1. Important
characteristic of the hub architecture of ARC-net is _______________________
ANSWER:
directionalized transmission.
2. ____________________ is
possible in a token passing bus network.
ANSWER: in-service
expansion.
3.
A packet-switching network allows communications channel to be shared among
________ user. ANSWER: more than one
4. In
networking terminology UTP means ______________________________
ANSWER:
Unshielded Twisted Pair
5. Simple
networks management protocol (SNMP) is implemented with a daughter board in
_______
ANSWER: hubs
6.
The main purpose of a data link content monitor is to
______________________________
ANSWER: detect
problems in protocols
7. The
amount of uncertainty in a system of symbol is called _____________
ANSWER: Entropy
8.
______________________ is the name of network
architecture that was developed by IBM.
ANSWER: SNA(Systems
network architecture)
9. ___________
is not a class of LAN.
ANSWER: Broad
band
10. ____________
digits of the network user address are known as the DNIC(Data Network
Identification Code)
ANSWER: First
four
11. IP
address can be used to specify a broadcast and map to hardware broadcast if
available. By conversion broadcast address has hosted with all bits as _____ ANSWER: 1(one)
12. ______
number of hosts are attached to each of the local area network at your site.
ANSWER: 254
13.___________________
is a protocol that handles error and control messages.
ANSWER: ICMP(internet control
message protocol)
14. ___________
protocol is used for file transfer with minimal capability and minimal
overhead.
ANSWER: TFTP(Trivial
File Transfer Protocol)
15. Class
A,B and C networks Id's are _________________
ANSWER: 2,113,658
16. Ether
LAN uses ______________ encoding.
ANSWER: manchester
17. BSC
is a _________________ protocol.
ANSWER: character-oriented
protocol
18. Fibre
optics maximun segment is _______
ANSWER: 2000m
19. PURE
ALOHA does not require ________________ synchronization.
ANSWER: global
time
20. Slotted
ALOHA divides time into ___________ intervals.
ANSWER: discrete
21. Modem
is used in data transmission. In _____ it was involved and in ____ country.
ANSWER: 1950,USA
22. Error
detection at the data link level is achieved by ____________________ codes.
ANSWER: cyclic
redundancy
23. For
a sliding window of size n-1 (n- sequence numbers), there can be maximum of
________ frames sent but unacknowledged.
ANSWER: "n-1"
24. For
stop-and-wait flow control, for n data packets sent, _____ acknowledgments are
needed.
ANSWER: "n"
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