Refer to the exhibit. A network administrator must permit traffic from the 10.10.0.0/24 subnet to the WAN on interface Serial0. What is the effect of the configuration as the administrator applies the command?
A.
The router accepts all incoming traffic to Serial0 with the last octet of the source IP set to 0.
B.
The permit command fails and returns an error code.
C.
The router fails to apply the access list to the interface.
D.
The sourced traffic from IP range 10.0.0.0 - 10.0.0.255 is allowed on Serial0.
The permit command does not fail, it is syntactically correct even though the ACL would not work as intended because it would not allow traffic from the 10.10.0.0/24 subnet. The answer is C because ip access-list 10 in is not a valid command and is rejected. The correct command would be ip access-group 10 in.
With interfaces
ip access-group is used
with VTY lines
ip access-class is used
access-list <number/name> in/out is an invalid command, the router will not apply the access list and return an error message
B. The permit command fails and returns an error code: wrong everything is correct about this config
C. The router fails to apply the access list to the interface: wrong as you can see he does actually apply the acl on the interface
D. The sourced traffic from IP range 10.0.0.0 - 10.0.0.255 is allowed on Serial0: correct, it may be not what he wanted to do but is the only correct anwer
Reread the question: What is the effect of the configuration as the administrator applies the command?
The correct answer is D
Explanation: The configuration commands shown in the exhibit are used to apply an access list to the inbound traffic on interface Serial0 . The access list permits traffic from the 10.0.0.0/24 subnet to the WAN on interface Serial0
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