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Exam 300-410 topic 1 question 381 discussion

Actual exam question from Cisco's 300-410
Question #: 381
Topic #: 1
[All 300-410 Questions]



Refer to the exhibit. Bangkok is using ECMP to reach the 172.20.2.0/24 network. The network administrator must configure it in such a way that traffic from 172.16.2.0/24 network uses the Singapore router as the preferred route. Which set of configurations accomplishes this task?

  • A. Bangkok -

    access-list 101 permit ip 172.16.2.0 0.0.0.255 172.20.2.0 0.0.0.255
    !
    route-map PBR1 permit 10
    match ip address 101
    set ip next-hop 172.19.1.2
    !
    interface Ethernet0/1
    ip policy route-map PBR1
  • B. Dubai -

    access-list 101 permit ip 172.16.2.0 0.0.0.255 172.20.2.0 0.0.0.255
    !
    route-map PBR1 permit 10
    match ip address 101
    set ip next-hop 172.19.1.2
    set ip next-hop peer-address
    !
    interface Ethernet0/0
    ip policy route-map PBR1
  • C. Bangkok -

    access-list 101 permit ip 172.16.2.0 0.0.0.255 172.20.2.0 0.0.0.255
    !
    route-map PBR1 permit 10
    match ip address 101
    set ip next-hop 172.19.1.2
    !
    interface Ethernet0/2
    ip policy route-map PBR1
  • D. Dubai -

    access-list 101 permit ip 172.16.2.0 0.0.0.255 172.20.2.0 0.0.0.255
    !
    route-map PBR1 permit 10
    match ip address 101
    set ip next-hop 172.19.1.2
    !
    interface Ethernet0/0
    ip policy route-map PBR1
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
by ellen_AA at Jan. 15, 2023, 9:43 p.m.

Comments

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ellen_AA
Highly Voted 2 years, 6 months ago
Given answer is correct, PBRs are always applied on the ingress interface
upvoted 10 times
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XBfoundX
Most Recent 1 year ago
Correct the traffic is originated by the Dubai router, so the PBR must be set to the eth0/2 interface where the packet is incoming in the router. Then the PBR is gonna put the next hop in the packet and then is gonna send the packet via the Singapore Router. Remember that a PBR can function only if applied to the source interface where the traffic is incoming, because you can modifiy the packet, if it is in outgoing you will not be able to modify the packet cause it leaves the router itself
upvoted 2 times
...
Tim303
1 year, 4 months ago
No, A is correct answer because because the PBR must be applied on the e0/0
upvoted 1 times
bk989
1 year ago
No. D is correct. PBR is applied from where the 172.16.2.0 is coming from.
upvoted 1 times
...
...
HarwinderSekhon
1 year, 11 months ago
Selected Answer: C
PBR on source always preferred
upvoted 3 times
...
inteldarvid
2 years ago
Selected Answer: C
yes, its correct, ist similar with AC extenda, always close to the source
upvoted 4 times
...
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C (25%)
B (20%)
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