CS601 Quiz 1

Q1. A digital signal is expressed through _______ values.

1. Discrete
2. Periodic
3. Digital
4. Analog

Correct answer: Discrete

Q2. In a bidirectional communication, each layer performs two _______ tasks in each direction.

1. Similar
2. Identical
3. Complimentary
4. Opposite

Correct answer: Opposite

Q3. In transmission impairments __________noise occurs from the random motion of electrons in a wire.

1. Cross talk
2. Impulse noise
3. Thermal noise
4. Induced noise

Correct answer: Thermal noise

Q4. A frequency is called ------, if the rate of change in sine wave is instantaneous.

1. Zero frequency
2. Frequency hertz
3. Infinite frequency
4. Bandwidth

Correct answer: Infinite frequency

Q5. Datagram (packet) travels across _____ in a network.

1. Modem
2. Hub
3. Switches
4. Routers

Correct answer: Routers

Q6. According to the Fourier analysis, frequencies obtained after decomposition of digital signals are __________.

1. Homogeneous
2. Discrete
3. Bit length
4. Continuous

Correct answer: Discrete

Q7. Mr. Asif while sitting in Lahore is talking with his friend in Dubai through Skype is an example of _________.

1. Wide Area Network
2. Metropolitan Area Network
3. Local Area Network
4. Home Based Network

Correct answer: Wide Area Network

Q8. _________ layer is responsible for creating datagrams.

1. Session
2. Network
3. Physical
4. Data Link

Correct answer: Network

Q9. Which communication mode allows data transmission in one direction only, without any feedback or response from the receiving device?

1. Half Duplex
2. Simplex
3. Bidirectional
4. Full Duplex

Correct answer: Simplex

Q10. If 16 bits are transmitted within a one-second interval, the bitrate for that signal is ________________.

1. 16
2. 64
3. 32
4. 8

Correct answer: 16