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Wireless Network (NCO)

Description: WN
Number of Questions: 17
Created by:
Tags: WN Data Communication and Networks
Attempted 0/17 Correct 0 Score 0

The full form of DSL is

  1. Digital Session Link

  2. Digital Subscriber Link

  3. Data State Link

  4. Data Standard Link

  5. Digital Stainless Link


Correct Option: B
Explanation:

This is the correct option and DSL modems are used to connect computers having ethernet cables.

Which of the following was the first wireless Local Area Network?

  1. ARPANET

  2. ENIAC

  3. Alohanet

  4. EDVAC

  5. UNIVAC


Correct Option: C
Explanation:

This was the first wireless Local Area Network.

Which of the following generations of wireless communication system was developed for Voice and Short Message Services?

  1. 1G

  2. 2G

  3. 2.5G

  4. 3G

  5. 4G


Correct Option: B
Explanation:

This generation of wireless communication system was developed for Voice and Short Message Services.

Which of the following is a technique that divides a cell into multiple smaller cells to increase the number of subscribers?

  1. PSTN

  2. HLR

  3. Hand-Off

  4. Cell splitting

  5. Base station


Correct Option: D
Explanation:

This is a technique that divides a cell into multiple smaller cells to increase the number of subscribers.

The GSM technology used for voice channels having circuit switched data uses spectrum space of about

  1. 30 KHz

  2. 25 KHz

  3. 200 KHz

  4. 1.25 KHz

  5. 300 KHz


Correct Option: C
Explanation:

This is the spectrum space used by GSM technology used for voice channels having circuit switched data.

Which of the following is a technology used in digital cellular telephone communication that divides each cellular channel into three time slots in order to increase the amount of data that can be carried?

  1. ITU

  2. CSD

  3. TDMA

  4. IS-95

  5. OFDM


Correct Option: C
Explanation:

This is a technology used in digital cellular telephone communication that divides each cellular channel into three time slots in order to increase the amount of data that can be carried.

Which of the following components of a cellular system database contains the information of each subscriber who resides in the same city as the Mobile Switching Center?

  1. VLR database

  2. HLR database

  3. File Sever database

  4. GSM

  5. Base station


Correct Option: B
Explanation:

This component of a cellular system database contains the information of each subscriber who resides in the same city as the Mobile Switching Center.

Which of the following important properties of mobility management enables users to access the network outside the geographical coverage of its home network?

  1. Location area

  2. Frequency reuse

  3. Roaming

  4. Reuse distance

  5. Cell splitting


Correct Option: C
Explanation:

This is an important property of mobility management that enables users to access the network outside the geographical coverage of its home network.

Which of the following terms in GSM network refers to the rate at which data can be transmitted from one place to another through the transmission media used in architecture?

  1. Access method

  2. Frequency band

  3. Transmission speed

  4. Modulation

  5. Duplex distance


Correct Option: C
Explanation:

This term in GSM network refers to the rate at which data can be transmitted from one place to another through the transmission media used in architecture.

Which of the following bands is particularly used for downlink frequency in satellite communication through which the satellite retransmits the amplified signal to the ground stations?

  1. 6 GHz

  2. 14 GHz

  3. 4 GHz

  4. 2 GHz

  5. 1 GHz


Correct Option: C
Explanation:

This band is particularly used for downlink frequency in satellite communication.

Which of the following supplementary services in GSM network refers to a service enabled by a subscriber by barring either incoming or outgoing call?

  1. Call forwarding

  2. Call barring service

  3. Multi party services

  4. Call hold

  5. Call waiting


Correct Option: B
Explanation:

This supplementary service in GSM network refers to a service enabled by a subscriber by barring either incoming or outgoing call.

Which of the following services in GSM network refers to a method in which a message whose maximum length is 93 characters can be broadcasted to all users who are in a particular geographical region?

  1. DTMF

  2. SMS

  3. Facsimile group III

  4. Cell broadcast

  5. Voice mail


Correct Option: D
Explanation:

This service in GSM network refers to a method in which a message whose maximum length is 93 characters can be broadcasted to all users who are in particular geographical region.

Which of the following networks refers to the international telephone system based on copper wires carrying analog voice data?

  1. POTS

  2. PSTN

  3. ISDN

  4. FDDI

  5. ISP


Correct Option: B
Explanation:

This network refers to the international telephone system based on copper wires carrying analog voice data.

Which of the following TDMA bursts found in GSM network is used to synchronise a mobile station clock with base station clock?

  1. Frequency correction burst

  2. Access burst

  3. Synchronisation burst

  4. Normal burst

  5. Dummy burst


Correct Option: C
Explanation:

This TDMA burst found in GSM network is used to synchronise a mobile station clock with base station clock.

Which of the following layers in layered architecture of the GSM protocol specifies the type of transmission media used for communicating data between different components of the same system or same unit of different systems?

  1. Layer 1

  2. Layer 2

  3. Layer 3

  4. Layer 4

  5. Layer 5


Correct Option: A
Explanation:

This layer in layered architecture of the GSM protocol specifies the type of transmission media used for communicating data between different components of the same system or same unit of different systems.

Which of the following broadcast channels is/are used by the base station in a GSM network to send information about the identity of the network?

  1. Frequency correction channel

  2. Synchronisation channel

  3. Broadcast control channel

  4. Common control channels

  5. Dedicated control channels


Correct Option: C
Explanation:

This broadcast channel is a logical broadcast channel used by the base station in a GSM network to send information about the identity of the network.

Which of the following algorithms used for GSM security is an encryption algorithm that scrambles the users voice and data traffic between the handset and the base station to provide privacy?

  1. A3 algorithm

  2. A8 algorithm

  3. A5/2 algorithm

  4. A5 algorithm

  5. A5/1 algorithm


Correct Option: D
Explanation:

This algorithm used for GSM security is an encryption algorithm that scrambles the users voice and data traffic between the handset and the base station to provide privacy.

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