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4A0-C04 Exam Dumps - Nokia NRS II Composite Exam: OSPF version

Question # 4

How are policy direction and data flow related on the Nokia 7750 SR?

A.

Import policies affect ingress data flow.

B.

Export policies affect ingress data flow.

C.

Both import and export policies affect ingress data flow.

D.

Policy direction and data flow are independent.

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Question # 5

A static route is created using the command "static-route 0.0.0.0/0 next-hop 3.3.3.1". What command could be used to test the static route on an Nokia 7750 SR?

A.

Ping static 3.3.3.1

B.

Ping static 0.0.0.0/0

C.

Ping 3.3.3.1

D.

Ping 0.0.0.0

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Question # 6

An SDP using GRE encapsulation is configured for an E-pipe service. The network port used by the SDP has an MTU of 8000. What value does the SDP path MTU have by default on an Nokia 7750 SR?

A.

7958

B.

7978

C.

8022

D.

8042

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Question # 7

Click on the exhibit button below:

Consider the following:

- Router R2 is an ABR in OSPF Areas 0 and 1.

- Router R2 advertises the aggregate prefix 10.10.10.0/24 into Area 1.

- Router R1 in Area 0 generates LDP labels for FECs 10.10.102/31 and 10.10.10.4/31

Router R3 in Area 1 places these FECs in its LIB, but it does not place them in its LFIB. What can you do on router R3 to make it populate these labels in its LFIB?

A.

Disable route summarization on router R3

B.

Enable LDP aggregate prefix match

C.

Create an import policy to accept these FECs

D.

Disable LDP exact match on the specified FECs

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Question # 8

In an OSPF Hello packet, which of the following fields must match for all neighbor routers on the segment? Choose three answers.

A.

Area ID W B.

B.

Hello and Dead intervals PC.

C.

Stub flag

D.

Checksum values

E.

The list of neighbors

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Question # 9

Click the exhibit.

Over which BGP session will router B learn the 10.1.1.0/24 prefix?

A.

The session between router A and router B.

B.

The session between router C and router B.

C.

The session between router D and router B.

D.

Router B will learn the prefix over all of the sessions, then it will choose the best route.

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Question # 10

Which of the following about the components of a distributed service on the Nokia 7750 SR is TRUE?

A.

A SAP can only be used by one service on a router.

B.

A dedicated SDP needs to be created for each service.

C.

A service is created on each site before the customer is created.

D.

SAPs must be created before a service is created.

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Question # 11

Click the exhibit.

AS 65100 is advertising 192.168.1.0/27 into BGP. Which of the following AS Paths would the prefix 192.168.1.0/27 contain when viewed on router R8?

A.

65200 (65206 65202) 65100

B.

(65206 65202)65100

C.

65250 (65206 65202) 65100

D.

65200 65100

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Question # 12

From the list below select the statements that describe the behavior of link state information aging. (Choose 2)

A.

The age for newly created link state information is set to 0 for OSPF and 1200 for IS-IS

B.

The age for newly created link state information is set to 1200 for OSPF and 0 for IS-IS

C.

The age is incremented or decremented as it is flooded from router to router and as it is held in the topological database.

D.

The age is incremented or decremented only as it is held in the topological database and not as it is flooded router to router.

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Question # 13

Click the exhibit.

AS 65540 routers are iBGP fully-meshed. Assume routers R4, R5 and R6 are configured with addpaths ipv4 send 2 receive". Which routes to 192.168.0.1/27 is router R6 expected to have in its BGP routing table?

A.

Two routes from router R4.

B.

Two routes from router R5.

C.

Two routes; one from router R4 and one from router R5.

D.

Four routes; two from router R4 and two from router R5.

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Question # 14

Click the exhibit button.

What is the command to configure a static route on the Nokia 7750 SR router R1 to reach the network behind router R2?

A.

configure router static-route 139.120.121.0/24 next-hop 138.120.199.2

B.

configure router static-route 139.120.121.0/24 next-hop 138.120.199.1

C.

configure router static-route 138.120.199.2/24 next-hop 138.120.199.1

D.

configure router static-route 139.120.121.0/24 next-hop 139.120.121.2

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Question # 15

Choose the Distance Vector Protocols from the list below:

A.

OSPF

B.

RIPv1

C.

RIPv2

D.

IS-IS

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Question # 16

Click the exhibit button.

Routers R1 „ R2, and R3 are running a classful routing protocol between them. Assuming that router R1 advertises all directly connected networks, how will these networks be represented in router R3's routing table?

A.

Router R3's routing table can only contain one of the routes, which will result in route flapping.

B.

Router R3's routing table will have one entry for 10.1.1.0/24 and one entry for 10.1.2.0/24.

C.

The networks will be represented with one entry of 10.0.0.0/8 in router R3's routing table.

D.

The networks will be represented with one entry of 10.0.0.0/24 in router R3's route table.

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Question # 17

Initially, all ports on an Nokia 7750 SR have 10Gbps bandwidth. RSVP configuration limits reservable bandwidth to 30 percent on all interfaces. An LSP is signaled reserving 1 Gbps bandwidth. How much unreserved bandwidth is left on the interface?

A.

10 Gbps

B.

7 Gbps

C.

3 Gbps

D.

2 Gbps

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Question # 18

Which of the following OSPFv3 LSAs have an AS scope?

A.

Link Local LSA

B.

Router LSA

C.

Network LSA

D.

Inter-Area Router LSA

E.

Intra-Area Prefix LSA

F.

None of the above LSAs have an AS scope.

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Question # 19

Click on the exhibit.

This policy is applied on a router as an LDP export policy and an LDP session has been established between this router and its neighboring router. In addition to the FECs learned from its neighbors, what additional FECs will appear in this router's LIB?

A.

All FECs that are in the 192.168.1.0/24 address space.

B.

Local FECs that are in the 192.168.1.0/24 address space.

C.

All FECs that are not in the 192.168.1.0/24 address space.

D.

All FECs except the local FECs that are in the 192.168.1.0/24 address space.

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Question # 20

Click the exhibit.

AS 65550 owns CIDR block 10.64.0.0/12. Router R6 advertises the aggregate 10.64.0.0/12 to AS 65541 with "as-set" enabled. Which of the following is TRUE regarding the aggregate route received by router R7?

A.

The AS Path is set to 65540, and the Atomic Aggregate flag is set.

B.

The AS Path is set to 65540 65550, and the Atomic Aggregate flag is set.

C.

The AS Path is set to 65540 65550, and the Atomic Aggregate flag is not set.

D.

The AS Path is set to 65550, and the Atomic Aggregate flag is not set.

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Question # 21

Click the exhibit.

Router R1 is a route reflector with clients R2, R5 and R6. Prefixes advertised by router R5 have a local preference of 200. Router R3 advertises the prefix 192.168.1.0/27 to routers R5 and R6.

Assuming that none of the routers in AS 65540 is configured with "advertise-external", what is the expected output of "show router bgp routes on router R1?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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Question # 22

Click on the exhibit.

An LDP tunnel is established on router R1 towards router R6. The link between routers R2 and R4 goes down. What will happen to the MPLS data traffic to router R6 IMMEDIATELY after the link goes down?

A.

MPLS data traffic will be discarded until the IGP finds a new next-hop to router R3.

B.

MPLS data traffic will be discarded unless the LDP tunnel has a standby secondary path.

C.

MPLS data traffic will not be discarded because router R1 received labels from both next-hops, routers R2 and R3.

D.

MPLS data traffic will not be discarded because of fast reroute capability on router R2.

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Question # 23

An Nokia 7750 SR is configured with an export policy to redistribute its directly-connected networks into BGP. Which of the following databases contains the routes for these networks?

A.

The routes are in the RIB-In.

B.

The routes are in the Loc-RIB.

C.

The routes are in the RIB-Out.

D.

The routes are not in any of the BGP databases.

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Question # 24

When an OSPF adjacency is stuck in the "ExchStart" state, what is the most likely cause?

A.

The MTU does not match on both interfaces

B.

OSPF is not enabled on one of the routers

C.

The Router ID is the same on both routers

D.

A OSPF Hello has not been received from the neighbor

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Question # 25

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?

A.

The frame is dropped.

B.

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

C.

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

D.

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

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Question # 26

Which of the following about VPRN route targets is FALSE?

A.

A route target is used to distinguish to which VRF table a prefix belongs.

B.

A route target appended to an IPv4 prefix produces a VPN-IPv4 prefix.

C.

Multiple route targets can be part of a single MP-BGP update.

D.

Route targets must be configured for VPRNs.

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Question # 27

Which of the following regarding BGP confederations is FALSE?

A.

The entire confederation is viewed as a single AS by an eBGP peer.

B.

Within a confederation, each member AS is considered as a stand-alone AS.

C.

Member ASs within a confederation can use route reflection.

D.

Member ASs must be fully meshed within a confederation.

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Question # 28

Click on the exhibit.

If the primary path fails, which backup LSP path will the head-end router pick first?

A.

The Standby with the highest next-hop IP.

B.

The first Standby in the list.

C.

The Standby with the longest uptime.

D.

The Standby with the lowest next-hop IP.

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Question # 29

A network consists of four PE routers. A customer requires a VPLS and has sites connected to each PE. The VPLS is fully meshed using IP/MPLS. How many SDPs must be configured on each PE?

A.

3

B.

4

C.

6

D.

8

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Question # 30

In an OSPF environment, what must a router receive after it sends out an update?

A.

The router must receive an acknowledgment

B.

The router must receive a Hello

C.

The router must receive a new sequence number

D.

The router must receive a Link State Packet

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Question # 31

What address is used when RIPv2 uses multicast to send its updates?

A.

224.0.0.5

B.

224.0.0.6

C.

224.0.0.9

D.

224.0.0.10

E.

RIPv2 does not have support for multicast

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Question # 32

Which of the following is NOT an application of MPLS?

A.

Enabling VPNs

B.

Enabling traffic engineering

C.

Enabling network security

D.

Enhancing network resiliency

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Question # 33

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

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Question # 34

Click the exhibit.

The operator at PE1 wants to analyze the traffic between CE4 and PE2. On an Nokia 7750 SR, which of the following is required as part of the configuration?

A.

Both PE1 and PE2 need a mirror source.

B.

PE2 needs a mirror source with the remote source specified.

C.

PE1 needs a mirror source with the remote source specified.

D.

Both PE1 and PE2 need a mirror destination.

E.

PE2 needs a mirror destination that specifies a SAP.

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Question # 35

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

A.

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

B.

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

C.

A route distinguisher combined with an IPv4 prefix produces a VPN-IPv4 prefix.

D.

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

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Question # 36

What are some of the characteristics of Nokia's implementation of non-stop routing? (Choose two)

A.

No protocol extensions required

B.

Only supported by OSPF and IS-IS

C.

Transparent to routing neighbors

D.

Uses Graceful Restart to inter-operate with other vendors

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Question # 37

Which of the following regarding BGP Path Identifier is FALSE?

A.

Path-ID is a four-octet identifier pre-pended to the NLRI field of a BGP update.

B.

Path-ID is an optional transitive attribute used to advertise multiple paths.

C.

Path-ID uniquely identifies each path advertised to a neighbor.

D.

A BGP speaker that re-advertises a route must generate its own Path-ID.

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Question # 38

A confederated AS is comprised of three members. One member is comprised of 4 routers, while the other two members are comprised of 3 routers each. Assuming member ASs are fully meshed and use full mesh iBGP, what is the required number of BGP sessions within the confederation?

A.

12

B.

13

C.

14

D.

15

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Question # 39

Click on the exhibit.

This LSP terminates on a system IP address. What is the system address of the destination node?

A.

10.32.1.2

B.

10.1.4.78

C.

10.48.1.1

D.

10.1.2.2

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Question # 40

On which object is ADSPEC enabled?

A.

SDP

B.

Network port

C.

LSP

D.

Service

E.

RSVP

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Question # 41

A static route is created using the command "static-route 2.3.4.0/24 next-hop 1.2.3.4". What is the correct traceroute command to test this static route on an Nokia 7750 SR?

A.

traceroute 2.3.4.1

B.

traceroute 2.3.4.0/24 next-hop 1.2.3.4

C.

traceroute next-hop 1.2.3.4

D.

traceroute does not work on the Nokia 7750 SR

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Question # 42

Click on the exhibit.

When router R1 forwards a PATH message to router R2, which of the following about the PATH message's IP header is TRUE?

A.

The options field is set to router alert.

B.

The source address is R1's egress interface address.

C.

The destination address is R2's ingress interface address.

D.

The HOP object includes R2's system address.

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Question # 43

Which of the following messages is NOT used in T-LDP operation?

A.

Hello message

B.

Init message

C.

Keepalive message

D.

Label Mapping message

E.

ACK message

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Question # 44

Which of the following concerning OSPFv3 is TRUE?

A.

OSPFv3 uses MD5 Authentication.

B.

Router LSAs carry IPv6 prefix information.

C.

NSSA is supported in OSPFv3.

D.

OSPFv3 uses a 64-bit router ID.

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