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Question 85 - 350-401 discussion

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Refer to the exhibit.

An engineer must deny Telnet traffic from the loopback interface of router R3 to the loopback interface of router R2 during the weekend hours. All other traffic between the loopback interfaces of routers R3 and R2 must be allowed at all times. Which command accomplish this task?

A.

R3(config)#time-range WEEKEND

R3(config-time-range)#periodic Saturday Sunday 00:00 to 23:59

R3(config)#access-list 150 deny tcp host 10.3.3.3 host 10.2.2.2 eq 23 time-range WEEKEND

R3(config)#access-list 150 permit ip any any time-range WEEKEND

R3(config)#interface G0/1

R3(config-if)#ip access-group 150 out

Answers
A.

R3(config)#time-range WEEKEND

R3(config-time-range)#periodic Saturday Sunday 00:00 to 23:59

R3(config)#access-list 150 deny tcp host 10.3.3.3 host 10.2.2.2 eq 23 time-range WEEKEND

R3(config)#access-list 150 permit ip any any time-range WEEKEND

R3(config)#interface G0/1

R3(config-if)#ip access-group 150 out

B.

R1(config)#time-range WEEKEND

R1(config-time-range)#periodic weekend 00:00 to 23:59

R1(config)#access-list 150 deny tcp host 10.3.3.3 host 10.2.2.2 eq 23 time-range WEEKEND

R1(config)#access-list 150 permit ip any any

R1(config)#interface G0/1

R1(config-if)#ip access-group 150 in

Answers
B.

R1(config)#time-range WEEKEND

R1(config-time-range)#periodic weekend 00:00 to 23:59

R1(config)#access-list 150 deny tcp host 10.3.3.3 host 10.2.2.2 eq 23 time-range WEEKEND

R1(config)#access-list 150 permit ip any any

R1(config)#interface G0/1

R1(config-if)#ip access-group 150 in

C.

R3(config)#time-range WEEKEND

R3(config-time-range)#periodic weekend 00:00 to 23:59

R3(config)#access-list 150 permit tcp host 10.3.3.3 host 10.2.2.2 eq 23 time-range WEEKEND

R3(config)#access-list 150 permit ip any any time-range WEEKEND

R3(config)#interface G0/1

R3(config-if)#ip access-group 150 out

Answers
C.

R3(config)#time-range WEEKEND

R3(config-time-range)#periodic weekend 00:00 to 23:59

R3(config)#access-list 150 permit tcp host 10.3.3.3 host 10.2.2.2 eq 23 time-range WEEKEND

R3(config)#access-list 150 permit ip any any time-range WEEKEND

R3(config)#interface G0/1

R3(config-if)#ip access-group 150 out

D.

R1(config)#time-range WEEKEND

R1(config-time-range)#periodic Friday Sunday 00:00 to 00:00

R1(config)#access-list 150 deny tcp host 10.3.3.3 host 10.2.2.2 eq 23 time-range WEEKEND

R1(config)#access-list 150 permit ip any any

R1(config)#interface G0/1

R1(config-if)#ip access-group 150 in

Answers
D.

R1(config)#time-range WEEKEND

R1(config-time-range)#periodic Friday Sunday 00:00 to 00:00

R1(config)#access-list 150 deny tcp host 10.3.3.3 host 10.2.2.2 eq 23 time-range WEEKEND

R1(config)#access-list 150 permit ip any any

R1(config)#interface G0/1

R1(config-if)#ip access-group 150 in

Suggested answer: C

Explanation:

We cannot filter traffic that is originated from the local router (R3 in this case) so we can only configure the ACL on R1 or R2. "Weekend hours" means from Saturday morning through Sunday night so we have to configure: "periodic weekend 00:00 to 23:59".

Note: The time is specified in 24-hour time (hh:mm), where the hours range from 0 to 23 and the minutes range from 0 to 59.

asked 10/10/2024
Aldays Kausiona
43 questions
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