300-320 Question #644: Real Exam Question with Answer & Explanation

The correct answer is D: All three LSAs will be processed immediately.. All three LSAs will be processed immediately. OSPF does not impose artificial delays or queuing limitations when multiple LSAs arrive simultaneously. Each valid LSA is checked against the LSDB, and if it is newer (based on sequence number, age, and checksum), it is installed and

Question

A router running OSPF simultaneously receives three different LSAs from its neighbors. How will the router process LSAs?

Options

AThe first LSA will be processed immediately; second and third LSA processing will be delayed
BThe first and second LSAs will be processed immediately; third LSA processing will be delayed
CThe first LSA will be processed right away; the second and third LSA will be dropped due to a
DAll three LSAs will be processed immediately.

Explanation

All three LSAs will be processed immediately. OSPF does not impose artificial delays or queuing limitations when multiple LSAs arrive simultaneously. Each valid LSA is checked against the LSDB, and if it is newer (based on sequence number, age, and checksum), it is installed and flooded. There is no sequential processing rule that delays the second or third LSA, and valid LSAs are never dropped simply because others arrived at the same time. OSPF's SPF calculation may be throttled (using SPF timers), but LSA reception and LSDB updates happen as LSAs arrive.

Community Discussion

No community discussion yet for this question.

Full 300-320 Practice