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Viewing questions 11-20 out of questions
Questions # 11:

Click on the exhibit.

Question # 11

The link between routers R4 and R6 is down before the LSP issignaled. CSPF is enabled on the LSP. Which of the following conditions is TRUE?

Options:

A.

Router R1 sends a PATH message and router R4 sends back a PATH Error message.

B.

Router R1 does not send a PATH message because it detects an error.

C.

Router R1 sends a PATH message and router R4 sends back a PATH Tear message.

D.

Router R1 sends a PATH message and router R4 sends back a RESV Error message.

Questions # 12:

Click on the exhibit.

Question # 12

An LSP traverses R1-R2-R3-R6 and one-to-one fast reroute is enabled. If the protected LSP transports two labels, and router R2 has failed, how many labels will be on the detour path?

Options:

A.

1

B.

2

C.

3

D.

4

Questions # 13:

Click on the exhibit.

Question # 13

The link between routers R4 and R6 are configured with an admin group "red". What happens when the LSP is first signaled?

Options:

A.

The LSP will go through the path R1-R2-R4-R6.

B.

The LSP will go through the path R1-R3-R5-R6.

C.

The LSP is down because router R1 detects that no path can meet its constraints.

D.

The LSP is down because router R4 detects that no path can meet its constraints.

Questions # 14:

Click on the exhibit.

Question # 14

All links have 1Gbps unreserved bandwidth initially and Shared Explicit reservation style is used. After the LSP's primary and standby secondary paths are signaled, how much unreserved bandwidth is left on the links?

Options:

A.

R1-R2 will have 300Mbps left and R2-R4 will have 400Mbps left.

B.

R1-R2 will have 400Mbps left and R2-R4 will have 400Mbps left.

C.

R1-R2 will have 600Mbps left and R2-R4 will have 600Mbps left.

D.

R1-R2 will have 300Mbps left and R2-R4 will have 600Mbps left.

Questions # 15:

Which of the following about MPLS fast reroute is TRUE?

Options:

A.

Fast reroute is used when redundant links are not available.

B.

Fast reroute provides path protection close to the failure point.

C.

Fast reroute provides fast failure detection to the head-end router.

D.

Fast reroute protects both primary and secondary paths.

Questions # 16:

Which of the following about an LSP protected with facility FRR is TRUE?

Options:

A.

The LSP can use protection tunnels used by other LSPs.

B.

The LSP can use facility and one-to-one FRR simultaneously.

C.

The LSP is limited to link protection.

D.

A detour protection tunnel is created for this LSP.

Questions # 17:

Click on the exhibit.

Question # 17

An LSP path is established on router R1 toward router R6. After router R4 detects that the link between routers R4 and R6 goes down, which of the following will affect the failure propagation time?

Options:

A.

The time router R4 takes to send a PATH Error message toward the head-end router.

B.

The time router R4 takes to detect RSVP Hello message timeout from router R6.

C.

The time router R4 takes to send a RESV Error message to the head-end router.

D.

The time router R1 takes to signal an alternate path through router R3.

Questions # 18:

Which of the following about Fast Reroute node protection tunnels is FALSE?

Options:

A.

Node protection tunnels detour around a failed next downstream router.

B.

Node protection tunnels can only be requested for a primary LSP path.

C.

Node protection tunnels are only used by one-to-one Fast Reroute.

D.

Link protection tunnels are established if a router is unable to establish node protection tunnels.

Questions # 19:

Click on the exhibit.

Question # 19

LSP "toR8-5" requests fast reroute protection. What could be done to remove the Failure Code shown?

Options:

A.

The LSP must be enabled with CSPF on the head-end router.

B.

Fast reroute must be enabled on the downstream routers.

C.

A mixture of strict and loose hops must be defined in the primary path.

D.

CSPF and fast reroute must be enabled on all downstream routers.

Questions # 20:

Facility fast reroute with node protection is enabled for an LSP, which of the following is FALSE?

Options:

A.

Each PLR signals a bypass tunnel that avoids the next-hop downstream router.

B.

When a failure occurs, the PLR pushs an additional label onto the label stack.

C.

No bypass tunnel is established if the PLR cannot provide node protection.

D.

The head-end router sets the local protection desired flag in the session attribute object.

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