Computer Network Test

The system must deliver data to correct destination so that Data received by the

indented user only. How does this ensure the effectiveness of data

communication?

• Data is communicated in timely manner

• Data suffers from jitter issue

• Data is delivered correctly

• Data is exchanged in accurate manner

Checking an unauthorized user in a network is a ...............issue

Assume eight devices are arranged in a mesh topology. How many ports are

needed for each device? ___________

The peer to peer interaction between the same layers of two devices are

possible at

• all seven layers

• Layer-1, Layer-3, Layer-4 and Layer-5

• Layer-1, Layer-2, Layer-3 and Layer-4

• Layer-4, Layer-5, Layer-6 and Layer-7

Choose the best matching between Group 1 and Group 2.

Group-1:

P. Data link

Q. Network layer

R. Transport layer

Group-2

1. Ensures reliable transport of data

over a physical point-to-point link

2. Encoder/decodes data for physical

transmission

3. Allows end-to-end communication

between two processes

4. Routes data from one network

node to the next

• P-1, Q-4, R-3

• P-2, Q-4, R-1

• P-2, Q-3, R-1

• P-1, Q-3, R-2

A digital signal with 16 levels needs to transmit on a noiseless channel. Assuming the channel

bandwidth is 500 KHz. Find the maximum data rate of the signal. ______________

Assume the bandwidth of a noisy channel as 10 MHz and its SNRdb as 72. Compute the channel capacity ______

Find out the time period of the given analog signal (in seconds)?

Answer explanation

0.125

In a broad sense, a railway track is an example of

• Simplex

• Half Duplex

• Half Simplex

• Full Duplex

The exchange of data between two devices via some form of transmission

medium is known as

• Data Transmission

• Computer Networks

• Data Communication

• Telecommunication