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Exam JN0-230 All Questions

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Exam JN0-230 topic 1 question 4 discussion

Actual exam question from Juniper's JN0-230
Question #: 4
Topic #: 1
[All JN0-230 Questions]

Click the Exhibit button.

You have configured source NAT using an address pool as shown in the exhibit. Traffic is reaching the 203.0.113.6 server but return traffic is not being received by the SRX Series device.
Which feature must be configured to allow return traffic to be accepted by the SRX Series device?

  • A. proxy ARP
  • B. destination NAT
  • C. port forwarding
  • D. reverse static NAT
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
by flameofbattle at Feb. 21, 2021, 11 p.m.

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flameofbattle
Highly Voted 3 years, 9 months ago
Correct A
upvoted 8 times
Clxxcv420
3 years, 6 months ago
Question doesnt give information about Proxy ARP has been configured, it had been already configured if you look on SRC/DST Address space. Right Answer is DST NAT. (Actually port forwarding is more securely correct answer).
upvoted 1 times
Clxxcv420
3 years, 6 months ago
https://www.juniper.net/documentation/us/en/software/junos/nat/topics/topic-map/security-nat-destination.html #set security address-book global address server-1 10.10.101.10 #set security policies from-zone untrust to-zone trust policy server-access match source-address any #set security policies from-zone untrust to-zone trust policy server-access match destination-address server-1 #set security policies from-zone untrust to-zone trust policy server-access match application any #set security policies from-zone untrust to-zone trust policy server-access then permit
upvoted 1 times
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axxo2009
3 years, 5 months ago
Answer should be A. It should be Proxy ARP. Proxy ARP should be manually configured. here interface IP and source NAT IP are in same subnet. so return ARP traffic will not know MAC address of translated NAT address unless u configured ARP.
upvoted 5 times
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JaredM
Most Recent 9 months ago
Selected Answer: A
Answer should be A
upvoted 1 times
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sheki2005
2 years, 4 months ago
correct answeer is A as well and not destination NAT
upvoted 1 times
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TT98
3 years, 1 month ago
The question does not seem to give enough info unfortunately. Proxy ARP is only necessary when exit interface is in same subnet as NAT pool. Nevertheless, proxy ARP (A) should be the correct answer because the other answers don't make sense in this context.
upvoted 3 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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