Exercise: Security

Questions for: Security

Which of the following is an example of a standard IP access list?
A:
access-list 110 permit host 1.1.1.1
B:
access-list 1 deny 172.16.10.1 0.0.0.0
C:
access-list 1 permit 172.16.10.1 255.255.0.0
D:
access-list standard 1.1.1.1
Answer: B
Standard IP access lists use the numbers 1-99 and 1300-1999 and filter based on source IP address only. Option C is incorrect because the mask must be in wildcard format.
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Which command would you use to apply an access list to a router interface?
A:
ip access-list 101 out
B:
access-list ip 101 in
C:
ip access-group 101 in
D:
access-group ip 101 in
Answer: C
To apply an access list, the proper command is ip access-group 101 in.
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Which of the following is true regarding access lists applied to an interface?
A:
You can place as many access lists as you want on any interface until you run out of memory.
B:
You can apply only one access list on any interface.
C:
One access list may be configured, per direction, for each layer 3 protocol configured on an interface.
D:
You can apply two access lists to any interface.
Answer: C
A Cisco router has rules regarding the placement of access lists on a router interface. You can place one access list per direction for each layer 3 protocol configured on an interface.
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