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PROGRAM
BCA
SEMESTER
2
SUBJECT
CODE &
NAME
BCA4010,
COMPUTER NETWORKS
Qus:1
What is Message switching and Packet switching?
Answer:
Message
switching:
Message switching was
the precursor of packet switching, where messages were routed in their entirety
and one hop at a time. It was first introduced by Leonard Kleinrock in 1961.
Message switching systems are nowadays mostly implemented over packet-switched
or circuit-switched
Qus:2
What is Framing? Briefly explain Fixed-Size Framing, Variable Size Framing.
Answer:
Framing:
Data transmission in
the physical layer means moving bits in the form of a signal from the source to
destination. The physical layer provides bit synchronization to ensure that the
sender and
Qus:3
What is Stop-and-Wait Automatic Repeat Request? Briefly explain.
Answer:
Stop-and-Wait
Automatic Repeat Request:
This protocol
adds a simple error control mechanism to the stop-and-wait protocol. To detect
and correct corrupted frames, we need to add redundancy bits to our data frame.
When the frame arrives at the receiver site, it is checked and if it is
corrupted, it is silently discarded. The
Qus:4
What is the role of Internet Protocol version 4 (IPV4) in addressing and
routing packets between hosts? Briefly explain the structure of an IPV4 packet.
Answer:
The
role of Internet Protocol version 4 (IPV4) in addressing and routing packets
between hosts:
IPV4 is a datagram
protocol primarily responsible for addressing and routing packets between
hosts. IPV4 is connectionless, which means that it does not establish a
connection before
Qus:5
Explain the working and applications of SMTP..
Answer:
SMTP
works:
SMTP is based on end-to-end delivery: An SMTP client
contacts the destination host's SMTP server directly, on well-known port 25, to
deliver the mail. It keeps the mail item being
6.
Describe Caching and TTL. How it is useful in query resolving?
Answer:
When a server is
processing a recursive query, it might be required to send out several queries
to find the definitive answer. The server caches all of the information that it
receives during this process for a time that is specified in the returned data.
This amount of time is referred to as the
Get fully solved assignment. Buy online from website
online store
or
plz drop a mail with your sub code
we will revert you within 2-3 hour or immediate
Charges rs
125/subject and rs 500/semester only.
if urgent then call us
on 08791490301,
08273413412
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