithm)
1
Q
CSMA
A
Carrier sense multiple access:
Ethernet protocol to define how nodes are to communicate, recover from errors and access the cable.
2 types: CSMA/CD and CSMA/CA
2
Q
CMSA/CA
A
Carrier sense multiple access with collision avoidance
System signals intend to send data before doing so to avoid collision
3
Q
DSL
A
Digital subscriber line - always on
4
Q
SONET
A
Synchronous optical network:
Standard for transmitting data over fiber optic
