Cisco 300-510 Exam - Topic 5 Question 120 Discussion

Actual exam question for Cisco's 300-510 exam

Question #: 120
Topic #: 5

[All 300-510 Questions]

After you change the IP address on an IOS XR router, you cannot ping the new address.

Which step did you forget to complete?

Acommit the configuration

Broll back the configuration

Cmerge the configuration

Dsave the running configuration

Show Suggested Answer

Suggested Answer: A

by Colette at Mar 03, 2026, 09:58 PM

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Casie

3 days ago

Definitely A. Without committing, the new IP won't work at all.

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Lanie

8 days ago

I’m leaning towards D) save the running configuration. But committing is crucial too.

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Regenia

13 days ago

Agreed! If you don’t commit, changes won’t apply.

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Lynelle

19 days ago

I think it's A) commit the configuration. That's usually the step I forget.

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Colby

24 days ago

True, but if you don’t commit first, saving won’t help. A) is key!

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Valentine

29 days ago

What about D)? Saving the running config is important too.

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Tamar

1 month ago

I agree, A) makes sense. Without committing, changes won’t apply.

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Derick

1 month ago

I think it's A) commit the configuration. That’s usually the step I forget.

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Monroe

1 month ago

But without committing, it won't work at all. A is definitely the right choice.

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Clay

2 months ago

I feel like D) save the running configuration could be the issue too.

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Louvenia

2 months ago

Yeah, if you don't commit, changes won't apply.

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Raul

2 months ago

I think it's A) commit the configuration.

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Keva

2 months ago

Yeah, committing is the first step after any change.

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Kayleigh

2 months ago

Wait, you can't ping right after changing the IP? That's odd!

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Thersa

4 months ago

Saving the running config is important too, but not the main issue here.

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Weldon

4 months ago

I thought rolling back was the answer!

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Dino

4 months ago

You definitely need to commit the configuration.

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Talia

4 months ago

Yeah, committing is the first step after any change.

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Sheridan

5 months ago

Wait, you can't ping right after changing the IP? That's odd!

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Mira

5 months ago

Saving the running config is important too, but not the main issue here.

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Jettie

5 months ago

I thought rolling back was the answer!

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Alayna

5 months ago

You definitely need to commit the configuration.

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Jess

5 months ago

I’m a bit confused about the merge option. Does that apply here? I thought committing was the key step, but I could be wrong.

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Shasta

5 months ago

I practiced a similar question, and I think saving the running configuration is important, but it might not be the first step after changing the IP.

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Leonida

6 months ago

I'm not entirely sure, but I feel like rolling back the configuration wouldn't help in this case. It seems more like a commit issue.

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Zona

6 months ago

I think I remember something about needing to commit changes after modifying the IP address. So, maybe it's A?

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