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Test your basic knowledge |
CCNA Voice
Start Test
Study First
Subjects
:
cisco
,
it-skills
,
ccna
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. __are end office or tandem switches that connect voice circuits and perform the necessary signaling functions to originate and terminate calls.
TCAP
SS7
SSP
Message Transfer Part (MTP) L1 - L2 - and L3
2. What is the SS7 network architecture built for
B link
Quasi-associated signaling
SMH
redundancy
3. Provides access to remote databases for routing information and enables features in remote network entities
SS7
TCAP
redundancy
SCP
4. The interface between the SCP and the database system is accomplished by a standard protocol - which is typically
ISUP
X.25
MTP L2
Associated signaling
5. The MTP3 protocol is divided into two main functions
SMH - SNM
Associated signaling
SSP
SMH
6. Used to reroute or divert traffic and control congestion during network failure conditions.
Traffic Management
redundancy
TUP
linksets
7. Provides subscriber or user information such as screening and barring - calling-card services including card validation and personal identification number (PIN) - authentication - and billing.
Visitor Location Register (VLR)
LIDB
LNPDB
Associated signaling
8. Provides the routing information for special numbers - such as 800 - 877 - 888 - 900 - and 976 numbers.
STP
MTP L1
4 layers
800 databases
9. Interconnect an STP with its mate.
SCCP
C link
Signaling Routes
D link
10. Uses SCCP and MTP to route transaction messages in the SS7 network
LIDB
ISUP
800 databases
TCAP
11. Used in cellular networks to store information on subscribers roaming outside the home network.
routesets
Visitor Location Register (VLR)
SNM
STP
12. Provides the 10-digit LRN of the switch that serves the dialed-party number
Route Management
LNPDB
TCAP
4 layers
13. Have statically predefined routes for destination endpoints - The route is made up of linksets; linksets can be part of more than one route
B link
Signaling Routes
SMH - SNM
SS7
14. Is used to complete the call at the terminating SSP
SNM
Gateway STPs
dialed party number
800 databases
15. Global title translation centralizes the selection of the correct database by enabling __ to be addressed directly to the STP.
E-links
STP
queries
SMH - SNM
16. Exchanges routing information and status between signaling endpoints.
queries
SCCP
Route Management
ISUP
17. Are used to interconnect mated STP pairs of one hierarchical level
LNPDB
D link
ISUP
Link Management
18. Provide international connectivity where the same International Telecommunication Union (ITU) standards are deployed in both networks.
TCAP
routesets
dialed party number
International STPs
19. __routes all the signaling messages in the SS7 network
STP
Link Management
X.25
International STPs
20. Routes SS7 messages during normal conditions.
ISUP
SMH
SNM
Visitor Location Register (VLR)
21. Routing tables to provide alternate routes when the current route is unavailable.
logically
SMH - SNM
B link
routesets
22. Signaling uses a separate logical path for signaling through the minimal number of transfer points to reach the final destination
SCCP
Quasi-associated signaling
SMH
logically
23. __handles call establishment - exchange of information - routing - operations - billing - and support for IN services
LRN
SS7
SCCP
Message Transfer Part (MTP) L1 - L2 - and L3
24. How may layers does the SS7 protocal stack have
B link
Signaling Routes
4 layers
Visitor Location Register (VLR)
25. Network provides the intelligence to the existing PSTN
800 databases
B link
SS7
SMH - SNM
26. Uses a separate logical path for signaling and voice.is the most common form of signaling in the SS7 network
ISUP
Nonassociated signaling
Link Management
D link
27. Physical and electrical characteristics of the signaling link. T1 - DS-0 - E1 - V.35
SS7
MTP L1
SCP
Signaling Link Performance
28. The key element for delivering IN applications on the telephony network
B link
SCP
X.25
Gateway STPs
29. Used in cellular networks to store information such as current cellular phone location - billing - and cellular subscriber information.
X.25
Home Location Register (HLR)
D link
Visitor Location Register (VLR)
30. __performs out-of-band signaling in the Public Switched Telephone Network (PSTN).
Traffic Management
SS7
ISUP
SMH - SNM
31. __sets up and tears down the circuits used to connect PSTN voice and data subscribers - connects - manages - and disconnects all voice and data calls in the PSTN.
X.25
SS7
LRN
ISUP
32. Provides end-to-end addressing and routing for L4 protocols such as transaction capabilities application part (TCAP).
Home Location Register (HLR)
fully associated
SCCP
X.25
33. Interconnects between two mated pairs of STPs
ISUP
B link
Route Management
International STPs
34. Process handles the rerouting of traffic through alternate links or linksets during network link failures - also controls the flow of traffic to specific endpoints during network link failures.
Nonassociated signaling
TCAP
SNM
TCAP
35. All signaling elements are identified by a numerical __ __ - which acts as a routing address in SS7
Route Management
point code
International STPs
Traffic Management
36. Protocol conversion from national versions to the ITU standard - Network-to-network interconnection points - Network security features such as screening - which is used to examine all incoming and outgoing messages to ensure authorization
Route Management
Gateway STPs
routesets
Traffic Management
37. Signaling links are grouped together into __when the links are connected to the same endpoint.
4 layers
linksets
SCP
TCAP
38. The signaling and voice paths are directly connected between the two signaling endpoints.
ISUP
SMH
Associated signaling
Traffic Management
39. TCAP typically uses ___ services to access databases in the SS7 network.
SCCP
LRN
Quasi-associated signaling
LNPDB
40. Protocol is used to create reliable point-to-point links between endpoints in a network - perform error detection - indicate link status - and transfer information messages.
linksets
Signaling Link Performance
MTP L2
Associated signaling
41. Provides access to databases for additional routing information used in call processing. (who the call goes to)
A Link
SCP
E-links
C link
42. Is a circuit-based protocol used to establish and maintain connections for voice and data calls.
Signaling Link Performance
ISUP
4 layers
B link
43. Is used to route the call through the network
LRN
TCAP
SMH - SNM
International STPs
44. Monitors and controls the individual links of the signaling endpoint.
Link Management
SMH - SNM
LNPDB
SS7
45. Are used to interconnect an SSP to an alternate STP
linksets
E-links
SS7
logically
46. Availability of signaling in the SS7 network is critical to connect and serve telephone network users.
LNPDB
Signaling Link Performance
linksets
point code
47. L1 - L2 - and L3 provide the transport protocols for all other SS7 protocols - includes network interface specifications - reliable transfer of information - and message handling and routing
Message Transfer Part (MTP) L1 - L2 - and L3
SCCP
800 databases
SS7
48. Interconnects between signaling endpoints and STPs
Signaling Routes
routesets
A Link
Quasi-associated signaling
49. Supports physical circuit connections but is unable to handle the virtual connections and bearer circuits used in today's digital networks
SCCP
queries
TUP
ISUP
50. Are used to directly interconnect two signaling endpoints
F-links
LNPDB
MTP L1
ISUP