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JNTUH B.Tech 3-1 Sem CSE Branch Data Communication and Computer Networks(DCCN)
Important Questions Unit-Wise
UNIT-I (Physical Layer)
1.
Explain
data communication with its components.
2.
Explain
what is protocol with different examples.
3.
Explain
OSI reference model with suitable diagram
4.
Explain
TCP/IP reference model with suitable diagram.
5.
Compare
TCP/IP with OSI reference model.
6.
What
is network? Explain the different types of networks in details
7.
Explain
point-to-point and multi-point connection with suitable diagram.
8.
Explain
what is network topology and its types with suitable diagrams.
9.
Explain
data flow/communication flow/transmission modes with suitable diagrams
10. Explain the guided and unguided transmission
media in brief with suitable diagram
11. Explain in brief Multiplexing?
12. Explain the different types of
switching?
UNIT-II (Data Link Layer)
1.
Explain
data link layer with different functions.
2.
Define
framing. With suitable diagram explain byte stuffing and bit stuffing.
3.
Explain
HDLC protocols with suitable diagram
4.
Explain
Point-to-Point Protocol with suitable diagram
5.
Explain
error detection and error correction in Data link layer
6.
Explain
noiseless channel and how can we ensure flow control in data link layer.
7.
Explain
the following mechanisms
a.
Stop-and-Wait
ARQ
b.
Sliding
Window Protocol
c.
Go-Back-N
ARQ
d.
Selective
Repeat ARQ
8.
Explain
Random Access Protocols: Pure ALOHA and Slotted ALOHA with suitable diagrams
9.
Explain
in brief with suitable diagram:
a.
CSMA
b.
CSMA/CD
c.
CSMA/CA
10. Explain Collision free protocols/Controlled
Access protocols with diagram
11. Explain channelization with different types
with help of suitable diagrams
12. Explain different Ethernet technologies
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