Question 1 |
The forwarding table of a router is shown below.
\begin{array}{|c|c|c|c|} \hline \\ Subnet \; Number&Subnet \;Mask&Interface ID \\ \hline 200.150.0.0 &255.255.0.0& 1\\ \hline 200.150.64.0 &255.255.224.0 &2\\ \hline 200.150.68.0 &255.255.255.0 &3\\ \hline 200.150.68.64 &255.255.255.224 &4 \\ \hline Default & &0\\ \hline \end{array}
A packet addressed to a destination address 200.150.68.118 arrives at the router. It will be forwarded to the interface with ID _____.
\begin{array}{|c|c|c|c|} \hline \\ Subnet \; Number&Subnet \;Mask&Interface ID \\ \hline 200.150.0.0 &255.255.0.0& 1\\ \hline 200.150.64.0 &255.255.224.0 &2\\ \hline 200.150.68.0 &255.255.255.0 &3\\ \hline 200.150.68.64 &255.255.255.224 &4 \\ \hline Default & &0\\ \hline \end{array}
A packet addressed to a destination address 200.150.68.118 arrives at the router. It will be forwarded to the interface with ID _____.
1 | |
2 | |
3 | |
4 |
Question 1 Explanation:
Question 2 |
Suppose in a web browser, you click on the www.gate-2023.in URL. The browser
cache is empty. The IP address for this URL is not cached in your local host, so
a DNS lookup is triggered (by the local DNS server deployed on your local host)
over the 3-tier DNS hierarchy in an iterative mode. No resource records are cached
anywhere across all DNS servers.
Let RTT denote the round trip time between your local host and DNS servers in the DNS hierarchy. The round trip time between the local host and the web server hosting www.gate-2023.in is also equal to RTT. The HTML file associated with the URL is small enough to have negligible transmission time and negligible rendering time by your web browser, which references 10 equally small objects on the same web server.
Which of the following statements is/are CORRECT about the minimum elapsed time between clicking on the URL and your browser fully rendering it?
Let RTT denote the round trip time between your local host and DNS servers in the DNS hierarchy. The round trip time between the local host and the web server hosting www.gate-2023.in is also equal to RTT. The HTML file associated with the URL is small enough to have negligible transmission time and negligible rendering time by your web browser, which references 10 equally small objects on the same web server.
Which of the following statements is/are CORRECT about the minimum elapsed time between clicking on the URL and your browser fully rendering it?
7 RTTs, in case of non-persistent HTTP with 5 parallel TCP connections. | |
5 RTTs, in case of persistent HTTP with pipelining. | |
9 RTTs, in case of non-persistent HTTP with 5 parallel TCP connections. | |
6 RTTs, in case of persistent HTTP with pipelining. |
Question 2 Explanation:
Question 3 |
Suppose you are asked to design a new reliable byte-stream transport protocol
like TCP. This protocol, named myTCP, runs over a 100 Mbps network with Round
Trip Time of 150 milliseconds and the maximum segment lifetime of 2 minutes.
Which of the following is/are valid lengths of the Sequence Number field in the myTCP header?
Which of the following is/are valid lengths of the Sequence Number field in the myTCP header?
30 bits | |
32 bits | |
34 bits | |
36 bits |
Question 3 Explanation:
Question 4 |
Which of the following statements is/are INCORRECT about
the OSPF (Open Shortest Path First) routing protocol used in the Internet?
OSPF implements Bellman-Ford algorithm to find shortest paths. | |
OSPF uses Dijkstra's shortest path algorithm to implement least-cost path routing | |
OSPF is used as an inter-domain routing protocol | |
OSPF implements hierarchical routing. |
Question 4 Explanation:
Question 5 |
Suppose two hosts are connected by a point-to-point link and they are configured
to use Stop-and-Wait protocol for reliable data transfer. Identify in which one of
the following scenarios, the utilization of the link is the lowest.
Longer link length and lower transmission rate | |
Longer link length and higher transmission rate | |
Shorter link length and lower transmission rate | |
Shorter link length and higher transmission rate |
Question 5 Explanation:
There are 5 questions to complete.
Question 60 is wrongly tagged here, it belongs to object oriented programming.
question 67 does not have same options as gateoverflow
Question 137 not same options as gateoverflow
Options Updated.