Nokia 4A0-C01 Exam Made Easy: Step-by-Step Preparation Guide

Questions 141

Which LSA type is used for OSPF-TE?

Options:

Type 8 LSA — Link Local LSA

Type 9 LSA — Link local Opaque LSA

Type 10 LSA — Area local Opaque LSA

Type 11 LSA —AS Opaque LSA

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Questions 142

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4A0-C01 Question 142

Which of the following is FALSE?

Options:

The router can reach prefix 192.10.1.2/32 through a RSVP-TE tunnel.

The router can reach prefix 192.10.1.2/32 through an LDP tunnel.

The router 10.10.10.2 is the egress router of the prefix 192.10.1.2/32.

The Isp-ping tool is used to perform a unidirectional LSP test.

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Questions 143

When configuring distributed services across a network, it is considered best practice to configure which of the following parameters as globally significant? (Choose 2)

Options:

SDP ID

Service ID

Customer ID

SAP ID

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Questions 144

What action does a router perform when it looks up the label of an incoming packet in its LFIB and sees that the LFIB maps to an egress label of 3?

Options:

It requests a new label from the peer that provided this label.

It pops the label.

It pushes an additional label onto the label stack.

It signals a new label to the peer that sent the packet.

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Questions 145

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4A0-C01 Question 145

An LSP path is established on router R1 toward router R6. If the link between routers R4 and R6 goes down, which of the following is the quickest way for service recovery?

Options:

Router R1 updates its FIB after a new SPF calculation.

Router R1 switches to a secondary path.

Router R4 switches to a FRR path.

Router R4 switches to a standby secondary path.

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Questions 146

What are the two major differences between configuring an IES service and configuring VPWS or VPLS services? (Choose 2)

Options:

IES does not support QoS.

IES has a configurable IP-MTU

A virtual route table must be configured for an IES service.

An IES interface has an IP address assigned to it.

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Questions 147

Which of the following about an LSP protected with one-to-one FRR is TRUE?

Options:

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

The LSP is limited to node protection.

A single protection tunnel is used for all LSPs with the same path.

A detour protection tunnel is created for the LSP.

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Questions 148

An Alcatel-Lucent 7750 SR label switches a packet it receives. The packet has an outer label TTL of 250 and an inner label TTL of 251. Which of the following is TRUE?

Options:

The outer label TTL will be 249 and the inner label TTL will be 250.

The outer label TTL will be 249 and the inner label TTL will be 251.

The outer label TTL will be 251 and the inner label TTL will be 251.

The outer label TTL will be 251 and the inner label TTL will be 252.

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Questions 149

Which of the following about MPLS fast reroute is TRUE?

Options:

Fast reroute is used when redundant links are not available.

Fast reroute provides path protection close to the failure point.

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

Fast reroute protects both primary and secondary paths.

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Questions 150

What distinguishes a VPLS service from a VPWS service?

Options:

VPLS supports point-to-point connections.

VPLS supports multipoint-to-multipoint connections

VPLS supports a distributed service

VPLS supports a local service on a single node.

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Questions 151

Which of the following statements best describes the flooding of traffic on a PE when traffic is received on a spoke SDP?

Options:

Traffic is flooded to all SAPs in the service.

Traffic is flooded to all SAPs and spoke SDPs in the service.

Traffic is flooded to all SAPs and mesh SDPs in the service.

Traffic is flooded to all SAPs, spoke SDPs, and mesh SDPs in the service

The traffic is not flooded.

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Questions 152

Which of the following are the default settings for the Alcatel-Lucent 7750 SR when using LDP?

Options:

Per-platform label space, conservative retention mode

Per-interface label space, conservative retention mode

Per-platform label space, liberal retention mode

Per-interface label space, liberal retention mode

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Questions 153

To enable the LDP-over-RSVP feature, which of the following configurations is NOT required on an Alcatel-Lucent 7750 SR?

Options:

Enable the Idp-over-rsvp feature on all PEs and ABRs along the LSP tunnel.

Configure Link-LDP sessions between each PE-ABR and ABR-ABR pair.

Configure RSVP-TE LSPs in each area between each PE-ABR and ABR-ABR pair.

Configure T-LDP sessions with the tunneling option.

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Questions 154

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4A0-C01 Question 154

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:

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

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

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

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

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Questions 155

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4A0-C01 Question 155

Router R2 advertises an OSPF summary route 10.10.10.0/24 into Area 1. Router R3 receives labels for individual FECs 10.10.10.2/32 and 10.10.10.4/32. These two FECs are installed in router R3's LIB but not in the LFIB. What needs to be done on router R3 to install these labels into its LFIB?

Options:

Disable route summarization on router R3.

Enable LDP aggregate prefix match.

Create an import policy to accept 10.10.10.2/32 and 10.10.10.4/32.

Disable LDP exact match on 10.10.10.2/32 and 10.10.10.4/32.

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Questions 156

Which tree in the CLI would you need to be in to add a QoS policy to a SAP?

Options:

config>router#

config>qos#

config>port#

config>service#

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Questions 157

Which mode does the following statement describe? An LSR will advertise a label mapping immediately, without waiting for a label mapping from the FEC's next-hop.

Options:

Liberal label retention mode

Conservative label retention mode

Ordered control mode

Independent control mode

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Questions 158

Which of the following encapsulation types on an Ethernet port support the provisioning of multiple SAPs? (Choose 2)

Options:

Dot1Q

Q-in-Q

ATM

NULL

Nil

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Questions 159

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

Options:

Conservative label retention

Liberal label retention

Downstream on demand

Downstream unsolicited

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Questions 160

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4A0-C01 Question 160

An LSP's primary path takes R1-R3-R5-R6. Its fully loose secondary path is configured for SRLG. All links are of equal cost. Which path will the secondary path take?