MCQ on Integrated Service Digital Network (ISDN) Part-2

1. ................... can be used for carrying digital data, PCM encoded voice signal, coded at 64 Kbps.
A) A channel
B) B channel
C) D channel
D) H channel

2. Different types of connections which can be set up over a B channel of ISDN is/are ..
i) Packet switched connections  ii) Circuit switched connections  iii) Frame mode connections   iv) Semi permanent connections
A) i, ii and iv only
B) i, iii and iv only
C) ii, iii and iv only
D) All i, ii, iii and iv

3............ are used for user information a higher bit rates such as fast facsimile, video, high speed data, high quality audio etc.
A) A channels
B) B channels
C) D channels
D) H channels

4. Basic channel structure of H channels is a package offered to the user which consists of .......... full duplex 64Kbps B channel(s) and ......... full duplex 16Kbps D channel.
A) one, two
B) two, one
C) two, three
D) three, two

5. ............. of ISDN refers to certain finite arrangements of physical equipment or combination of equipment
A) Reference grouping
B) Reference points
C) Functional grouping
D) Functional points

6. ............ in ISDN correspond to the conceptual points used in order to separate groups of functions.
A) Reference grouping
B) Reference points
C) Functional grouping
D) Functional points

7. ............ includes the functions associated with the physical and electrical termination of the ISDN on the user's premises.
A) Network Termination 1 (NT1)
B) Network Termination 2 (NT2)
C) Network Termination 1,2 (NT12)
D) Terminal Equipment Type 1 (TE1)

8. ............. is a customer premises switching equipment and it is an intelligent device which performs switching and concentration functions.
A) Network Termination 1 (NT1)
B) Network Termination 2 (NT2)
C) Network Termination 1,2 (NT12)
D) Terminal Equipment Type 1 (TE1)

9. Digital telephones integrated voice/data terminals and digital fax are the examples of ............. in ISDN.
A) Network Termination 1 (NT1)
B) Network Termination 2 (NT2)
C) Network Termination 1,2 (NT12)
D) Terminal Equipment Type 1 (TE1)

10. The different reference points in ISDN is/are
i) Terminal point (T)  ii) System Reference Point (S)  iii) Rate Reference Point (R)  iv) United Reference Point (U)
A) i, ii and iii only
B) i, iii and iv only
C) ii, iii and iv only
D) All i, ii, iii and iv



11. .......... is used to provide a non-ISDN interface between the user equipment with the adapter equipment.
A) Terminal point (T)
B) System Reference Point (S)
C) Rate Reference Point (R)
D) United Reference Point (U)

12. .......... in ISDN corresponds to minimum ISDN Network termination at customer premise.
A) Terminal point (T)
B) System Reference Point (S)
C) Rate Reference Point (R)
D) United Reference Point (U)

13. Control signaling, packet switching and telemetry are the applications of ............. .
A) A channel
B) B channel
C) D channel
D) H channel

14. ............ in ISDN is used for establishing, maintaining and terminating the connectors on channel B.
A) Control signaling
B) Telemetry
C) Packet switching
D) Circuit switching

15. The B channel can be used for in which of the following applications.
i) circuit switching  ii) semi-permanent circuits   iii) packet switching  iv) control signaling
A) i, ii and iv only
B) i, ii and iii only
C) ii, iii and iv only
D) i, iii and iv only

16. ISDN provides which of the following types of end to end communication services.
i) circuit switched calls over a B channel
ii) Semi permanent connections over a B channel
iii) Packet switched calls over H channel
iv) Packet switched calls over D channel
A) i, ii and iv only
B) i, ii and iii only
C) ii, iii and iv only
D) i, iii and iv only

17. .......... is used to distinguish between messages for the user-network call control and the other message types.
A) Protocol discriminator
B) Call reference
C) Message type
D) Comment

18. The Q.931 message in ISDN apply in which of the following applications.
i) circuit mode control  ii) packet mode access connection control  iii) uses to user signaling associated with circuit switched calls iv) Message used with global call reference
A) i, ii and iv only
B) i, ii and iii only
C) ii, iii and iv only
D) i, iii and iv only

19. Which of the following is/are the additional function(s) performed by the Q.931 messages.
i) call establishment  ii) call information  iii) call clearing
A) i and ii only
B) ii and iii only
C) i and iii only
D) All i, ii and iii

20. The two different bit rates for which one primary channel structure or primary access is designed are ...... and ..........
A) 1.444Mbps, 2.48Mbps
B) 1.544Mbps, 2.048Mbps
C) 1.644Mbps, 2.058Mbps
D) 1.445Mbps, 2.084Mbps

 
Answers

1. B) B channel
2. D) All i, ii, iii and iv
3. D) H channels
4. B) two, one
5. C) Functional grouping
6. B) Reference points
7. A) Network Termination 1 (NT1)
8. B) Network Termination 2 (NT2)
9. D) Terminal Equipment Type 1 (TE1)
10.A) i, ii and iii only
11.C) Rate Reference Point (R)  
12.A) Terminal point (T)
13.C) D channel
14.A) Control signaling
15.B) i, ii and iii only
16.A) i, ii and iv only
17.A) Protocol discriminator
18.A) i, ii and iv only
19.D) All i, ii and iii
20.B) 1.544Mbps, 2.048Mbps   
MCQ on Integrated Service Digital Network (ISDN) Part-2
2017-01-13T00:00:00-08:00
Shuseel Baral
Multiple Choice Question (MCQ)|Networking|