Computer Networks - Unit Wise Questions
1. What is
protocol? Why do we need layered protocol architecture? Explain each layer of
OSI protocol architecture in detail.
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1. Why do we need layered protocol architecture? Discuss each layer of TCP/IP architecture along with function of each layer. Compare TCP/IP with OSI model.
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1. Explain each layer of TCP/IP model in detail. Compare it with OSI model.
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1. Explain the functioning of 7 layers
of OST model. What is the necessity of using 7 layers concept in OST model?
OR
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1. Explain the OSI reference model?
OR
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1. What are the seven layers of OSI
model? Comparison between these seven layers.
OR
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1. What is transmission media? How do guided media differ from unguided media? Explain different types of guided media in detail.(1+2+7)
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1. Define protocol. Why do we need
layered protocol architecture? Discuss each layer of TCP/IP protocol
architecture in detail.
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1. Explain
the seven layers of OSI model and compare between them.
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Explain the various layers of TCP/IP. Also, list protocols used in each
layer
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2. What is flow control? Explain Stop-and-Wait ARQ with suitable example. How is it different from Go-Back-N ARQ? (2+5+3)
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3. Explain link state routing with example.(10)
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3. What do you mean by Internet
Protocol Stack?
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3. What do you mean by Internet
Protocol Stack?
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3. Explain client server system. How
is it different from peer to peer system?
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4. Define network topology. Explain ring topology along with its merits and demerits.
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5. Explain LAN with example. How is it different from PAN?
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4. Explain client/ server network. How is it different from peer to peer network? (3+2)
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5. What is CSMA / CD ? Why is there no need for CSMA/CD on a full-duplex Ethernet LAN?(2.5+2.5)
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6. Write subnet ID and broadcast address of each subnet if you divide a class B network 150.10.0.0-150.10.255.255) in 4 different subnets. What is the new subnet mask?
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7. Explain the structure of IPv6 address. Compare IPv6 address with IPv4 address.(3+2)
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8. What is virtual circuit network? Explain ATM as a virtual circuit wide area network.(2+3)
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9. What is routing table? Differentiate static routing table with dynamic routine table.(2+3)
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10. What is open-loop congestion control? Compare it with closed-loop congestion control.(2+3)
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11. What are the different approaches for multimedia streaming? Explain.(5)
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12. Write short note on(any two)(2*2.5)
a. Blackbone network
b. ISDN
c. ALOHA
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1. Define
transmission media. Discuss different guided and unguided transmission in
detail.
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OR
What is transmission media? Discuss
each transmission media in detail.
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2. Define transmission media. What are different types of transmission media. Explain different types of unguided media in detail.
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OR
Define transmission media.
Differentiate between guided and unguided transmission media. Discuss each guided
transmission media in detail.
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3. What is circuit-switching? How it is different from packet switching?
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3.
What is packet switching? Discuss store-and-forward
transmission of packet switching.
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7. What is switching? Compare and contrast a circuit-switched network and packet-switched network.
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7. Differentiate between broadband and
base band services.
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8.
What is virtual circuit network? How is it different
from datagram network?
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b. Bridge
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2.
Discuss error detection and correction scenario.
Explain cyclic redundancy check (CRC) error detection technique with example.
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2. Explain how does CRC detect the
errors with multiple bits? Given message is M(x)=x7+x4+x3+x2+1
and the generator is G(x)=x3+1. Show the actual bit string
transmitted, suppose the third bit from the left is inverted during the
transmission. Show how the error is
detected at the receiver’s end.
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3. Define flow control. Explain Go-Back-N ARQ with suitable example. How is it different from Stop-and-Wait ARQ?
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3.
Explain the responsibilities of data link layer in
the internet model.
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4. Explain how slatted Aloha improves
the performance of system over pure Aloha.
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5. What do you mean by pipelined
reliable data transfer protocol?
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6.
Explain the point to point to protocol (PPP) with
example.
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8. Why do we need wireless LAN? Explain the architecture of IEEE 802.11 in detail.
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7. Discuss CRC as an error detection
mechanism.
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7.
Differentiate between ATM and frame relay.
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7. Explain the point to point protocol
(PPP).
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7. How does the system correct error
after error detection?
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7.
Write down the technique used in the 802.12 protocol
for wireless networks?
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8.
Differentiate between ALOHA and slotted ALOHA
protocols.
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8. What is random access protocol? Discuss ALOHA in detail.
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8. Define data link layer and its
services.
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8. How does ATM differ from frame
relay? List and briefly define the ATM service classes.
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9. Explain on ALOHA and slotted ALOHA
protocols.
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9.
Discuss channel partitioning protocol. What is TDMA?
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11. Explain the Asynchronous transfer
mode (ATM).
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c. Hamming distance
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OR
Define
routing. Discuss distance-vector routing algorithm with example.
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What do you mean by routing?
Differentiate between Non-adaptive algorithm and adaptive algorithm.
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OR
Assume a class B network. Divide this network in 16 different sub-networks. What is new subnet mask?
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OR
What do you mean by link state routing algorithm?
Differentiate between IPv4 and IPv6.
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2. What is routing? Discuss link state
routing algorithm in detail.
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2. Why do we need routing algorithm?
Discuss distance vector routing algorithm in detail.
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2. Explain
the purpose of subnetting and also explain the subnet mask.
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2. Discuss
the importance of routing algorithm. Discuss distance vector routing algorithm.
Compare it with link state routing.
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5.
Explain the Internet Control Message Protocol
(ICMP)?
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6. Define routing table. Differentiate static routing table with dynamic routing table.
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6. What is subnetting? Assume a class
C network and divide it into four subnets. What is the value of new subnet
mask?
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6. Assume a class B network and divide
it into four subnets. What is the value of new subnet mask?
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6. What do you mean by hierarchical
routing?
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6.
Assume a class C network and divide it into eight
subnets. What is the value of new subnet mask?
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6. Explain network service model.
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6. What do you mean by IP datagram
fragmentation?
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6. Why routing is important in a
computer network? Differentiate between adaptive and non-adaptive routing
algorithms.
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7.
What is IP? Discuss different classes of IPv4
address.
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7. Explain IPV4 addressing.
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7. What is static routing? How is it different from dynamic routing?
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7. Explain the multicasting routine
and its applications.
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8. What do you mean by multicasting
routing?
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8. What do you mean by network address
translator?
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9. What is NAT? How does it work? What are its benefits?
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9. Compare and contrast the IPv4 and
IPv6 header files. Do they have any fields common?
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9. Explain the Internet Control
Message Protocol (ICMP).
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10.
What is multicast routing? Discuss.
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10. In a block of address, we know the IP Address of one host is 192.34.12.56/28. What are the first address(network address) and the last address (limited broadcast address) in this block?
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11. Write short notes on:
a. Multicasting routing
b. Point-to-point protocol
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11.
Write short notes on:
a.
IPv6
b.
Network management
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b.
IPv6
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1. Discuss the relationship between
transport layer and network layer. Discuss TCP as a transport layer protocol
along with its segment structure.
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OR
What are the main relationship
between transport layer and network layer? What are the transport layer uses in
internet?
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OR
How does transport layer support flow control?
Discuss TCP as a transport layer protocol along with its segment structure.
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What do you mean by TCP? Explain
the TCP structure?
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2. Define multiplexing. What are the benefits of using multiplexing? Discuss Go-Back-N and Selective Repeat protocol in detail.
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2. Explain the congestion control
algorithm with example.
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2. Explain the congestion control
principle and its approaches.
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3. What are sliding window protocol?
Explain one-bit sliding window protocol with an appropriate diagram.
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3. Explain the connection oriented and
connectionless service.
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3.
Explain connectionless service. How is it different
from connection oriented service?
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3. What is connection oriented
service? Differentiate it with connectionless service.
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4.
How does multiplexing increases transmission
efficiency? Explain.
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4. Differentiate between transport layer and network layer
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4.
What do you mean by TCP push operation?
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5.
What is connectionless transport? Differentiate TCP
with UDP.
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5. What are the causes of congestion? Discuss leaky bucket algorithm.
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5. Explain the pipelined reliable data
transfer protocol.
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5. Why do we need multiplexing in data
communication? Discuss.
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5. Discuss the importance of
multiplexing in data communication.
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5. Explain the principle of congestion
control.
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6. Discuss different fields of UDP. How is it different from TCP?
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6.
How can we use token-bucket algorithm to control
congestion? Discuss.
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10. Define multiplexing. Discuss the
need for multiplexing in network system.
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10. Discuss the importance of congestion
control in data communication.
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10. What is congestion control? Why do
we need it?
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12. Write short notes on (any two):
a. Connection-oriented service
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1. Explain the principles of
application layer protocols. What do you mean by file transfer?
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2. Define DNS. Explain the DNS records
and DNS messages.
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4. Explain the working principle of
DNS.
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4. Differentiate between DNS records
and DNS messages.
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4. Discuss different services provided by DNS.
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4. Discuss the working principle of
DNS.
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4. Discuss HTTP in detail.
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4.
Why do we need DNS? Discuss different fields in the
DNS message.
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5.
What is FTP? Differentiate it with HTTP.
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9.
Discuss the idea used in public key encryption
system.
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11. Why do we need a DNS system when we can directly use an IP address? what is domain name space?
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11. Write short notes on:
a. HTTP
b. Backbone
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11. What is meant by “domain name”? How
is a domain name translated to an equivalent IP address? Explain with the help
of an example.
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11. Write short note on:
a. DNS
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11.
Write short notes on:
a.
DNS
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5. Describe multimedia networking and
its various applications.
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8. Discuss multimedia networking
application.
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8. Explain the importance of
multimedia network.
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8.
Discuss about streaming audio and video.
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9.
Discuss the infrastructure for network management.
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9. Mention the types of multimedia
networking applications.
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9. Discuss HTTP video streaming in detail.
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9. Why is network management an
important task?
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9. Why is network management a
challenging task?
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10. What is network management ? Discuss different areas of network management.
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10.
What are the applications of multimedia networking?
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10. What are the applications of multimedia
networking? Discuss audio streaming
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10. What are the various types of
multimedia networking application?
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10. What are the key components of
network management architecture?
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10. What are the various applications
of multimedia networking?
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11. What type of intra structure is
needed for network management?
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11. Explain the network management
architecture with suitable diagram.
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11.
Mention the intra structure for network management.
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b. Streaming audio and video
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