Computer Science - Networking

36.
Ethernet networks can be cabled in a number of topologies, depending on what works best in each environment. As more nodes are added, the efficiency of Ethernet decreases. Select the best answer as to why Ethernet becomes less efficient as size increases.
Network collisions occur
Repeaters cannot increase the signal strength sufficiently
Cable terminators do not reflect the signal properly
Cable terminators do not absorb the signal properly
"Line echo" occurs due to the impedance of the cable
Answer: Option
Explanation:
No answer description is available. Let's discuss.

37.
In a _____ topology, if there are n devices in a network, each device has n - 1 ports for cables.
ring
bus
star
mesh
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

38.
Typewriter terminals can print computer-generated data at a rate of
10 characters per second
120 characters per second
120 characters per minute
1200 characters per minute
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

39.
To avoid transmission errors, a check figure is calculated by the
transmitting computer
receiving computer
both (a) and (b)
Start and stop bit
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

40.
What is the first octet range for a class A IP address?
1 - 126
192 - 255
192 - 223
1 - 127
128 - 191
Answer: Option
Explanation:
No answer description is available. Let's discuss.