Which of the following types of connections can use full duplex?
1. Hub to hub
2. Switch to switch
3. Host to host
4. Switch to hub
5. Switch to host
A. 1, 2 and 4
B. 3 and 4
C. 3 and 5
D. 2, 3 and 5
Answer: Option D
Solution(By Examveda Team)Hubs cannot run full-duplex Ethernet. Full duplex must be used on a point-to-point connection between two devices capable of running full duplex. Switches and hosts can run full duplex between each other, but a hub can never run full duplex.
A. 1 only
B. 1 and 3
C. 3 and 4
D. 5 only
E. All of the above
B. Crossover cable
C. Crossover with a CSU/DSU
D. Crossover with a router in between the two switches
How does a host on an Ethernet LAN know when to transmit after a collision has occurred?
1. In a CSMA/CD collision domain, multiple stations can successfully transmit data simultaneously.
2. In a CSMA/CD collision domain, stations must wait until the media is not in use before transmitting.
3. You can improve the CSMA/CD network by adding more hubs.
4. After a collision, the station that detected the collision has first priority to resend the lost data.
5. After a collision, all stations run a random backoff algorithm. When the backoff delay period has expired, all stations have equal priority to transmit data.
A. 1 and 3
B. 2 and 4
C. 1,3 and 4
D. 2 and 5
Which of the following are unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
1. Half-duplex Ethernet operates in a shared collision domain.
2. Half-duplex Ethernet operates in a private collision domain.
3. Half-duplex Ethernet has higher effective throughput.
4. Half-duplex Ethernet has lower effective throughput.
A. 2 only
B. 1,2 and 3
C. 1 and 4
D. 4 only