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Juniper Discussions

Exam JN0-230 topic 1 question 22 discussion

Actual exam question from Juniper's JN0-230
Question #: 22
Topic #: 1
[All JN0-230 Questions]

Your company has been assigned one public IP address. You want to enable Internet traffic to reach multiple servers in your DMZ that are configured with private
IP addresses.
In this scenario, which type of NAT would be used to accomplish this task?

  • A. source NAT
  • B. destination NAT
  • C. NAT without PAT
  • D. static NAT
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️
by wassimtrabelsi at Feb. 4, 2021, 9:41 p.m.

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wassimtrabelsi
Highly Voted 3 years, 2 months ago
B : destination NAT
upvoted 12 times
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66dc178
Most Recent 2 months, 3 weeks ago
Selected Answer: B
Destination NAT (DNAT) is used to translate the destination IP address and port number of incoming packets to the corresponding private IP address and port number of the internal server that is intended to receive the traffic. When multiple internal servers need to be accessible via a single public IP address, PAT (a form of DNAT) is used to differentiate the servers based on the destination port number of the incoming packets.
upvoted 1 times
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ibos8383
1 year, 8 months ago
Selected Answer: D
Static NAT maps network traffic from a static external IP address to an internal IP address or network Thus answer is D https://www.juniper.net/documentation/us/en/software/junos/nat/topics/topic-map/security-nat-static.html
upvoted 1 times
ibos8383
1 year, 8 months ago
I am sorry the answer is destination NAT, they are very similar: Mapping one destination IP address to another can also be accomplished with static NAT. Static NAT mapping allows connections to be established from either side of the gateway device, whereas destination NAT only allows connections to be established from one side. However, static NAT only allows translations from one address to another or between blocks of addresses of the same size.
upvoted 1 times
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sheki2005
1 year, 10 months ago
my answer is B...Destination NAT...not sure why they selected Source NAT
upvoted 1 times
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abobeida94
2 years, 4 months ago
Answer should be static NAT, idk why all the comments say dest NAT!!!
upvoted 1 times
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achavessu
2 years, 6 months ago
Wouldn't it make sense to select static NAT as it permits connection establishment from the internet towards the servers? It's just a thought.... From what I know, and I don't really know much... Connection establishment from the outside world isn't really achievable by implementing dynamic NAT implementations... Just a thought, would love your feedback on this one ppl! Thanks in advance!
upvoted 1 times
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learner_7061
2 years, 7 months ago
A makes no sense, it's B
upvoted 1 times
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crypto
2 years, 11 months ago
How can the answer be B when source nat i sused to translate Inside Networks to one Outside Interface global IP Address, and destination NAT is used to translate OutsideIP-s to internal IP-s??? I understand that you can do the opposite and work it around but the term is exactly as it is selected... A
upvoted 1 times
crypto
2 years, 11 months ago
And 1 minute after reviewing the wording of the question it means allowing traffic from Outside to DMZ...got it :D
upvoted 1 times
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abdelmunem
3 years, 1 month ago
B is correct
upvoted 1 times
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devnet1970
3 years, 1 month ago
Answer B is really correct !!
upvoted 2 times
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Quendall
3 years, 2 months ago
answer B!!
upvoted 4 times
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A (35%)
C (25%)
B (20%)
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