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Posts Tagged ‘VU. CS601- Data. Communication .(Session – 1). MIDTERM. EXAMINATION .Spring. 2009’

VU CS601- Data Communication (Session – 1) MIDTERM EXAMINATION Spring 2009

.

MIDTERM EXAMINATION

Spring 2009

CS601- Data Communication (Session – 1)

Question No: 1 ( Marks: 1 ) – Please choose one

In

RS 422 Balanced mode two lines carry ________ signals which are not identical to each other.

► same

► different

► digital

► analog

Question No: 2 ( Marks: 1 ) – Please choose one

The

__________ generates the data and passes it along with any control information to a

___________.

► DTE; DCE

► DCE; DTE

► DCE; node

► DTE; application

Question No: 3 ( Marks: 1 ) – Please choose one

In

_____________ transmission, a start bit and a stop bit frame a character byte.

Asynchronous serial

► Synchronous serial

► Parallel

► Asynchronous & Synchronous serial

Question No: 4 ( Marks: 1 ) – Please choose one

In

_____________ transmission, bits are transmitted simultaneously, each across its own wire.

► Asynchronous serial

► Synchronous serial

► Parallel

► Asynchronous & Synchronous serial

Question No: 5 ( Marks: 1 ) – Please choose one

Asynchronous transmission is ___________

► slow

► costly

► non-effective

► fast

.

Question No: 6 ( Marks: 1 ) – Please choose one

In

____________ transmission the timing of the signal is unimportant.

Asynchronous

►Synchronous

►Polar

►Bi-polar

Question No: 7 ( Marks: 1 ) – Please choose one

In

8QAM each signal shift or one baud represents ______.

4 bits

► 2 bits

► 5 bits

► 3 bits

Question No: 8 ( Marks: 1 ) – Please choose one

PCM is the first process of PAM.

True

► False

Question No: 9 ( Marks: 1 ) – Please choose one

Bi

phase encoding is a type of bipolar encoding in which we use two voltage levels.

► True

► False

Question No: 10 ( Marks: 1 ) – Please choose one

The

amplitude of a digital signal depends upon the________ to represent a bit.

► phase

► voltage

► wavelength

Question No: 11 ( Marks: 1 ) – Please choose one

Time domain plot show changes in signal phase with respect to time.

► True

► False

Question No: 12 ( Marks: 1 ) – Please choose one

OSI

model was developed prior to TCP/IP model.

► True

► False

.

Question No: 13 ( Marks: 1 ) – Please choose one

The

_________ layer is the layer closest to the transmission medium.

► physical

► data link

► network

► transport

Question No: 14 ( Marks: 1 ) – Please choose one

Data

chunk at data link layer is called________

►frame

►packet

►datagram

Question No: 15 ( Marks: 1 ) – Please choose one

The

internet model consists of _________ layers.

► three

► two

► five

► seven

Question No: 16 ( Marks: 1 ) – Please choose one

__________representation of links that connect nodes is called as physical topology.

geometrical

►logical

►physical

Question No: 17 ( Marks: 1 ) – Please choose one

_______ is a multipoint topology.

► Ring

► Mesh

► Tree

Bus

Question No: 18 ( Marks: 1 ) – Please choose one

In

mesh topology, if there are five nodes then there will be _______ links.

► 5

► 10

.

► 15

► 20

Question No: 19 ( Marks: 1 ) – Please choose one

Non

proprietary standard is also termed as de facto standard.

► True

► False

Question No: 20 ( Marks: 1 ) – Please choose one

Effective network mean that the network has fast delivery, timeliness and

► high bandwidth

► duplex transmission

► accurate transmission

► low bandwidth

Question No: 21 ( Marks: 2 )

What is purpose of distributed processing?

Question No: 22 ( Marks: 3 )

What is HDB3.

Question No: 23 ( Marks: 5 )

Differentiates between the following terms. [10 marks]

(a) Syntax and Semantics of protocol.

(b) Network management and exchange management.

(c) Monolithic and structured.

Question No: 24 ( Marks: 10 )

Differentiate between the following terms.

a) Frequency spectrum and bandwidth.

(b) Bandwidth and throughput.

(c) Bit interval and bit rate.

arC�!bt��M�Ppt;line-height: normal;mso-layout-grid-align:none;text-autospace:none’>o

 

parallel to each other

orthogonal (perpendicular) to each other.

intersect each other

equal to each other

Question No. 21

Marks : 04

What is meant by Trivial Accept?

Question No. 22

The Boundary Fill and Flood Fill algorithms:

Marks : 0

o

o

o

o

Must use 4-connected approach

Must use 8-connected approach

May use 4-connected or 8-connected approach

Must not use recursive approach

VU CS601- Data Communication (Session – 1) MIDTERM EXAMINATION Spring 2009

.

MIDTERM EXAMINATION

Spring 2009

CS601- Data Communication (Session – 1)

Question No: 1 ( Marks: 1 ) – Please choose one

In

RS 422 Balanced mode two lines carry ________ signals which are not identical to each other.

► same

► different

► digital

► analog

Question No: 2 ( Marks: 1 ) – Please choose one

The

__________ generates the data and passes it along with any control information to a

___________.

► DTE; DCE

► DCE; DTE

► DCE; node

► DTE; application

Question No: 3 ( Marks: 1 ) – Please choose one

In

_____________ transmission, a start bit and a stop bit frame a character byte.

Asynchronous serial

► Synchronous serial

► Parallel

► Asynchronous & Synchronous serial

Question No: 4 ( Marks: 1 ) – Please choose one

In

_____________ transmission, bits are transmitted simultaneously, each across its own wire.

► Asynchronous serial

► Synchronous serial

► Parallel

► Asynchronous & Synchronous serial

Question No: 5 ( Marks: 1 ) – Please choose one

Asynchronous transmission is ___________

► slow

► costly

► non-effective

► fast

.

Question No: 6 ( Marks: 1 ) – Please choose one

In

____________ transmission the timing of the signal is unimportant.

Asynchronous

►Synchronous

►Polar

►Bi-polar

Question No: 7 ( Marks: 1 ) – Please choose one

In

8QAM each signal shift or one baud represents ______.

4 bits

► 2 bits

► 5 bits

► 3 bits

Question No: 8 ( Marks: 1 ) – Please choose one

PCM is the first process of PAM.

True

► False

Question No: 9 ( Marks: 1 ) – Please choose one

Bi

phase encoding is a type of bipolar encoding in which we use two voltage levels.

► True

► False

Question No: 10 ( Marks: 1 ) – Please choose one

The

amplitude of a digital signal depends upon the________ to represent a bit.

► phase

► voltage

► wavelength

Question No: 11 ( Marks: 1 ) – Please choose one

Time domain plot show changes in signal phase with respect to time.

► True

► False

Question No: 12 ( Marks: 1 ) – Please choose one

OSI

model was developed prior to TCP/IP model.

► True

► False

.

Question No: 13 ( Marks: 1 ) – Please choose one

The

_________ layer is the layer closest to the transmission medium.

► physical

► data link

► network

► transport

Question No: 14 ( Marks: 1 ) – Please choose one

Data

chunk at data link layer is called________

►frame

►packet

►datagram

Question No: 15 ( Marks: 1 ) – Please choose one

The

internet model consists of _________ layers.

► three

► two

► five

► seven

Question No: 16 ( Marks: 1 ) – Please choose one

__________representation of links that connect nodes is called as physical topology.

geometrical

►logical

►physical

Question No: 17 ( Marks: 1 ) – Please choose one

_______ is a multipoint topology.

► Ring

► Mesh

► Tree

Bus

Question No: 18 ( Marks: 1 ) – Please choose one

In

mesh topology, if there are five nodes then there will be _______ links.

► 5

► 10

.

► 15

► 20

Question No: 19 ( Marks: 1 ) – Please choose one

Non

proprietary standard is also termed as de facto standard.

► True

► False

Question No: 20 ( Marks: 1 ) – Please choose one

Effective network mean that the network has fast delivery, timeliness and

► high bandwidth

► duplex transmission

► accurate transmission

► low bandwidth

Question No: 21 ( Marks: 2 )

What is purpose of distributed processing?

Question No: 22 ( Marks: 3 )

What is HDB3.

Question No: 23 ( Marks: 5 )

Differentiates between the following terms. [10 marks]

(a) Syntax and Semantics of protocol.

(b) Network management and exchange management.

(c) Monolithic and structured.

Question No: 24 ( Marks: 10 )

Differentiate between the following terms.

a) Frequency spectrum and bandwidth.

(b) Bandwidth and throughput.

(c) Bit interval and bit rate.

arC�!bt��M�Ppt;line-height: normal;mso-layout-grid-align:none;text-autospace:none’>o

 

parallel to each other

orthogonal (perpendicular) to each other.

intersect each other

equal to each other

Question No. 21

Marks : 04

What is meant by Trivial Accept?

Question No. 22

The Boundary Fill and Flood Fill algorithms:

Marks : 0

o

o

o

o

Must use 4-connected approach

Must use 8-connected approach

May use 4-connected or 8-connected approach

Must not use recursive approach

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