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- Question
When creating a pool of global address, which of the following can be used instead of the netmask command?
Options- A. / (slash notation)
- B. prefix - length
- C. no mask
- D. block - size
- Correct Answer
- prefix - length
ExplanationInstead of the netmask command, you can use the prefix-length length statement.
- 1. Which command will create a dynamic pool named Todd that will provide you with 30 global addresses?
Options- A. ip nat pool Todd 171.16.10.65 171.16.10.94 net 255.255.255.240
- B. ip nat pool Todd 171.16.10.65 171.16.10.94 net 255.255.255.224
- C. ip nat pool todd 171.16.10.65 171.16.10.94 net 255.255.255.224
- D. ip nat pool Todd 171.16.10.1 171.16.10.254 net 255.255.255.0 Discuss
- 2. Which command will allow you to see real - time translations on your router?
Options- A. show ip nat translations
- B. show ip nat statistics
- C. debug ip nat
- D. clear ip nat translations Discuss
- 3. What command would you use to set an access list on a VTY line? Discuss
- 4. What command would you use to create an extended access list that stops host 172.16.10.1 fro telnetting to host 172.16.30.5? Discuss
- 5. What is the most common attack on a network today?
Options- A. Lock picking
- B. Naggle
- C. DoS
- D. auto secure Discuss
- 6. Which of the following is considered to be the inside hosts address after translation?
Options- A. Inside local
- B. outside local
- C. Inside global
- D. Outside global Discuss
- 7. Your inside locals are not being translated to the inside global addresses. Which of the following commands will show you if your inside globals are allowed to use the NAT pool? ip nat pool Corp 198.18.41.129 198.18.41.134 netmask 255.255.255.248 ip nat inside source list 100 int pool Corp overload
Options- A. debug ip nat
- B. show access - list
- C. show ip nat translation
- D. show ip nat statistics Discuss
- 8. Pat Address Translation is also called what?
Options- A. NAT Fast
- B. NAT Static
- C. NAT Overload
- D. Overloading Static Discuss
- 9. What type of address translation can use only one address to allow thousands of hosts to be translated globally? Discuss
- 10. In thefollowing output, what type of NAT is being used? ip nat pool todd-nat 170.168.10,10 170.168.10.20 netmask 255.255.255.0 Discuss
CISCO Certification problems
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Correct Answer: ip nat pool Todd 171.16.10.65 171.16.10.94 net 255.255.255.224
Explanation:
The command ip nat pool name creates the pool that hosts can use to get onto the global internet. What makes option B correct is that the range 171.16.10.65 through 171.16.10.94 includes 30 hosts, but the mask has to match 30 hosts as well, and that mask is 255.255.255.224 . Option C is wrong because there is a lowercase t in the pool name. Pool name are case sensitive.
Correct Answer: debug ip nat
Explanation:
The command debug ip nat will show you in real time the translations occurring on your router.
Correct Answer: line vty 0 4 access - class 110 in
Correct Answer: access - list 110 deny tcp host 17216101 host 17216305 eq 23 access - list 110 permit ip any any
Correct Answer: DoS
Explanation:
The most common attack on a network today is a denial of service (DoS) because they are the easiest attack to achieve.
Correct Answer: Inside global
Explanation:
An inside global address is considered to be the IP address of the host on the private network after translation.
Correct Answer: show access - list
Explanation:
Once you create your pool, the command ip nat inside source must be used to say which inside locals are allowed to use the pool. In this question we need to see if access - list 100 is configured correctly, if at all , so show access - list is the best answer.
Correct Answer: NAT Overload
Explanation:
Another term for port Address Translation is NAT Overload because that is the keyword used to enable port address translation.
Correct Answer: Port Address Translation (PAT), also called NAT Overload
Correct Answer: Dynamic NAT
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