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Consider the following statements about the functionality of an IP based router.
I. A router does not modify the IP packets during forwarding.
II. It is not necessary for a router to implement any routing protocol.
III. A router should reassemble IP fragments if the MTU of the outgoing link is larger than the size of the incoming IP packet.
Which of the above statements is/are TRUE?
I. A router does not modify the IP packets during forwarding.
II. It is not necessary for a router to implement any routing protocol.
III. A router should reassemble IP fragments if the MTU of the outgoing link is larger than the size of the incoming IP packet.
Which of the above statements is/are TRUE?
- a)I only
- b)I and II only
- c)II and III only
- d)II only
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Consider the following statements about the functionality of an IP bas...
I. A router modifies the IP packets during forwarding because TTL is changing.
II. A router can also be used in LAN network it does not require routing protocol at that time.
III. Packet fragmentation is done if packet size is more than MTU.
II. A router can also be used in LAN network it does not require routing protocol at that time.
III. Packet fragmentation is done if packet size is more than MTU.
Most Upvoted Answer
Consider the following statements about the functionality of an IP bas...
Statement I: A router does not modify the IP packets during forwarding.
This statement is true. A router's primary function is to forward packets from one network to another based on their IP addresses. During forwarding, a router does not modify the IP packets themselves. It simply examines the destination IP address in the packet header and determines the appropriate outgoing interface to forward the packet. The router does not change any of the packet's content or modify any of its fields.
Statement II: It is not necessary for a router to implement any routing protocol.
This statement is also true. While routing protocols are commonly used by routers to exchange routing information and build routing tables, it is not strictly necessary for a router to implement a routing protocol. In some cases, static routes can be manually configured on a router, eliminating the need for dynamic routing protocols. Static routes are manually configured routes that do not change unless explicitly modified by an administrator. However, in large networks or networks with dynamic topologies, routing protocols are usually implemented to ensure efficient and dynamic routing.
Statement III: A router should reassemble IP fragments if the MTU of the outgoing link is larger than the size of the incoming IP packet.
This statement is false. A router does not reassemble IP fragments. IP fragmentation occurs when a packet is divided into smaller fragments to fit within the Maximum Transmission Unit (MTU) of a network link. The receiving end is responsible for reassembling the fragments before processing the packet further. Routers do not perform this reassembly process. They simply forward the individual fragments based on the destination IP address. Reassembly of IP fragments is the responsibility of the receiving host.
In conclusion, the true statements are:
- Statement I: A router does not modify the IP packets during forwarding.
- Statement II: It is not necessary for a router to implement any routing protocol.
This statement is true. A router's primary function is to forward packets from one network to another based on their IP addresses. During forwarding, a router does not modify the IP packets themselves. It simply examines the destination IP address in the packet header and determines the appropriate outgoing interface to forward the packet. The router does not change any of the packet's content or modify any of its fields.
Statement II: It is not necessary for a router to implement any routing protocol.
This statement is also true. While routing protocols are commonly used by routers to exchange routing information and build routing tables, it is not strictly necessary for a router to implement a routing protocol. In some cases, static routes can be manually configured on a router, eliminating the need for dynamic routing protocols. Static routes are manually configured routes that do not change unless explicitly modified by an administrator. However, in large networks or networks with dynamic topologies, routing protocols are usually implemented to ensure efficient and dynamic routing.
Statement III: A router should reassemble IP fragments if the MTU of the outgoing link is larger than the size of the incoming IP packet.
This statement is false. A router does not reassemble IP fragments. IP fragmentation occurs when a packet is divided into smaller fragments to fit within the Maximum Transmission Unit (MTU) of a network link. The receiving end is responsible for reassembling the fragments before processing the packet further. Routers do not perform this reassembly process. They simply forward the individual fragments based on the destination IP address. Reassembly of IP fragments is the responsibility of the receiving host.
In conclusion, the true statements are:
- Statement I: A router does not modify the IP packets during forwarding.
- Statement II: It is not necessary for a router to implement any routing protocol.
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Consider the following statements about the functionality of an IP based router.I.A router does not modify the IP packets during forwarding.II.It is not necessary for a router to implement any routing protocol.III.A router should reassemble IP fragments if the MTU of the outgoing link is larger than the size of the incoming IP packet.Which of the above statements is/are TRUE?a)I onlyb)I and II onlyc)II and III onlyd)II onlyCorrect answer is option 'D'. Can you explain this answer?
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Consider the following statements about the functionality of an IP based router.I.A router does not modify the IP packets during forwarding.II.It is not necessary for a router to implement any routing protocol.III.A router should reassemble IP fragments if the MTU of the outgoing link is larger than the size of the incoming IP packet.Which of the above statements is/are TRUE?a)I onlyb)I and II onlyc)II and III onlyd)II onlyCorrect answer is option 'D'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Consider the following statements about the functionality of an IP based router.I.A router does not modify the IP packets during forwarding.II.It is not necessary for a router to implement any routing protocol.III.A router should reassemble IP fragments if the MTU of the outgoing link is larger than the size of the incoming IP packet.Which of the above statements is/are TRUE?a)I onlyb)I and II onlyc)II and III onlyd)II onlyCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements about the functionality of an IP based router.I.A router does not modify the IP packets during forwarding.II.It is not necessary for a router to implement any routing protocol.III.A router should reassemble IP fragments if the MTU of the outgoing link is larger than the size of the incoming IP packet.Which of the above statements is/are TRUE?a)I onlyb)I and II onlyc)II and III onlyd)II onlyCorrect answer is option 'D'. Can you explain this answer?.
Consider the following statements about the functionality of an IP based router.I.A router does not modify the IP packets during forwarding.II.It is not necessary for a router to implement any routing protocol.III.A router should reassemble IP fragments if the MTU of the outgoing link is larger than the size of the incoming IP packet.Which of the above statements is/are TRUE?a)I onlyb)I and II onlyc)II and III onlyd)II onlyCorrect answer is option 'D'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Consider the following statements about the functionality of an IP based router.I.A router does not modify the IP packets during forwarding.II.It is not necessary for a router to implement any routing protocol.III.A router should reassemble IP fragments if the MTU of the outgoing link is larger than the size of the incoming IP packet.Which of the above statements is/are TRUE?a)I onlyb)I and II onlyc)II and III onlyd)II onlyCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements about the functionality of an IP based router.I.A router does not modify the IP packets during forwarding.II.It is not necessary for a router to implement any routing protocol.III.A router should reassemble IP fragments if the MTU of the outgoing link is larger than the size of the incoming IP packet.Which of the above statements is/are TRUE?a)I onlyb)I and II onlyc)II and III onlyd)II onlyCorrect answer is option 'D'. Can you explain this answer?.
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