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4A0-C01 Nokia NRS II Composite Exam Free Practice Exam Questions (2025 Updated)

Prepare effectively for your Nokia 4A0-C01 Nokia NRS II Composite Exam certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.

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Total 852 questions

Which of the following about SAPs is FALSE?

A.

A SAP can be associated with more than one service.

B.

A SAP is the subscriber's point of entry to the service network.

C.

A SAP is created by specifying a physical port and an encapsulation type.

D.

A SAP can only be created on a port configured as "access".

Which of the following regarding 6VPE is FALSE?

A.

6VPE is a tunneling technology that makes use of MPLS tunnels to transport IPv6 prefixes over an IPv4 infrastructure.

B.

Customers connected to 6VPE can run IPv6 or IPv4.

C.

On a PE router, if the MP-BGP next hop is an IPv4 address, a mapped IPv6-compliant address will be used.

D.

6VPE implements its own VPN-IPv6 address family and is a replacement for MP-BGP.

Which of the following best describes how a MAC FDB is populated in a VPLS service?

A.

A VPLS service does not use a MAC FDB.

B.

The router reads the destination MAC address of frames passing through the service.

C.

The router reads the source MAC address of frames passing through the service.

D.

The router uses reverse ARP (RARP) to resolve the MAC addresses for unknown destinations.

E.

The router is programmed with MAC addresses by the network administrator.

Which of the following best describes an SDP?

A.

Acts as a logical way to direct traffic from one SAP to another on a single node.

B.

Acts as a logical way to direct traffic from one service to another on a single node.

C.

Acts as a logical way to direct traffic from one access port to another.

D.

Acts as a logical way to direct traffic from services on one router to services on another.

All services mapped to an SDP use the same transport encapsulation type (either GRE or MPLS)

A.

TRUE

B.

FALSE

Which of the following about route distinguishes on the Alcatel-Lucent 7750 SR is TRUE?

A.

Route distinguishes are used to ensure that VPRN IP prefixes are globally unique.

B.

Route distinguishes are appended to IPv4 prefixes to form IPv6 prefixes.

C.

Route distinguishes are used to determine which routes a VPRN should import.

D.

CE routes use a route distinguisher to indicate which VPRN they are associated to.

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

A.

Customer ID and SAP ID.

B.

Customer ID and Service ID.

C.

SAP ID and Service ID.

D.

SDP ID and Service ID.

E.

SDP ID and SAP ID.

F.

SDP ID and VC ID.

Click the exhibit button.

Part of a 6VPE deployment is shown. Which of the following is the correct configuration and context on router CE1 for a BGP peering session with 6VPE1?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Which of the following about VPRN VRF tables is FALSE?

A.

VRF information is advertised between PEs using MP-BGP.

B.

VRF tables are used to forward traffic to CEs.

C.

P routers use VRF tables to maintain customer-specific information.

D.

VRF tables provide isolation between customers.

Click the exhibit.

The output is from PE router R4 about VPRN service 100. How many prefixes have been learned from the MP-BGP protocol?

A.

0

B.

2

C.

3

D.

6

Consider a network that has four PE routers. If a customer wants a VPLS that has sites on only three of the PEs, how many mesh SDPs need to be configured for this service?

A.

3

B.

4

C.

6

D.

12

Click the exhibit.

Part of a 6VPE deployment is shown in this exhibit. Which of the following is the correct configuration and context on PE1 for a BGP peering session with CE1?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

A CE is connected to an IES interface. Which of the following is TRUE?

A.

The IES's interface must be an IGP peer with the CE.

B.

The IES must use an IP address that is different than the C£.

C.

The IES can only include one SAP for the CE.

D.

The IES must include a network port.

A service has a null encapsulated SAP and a vc-type vlan' SDP. What happens when the SAP receives an untagged Ethernet frame?

A.

The frame is dropped.

B.

The service ID is added as the provider VLAN tag.

C.

A VLAN tag of 0 is added as the provider VLAN tag.

D.

The frame is forwarded with no provider VLAN tag.

If the Alcatel-Lucent 7750 SR is rebooted after an "admin save'' has been performed, which of the following about mirror services is TRUE?

A.

Only the mirror source must be re-configured.

B.

Only the mirror destination must be re-configured.

C.

Both the mirror destination and mirror source must be re-configured.

D.

Neither the mirror destination nor the mirror source must be re-configured.

A SAP configured in the form of 1/1/1:0/32 would be used for which type of VPWS?

A.

A-pipe

B.

C-pipe

C.

E-pipe

D.

F-pipe

Which of the following about F-pipes is FALSE?

A.

F-pipes use SAPs in the form of port: DLCI (e.g. 1/2/3:65).

B.

To the customer, the PE appears as a native Frame Relay UNI (User Network Interface).

C.

Multiple Frame Relay circuits can be mapped to a single F-pipe service on the Alcatel-Lucent 7750 SR.

D.

The MPLS control word is required because the Frame Relay header is not encapsulated in the frame.

Which command provides a summary status of the VPLS service 100?

A.

show service id 100 base

B.

show service vpls 100

C.

show service vpls 100 summary

D.

show service vpls 100 all

E.

None of the above.

Service tunnels and transport tunnels are bidirectional and only require the operator to configure the tunnel on one router.

A.

TRUE

B.

FALSE

Click the exhibit.

The output is from PE router R1 about VPRN service 100. From which protocol did router R1 learn the prefix 192.168.20.0/24?

A.

LDP

B.

BGP

C.

MP-BGP

D.

MPLS

Which of the following about VPRN VRF tables is FALSE?

A.

Each VRF table contains routes for a single VPRN.

B.

Route targets are used to determine if a prefix belongs to a VRF.

C.

Routes in the VRF table are advertised to the core routers.

D.

VPN labels identify which VRF table should be used for a packet.

What is the minimum Ethernet physical network MTU required for a Layer 2 service on an MPLS encapsulated SDP with a service MTU of 1500?

A.

1500

B.

1508

C.

1514

D.

1522

Which utility on the Alcatel-Lucent 7750 SR can be used to investigate an MPLS path?

A.

Isp-trace

B.

Idp-trace

C.

Sdp-ping

D.

Svc-ping

E.

Ping

Choose the following components that are necessary for the configuration of a mirror service. (Choose 2)

A.

A mirror destination to indicate which ports to monitor.

B.

A mirror source to indicate which ports to monitor.

C.

A mirror destination to indicate on which sap or sdp traffic should be replicated.

D.

A mirror source to indicate on which sap or sdp traffic should be replicated

Which of the following about the Alcatel-Lucent 7750 SR sdp-ping is TRUE?

A.

It tests the IGP reachability of the far-end IP address of an SDP.

B.

It tests that the MTU settings of a service are correct.

C.

It tests in-band, uni-directional or round-trip connectivity of SDPs.

D.

It tests the reachability of hosts connected to an SDP.

Which of the following SAPs will NOT forward untagged frames?

A.

sap 1/1/1

B.

sap 1/1/1:*

C.

sap 1/1/1:0

D.

sap 1/1/1:1

Click the exhibit.

This PE is connected to an IPv4 core and is being configured to support 6VPE for a VPRN. Which of the following completes this section of the configuration?

A.

Family ipv4

B.

Family ipv6

C.

Family ipv4 ipv6

D.

Family vpn-ipv4

E.

Family vpn-ipv4 vpn-ipv6

Consider an E-pipe service configured with SAP 1/1/1:5 and SAP 1/1/1:6.7. If the SAP 1/1/1:5 accepts an ingress frame, which of the following is TRUE?

A.

The frame egresses 1/1/1:6.7 with an outer VLAN tag of 6 and inner tag of 7.

B.

The frame is dropped at the egress SAP 1/1/1:6.7.

C.

The frame egresses 1/1/1:6.7 with VLAN tag 5.

D.

The frame egresses 1/1/1:6.7 with VLAN tag 6.

A service needs to accept frames that have the following: an outer VLAN tag of 200 with an inner VLAN tag of 33; and frames that have an outer VLAN tag of 250 with an inner VLAN tag of 33. What SAP(s) need to be configured?

A.

1/1/1:200.*

B.

1/1/1:*.33

C.

1/1/1:*.*

D.

This requires two SAPs: 1/1/1:200.33 and 1/1/1:250.33

Which of the following best describes the flooding of traffic on a PE when unknown traffic is received on a SAP of a VPLS?

A.

Traffic is flooded to all SAPs in the service.

B.

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

C.

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

D.

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

E.

The traffic is not flooded.

On a dot1Q encapsulated port, frames with a VLAN tag of 0 and untagged frames are forwarded to the null SAP

A.

TRUE

B.

FALSE

On an Alcatel-Lucent 7750 SR, which vc-type will strip service delimiting tags at the ingress PE?

A.

vc-type ether

B.

vc-type vlan

C.

vc-type dotlq

D.

vc-type null

How many SAPs can be configured on a port configured with NULL encapsulation?

A.

1

B.

4096

C.

None. This encapsulation is not supported.

D.

The number is limited only by the capacity of the router

Click on the exhibit.

Which of the following is FALSE?

A.

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

B.

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

C.

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

D.

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

Which of the following best describes downstream unsolicited label distribution?

A.

An LSR may answer requests for label mappings immediately, without waiting for a label mapping from the next-hop.

B.

An LSR may advertise label mappings to all peers for which it might be a next-hop for a given FEC.

C.

An LSR propagates a label mapping downstream for a FEC, only if it has a label mapping for the FEC next-hop.

D.

An LSR will only distribute a label for a FEC when it has been requested to do so.

An ES service can have both MAC and IP filters applied to it.

A.

TRUE

B.

FALSE

Which of the following is NOT an advantage of RSVP-TE compared to LDP?

A.

RSVP-TE supports Connection Admission Control (CAC).

B.

RSVP-TE enables simplified configuration of LSPs.

C.

RSVP-TE supports path calculations that do not use IGP cost.

D.

RSVP-TE provides support for traffic protection features.

Click on the exhibit.

The partial command output from an Alcatel-Lucent 7750 SR is shown. Which of the following about this LSP path is TRUE?

A.

R4 (10.10.10.4) has established a link protection tunnel.

B.

R6 (10.10.10.6) has established a link protection tunnel.

C.

R2 (10.10.10.2) has established a node protection tunnel.

D.

R1 (10.10.10.1) has not established a node protection tunnel.

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

A.

Conservative label retention

B.

Liberal label retention

C.

Downstream on demand

D.

Downstream unsolicited

Which of the following about per-interface label space is TRUE?

A.

A single label is assigned to a FEC for all interfaces on the same router.

B.

The same label can be used to forward a packet on an LSR regardless of which egress port is used.

C.

It uses fewer label resources than a per-platform label space.

D.

A separate label is used for each interface that the FEC is advertised on.

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