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GATE CS : Computer Networks Champion Quiz 5
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Question 1
The address resolution protocol (ARP) is used for
Question 2
Which one of the following uses UDP as the transport protocol?
Question 3
Consider different activities related to email.
m1: Send an email from a mail client to a mail server
m2: Download an email from mailbox server to a mail client
m3: Checking email in a web browser
Which is the application level protocol used in each activity?
m1: Send an email from a mail client to a mail server
m2: Download an email from mailbox server to a mail client
m3: Checking email in a web browser
Which is the application level protocol used in each activity?
Question 4
The maximum window size for data transmission using the selective reject protocol with n-bit frame sequence numbers is
Question 5
Which of the following transport layer protocols is used to support electronic mail?
Question 6
Match the following groups:
Group-I:
(P) SMTP
(Q) BGP
(R) TCP
(S) PPP
Grouo-II:
(1) Application layer
(2) Transport layer
(3) Data link layer
(4) Network layer
(5) Physical layer
Group-I:
(P) SMTP
(Q) BGP
(R) TCP
(S) PPP
Grouo-II:
(1) Application layer
(2) Transport layer
(3) Data link layer
(4) Network layer
(5) Physical layer
Question 7
Consider a selective repeat sliding window protocol that uses a frame size of 1 KB to send data on a 1.5 Mbps link with a one-way latency of 50 msec. To achieve a link utilization of 60%, the minimum number of bits required to represent the sequence number field is ________.
Question 8
The private key is the case of an asymmetrical key cryptography which is taken care by:
Question 9
Data Encryption Standard is:
Question 10
Consider three IP networks A, B and C. Host HA in networks A sends messages each containing 180 bytes of application data to a host HC in network C. The TCP layer prefixes a 20 byte header to the message. This passes through an intermediate network B. the maximum packet size, including 20 byte IP header, in each network is:
A : 1000 bytes
B : 100 bytes
C : 1000 bytes
The network A and B are connected through a 1 Mbps link, while B and C are connected by a 512 Kbps link (bps = bits per second).
A : 1000 bytes
B : 100 bytes
C : 1000 bytes
The network A and B are connected through a 1 Mbps link, while B and C are connected by a 512 Kbps link (bps = bits per second).
What is the rate at which application data is transferred to host HC? Ignore errors, acknowledgements, and other overheads.
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Mar 30GATE & PSU CS
