Discuss Nokia 4A0-113 Exam Topic 9 Question 113

An OSPF router receives an update in which the sequence number, age, and checksum are the same as the entry already in the topological database. What action is taken by the router?

AThe link state information is not populated in the database but is forwarded to all neighbors

BThe link state information already in the database is overwritten and the age is reset

CThe link state information is not populated in the database and an acknowledgement is sent

DThe link state information is regarded as old and nothing is done.

Suggested Answer: C

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17 comments · newest first

Nenita 1 month ago

I lean towards B, but it feels unnecessary.

Alishia 1 month ago

Definitely D. Stability is key in OSPF.

Yuette 1 month ago

C seems less likely. If it's the same, just do nothing.

Paz 2 months ago

I feel like C could be right too. Sending an acknowledgment is important.

Charlene 2 months ago

A is risky. Better to stick with D.

Chantay 2 months ago

But what about A? Forwarding to neighbors could be useful.

Luke 2 months ago

I agree, D makes sense. No need to update.

Chu 2 months ago

I think it's D. The info is old, so why change anything?

Adolph 2 months ago

Just to clarify, the sequence number being the same means no update is needed.

Yolando 3 months ago

Nah, it's definitely not A, that would cause unnecessary traffic.

Francis 3 months ago

Wait, are you sure? I thought it might be A.

Sang 3 months ago

Totally agree, D makes the most sense here.

Herminia 3 months ago

It's D, nothing is done since it's considered old.

Lisha 3 months ago

I practiced a similar question, and I think it’s about not changing the database if the sequence number is the same. So, option D sounds right to me.

Arlen 4 months ago

I’m a bit confused, but I feel like if the info is the same, it shouldn’t overwrite anything. So maybe it’s option A?

Halina 4 months ago

I remember something about OSPF not updating the database if the information is identical. Could it be option C, where it sends an acknowledgment?

Erick 4 months ago

I think the router should just ignore the update since the sequence number and age are the same. Maybe it’s option D?

Nokia 4A0-113 Exam - Topic 9 Question 113 Discussion