Question 6 of 40

Which of the following steps is NOT required when configuring IS-IS to support Segment Routing?

Answer

Suggested Answer

The suggested answer is B.

When configuring IS-IS to support Segment Routing, MPLS label ranges reserved for Segment Routing and the Segment Routing Global Block range need to be specified. Additionally, the flooding scope of Segment Routing information must be set. However, enabling interfaces used for Segment Routing under the MPLS context is not a required step.

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Question 7 of 40

OSPF type-10 Opaque LSAs can carry different types of advertisements. What type of advertisement carries a router's local SRGB information?

Answer

Suggested Answer

The suggested answer is B.

OSPF type-10 Opaque LSAs (Link State Advertisements) can carry different types of information to support various network functions. Router's local Segment Routing Global Block (SRGB) information is carried in the Router Information (RI) Opaque LSA. This type of advertisement provides details about the router's capabilities and configuration, including the SRGB information.

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Question 8 of 40

Which of the following is not required to be advertised by a router participating in Segment Routing?

Answer

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The suggested answer is D.

Segment Routing (SR) allows for the creation of end-to-end paths through a network by using segments. In a Segment Routing architecture, various information is advertised by routers, including Local Node-SID, Adjacency-SIDs, and support for SR protocols like SR-MPLS and SRv6. However, the Segment Routing Global Block (SRGB) is necessary for SR-MPLS but not for SRv6, as SRv6 operates using IPv6 addresses and does not use the SRGB. Therefore, SRGB is not required to be advertised when SRv6 is configured.

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Question 9 of 40

Which of the following statements about Segment Routing tunnels is FALSE?

Answer

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The suggested answer is D.

For a Segment Routing tunnel, an intermediate router does not always forward the packet based on the best IGP path. Segment Routing can use a combination of Node-SIDs and Adjacency-SIDs to define specific paths that do not necessarily follow the IGP's best path. This allows for more granular control over the routing of packets, bypassing certain nodes or links as desired.

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Question 10 of 40

Which of the following is NOT one of the main goals of traffic engineering?

Answer

Suggested Answer

The suggested answer is D.

The main goals of traffic engineering involve optimizing the performance of a network by efficiently managing data flows to avoid congestion, utilize redundant links for reliability, and define traffic paths based on various constraints to meet network requirements. Using the shortest possible path through the network is often not a primary goal because it can lead to congestion and inefficiencies. Traffic engineering focuses on overall network performance and resilience rather than merely finding the shortest path.

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