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Cellular wireless networks

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

Which of the following subsystem provides radio transmission between mobile station and MSC?

a)

BSS

b)

NSS

c)

OSS

d)

BSC

2.

The process of transferring a mobile station from one base station to another is

a)

Mobile Switching

b)

Roaming

c)

Hand off

d)

Forward channel

3.

MSC Consists of

a)

HLR

b)

VLR

c)

SIM

d)

EIR

4.

The shape of the cellular region for maximum radio coverage is

a)

Circular

b)

Square

c)

Oval

d)

Hexagon

5.

The advantage of using frequency reuse is

a)

Increased capacity

b)

Limited spectrum is required

c)

Same spectrum may be allocated to other network

d)

All of the above

6.

Cable television is an example of

a)

TDMA

b)

FDMA

c)

CDMA

d)

SDMA

7.

Soft handoff is

a)

Break before make

b)

Make before make

c)

Both A and B

d)

None of these

8.

Hexagon shape is used for radio coverage for a cell because


.

a)

It uses the maximum area for coverage

b)

Fewer number of cells are required

c)

It approximates circular radiation pattern

d)

All of the above

9.

GSM can best be called a system for

a)

cordless telephony

b)

cellular telephony

10.

TDMA systems transmit data in a buffer and burst method. Thus, the transmission for any user is not continuous.

a)

TRUE

b)

FALSE

11.

TDMA stands for:

a)

Time Domain Multiple Access

b)

Time-Division Multiple Access

c)

Tone Division Multiple Access

d)

none of the above

12.

CDMA stands for:

a)

Code-Division Multiple Access

b)

Carrier Division Multiple Access

c)

Compact Digital Multiplex Arrangement

d)

none of the above

13.

What are the three main parts of a GSM Architecture or Structure?

a)

Mobile Station

b)

BSS - Base Station Subsystem

c)

NSS - Network and Switching Subsystem

d)

All the above

14.

What are the main parts of a Mobile Station in a GSM Network?

a)

MT - Mobile Terminal

b)

SIM - Subscriber Identity Module

c)

Both A and B

d)

None

15.

What are the main parts of a BSS (Base Station Subsystem) in a GSM network?

a)

BTS - Base Transceiver Station

b)

BSC - Base Station Controller

c)

A and B

d)

None

16.

What are the main parts of a NSS (Network and Switching Subsystem) of a GSM Architecture?

a)

MSC - Mobile Switching Center

b)

HLR & AuC

c)

VLR, EIR

d)

All the above

17.

A BTS is also called _____ by general public?

a)

Mobile tower

b)

Exchange

c)

Charging Point

d)

None

18.

Each Mobile Terminal is identified by a unique ______ number?

a)

IMEI

b)

SIM

c)

IMSI

d)

None

19.

What is the name of a database used mainly that stores information of a subscriber along with eligible services under roaming or another MSC area?

a)

HLR

b)

VLR

c)

EIR

d)

AuC

20.

In a GSM architecture, which system provides Authentication and Encryption services?

a)

HLR

b)

VLR

c)

EIR

d)

AUC

21.

In a GSM architecture, which system stores the IMEI numbers of all working mobile phones under the network?

a)

HLR

b)

VLR

c)

EIR

d)

AUC

22.

when two nodes that are outside each other's range performs simultaneous transmission to a node that is within the range of each of them resulting in a collision. That means the data from both parties A and C will be lost during the collision.know as

a)

Hidden terminal

b)

Exposed terminal

c)

Both a and b

d)

None of the above

23.

Transmission from MS to Base station known as----------

(a)  

24.

The RTS and CTS frames in CSMA/CA ____ solve the hidden station problem

a)

can

b)

cannot

25.

SDMA expansion

(a)