How does OSPF ensure that LSAs in the link-state database remain current?

LSAs are refreshed only when a topology change occurs

LSAs are refreshed by the Area Border Router

The originating router refreshes each LSA every 30 minutes

The Designated Router refreshes all LSAs in the area

What is the purpose of a Type 4 ASBR Summary LSA?

To advertise the location of an ASBR to routers in other areas

To represent a multi-access network segment

To advertise external routes learned from other protocols

To describe the links of a router within its area

Which router originates a Type 4 ASBR Summary LSA?

The Designated Router on the ASBR's segment

The Autonomous System Boundary Router itself

What information is contained in a Type 1 Router LSA?

External routes redistributed from other protocols

Routes to networks in other areas

The list of routers attached to a multi-access network

The router's links to networks within its area, including link type, link ID, and metric

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

Domain 2Objective 7

Link-State Advertisement (LSA) Packet Type JN0-364 Practice Questions (Page 1)

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 25 practice questions to prepare you well beyond it. (estimate)

25questions here

5free pages

9concepts

Questions 1–5

1foundation · easy
How does OSPF ensure that LSAs in the link-state database remain current?
Select an answer first
2foundation · easy
What is the purpose of a Type 4 ASBR Summary LSA?
Select an answer first
3foundation · easy
Which router originates a Type 4 ASBR Summary LSA?
Select an answer first
4application · medium
A service provider has configured an OSPF Not-So-Stubby Area (NSSA) to allow the import of external routes from a customer's network. The NSSA contains an ASBR that redistributes these external routes. Which LSA type is used to advertise these external routes within the NSSA?
Select an answer first
5foundation · easy
What information is contained in a Type 1 Router LSA?
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.