Review these Questions
The concept and difference between LAN, WAN, MAN and PAN.
Explain briefly the functions of different layers of the OSI reference model
Explain briefly the functions of different layers of the TCP/IP model
Give the difference between ISO OSI and TCP /IP model.
List the layers of the OSI model.
What is a peer-to-peer process?
How does information get passed from one layer to the next?
What are the concerns of the Physical Layer?
What are the responsibilities of the data link layer?
What are the responsibilities of the network layer?
What are the responsibilities of the transport layer?
The transport layer creates a connection between the source and destination. What are the
three events involved in a connection?
What are the responsibilities of the session layer?
What are the responsibilities of the presentation layer?
What are the services provided by the application layer?
The difference between a packet and frame.
Explain briefly the functions of different layers of the OSI reference model
Give the difference between ISO OSI and TCP /IP model.
Which OSI layers are the network support layers?
Which OSI layers are the user support layers?
What is the difference between network layer delivery and transport layer delivery?
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What are the advantages of digital signal over analog signal?
What is pulse code modulation?
Briefly explain the process of converting any analog signal into digital signal.
Difference between Time division multiplexing and frequency division multiplexing.
Distinguish between guided and unguided transmission media.
Briefly explain the different types of transmission medias?
Give the advantages and disadvantages of using fiber optic cable over metallic cable.
Define Computer Network? Give the difference between a network and distributed system?
Discuss the applications and goals of the computer networks
Discuss the difference between connection –oriented and connections-less services.
What are the advantages of using layered architecture?
Name two categories of transmission media.
How do guided media differ from unguided media?
What are the three major classes of guided media.
What is the major advantage of shielded twisted pair over unshielded twisted pair?
Why is coaxial cable superior to twisted-pair cable?
Name the advantages of optical cable over twisted pair and coaxial cable.
What are the disadvantages of optical fiber as a transmission medium?
Discuss the difference between connection –oriented and connections-less services.
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Briefly explain the functions of Data Link Layer.
Discuss different types of Framing Methods.
Discuss various Error detecting and correcting methods.
Explain CRC method with your own example.
Explain Hamming code method with your own example.
What is meant by Flow control? Discuss different flow control methods.
Discuss various stop and wait protocols.
Explain Piggy backing, pipelining techniques.
Explain sliding window protocol.
Explain Go back ̳n‘ and selective repeat protocols.
Discuss the CSMA protocols.
Explain different STOP and WAIT protocols.
Explain the collision free protocols.
Compare the ALOHA and CSMA protocols.
Explain Token bus and its frame format.
Explain token ring and its frame format.
What is handshake?
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What is the purpose of DNS, explain?
explain e-mail system
What are the different types of messages formats used in e-mail?
Write short notes on world wide web.
What is the purpose of DNS, explain?
Explain e-mail system
What are the different types of messages formats used in e-mail?
Write short notes on world wide web (WWW).
Write short notes on HTTP?
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How is a repeater different from an amplifier?
What is the difference between a simple bridge and transparent bridge?
What is the function of router?
How does a router differ from a bridge?
Why is adaptive routing is superior to non-adaptive routing?
What are the advantage of vector routing over flow-based routing and how do they differ from each
other?
What is the function of a gateway?
What is the function of a router?
What is the function of a Bridge?
What is the difference between switch and hub?
What is the difference between gateway and bridge
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What are the functions of Network Layer?
What is flooding algorithm?
What is meant by selective flooding?
What is the disadvantage with flooding algorithm?
Give one method to overcome the disadvantage with flooding?
When the flooding algorithm will be used?
When we will go for hierarchical routing?
How the hierarchy is divided?
In distance vector routing, what will be the contents of table?
What is congestion?
What is Jitter? How the jitter can be avoided? Brifely explain the time jiiter. How latency is
different from the jittering?
Name the two congestion control algorithm.
What is the difference between a physical address and a logical address?
What are the advantages of using UDP over TCP?
What are the data packet at each TCP/IP protocol suite layer called?
Name the protocols at the network layer of the TCP/IP protocol suite.
Define port address
Define logical address
Define physical address
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A bit stream (dataword) 100100 is transmitted using the standard CRC method. The generator
polynomial is (x3+x2+1).
a) What is the actual bit string transmitted (i.e. Codeword)?
b) Suppose the third bit from the left is inverted during transmission. How will receiver
detect this error?
How does the network layer in a connection-oriented packet-switching network differ from the
network layer in a connectionless packet-switching network?
What are the advantages of packet switching compared to circuit switching?
Explain the difference between datagram and virtual circuit operation.
What is the significance of packet size in a packet-switching network?
What types of delay are significant in assessing the performance of a packet-switching network?
What is Pulse Code Modulation (PCM). With a neat and clean diagram, explain the process that
involves in analog to digital conversion.
Consider a 25-bit datstream (dataword) 1001001100011010101110101 with the frame size of 5-bit
is transmitted. What will be the Checksum? Explain the process involves in obtaining the
Checksum.
