A service provider is migrating its IS-IS network from narrow metrics to wide metrics. The network includes older routers that only support narrow metrics. The team wants to enable wide metrics on the newer routers while ensuring the older routers can still exchange routes. What configuration should be applied on the newer routers?

Leave the default narrow metric configuration and do nothing.

Enable wide metrics on the IS-IS process and interfaces without using wide-metrics-only.

Enable wide-metrics-only on the IS-IS process.

Enable wide-metrics-only on all interfaces.

In IS-IS, what is the primary purpose of the 32-bit wide metric format?

To support IPv6 routing in IS-IS

To enable faster SPF calculations

To reduce the size of the link-state database

To allow metrics to be configured with a value up to 16,777,215

A network engineer is designing an IS-IS network and wants to ensure that a high-bandwidth link is preferred over a lower-bandwidth link, even though the lower-bandwidth link has a lower hop count. The engineer plans to assign a metric of 100 to the high-bandwidth link and 200 to the lower-bandwidth link. What must be true for this metric assignment to work as intended?

Narrow metrics must be enabled on all routers in the path.

The metric values must be the same on all interfaces.

The metric values must be within the range of 0 to 63.

Wide metrics must be enabled on all routers in the path.

A network has a mix of routers: some support only narrow metrics, and others support wide metrics. The network is using default metrics. A router that supports both formats receives an LSP from a narrow-only router. How does the receiving router handle the metric for SPF calculation?

It converts the narrow metric to a wide metric by adding a fixed offset.

It ignores the narrow metric and uses a default wide metric.

It rejects the LSP because of the metric format mismatch.

It uses the narrow metric value as-is.

Juniper NetworksCertified Professional, Service Provider Routing and Switching (JNCIP-SP)

Domain 2Objective 6

Wide Metrics JN0-664 Practice Questions (Page 3)

Part of the IS-IS domain, which makes up ~18% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~6–11 in this domain), expect 1–1 from this objective — we provide 21 practice questions to prepare you well beyond it. (estimate)

21questions here

5free pages

7concepts

Questions 11–15

11foundation · easy
What is the maximum value that can be represented by the original 6-bit narrow metric in IS-IS?
Select an answer first
12application · medium
A service provider is migrating its IS-IS network from narrow metrics to wide metrics. The network includes older routers that only support narrow metrics. The team wants to enable wide metrics on the newer routers while ensuring the older routers can still exchange routes. What configuration should be applied on the newer routers?
Select an answer first
13foundation · easy
In IS-IS, what is the primary purpose of the 32-bit wide metric format?
Select an answer first
14application · medium
A network engineer is designing an IS-IS network and wants to ensure that a high-bandwidth link is preferred over a lower-bandwidth link, even though the lower-bandwidth link has a lower hop count. The engineer plans to assign a metric of 100 to the high-bandwidth link and 200 to the lower-bandwidth link. What must be true for this metric assignment to work as intended?
Select an answer first
15application · medium
A network has a mix of routers: some support only narrow metrics, and others support wide metrics. The network is using default metrics. A router that supports both formats receives an LSP from a narrow-only router. How does the receiving router handle the metric for SPF calculation?
Select an answer first

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Wide Metrics JN0-664 Practice Questions (Page 3)

Questions 11–15

What is the maximum value that can be represented by the original 6-bit narrow metric in IS-IS?

In IS-IS, what is the primary purpose of the 32-bit wide metric format?

A network has a mix of routers: some support only narrow metrics, and others support wide metrics. The network is using default metrics. A router that supports both formats receives an LSP from a narrow-only router. How does the receiving router handle the metric for SPF calculation?

Keep studying — IS-IS