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WCN

Total questions: 40

Worksheet time: 1hrs 20mins

Name
Class
Date
1.

WPAN stands for

a)

wide personal adhoc network

b)

wide personal area network

c)

wide personal advanced network

d)

wide picular adhoc network

2.

What is the data rate used for bluetooth

a)

1 MBPs

b)

2 MBPs

c)

3 MBPs

d)

4 MBPs

3.

Which of the following filter is used for long distance and high power transmission

a)

WWAN

b)

WPAN

c)

WLAN

d)

WDAN

4.

AMPS was initially designed for

a)

video application

b)

voice application

c)

both voice and video application

d)

multiple application

5.

GSM1900 is basically

a)

3G system

b)

4G system

c)

2G system

d)

1G system

6.

2G system with TDMA is

a)

GSM900

b)

GSM1800

c)

GSM1900

d)

GSM1200

7.

In shadow effect which distributation is used

a)

Rayleigh distributation

b)

Rician distributation

c)

long normal distributation

d)

Polynomial distributation

8.

Multiplexing refers to

a)

carry multiple signal on a single medium

b)

carry single signal on a single medium

c)

carry multiple signal on multiple medium

d)

carry single signal on a multiple medium

9.

The advantage of TDM technique is

a)

improved bit rate

b)

improved bandwidth

c)

decreased bit rate

d)

improved noise

10.

Which of the following is the recent multiplexing scheme

a)

TDM

b)

FDM

c)

CDM

d)

SDM

11.

Which of the following is conflict free protocol

a)

ALOHA

b)

CSMA

c)

BTMA

d)

CDMA

12.

What is CSMA

a)

carrier sense multiple Access

b)

carrier sense multiple Approach

c)

carrier sense multiplex Access

d)

code sense multiple Access

13.

IEEE 802 11a standard operates at

a)

3 GHz

b)

4 GHz

c)

5 GHz

d)

6 GHz

14.

In Wi Fi system BSS refers to

a)

a cell

b)

a region

c)

cluster of cells

d)

a geographic area

15.

What is PLCP in Wi Fi technology

a)

physical layer control protocol

b)

physical layer convergence protocol

c)

physical layer convergence prototype

d)

physical layer convergence process

16.

Scattered of waves in all directions will leads to.

a)

More Channels

b)

Gaussian noise

c)

Flicker noise

d)

Additional radio energy

17.

A signal is transmitted to long distance in a medium is possible by

a)

Transmission

b)

Modulation

c)

Encrypting

d)

Multiplexing

18.

The interference between the cells using the same frequency bands is called as

a)

Intra cell interference

b)

ISI

c)

co-channel interference

d)

Inter channel interference

19.

When transmitter and receiver moves towards each other the magnitude of Doppler frequency shift is

a)

Positive

b)

Negative

c)

Zero

d)

Infinity

20.

The interference between signals from co-channel cells is referred as

a)

ACI

b)

CCI

c)

API

d)

CPI

21.

When the coherence bandwidth is smaller than the bandwidth of the signal Mention the type of fading that occurs

a)

Frequency selective

b)

Fast fading

c)

Time selective

d)

Rayleigh fading

22.

When a mobile enters to a new cell while conversation is in progress then the call is not dropped out due to

a)

handon strategy

b)

handfall strategy

c)

handoff strategy

d)

handrise strategy

23.

CDMA standard also know as

a)

IS 90

b)

IS 95

c)

IS 98

d)

IS 96

24.

In CDMA standard

a)

data rate is fixed

b)

data rate varies

c)

cell capacity is fixed

d)

Cell capacity varies

25.

Which of the following channel acquires timing for froward CDMA channel

a)

driven channel

b)

paging channel

c)

pilot channel

d)

synchronization channel

26.

What is the typical data rate used for HSDPA

a)

5 Mbps

b)

10 Mbps

c)

12 Mbps

d)

20 Mbps

27.

Which modulation scheme is used in HSDPA

a)

PSK

b)

DPSK

c)

BPSK

d)

QPSK

28.

MIMO OFDM system uses

a)

multiple antenna

b)

double antenna

c)

single antenna

d)

no antenna

29.

OFDM is used to

a)

increase ISI

b)

double ISI

c)

reduce ISI

d)

has no effect on ISI

30.

Channel data rates are very high

a)

WCDMA

b)

TDMA

c)

CDMA

d)

FDMA

31.

In cellular concept the frequency is reused

a)

In cells inside cluster

b)

In clusters

c)

between users

d)

None of the above

32.

Bluetooth is also called as

a)

wireless network

b)

PICONET

c)

WAN

d)

LAN

33.

What does SGSN stands for

a)

Serving GPRS Support Node

b)

Supporting GGSN Support Node

c)

Supporting GPRS Support Node

d)

Supporting Gateway Support Node

34.

What are the average download speeds for our 4G LTE network

a)

1 to 2 Mbps

b)

1 to 12 Mbps

c)

2 to 5 Mbps

d)

5 to 12 Mbps

35.

What does the DC subcarrier indicate

a)

Identity of the cell

b)

Antenna configuration

c)

Center of OFDM channel

d)

Format of data channel

36.

Identify the protocol which uses bursts of data for transmission

a)

HTTP protocol

b)

SMTP Protocol

c)

Packet Radio

d)

TCP or IP

37.

which code division is standard for 3G Cellular network

a)

UMTS

b)

ETSI

c)

TDMA

d)

None of the above

38.

The inter BSC handoff is also known as

a)

intra MSC handoff

b)

intra BSC handoff

c)

inter MSC handoff

d)

Inter cell

39.

What is VoIP

a)

voice over IP

b)

voice on IP

c)

voice off IP

d)

voice above IP

40.

What is CoA in mobile IP technology

a)

call off address

b)

care of address

c)

cancellation of address

d)

care of a node

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