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Exam 1Y0-231 topic 1 question 67 discussion

Actual exam question from Citrix's 1Y0-231
Question #: 67
Topic #: 1
[All 1Y0-231 Questions]

Scenario: A Citrix Administrator suspects an attack on a load-balancing virtual server (IP address 192.168.100.25). The administrator needs to restrict access to this virtual server for 10 minutes.
Which access control list (ACL) will accomplish this?

  • A. add ns acl rule1 DENY -destIP 192.168.100.25 -TTL 600000
  • B. add simpleacl rule1 DENY -srcIP 192.168.100.25 -TTL 600000
  • C. add ns acl rule1 DENY -destIP 192.168.100.25 -TTL 600
  • D. add simpleacl rule1 DENY -srcIP 192.168.100.25 -TTL 600
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Suggested Answer: C 🗳️
by sailorsoul at Nov. 20, 2022, 7:04 p.m.

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RDIO
8 months, 1 week ago
Selected Answer: C
C. 600sec=10min simple acl cannot deny based on IP destination. https://docs.citrix.com/en-us/citrix-adc/current-release/networking/access-control-lists-acls/simple-acls-and-simple-acl6s.html Extended ACL can filter based on the destination IP. https://docs.citrix.com/en-us/citrix-adc/current-release/networking/access-control-lists-acls/extended-acls-and-extended-acl6s.html
upvoted 4 times
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jdellacasa
9 months, 3 weeks ago
Selected Answer: C
d parameter is source IP, not what we want to achieve with the deny.C with destip is valid :https://developer-docs.citrix.com/projects/netscaler-command-reference/en/12.0/ns/ns-acl/ns-acl/
upvoted 2 times
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Vik84
11 months, 2 weeks ago
Selected Answer: D
It is totally D, there is no such param like dstIP, check below command. Usage: add ns simpleacl <aclname> <aclaction> [-td <positive_integer>] -srcIP <ip_addr> [-destPort <port> -protocol ( TCP | UDP )] [-TTL <positive_integer>]
upvoted 1 times
sailorsoul
11 months, 2 weeks ago
simple ACL does not have dst IP, true. The question asks the admin to filter based on the destination IP address. So the only valid answer is using an extended ACL.
upvoted 1 times
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sailorsoul
11 months, 2 weeks ago
Selected Answer: C
resubmit . D is wrong because the need to filter the destination IP.
upvoted 2 times
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sailorsoul
11 months, 2 weeks ago
Selected Answer: D
When creating a simple ACL or simple ACL6, you can specify a time to live (TTL), in seconds
upvoted 1 times
sailorsoul
11 months, 2 weeks ago
Actually it is C, simple ACL cannot filter based on destination IP.
upvoted 2 times
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