Exam 350-401 topic 1 question 972 discussion

Actual exam question from Cisco's 350-401

Question #: 972
Topic #: 1

Refer to the exhibit. An engineer must verify the operational status of ISP 1 by testing the IP reachability of the ISP1 DNS server every 10 seconds. If the DNS server is not reachable from the CPE through the Gi0/0 interface, then the test should fail. Which two configuration sets must be used to accomplish this task? (Choose two.)

A. ip route 0.0.0.0 0.0.0.0 198.51.100.1
ip route 0.0.0.0 0.0.0.0 203.0.113.1
B. ip route 0.0.0.0 255.255.255.255 198.51.100.1
ip route 0.0.0.0 255.255.255.255 203.0.113.1
C. ip route 198.51.100.252 255.255.255.255 198.51.100.1
D. ip sla 1
icmp-echo 198.51.100.252
frequency 10
ip sla schedule 1 life forever start-time now
E. ip sla 1
dns www.cisco.com name-server 198.51.100.252
frequency 10
ip sla schedule 1 life forever start-time now

Show Suggested Answer

Suggested Answer: CD 🗳️

by Mekai2020 at Jan. 20, 2024, 7:36 a.m.

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Mekai2020

Highly Voted 9 months, 1 week ago

Selected Answer: CD

If the DNS server is not reachable from the CPE through the Gi0/0 interface, then the test should fail. Add static route to direct through Gi0/0 network. C. ip route 198.51.100.252 255.255.255.255 198.51.100.1 verify the operational status of ISP 1 by testing the IP reachability of the ISP1 DNS server every 10 seconds. D. ip sla 1 icmp-echo 198.51.100.252 frequency 10 ip sla schedule 1 life forever start-time now

upvoted 11 times

IgorLVG

7 months, 1 week ago

but the question never insicates waht to do if the test fails

upvoted 3 times

night_wolf_in

7 months, 1 week ago

obviously we need the two routes, but since one is wrong for default, and the other one missing the tracking. the only valid 2 options from the set of configurations is CD

upvoted 1 times

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[Removed]

Most Recent 5 months ago

Selected Answer: CD

C and D are correct