NPTEL Ethical Hacking Assignment 3 Quiz Answers 2023:-All the Answers provided below to help the students as a reference, You must submit your assignment at your own knowledge.
What is Ethical Hacking?
Ethical hacking involves an authorized attempt to gain unauthorized access to a computer system, application, or data. Carrying out an ethical hack involves duplicating strategies and actions of malicious attackers. This practice helps to identify security vulnerabilities which can then be resolved before a malicious attacker has the opportunity to exploit them.
CRITERIA TO GET A CERTIFICATE
Average assignment score = 25% of the average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100
Final score = Average assignment score + Exam score
YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF THE AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.
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NPTEL Ethical Hacking Week 3 Assignment Answers 2023
1. Consider the following statements:
(i) In connection-oriented approach, network layer first makes a connection.
(il) IP protocol uses connection-oriented routing.
a. Only (i) is true
b. Only (ji) is true
c. Both i) and (ii) are true.
d. Both (i) and (i) are false.
Answer :-
2. Which of the following is/are true for default route?
a. Default route is used when no specific address for next hop is available.
b. In routing table default route is specified by an address 0.0.0.0.
c. In routing table default route is specified by an address 255.255.255.255
d. In routing table default route is specified by an address 127.0.0.1.
e. None of these.
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3. Which of the following is/are true for static routing?
a. In static routing routes are user defined.
b. In static routing, routing table updates periodically depending on the network condition.
c. Static routing is easy to configure.
d. None of these.
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4. Which of the following routing flags indicates that the router is up and running?
a. U
b. G
c. H
d. D
e. M
Answer :-
5. Which of the following statements) is/are true for interior routing protocol?
a. All the participating routers are present in the same autonomous system.
b. The participating routers are present in different autonomous systems.
c. Routers in different autonomous systems exchange messages to update their routing tables.
d. Routers in the same autonomous system exchange messages to update their routing tables.
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6. Which of the following statements) is/are false for Routing Information Protocol (RIP)?
a. RIP is an example of interior routing protocol.
b. RIP maintains timers to detect failed links.
c. RIP converges faster for large networks.
d. RIP consumes high bandwidth to update routes.
e. None of these.
Answer :-
7. Which of the following is/are false for Border Gateway Protocol (BGP)?
a. BGP allows routers belonging to different autonomous systems to exchange routing information.
b. BGP uses TCP connection to send routing messages.
c. BGP can also be used by routers within the same autonomous systems.
d. BGP sends keepalive messages periodically to ensure that the connection between the BGP peers is alive.
e. None of these.
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8. If a packet is to be delivered to a specific host in a network, what kind of address should be used to specify the destination?
a. Unicast address.
b. Broadcast address.
c. Anycast address.
d. None of these.
Answer :-
9. Which of the following is not true for IPv6?
a. It uses 32-bit IP addresses.
b. IPv6 address does not have any defined classes.
c. It uses 128-bit IP addresses.
d. None of these.
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10. Consider the following routing table in a router. On which interface will an IP packet with destination address 161.44.64.120 be forwarded?
a. Interface a
b. Interface b
c. Interface c
d. Interface d
e. Interface e
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NPTEL Ethical Hacking Assignment 3 Quiz Answers 2022
Q1. Which of the following is/are true for direct packet delivery option in a routing table?
a. Based on the destination IP address, the packet will be forwarded for processing to another router.
b. Based on the destination IP address, the packet will be forwarded for processing to the default router.
c. Based on the destination IP address, the packet is forwarded to the destination host present in the same network.
d. None of these.
Answer:- c. Based on the destination IP address, the packet is forwarded to the destination host present in the same network.
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Q2. Which of the following host address represents the default route in a routing table?
a. 0.0.0.1
b. 255.255.255.255
c. 127.0.0.1
d. None of these
Answer:- d. None of these
Q3. An IP packet arrives at the final destination with the M flag set as 1. Which of the following statement(s) is/are true about the packet?
a. The hop count of the packet has expired.
b. The destination is in the same network.
c. The destination is in a different network.
d. The destination is under the default router.
e. None of these.
Answer:- c. The destination is in a different network.
Q4. Which of the following statement(s) is/are true for interior routing protocol?
a. All the participating routers are present in the same autonomous system.
b. The participating routers are present in different autonomous systems.
c. Routers in different autonomous systems exchange messages to update their routing tables.
d. Routers in the same autonomous system exchange messages to update their routing tables.
Answer:- (A) & (D)
Q5. If a packet is to be delivered to exactly one within a given set of hosts in a network, what kind of address should be used to specify the destination?
a. Unicast address
b. Broadcast address
c. Anycast address
d. None of these
Answer:- c. Anycast address
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Q6. How is the destination network address determined while finding a match in the routing table?
a. Perform bitwise-AND of the destination IP address of the packet with subnet mask entry in the routing table.
b. Perform bitwise-AND of the destination IP address of the packet with network address entry in the routing table.
c. Destination network address can be obtained directly from the information present in the packet.
d. None of these.
Answer:- a. Perform bitwise-AND of the destination IP address of the packet with subnet mask entry in the routing table.
Q7. How are the links between neighbor routers kept alive in the OSPF protocol?
a. By sending PING request.
b. By initiating a TCP 3-way handshake protocol.
c. By periodically sending link-state information.
d. By periodically sending HELLO packets.
Answer:- d. By periodically sending HELLO packets.
Q8. Which of the following represents tunneling?
a. An entire IPv6 packet is included as payload inside an IPv4 packet.
b. A packet is sent from an IPv4 network to an IPv6 network.
c. A packet is sent from an IPv6 network to an IPv4 network.
d. None of these.
Answer:- a. An entire IPv6 packet is included as payload inside an IPv4 packet.
Q9. Consider the following routing table in a router. On which interface will an IP packet with destination address 161.44.64.120 be forwarded?
a. Interface a
b. Interface b
c. Interface c
d. Interface d
e. Interface e
Answer:- b. Interface b
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Q10. An entry in the routing table has 155.86.56.0 as the destination, and /22 as the subnet mask. What will be the network address?
a. 155.86.56.0
b. 155.86.0.0
c. 155.86.48.0
d. None of these.
Answer:- a. 155.86.56.0
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NPTEL Ethical Hacking Assignment 3 Quiz Answers 2022:-All the Answers provided here to help the students as a reference, You must submit your assignment at your own knowledge.
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