What mechanism does LDP session protection use to maintain an LDP session even when the underlying link fails?

Periodic link-state advertisements that refresh the LDP neighbor table

The use of BGP-labeled unicast to replace the LDP session

A backup LDP session established over a separate physical interface

Targeted hello messages sent to the peer's transport address

What is the primary purpose of LDP-IGP synchronization on a router running both LDP and an IGP such as OSPF or IS-IS?

To make the IGP redistribute LDP-learned routes into the routing table

To ensure that the IGP advertises a link as up only after LDP has established a session and exchanged labels for that link

To force LDP to use the same hello interval as the IGP to reduce protocol overhead

To synchronize the LDP label database with the BGP routing table so that all prefixes receive labels

A service provider is designing a Unified MPLS architecture to provide end-to-end MPLS services across multiple IGP domains. The provider wants to avoid label swapping at domain boundaries and reduce the number of labels required. Which approach should be used?

Use BGP-labeled unicast to distribute labels across domains.

Disable LDP on the boundary routers.

Use LDP targeted sessions between all routers.

Run a single IGP across all domains.

CiscoCertified Network Professional Service Provider

Domain 3Objective 1

3.1 Implement MPLS 350-501 Practice Questions (Page 2)

Part of the MPLS and Segment Routing domain, which accounts for 20% of the 350-501 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~10–16 in this domain), expect 3–5 from this objective — we provide 25 practice questions to prepare you well beyond it. (estimate)

25questions here

5free pages

8concepts

20%of the exam

Questions 6–10

6foundation · easy
What mechanism does LDP session protection use to maintain an LDP session even when the underlying link fails?
Select an answer first
7foundation · easy
What is the primary purpose of LDP-IGP synchronization on a router running both LDP and an IGP such as OSPF or IS-IS?
Select an answer first
8application · medium
A service provider is designing a Unified MPLS architecture to provide end-to-end MPLS services across multiple IGP domains. The provider wants to avoid label swapping at domain boundaries and reduce the number of labels required. Which approach should be used?
Select an answer first
9foundation · easy
Which MPLS OAM tool is used to verify the data plane of an LSP by sending a probe packet that is forwarded along the label stack?
Select an answer first
10foundation · easy
Which LDP hello type is used to establish and maintain an LDP session when the peers are not directly connected at the link layer?
Select an answer first

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3.1 Implement MPLS 350-501 Practice Questions (Page 2)

Questions 6–10

What mechanism does LDP session protection use to maintain an LDP session even when the underlying link fails?

What is the primary purpose of LDP-IGP synchronization on a router running both LDP and an IGP such as OSPF or IS-IS?

A service provider is designing a Unified MPLS architecture to provide end-to-end MPLS services across multiple IGP domains. The provider wants to avoid label swapping at domain boundaries and reduce the number of labels required. Which approach should be used?

Which MPLS OAM tool is used to verify the data plane of an LSP by sending a probe packet that is forwarded along the label stack?

Which LDP hello type is used to establish and maintain an LDP session when the peers are not directly connected at the link layer?

Keep studying — MPLS and Segment Routing