Computer Science - Networking

1.
How many digits of the DNIC (Data Network Identification Code) identify the country?
first three
first four
first five
first six
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
A station in a network forwards incoming packets by placing them on its shortest output queue. What routing algorithm is being used?
hot potato routing
flooding
static routing
delta routing
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

3.
The probability that a single bit will be in error on a typical public telephone line using 4800 bps modem is 10 to the power -3. If no error detection mechanism is used, the residual error rate for a communication line using 9-bit frames is approximately equal to
0.003
0.009
0.991
0.999
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

4.
Frames from one LAN can be transmitted to another LAN via the device
Router
Bridge
Repeater
Modem
Answer: Option
Explanation:
No answer description is available. Let's discuss.

5.
Which of the following condition is used to transmit two packets over a medium at the same time?
Contention
Collision
Synchronous
Asynchronous
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.