Computer Network | Mock Test

Question 1
What is the major application of UDP
Select one:
a. Small office network
b. Multimedia
c. Scheduling
d. LAN communication
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Question 2
Which of the methods mentioned below is not a valid Request Header?
Select one:
a. Host
b. Accept-Language
c. Set-Cookie
d. If-Modified-Since
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Question 3
How long does it take to send a file of 384,000 bits from host A to host B over a circuit-switched network?
Assume the following:
• All link speeds are 1.536 Mbps
• Each link uses TDM with 8 slots/sec
• 400 msec are required to establish end-to-end circuit
Select one:
a. 2.4 secs
b. 0.9 secs
c. 2.04 secs
d. 0.65 secs
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Question 4
What is the total size of TCP Segment
Select one:
a. 16 bits
b. 8 bits
c. 64 bits
d. 32 bits
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Question 5
Suppose within your web browser you click on a link to obtain a Web page. The IP address of the associated URL is cached in your local host, so a DNS lookup is not necessary to obtain the IP address. Suppose that the webpage associated with the link contains exactly one object consisting of a small amount of HTML text, which references 10 very small objects on the same server. Let RTT’ denote the RTT between the local host and the server containing the object. Assuming zero transmission time of the object. How much time is needed to get the to retrieve the web page fully, in the following cases:
a. Non-persistent HTTP with no parallel TCP connections?
b. Persistent HTTP?
.Select one:
a. 22RTT’, 3RTT’
b. 20RTT’, 3RTT’
c. 20RTT’, 2RTT’
d. 22RTT’, 2RTT’
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Question 6
……………….. is designed for the connectionless protocol such as User Datagram Protocol(UDP).
Select one:
a. Stream socket
b. . Raw socket
c. . Datagram socket
d. Berkeley socket
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Question 7
Which of the following statements regarding the Internet Structure is FALSE?
Select one:
a. A Tier 3 or Local ISP may decide to be a direct customer of a Tier 1 ISP
b. Each Tier 2 or Regional ISP is a customer of one or more Tier 1 ISPs
c. A Tier 1 ISP has a national or international coverage over a wide area, and has a network consisting of high end routers and links with high bandwidth
d. A Tier 2 ISP cannot peer privately with one or more Tier-2 ISPs
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Question 8
What is the solution for Silly Window syndrome in TCP
Select one:
a. Karn Partridge Algorithm
b. Nagles Algorithm
c. Sliding Window Protocol
d. Go-Back N protocol
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Question 9
The time difference between the instant at which a transport connection is requested and the instant at which it is confirmed is called as ……..
Select one:
a. Priority delay
b. Protection delay
c. Transit delay
d. Connection establishment delay
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Question 10
What is the average rate for fairness in TCP for K sessions with R bandwidth
Select one:
a. (R/K )+1
b. K/R
c. (K/R)+1
d. R/K
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