Network Address Translation(Networking ) Questions and Answers
Question 2. Which of the following would be good reasons to run NAT?
1. You need to connect to the Internet and your hosts don't have globally unique IP addresses.
2. You change to a new ISP that requires you to renumber your network.
3. You don't want any hosts connecting to the Internet.
4. You require two intranets with duplicate addresses to merge.
1. You need to connect to the Internet and your hosts don't have globally unique IP addresses.
2. You change to a new ISP that requires you to renumber your network.
3. You don't want any hosts connecting to the Internet.
4. You require two intranets with duplicate addresses to merge.
Explanation:-
Answer: Option A. -> 1, 2 and 4The most popular use of NAT is if you want to connect to the Internet and you don't want hosts to have global (real) IP addresses, but option B and D are correct as well.
Question 3. Which of the following are advantages of using NAT?
1. Translation introduces switching path delays.
2. Conserves legally registered addresses.
3. Causes loss of end-to-end IP traceability.
4. Increases flexibility when connecting to the Internet.
5. Certain applications will not function with NAT enabled.
6. Reduces address overlap occurrence.
1. Translation introduces switching path delays.
2. Conserves legally registered addresses.
3. Causes loss of end-to-end IP traceability.
4. Increases flexibility when connecting to the Internet.
5. Certain applications will not function with NAT enabled.
6. Reduces address overlap occurrence.
Explanation:-
Answer: Option D. -> 2, 4 and 6NAT is not perfect, but there are some advantages. It conserves global addresses, which allow us to add millions of hosts to the Internet without "real" IP addresses. This provides flexibility in our corporate networks. NAT can also allow you to use the same subnet more than once in the same network without overlapping networks.
Question 5. Which of the following are disadvantages of using NAT?
1. Translation introduces switching path delays.
2. Conserves legally registered addresses.
3. Causes loss of end-to-end IP traceability.
4. Increases flexibility when connecting to the Internet.
5. Certain applications will not function with NAT enabled.
6. Reduces address overlap occurrence.
1. Translation introduces switching path delays.
2. Conserves legally registered addresses.
3. Causes loss of end-to-end IP traceability.
4. Increases flexibility when connecting to the Internet.
5. Certain applications will not function with NAT enabled.
6. Reduces address overlap occurrence.
Explanation:-
Answer: Option A. -> 1, 3 and 5NAT is not perfect and can cause some issues in some networks, but most networks work just fine. NAT can cause delays and troubleshooting problems, and some applications just won't work.
Explanation:-
Answer: Option B. -> ip nat outsideAs in access-lists, you must configure your interfaces before NAT will provide any translations. On the inside networks you would use the command ip nat inside. On the outside interface, you will use the command ip nat outside.
Explanation:-
Answer: Option A. -> ip nat insideAs in access-lists, you must configure your interfaces before NAT will provide any translations. On the inside networks you would use the command ip nat inside. On the outside interface, you will use the command ip nat outside.
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