Free Practice Questions for Nokia 4A0-104 Exam

Question 1

Which of the following about SAPs is FALSE?

AA SAP can be associated with more than one service.

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

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

DA SAP can only be created on a port configured as 'access'.

Correct Answer: A. A SAP can be associated with more than one service.

Question 2

Click the exhibit.

Based on the output from PE router R1 about VPRN 100, by which protocol was 192.168.10.0/24 learned?

ABGP

BMP-BGP

CLDP

DMPLS

Correct Answer: A. BGP

Explanation:

Topic 4, Volume D

Question 3

Which of the following about VPRN route targets is FALSE?

AThey are used to identify the VRF table for a prefix at the receiving PE.

BThey are used by VPRNs to control the distribution of VPN routing information.

CThey are distributed to all PEs and CEs that are part of the VPRN.

DThey are distributed to PEs to identify the VRF table that a VPN-IPv4 prefix is associated with.

Correct Answer: C. They are distributed to all PEs and CEs that are part of the VPRN.

Question 4

Which of the following statements is FALSE about the VPN label?

AThe VPN label is signaled between PE devices using MP-BGP.

BThe VPN label is swapped at each P router as a packet crosses the service provider network.

CThe VPN label is also known as the inner label or service label.

DThe VPN label indicates which VPRN a packet should be sent to once it reaches the egress PE.

EAll of the above

FOnly C and D.

Correct Answer: B. The VPN label is swapped at each P router as a packet crosses the service provider network.

Question 5

Which of the following about route distinguishes on the Nokia 7750 SR is TRUE?

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

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

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

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

Correct Answer: A. Route distinguishes are used to ensure that VPRN IP prefixes are globally unique.

Question 6

What Nokia 7750 SR OAM tool can be used to verify the end-to-end connectivity of a service?

ASdp-ping

BIsp-ping

CSvc-ping

DSdp-mtu

Correct Answer: C. Svc-ping

Question 7

Which of the following about the VPRN data plane is TRUE?

AA packet receives a service label and a transport label at the ingress PE.

BA packet has its service label swapped at each P router.

CThe egress PE pops the service label, and the transport label is forwarded.

DThe service label is popped by the remote CE.

Correct Answer: A. A packet receives a service label and a transport label at the ingress PE.

Question 8

On an Nokia 7750 SR, which of the following about IES interfaces is FALSE?

AAn IES can only have one interface.

BAn IES interface can have an SDP or a SAP.

CAn IES can perform fragmentation.

DAn IES must have an IP address assigned to it.

Correct Answer: A. An IES can only have one interface.

Question 9

Which of the following SAPs will forward tagged frames with an outer VLAN tag of 200? (Choose 3)

Asap 1/1/1

Bsap 1/1/1:*

Csap 1/1/1:*.0

Dsap 1/1/1:0*

Esap 1/1/1:200.*

Fsap 1/1/1:300:200

Correct Answer: A. sap 1/1/1; B. sap 1/1/1:*; E. sap 1/1/1:200.*

Question 10

Which of the following about IES is FALSE?

AAn IES has a configurable VC MTU.

BAn IES interface has an IP address assigned to it.

CIES supports QoS.

DAn IES requires a spoke SDP.

Correct Answer: D. An IES requires a spoke SDP.

Question 11

Which VPWS service would be used to create a point-to-point Frame Relay service?

AEpipe

BApipe

CFpipe

DIpipe

ECpipe

Correct Answer: C. Fpipe

Question 12

By default, what does an Nokia 7750 SR do to support VPLS services for different customers?

ADedicates a separate port for each customer.

BPerforms ARP look-ups for each service.

CMaintains a different IP routing table for each service.

DMaintains a different MAC Forwarding Database for each service.

Correct Answer: D. Maintains a different MAC Forwarding Database for each service.

Question 13

On an Nokia 7750 SR, which of the following statements about the default advertisement of VRF routes is true?

AAll routes in the VRF are advertised to the PEs and CEs.

BNo routes in the VRF are advertised to the PEs or to the CEs.

CAll routes in the VRF are advertised to the PEs, but not to the CEs.

DAll routes in the VRF are advertised to the CEs, but not to the PEs.

Correct Answer: C. All routes in the VRF are advertised to the PEs, but not to the CEs.

Question 14

A VPLS receives a frame with the single VLAN tag 35 on the Q-in-Q SAP 1/1/1:35.*. Which of the following describes default Nokia 7750 SR behavior?

AThe frame is dropped.

BThe VLAN tag is removed, and the frame is transported over the network.

CThe VLAN tag is kept, and the frame is transported over the network.

DThe VLAN tag is kept, a VLAN of 0 is added, and the frame is transported over the network.

Correct Answer: B. The VLAN tag is removed, and the frame is transported over the network.

Question 15

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?

A3

B4

C6

D12

Correct Answer: C. 6