Exam Details
| Subject | computer networks | |
| Paper | ||
| Exam / Course | b.tech | |
| Department | ||
| Organization | Institute Of Aeronautical Engineering | |
| Position | ||
| Exam Date | July, 2018 | |
| City, State | telangana, hyderabad |
Question Paper
Hall Ticket No Question Paper Code: AIT003
INSTITUTE OF AERONAUTICAL ENGINEERING
(Autonomous)
B.Tech IV Semester End Examinations (Supplementary) July, 2018
Regulation: IARE R16
COMPUTER NETWORKS
Time: 3 Hours (Common to CSE IT) Max Marks: 70
Answer ONE Question from each Unit
All Questions Carry Equal Marks
All parts of the question must be answered in one place only
UNIT I
1. Explain Transmission control protocol Internet Protocol suite in detail by explaining all TCP/IP
layers.
What is propagation delay? Consider a point-to-point link 4 km in length. At what bandwidth
would propagation delay (at a speed of 2×108 equal transmit delay for 100-byte packets?
2. Explain and differentiate packet switching and circuit switching with a diagram.
What is transmission impairment? If the signal at the beginning of a cable with -0.3 dB/km has
a power of 2 mW, what is the power of the signal at 5 km?
UNIT II
3. Discuss what kind of problems can arise when two hosts on the same Ethernet share the same
hardware address.
What is the procedure of calculating checksum? Calculate the checksum for the data 11, 12,
6. Calculate the syndrome if data 12 becomes 13 during transmission.
4. Define Highlevel Data Link Control(HDLC). Discuss the modes and types of frames.
What is error detection? Consider a user want to transmit the message 1011001001001011 and
protect it from errors using the CRC-8 polynomial.
UNIT III
5. Explain Internet Control Message Protocol (ICMP) as error reporting and query message.
Define Subnet. Consider a company is granted the site address 201.70.64./16. The company
needs six subnets of equal size, accordingly design the subnets.
6. Differentiate between IPv4 and IPv6 with its detailed sketch.
Describe the working of Border Gateway Protocol(BGP) with an example
UNIT IV
7. Discuss the issues of sliding window when SWS=RWS with an example and mention the technique
how to overcome.
What is multiplexing and de-multiplexing and why it is required? Discuss the working w.r.t
connection oriented and connectionless with an example.
Page 1 of 2
8. Explain 3-way handshake in TCP. Draw the packet transmission sequence when: Host A sends
one segment to Host B. Suppose that this segment has sequence number 92 and contains 8 bytes
of data. After sending this segment, Host A waits for a segment from B with acknowledgment
number 100.
Explain why TIME WAIT is a somewhat serious problem if the server initiates the close than if
the client does. Describe a situation in which this might reasonably happen.
UNIT V
9. What is DNS? Mention the difference between TLD and authoritative servers with an example.
Justify how the naming convention is resolved in DNS.
Describe the structure of HTTP request and response message.
10. Discuss in detail on electronic mail by using a scenario.
Explain about FTP communication process with the help of a neat sketch.
INSTITUTE OF AERONAUTICAL ENGINEERING
(Autonomous)
B.Tech IV Semester End Examinations (Supplementary) July, 2018
Regulation: IARE R16
COMPUTER NETWORKS
Time: 3 Hours (Common to CSE IT) Max Marks: 70
Answer ONE Question from each Unit
All Questions Carry Equal Marks
All parts of the question must be answered in one place only
UNIT I
1. Explain Transmission control protocol Internet Protocol suite in detail by explaining all TCP/IP
layers.
What is propagation delay? Consider a point-to-point link 4 km in length. At what bandwidth
would propagation delay (at a speed of 2×108 equal transmit delay for 100-byte packets?
2. Explain and differentiate packet switching and circuit switching with a diagram.
What is transmission impairment? If the signal at the beginning of a cable with -0.3 dB/km has
a power of 2 mW, what is the power of the signal at 5 km?
UNIT II
3. Discuss what kind of problems can arise when two hosts on the same Ethernet share the same
hardware address.
What is the procedure of calculating checksum? Calculate the checksum for the data 11, 12,
6. Calculate the syndrome if data 12 becomes 13 during transmission.
4. Define Highlevel Data Link Control(HDLC). Discuss the modes and types of frames.
What is error detection? Consider a user want to transmit the message 1011001001001011 and
protect it from errors using the CRC-8 polynomial.
UNIT III
5. Explain Internet Control Message Protocol (ICMP) as error reporting and query message.
Define Subnet. Consider a company is granted the site address 201.70.64./16. The company
needs six subnets of equal size, accordingly design the subnets.
6. Differentiate between IPv4 and IPv6 with its detailed sketch.
Describe the working of Border Gateway Protocol(BGP) with an example
UNIT IV
7. Discuss the issues of sliding window when SWS=RWS with an example and mention the technique
how to overcome.
What is multiplexing and de-multiplexing and why it is required? Discuss the working w.r.t
connection oriented and connectionless with an example.
Page 1 of 2
8. Explain 3-way handshake in TCP. Draw the packet transmission sequence when: Host A sends
one segment to Host B. Suppose that this segment has sequence number 92 and contains 8 bytes
of data. After sending this segment, Host A waits for a segment from B with acknowledgment
number 100.
Explain why TIME WAIT is a somewhat serious problem if the server initiates the close than if
the client does. Describe a situation in which this might reasonably happen.
UNIT V
9. What is DNS? Mention the difference between TLD and authoritative servers with an example.
Justify how the naming convention is resolved in DNS.
Describe the structure of HTTP request and response message.
10. Discuss in detail on electronic mail by using a scenario.
Explain about FTP communication process with the help of a neat sketch.
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