An OSPF router in a service provider network has just received a new Type 1 LSA from a neighbor. The router has already run SPF and installed routes in the routing table. What is the immediate next action the router takes after receiving this new LSA?

Flood the LSA to all other OSPF neighbors except the one it was received from.

Send an acknowledgment to the neighbor and wait for the next LSA.

Run the SPF algorithm immediately to recalculate routes.

Discard the LSA if it is not directly connected to the router.

A network engineer is comparing OSPF and IS-IS for a new service provider network. The engineer notes that OSPF uses a two-level hierarchy with areas, while IS-IS uses a similar concept. What is a key difference in how OSPF and IS-IS handle the link-state database?

OSPF uses Type 1-5 LSAs to describe topology, while IS-IS uses a single LSP type with TLVs.

OSPF requires all routers in an area to have an identical LSDB, while IS-IS allows routers in the same area to have different LSDBs.

OSPF stores the LSDB in a flat file, while IS-IS stores it in a database.

OSPF uses a single LSDB for the entire domain, while IS-IS uses separate LSDBs per area.

How does OSPF prevent LSAs from expiring in the link-state database?

By periodically refreshing LSAs before they reach MaxAge

By re-flooding all LSAs every 10 seconds

By increasing the MaxAge timer dynamically

By removing LSAs from the database before they expire

Juniper NetworksCertified Specialist, Service Provider Routing and Switching (JNCIS-SP)

Domain 2Objective 1

Link-State Database JN0-364 Practice Questions (Page 2)

Part of the Open Shortest Path First (OSPF) domain, which makes up ~15% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~5–9 in this domain), expect 1–1 from this objective — we provide 22 practice questions to prepare you well beyond it. (estimate)

22questions here

5free pages

6concepts

Questions 6–10

6application · medium
An OSPF router in a service provider network has just received a new Type 1 LSA from a neighbor. The router has already run SPF and installed routes in the routing table. What is the immediate next action the router takes after receiving this new LSA?
Select an answer first
7foundation · easy
During OSPF adjacency formation, which state indicates that two routers have successfully exchanged and synchronized their link-state databases?
Select an answer first
8expert · hard
A network engineer is comparing OSPF and IS-IS for a new service provider network. The engineer notes that OSPF uses a two-level hierarchy with areas, while IS-IS uses a similar concept. What is a key difference in how OSPF and IS-IS handle the link-state database?
Select an answer first
9foundation · easy
How does OSPF prevent LSAs from expiring in the link-state database?
Select an answer first
10foundation · easy
What is the input to the Shortest Path First (SPF) algorithm in OSPF?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to JN0-364

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by Juniper Networks. “JN0-364” is a trademark of its owner, used for identification only.

Link-State Database JN0-364 Practice Questions (Page 2)

Questions 6–10

An OSPF router in a service provider network has just received a new Type 1 LSA from a neighbor. The router has already run SPF and installed routes in the routing table. What is the immediate next action the router takes after receiving this new LSA?

During OSPF adjacency formation, which state indicates that two routers have successfully exchanged and synchronized their link-state databases?

A network engineer is comparing OSPF and IS-IS for a new service provider network. The engineer notes that OSPF uses a two-level hierarchy with areas, while IS-IS uses a similar concept. What is a key difference in how OSPF and IS-IS handle the link-state database?

How does OSPF prevent LSAs from expiring in the link-state database?

What is the input to the Shortest Path First (SPF) algorithm in OSPF?

Keep studying — Open Shortest Path First (OSPF)