CH3-Netwk Topologies/Technologies

Question 1

How data travels from one device to another

Answer 1

Logical topology - common are switched, bus, ring

Question 2

How an arrangement of cables connect one device to another

Answer 2

Physical topology - common are star, bus, ring, point-to-point, mesh

Question 3

Connects every device to every other device

Answer 3

Mesh Topology - provides multiple pathways incase of failure

Question 4

Cabling a direct connection between 2 devices for a wireless bridge in WAN’s

Answer 4

Point-to-point topology -

Question 5

Can occur when 2 devices on the same medium transmit simultaneously

Answer 5

Collision - when CSMA/CD media access method is used

Question 6

Access method used by WiFi

Answer 6

CSMA/CA (Carrier sense multiple access)/(collision avoidance) - media access method where an acknowledgement is required for every packet sent,

Question 7

Devices on a network must listen first before transmitting and retransmit at a random time later

Answer 7

CSMA/CD (Carrier sense multiple access)/collision detection) - all devices wait for a random time before resending

Question 8

Set of rules governing how and when the network medium can be accessed for transmission

Answer 8

Media access method - ensures the transmissions are sent/received in an orderly fashion and everyone gets to transmit.

Question 9

Uses an analog signal to send multiple signals simultaneously

Answer 9

Broadband - each signal has a frequency and is a channel allowing multiples on a single wire

Question 10

Sends a digital signal using the entire bandwidth using each bit represented as a pulse

Answer 10

baseband - signals sent at a fixed frequency