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4A0-C01 Exam Dumps - Nokia SRC Certification Questions and Answers

Question # 74

Which MPLS mode saves only active label mappings received from peer LSRs?

Options:

A.

Conservative label retention

B.

Liberal label retention

C.

Downstream on demand

D.

Downstream unsolicited

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Question # 75

Which of the following best describes an IES?

Options:

A.

Layer 3 direct Internet access service.

B.

Layer 2 point-to-point service.

C.

Layer 2 multipoint-to-multipoint service.

D.

Layer 3 IP multipoint-to-multipoint VPN service.

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Question # 76

Which of the following about IS-IS Traffic Engineering on an Alcatel-Lucent 7750 SR is FALSE?

Options:

A.

Traffic engineering information is carried in the extended TLVs.

B.

Traffic engineering must be enabled on all IP/MPLS routers along the LSP path.

C.

Traffic engineering information is stored in the opaque database,

D.

Traffic engineering is required for constraint-based LSPs.

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Question # 77

Which protocol is used to signal the outer label for a VPN service?

Options:

A.

RSVP

B.

IPCP

C.

TLDP

D.

PPP

E.

Either RSVP or LDP

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Question # 78

Click on the exhibit.

An LDP tunnel is established on R1-R2-R4-R6 because the link between routers R3 and R6 is down. With the LDP-IGP Sync feature enabled and after the link is restored, which of the following is FALSE?

Options:

A.

Router R3 starts the LDP-Sync timer after recovering the LDP session on R3-R6.

B.

Router R1 continues to use R1-R2-R4-R6 until the LDP-Sync feature is disabled.

C.

Router R3 advertises the maximum metric for the link to router R6.

D.

Router R1 receives a label from router R3 after the LDP session is established on R3-R6.

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Question # 79

Which MPLS label mode saves label mappings received from all peer LSRs?

Options:

A.

Conservative label retention

B.

Liberal label retention

C.

Downstream on demand

D.

Downstream unsolicited

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Question # 80

An LSP is enabled with one-to-one fast reroute and node protection. What action does the PLR take if node protection cannot be provided?

Options:

A.

The PLR attempts to provide link protection.

B.

The PLR disregards the request after three failed attempts.

C.

The PLR changes the PATH message to request link protection.

D.

The PLR brings down the primary LSP-path.

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Question # 81

What labels are encapsulated in the tunnels used by a 6PE deployment?

Options:

A.

The inner label is the IPv4 Explicit Null. The outer label is the MPLS transport label,

B.

The inner label is an MPLS transport label. The outer label is the IPv4 Explicit Null.

C.

The inner label is the IPv6 Explicit Null. The outer label is an MPLS transport label.

D.

The inner label is an MPLS transport label. The outer label is the IPv6 Explicit Null.

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Question # 82

Click on the exhibit.

The LSP "toR6" is configured with a fully strict path on an Alcatel-Lucent 7750 SR. Which of the following configurations is required to enable fast reroute for this LSP?

Options:

A.

Enable fast-reroute on all routers along the path. R1, R2, R4, and R6.

B.

Enable both link-protection and node-protection on router R1.

C.

Enable fast-reroute with either one-to-one or facility mode on this LSP.

D.

Enable link-protection only on router R4.

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Question # 83

Which of the following represents a SAP on a physical port configured with Q-in-Q encapsulation?

Options:

A.

sap 1/1/1

B.

sap 1/1/1:5

C.

sap 1/1/1:5:5

D.

sap 1/1/1:10.100

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Exam Code: 4A0-C01
Exam Name: Nokia NRS II Composite Exam
Last Update: Feb 22, 2025
Questions: 852
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