Cisco CCNA Mini-Test
by Subject

Created by Jay Banks

ISDN
 

1. ISDN reference point R defines the point between?
ISDN standard terminal equipment and TA2 devices
ISDN terminals and NT2 devices
Non-ISDN ports and TA (terminal adapters)
None of the above

Answer:

2. ISDN reference point U defines the point between?
ISDN ports and TA (terminal adapters)
NT1 devices and terminators
NT2 devices and terminators
Non-ISDN ports and NT1 devices

Answer:

3. ISDN reference point T defines the point between?
NT1 devices and NT2 devices
NT2 devices and NT3 devices
TA (terminal adapters) and NT1 devices
ISDN STE devices and POTS system

Answer:

4. ISDN reference point S defines the point between?
 NTx devices and NT2 devices
NT2 devices and TP (termination panels)
User terminals and NT2 devices
None of the above

Answer:

5. An ISDN TE1 device is what type of terminal equipment?
ISDN BRI termination panel
ISDN non-standard DCU
ISDN standard terminal equipment
None of the above

Answer:

6. An ISDN TE2 device is what type of terminal equipment?
Pre-ISDN standards, requires TA (terminal adapter)
ISDN standard equipment, no TA (terminal adapter) required
ISDN PRI termination panel
Pre-ISDN standards, no TA (terminal adapter) required

Answer:

7. An ISDN BRI line consists of two B (bearer) channels at ________.
48 Kbps
64 Kbps
128 Kbps
None of the above

Answer:

8. An ISDN PRI line consists of _______ B (bearer) channels at ________.
12, 32 Kbps
23, 32 Kbps
23, 64 Kbps
48, 16 Kbps

Answer:

9. Of the basic ISDN protocols, the I protocol defines what?
ISDN concepts, services, and terminology
ISDN layer 2 frame relay
Conversion of ISDN cells to the RIP protocol
Basic Rate Interface information exchange at 144 Kbps

Answer:

10. Of the basic ISDN protocols, the E protocol refers to what?
ISDN eBRE support
Wireless ISDN as a last-mile solution
Support of ISDN on Public Switched Telephone Network (PSTN)
BRI service TE1 and T3 device driver support

Answer:

11. Of the basic ISDN protocols, the Q protocol defines what?
Layer 2 to Layer 3 encapsulation
Switching and signaling
Signaling and networking
None of the above

Answer:

12. ISDN devices, accessing the ISDN network, are assigned service profile identifiers (SPIDs) to define the services subscribed to. SPIDs are associated with ISDN _________ channels.
Data
Bearer
Control
None of the above

Answer:

13. An ISDN BRI line consists of ______ D channel at ______ Kbps?
1, 16
2, 32
23, 64
24, 64

Answer:

14. An ISDN PRI line consists of ______ D channel at ______ Kbps?
1, 16
2, 32
1, 64
23, 64

Answer:

15. An Admin is asked to configure an ISDN connection to a router with a BRI/T interface. He determines that it will require an NT2 device for the connection? What can you determine from his decision?
Admin is in error and should have used a TE1 device
Admin is located outside of North America
Admin is in error and should have used a TE2 device
Admin is located in North America

Answer:

16. ISDN stands for?
International Standard Digital Network 
Inter-networked Serial Device Network
Integrated Serial Digital Network  
 Integrated Services Digital Network

Answer:

17. ISDN uses two data link layer encapsulations, one for ______ and one for ______?
Data, signaling
Handshaking, transferring
Transferring, receiving
None of the above

Answer:

18. A router's serial interface would fall into what category of ISDN terminal equipment?
TE1
NT1
TE2
NT2

Answer:

19. When configuring an ISDN BRI line as a dial-on-demand routing (DDR) link, you need basic, network-wide configuration information. Which of the following would not be needed in configuring your ISDN BRI as a DDR link?
Directory numbers
SPIDs
Switch type
Enable CHAP

Answer:

20. The Cisco configuration keyword for configuring a National ISDN-1 line is?
basic-ni1
basic-isdn-ni1
isdn-1
novell-ni1

Answer:

 


 


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