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Computer Networking

Computer Networking
Four bits are used for packet sequence numbering in a sliding window protocol used in a computer network. What is the maximum window size?

4
16
None of these
8
15

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Computer Networking
One important characteristic of the hub architecture of ARC-net is

directionalized transmission
alternative routing
None of these
multiple virtual networks
access control and addressing

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Computer Networking
Error control is needed at the transport layer because of potential errors occurring _____.

in routers
from transmission line noise
from out-of-sequence delivery
from packet losses.

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Computer Networking
The data communication support should include, but is not restricted to

terminal support, electronic mail and voice grams.
file transfer and transaction processing
file and database access
All of these

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Computer Networking
Which protocol does Ping use?

ARP
ICMP
TCP
BootP

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Computer Networking
Which of the following TCP/IP protocol is used for transferring electronic mail messages from one machine to another?

RPC
SMTP
FTP
None of these
SNMP

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