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350-501 · Question #277

Refer to the exhibit. An engineer working for a private telecommunication company with an employee ID 4402:98:032 upgrades the WAN link between routers ASBR-101 and ASBR-201 to 1Gb by installing a…

The correct answer is A. configure terminal ip prefix-list ALLOWED_PREFIXES seq 5 permit 198.18.15.0/24 route-map AS65101-OUT permit 10 match ip address prefix-list ALLOWED_PREFIXES set metric 100 router bgp 65201 address-family ipv4 neighbor 10.142.20.1 route-map AS65101-OUT out end. MED (Metric) default is 0 so making metric 100 for the advertisement to bgp neighbor on the Gi2 link will make it the backup.

Networking

Question

Refer to the exhibit. An engineer working for a private telecommunication company with an employee ID 4402:98:032 upgrades the WAN link between routers ASBR-101 and ASBR-201 to 1Gb by installing a new physical connection between the Gi3 interfaces. Which BGP attribute must the engineer configure on ASBR-201 so that the existing WAN link on Gi2 is maintained as a backup? A. B. C. D.

Exhibits

350-501 question #277 exhibit 1
350-501 question #277 exhibit 2
350-501 question #277 exhibit 3
350-501 question #277 exhibit 4
350-501 question #277 exhibit 5

Options

  • Aconfigure terminal ip prefix-list ALLOWED_PREFIXES seq 5 permit 198.18.15.0/24 route-map AS65101-OUT permit 10 match ip address prefix-list ALLOWED_PREFIXES set metric 100 router bgp 65201 address-family ipv4 neighbor 10.142.20.1 route-map AS65101-OUT out end
  • Bconfigure terminal ip prefix-list ALLOWED_PREFIXES seq 5 permit 198.18.15.0/24 route-map AS65101-OUT permit 10 match ip address prefix-list ALLOWED_PREFIXES set metric 100 router bgp 65201 address-family ipv4 neighbor 10.142.20.5 route-map AS65101-OUT out end
  • Cconfigure terminal ip prefix-list ALLOWED_PREFIXES seq 5 permit 198.18.15.0/24 route-map AS65101-OUT permit 10 match ip address prefix-list ALLOWED_PREFIXES set as-path prepend 65101 65101 router bgp 65201 address-family ipv4 neighbor 10.142.20.1 route-map AS65101-OUT out end
  • Dconfigure terminal ip prefix-list ALLOWED_PREFIXES seq 5 permit 198.18.15.0/24 route-map AS65101-OUT permit 10 match ip address prefix-list ALLOWED_PREFIXES set as-path prepend 65101 65101 router bgp 65201 address-family ipv4 neighbor 10.142.20.5 route-map AS65101-OUT out end

How the community answered

(56 responses)
  • A
    75% (42)
  • B
    14% (8)
  • C
    7% (4)
  • D
    4% (2)

Explanation

MED (Metric) default is 0 so making metric 100 for the advertisement to bgp neighbor on the Gi2 link will make it the backup.

Topics

#BGP#BGP Path Selection#Multi-Exit Discriminator (MED)#Traffic Engineering

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