CS601 Final Term Past Papers Mega File

CS601

Asynchronous TDM is efficient only when the size of the time slot is kept relatively _______________

1. Large (Page 158)
2. Small
3. Medium
4. None of the given
5. Twisted-pair (Page 160)
6. Coaxial
7. Fiber-optic
8. None of the given

Data from a computer are ____________; the local loop handles _________ signals.

1. Analog; analog
2. Analog; digital
3. Digital; digital
4. Digital; analog

Correct answer: Digital; analog

Which error detection method uses ones complement arithmetic?

1. Simple parity check
2. Two-dimensional parity check
3. CRC

CS601

1. Checksum (Page 179)

Flow control is needed to prevent ____________

1. Bit errors
2. Overflow of the sender buffer
3. Overflow of the receiver buffer (Page 46)
4. Collision between sender and receiver

Correct answer: Overflow of the receiver buffer (Page 46)

____________ coordinates the amount of data that can be sent before receiving acknowledgment

1. flow control (Page 186)
2. error control
3. data control

Correct answer: flow control (Page 186)

Error control is both error _________ and error ___________

1. detection; correction (Page 186)
2. detection; deletion
3. detection; avoidance
4. detection; forwarding

Correct answer: detection; correction (Page 186)

Addressing is not needed in _______________ configuration.

1. Point to Point (Page 190)
2. Multipoint
3. Point to point and multipoint

Correct answer: Point to Point (Page 190)

In a Go-Back-N ARQ, if the window size is 63, what is the range of sequence number?

CS601

1. 0 to 63
2. 0 to 64
3. 1 to 63
4. 1 to 64

Correct answer: 0 to 63

A timer is set when ___________ is sent out.

1. A data frame
2. An ACK (Page 197)
3. A NAK

Correct answer: An ACK (Page 197)

Sliding window requires that data frames be transmitted _______________

1. Sequentially (Page 199)
2. Frequently
3. Synchronously
4. Asynchronously

Correct answer: Sequentially (Page 199)

In Y-MODEM Multiple files can be sent simultaneously

1. True (Page 205)
2. False

Correct answer: True (Page 205)

BLAST stands for :

1. Blocked asynchronous transmission (Page 205)
2. Blocked synchronous transmission
3. Barrel asynchronous transmission
4. Below asynchronous transmission

Correct answer: Blocked asynchronous transmission (Page 205)

HDLC is an acronym for ______________.