Digital Communications

ISDN and Interface

Question 1
Marks : +2 | -2
Pass Ratio : 100%
T interface is the serial interface between
Computing device and terminal adapter
Terminal adapter and exchange unit
Exchange unit and network terminating unit
Computing device and exchange unit
Explanation:
T interface is the serial interface between computing device and terminal adapter.
Question 2
Marks : +2 | -2
Pass Ratio : 100%
Packet switched connection is provided for
Voice
Data
Voice & Data
None of the mentioned
Explanation:
Packet switched connection can be provided only for data.
Question 3
Marks : +2 | -2
Pass Ratio : 100%
ISDN is a
Packet switched network
Circuit switched telephone network
Packet switched & Circuit switched telephone network
None of the mentioned
Explanation:
ISDN is a circuit switched telephone network which also provides access to packet switched network.
Question 4
Marks : +2 | -2
Pass Ratio : 100%
S-interface is a _______ bus.
Two wire bus
Four wire bus
Single wired bus
None of the mentioned
Explanation:
The S interface is a four wire bus that ISDN consumer devices plug into.
Question 5
Marks : +2 | -2
Pass Ratio : 100%
Circuit switched connection is provided for
Voice
Data
Voice & Data
None of the mentioned
Explanation:
Circuit switched connection can be provided for either voice or data.
Question 6
Marks : +2 | -2
Pass Ratio : 100%
Attributes of ISDN have
Definition
Allowable values
Definition & Allowable values
None of the mentioned
Explanation:
ISDN services are characterized by attributes and attributes have definition and allowable values.
Question 7
Marks : +2 | -2
Pass Ratio : 100%
ISDN integrates speech and data on
Different lines
Same lines
Different & Same lines
None of the mentioned
Explanation:
Integrated services for digital domain integrates speech and data signals on the same lines.
Question 8
Marks : +2 | -2
Pass Ratio : 100%
U-interface is the two wire interface between
Computing device and terminal adapter
Terminal adapter and exchange unit
Exchange unit and network terminating unit
Computing device and exchange unit
Explanation:
U-interface is the two wire connection or interface between exchange unit and network terminating unit.
Question 9
Marks : +2 | -2
Pass Ratio : 100%
The services provided by ISDN
Bearer service
Teleservice
Secondary service
All of the mentioned
Explanation:
The services provided by ISDN and classified by attributes are bearer service, teleservice and secondary service.
Question 10
Marks : +2 | -2
Pass Ratio : 100%
Channel bonding provides
Higher data rate
Lower data rate
Does not affect data rate
None of the mentioned
Explanation:
Channel bonding can achieve higher data rate.