CS601 Quiz 4

Q1. The _________ is the number of signal elements sent per unit time.

1. Bit rate
2. Period
3. Signal rate
4. Data rate

Correct answer: Signal rate

Q2. The message 110 sent by a source is received by a destination as 111. This is ______type of error.

1. Burst
2. Multi-Bit
3. Single-Bit
4. Byte

Correct answer: Single-Bit

Q3. ______________are used to exchange session management and control information between connected devices.

1. N-frames
2. I-frames
3. S-frames
4. U-frames

Correct answer: S-frames

Q4. __________ is the process of converting digital data to digital signals.

1. Line coding
2. CSMA/CD
3. CSMA/CA
4. Segmentation

Correct answer: Line coding

Q5. _______ is the purpose of the Cyclic Redundancy Check (CRC) method

1. Counting the number of bits in a frame
2. Regulating data flow
3. Detecting and correcting errors
4. Adding redundancy for encryption

Correct answer: Detecting and correcting errors

Q6. The ______________ protocol uses both flow and error control.

1. HDLC
2. Stop-and-Wait
3. ICMP
4. TCP/IP

Correct answer: HDLC

Q7. The term "single-bit error" refer to _______

1. interfering with the flow control process
2. changing 1 bit of a data unit
3. changing multiple bits in a data unit
4. changing the shape of the signal

Correct answer: changing 1 bit of a data unit

Q8. Payload field of the PPP frame is of variable size and it can carry maximum data up to ____________.

1. 10 bytes
2. 500 bytes
3. 1500 bytes
4. 100 bytes

Correct answer: 1500 bytes

Q9. If the Hamming distance between sent and received code word is ______, then it shows that received data is corrupted.

1. ≠ 0
2. =1
3. = 0
4. ≠ 1

Correct answer: ≠ 0

Q10. The purpose of block coding is _______

1. removing errors from transmitted data
2. creating relationships between bits
3. adding redundancy to data in fixed-size blocks
4. regulating data flow

Correct answer: adding redundancy to data in fixed-size blocks