This set of Data communication and Networking Multiple Choice Questions and Answers (MCQs) focuses on “Metropolitan Area Networks MAN – IEEE 802.6 – SMDS (Switched Megabit Data Services) ”.
PRACTICE IT NOW TO SHARPEN YOUR CONCEPT AND KNOWLEDGE
1. SMDS is a packet-switched datagram service for high-speed _______ traffic
- LAN
- MAN
- WAN
- none of the above
B. MAN
2. SMDS is a service that links _______ into a _______
- LANs; MAN
- MANs; LAN
- LANs; WAN
- MANs; WAN
A. LANs; MAN
3. LANs that need to be connected in a city or campus can lease a T-1 or T-3 line. Usually this is not done due to ________.
- the noise
- the inadequate data rate
- the unreliable medium
- the expense
D. the expense
4. The final SIP level 3 product is a data unit of _______ bytes.
- 44
- 46
- 48
- a variable number of
C. 48
5. How many header bytes does SIP level 3 add to each 44-byte segment?
- up to 36
- 2
- 38
- a variable number
B. 2
6. How many trailer bytes does SIP level 3 add to each 44-byte segment?
- up to 36
- 2
- 38
- a variable number
B. 2
7. The sender address that is added to user data in SIP level 3 is _______ bytes in length.
- 2
- 4
- 8
- 36
C. 8
8. The receiver address that is added to user data in SIP level 3 is _______ bytes in length.
- 2
- 4
- 8
- 36
C. 8
9. The sender and receiver addresses that are added to user data in SIP level 3 are both _______.
- telephone numbers
- physical addresses
- message
- IP addresses
A. telephone numbers
10. A 44-byte SIP level 3 data unit can contain _______.
- user data
- a header
- a trailer
- any of the above
D. any of the above
11. A _______ is added to a 44-byte SIP level 3 data unit.
- 2-byte header
- 2-byte trailer
- variable amount of pad bytes
- a and b
D. a and b
12. The final SIP level 3 data unit is _______ bytes.
- 44
- 46
- 48
- a variable number of
C. 48
13. At SIP level _______ a five-byte header is added.
- 1
- 2
- 3
- 4
B. 2
14. At SIP level 2, a _____-byte header is added.
- 3
- 4
- 5
- variable
C. 5
15. At SIP level _______, the physical interface is defined.
- 1
- 2
- 3
- 4
A. 1
16. At SIP level _______, the transmission medium and signaling system are defined.
- 1
- 2
- 3
- 4
A. 1
17. At SIP level 1, the _______ is defined.
- physical interface
- type of transmission medium
- signaling system
- all of the above
D. all of the above
