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Cisco Implementing and Operating Cisco Service Provider Network Core Technologies (350-501 SPCOR) 350-501 Question # 33 Topic 4 Discussion

Cisco Implementing and Operating Cisco Service Provider Network Core Technologies (350-501 SPCOR) 350-501 Question # 33 Topic 4 Discussion

350-501 Exam Topic 4 Question 33 Discussion:
Question #: 33
Topic #: 4

A network engineer must implement an ACL-based solution to mitigate availability issues on a web service that is hosted on a server at IP address 172.16.15.18/23. Access to the web server should be allowed over HTTP from RFC 1918 addresses only. The network architect has already enabled PMTUD in the network. Which ACL configuration must the engineer implement to complete the task?


A.

access-list 198 deny ip any host 172.16.15.18 fragments

access-list 198 permit 6 10.0.0.0 0.255.255.255 172.16.15.18 0.0.1.255 eq 80

access-list 198 permit 6 172.16.0.0 0.0.255.255 172.16.15.18 0.0.1.255 eq 80

access-list 198 permit 6 192.168.0.0 0.0.0.255 172.16.15.18 0.0.1.255 eq 80

access-list 198 deny ip any any


B.

access-list 198 deny ip any host 172.16.15.18 ip-fragments

access-list 198 permit 18 10.10.0.0 0.0.255.0 172.16.15.18 255.255.254.0

access-list 198 permit 18 172.16.0.0 255.255.0 172.16.15.18 255.255.254.0

access-list 198 permit 18 192.168.0.0 255.255.0 172.16.15.18 255.255.254.0

access-list 198 deny tcp any any


C.

access-list 199 deny ip any host 172.16.15.18 tcp-fragments

access-list 199 permit tcp 10.0.0.0 0.0.255.255 172.16.15.18 0.0.254.255 eq 80

access-list 199 permit tcp 172.16.0.0 0.0.0.255 172.16.15.18 0.0.254.255 eq 80

access-list 199 permit tcp 192.168.0.0 0.0.0.255 172.16.15.18 0.0.254.255 eq 80

access-list 199 deny ip any any


D.

access-list 199 deny tcp any host 172.16.15.18 http-fragments

access-list 199 permit 16 10.10.0.0 0.255.255.255 172.16.15.18 0.0.2.253 eq 80

access-list 199 permit 16 172.16.0.0 0.0.255.255 172.16.15.18 0.0.2.253 eq 80

access-list 199 permit 16 192.168.0.0 0.0.255 172.16.15.18 0.0.2.253 eq 80

access-list 199 deny tcp any any


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