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
if urgent then call us on 08791490301, 08273413412
Bca4010
Fall 2016
Sem 4th
Q1. What is
OSI model? Explain all its layers with diagram.
Answer: Before 1990’s data communication model had
been used, in 1990’s open system Interconnection (OSI) was used. Later TCP/ Ip
protocol suit has been developed such that it was easy to use and efficient to
other. Established in 1947, the International Standards Organization (ISO) is a
multinational body dedicated to worldwide agreement on International standards.
An ISO standard that covers
2 What is
Message 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 data
networks.
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
5. Discuss
about different DNS Resource Record Types.
Answer:
Types of DNS Records
A
AAAA
CNAME
MX
PTR
AAAA
CNAME
MX
PTR
6 Briefly
explain five parts of Multipurpose Internet Mail Extensions.
Answer: MIME can be described in five parts:
Ø
Protocols
for including objects other than US ASCII text mail messages within the bodies
of messages conforming to RFC 2822. These are described in RFC 2045.
Ø
General
structure of the MIME media typing system, which defines an initial set of
media types. This is
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
if urgent then call us on 08791490301, 08273413412
No comments:
Post a Comment