Nokia 4A0-C01 Exam Practice Questions Answers

Nokia NRS II Composite Exam Questions and Answers

Question 1

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

Options:

4096

None. This encapsulation is not supported.

The number is limited only by the capacity of the router

Question 2

Click on the exhibit button below.

If CE1 and PE1 use BGP to exchange routing information and CE2 and PE2 use static routing to forward traffic to and from the VPRN, which of the following statements is considered TRUE?

Options:

An export policy is required on PE1 to advertise routes to CE1.

An export policy is not required on PE2 to advertise routes to CE2.

An export policy is not required to advertise routes between PE routers

All of the above statements are true

All of the above statements are false

Question 3

Which of the following about RSVP-TE LSP configuration in a Alcatel-Lucent 7750 SR is TRUE?

Options:

LSPs must always terminate on a system ID.

MPLS and RSVP must be enabled on all LSRs.

CSPF must be enabled.

Path definitions must include at least one hop entry.

Question 4

Click on the exhibit.

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.

Question 5

Click on the exhibit.

An LSP traverses the path R1-R2-R3-R6 and facility fast reroute is enabled. If the protected LSP carries one transport label and one service label, how many labels will be on the bypass tunnel if router R2 fails?

Options:

Question 6

What MPLS function should be performed by a router that receives a data packet with an MPLS label value of 0?

Options:

Push an additional label onto the label stack.

Pop the label.

Swap the label.

Pop the label and push an additional label onto the label stack.

Question 7

Which of the following commands is used to create a new Epipe service?

Options:

configure epipe service-id customer customer-id create

configure service epipe service-id customer customer-id create

configure epipe service-id create

configure epipe service-id customer customer-id create

configure epipe service service-id customer customer-id create

Question 8

Which of the following is NOT required to configure an Alcatel-Lucent 7750 SR as a PE router running 6PE?

Options:

Configure BGP with the IPv6 address family.

Configure BGP to add IPv6 Explicit Null labels.

Configure a route policy to export IPv6 routes into BGP.

Configure the nexthop core router as a BGP peer.

Question 9

Click on the exhibit.

An LSP traverses R1-R2-R3-R6 and one-to-one fast reroute is enabled. If the protected LSP transports two labels, and router R2 has failed, how many labels will be on the detour path?

Options:

Question 10

Click on the exhibit button below.

Assuming the customer only needs to monitor traffic from PE3 to the customer site, what two items are missing in the configuration of PE5, the Alcatel-Lucent 7750 Service Router in the Head Office? (Assume that the IP/MPLS network structure between the local and remote PEs is in place.)

Options:

The mirror destination configuration on PE5 is missing the "remote-source" command.

There needs to be a mirror source configuration on PE5 with the "remote-source" command.

This is not possible since the protocol analyzer is located at the Central Office. It needs to be at the customer site.

There needs to be a configuration command to put sap 1/1/3 on the mirror destination of PE5.

There needs to be a configuration command to put sap 1/1/3 on the mirror source of PE5

Question 11

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

Options:

sap 1/1/1

sap 1/1/1:*

sap 1/1/1:*.0

sap 1/1/1:0*

sap 1/1/1:200.*

sap 1/1/1:300:200

Question 12

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

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.

Question 13

Which of the following LDP message categories is UDP-based?

Options:

Notification

Session

Discovery

Question 14

Which of the following about label modes on the Alcatel-Lucent 7750 SR is FALSE?

Options:

RSVP uses downstream on demand label distribution mode.

LDP uses conservative label retention mode.

LDP advertises label mappings to all peers for which it might be a next-hop for a given FEC.

RSVP distributes a label mapping for a FEC when it has been requested to do so.

Question 15

Which of the following describes how a router sets the destination IP address for an RSVP RESV message?

Options:

It sets the address to the system address of the head-end router.

It sets the address to the next upstream hop from the ERO.

It sets the address to the next upstream hop from the PSB.

It sets the address to the next upstream hop from the RRO.

Question 16

Click on the exhibit.

If the primary path goes down, which secondary LSP path will the head-end router select first?

Options:

Secondary_Path-1

Secondary_Path-2

Secondary_Path-3

Secondary_Path-4

Question 17

Which of the following is NOT a characteristic of MPLS?

Options:

It provides the ability to establish connection oriented paths over a connectionless IP network.

It provides a mechanism to engineer network traffic patterns independently of IP routing tables.

It will work over most physical layer protocols.

It can use GRE tunnels to transport data from many different protocols over an IP network.

Question 18

When a physical port is configured for null encapsulation, many SAPs can be configured using that port.

Options:

TRUE

FALSE

Question 19

Fill in the blanks: A ________device has all interfaces inside the provider domain, and a _______ device has at least one interface outside the provider domain.

Options:

PE, P

P, PE

PE, CE

CE, PE

CE, P

Question 20

Click on the exhibit.

LSP " to R8-5 " requests fast reroute protection. What could be done to remove the Failure Code shown?

Options:

The LSP must be enabled with CSPF on the head-end router.

Fast reroute must be enabled on the downstream routers.

A mixture of strict and loose hops must be defined in the primary path.

CSPF and fast reroute must be enabled on all downstream routers.

Question 21

Which of the following about the RSVP-TE Hello protocol is FALSE?

Options:

The Hello protocol can speed up convergence without reducing refresh time.

Hello messages are sent after at least one RSVP session is active on the interface.

An interface with multiple RSVP sessions sends Hello messages for each session.

An RSVP neighbor is declared down if Hello messages are not received within the Hello timeout.

Question 22

Which of the following regarding label population is TRUE?

Options:

Selected labels from the FIB are populated to the LFIB.

Selected labels from the RIB are populated to the FIB.

Selected labels from the LIB are populated to the FIB.

Selected labels from the LIB are populated to the LFIB.

Question 23

3 Epipe services and 2 VPLS services have been configured between two PE routers. How many service labels will be signaled in total?

Options:

Question 24

Which of the following best describes a VPWS?

Options:

Layer 3 direct Internet access service.

Layer 2 point-to-point service.

Layer 2 multipoint-to-multipoint service.

Layer 3 IP multipoint-to-multipoint VPN service.

Question 25

When provisioning a spoke-SDP on an Epipe, what MUST match on both ends of the service?

Options:

Service ID

Customer ID

SAPID

VC-ID

SDPID

Question 26

Click on the exhibit.

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

Options:

The Standby with the highest next-hop IP.

The first Standby in the list.

The Standby with the longest uptime.

The Standby with the lowest next-hop IP.

Question 27

Click on the exhibit.

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

Options:

10.32.1.2

10.1.4.78

10.48.1.1

10.1.2.2

Question 28

An LSP is configured with one-to-one FRR and node protection on a Alcatel-Lucent 7750 SR. Which of the following is FALSE?

Options:

Each PLR signals a protection tunnel that avoids the downstream node.

A single protection tunnel can protect all LSPs that go through the same hop.

A link protection tunnel is signaled if a node protection tunnel cannot be established.

Protection tunnels used in this LSP are also detour tunnels.

Question 29

How does a DMP inform the downstream routers that it has merged detour tunnels?

Options:

The DMP sends the DMP_Object in each detour's PATH messages.

The DMP summarizes PATH messages, giving each detour its own MSGJD.

The DMP identifies itself as the previous hop in each detour's PATH message.

The DMP sends a single PATH message containing the merged DETOUR_Objects.

Question 30

The terms "customer" and "service" are used synonymously when describing a service implementation on the Alcatel-Lucent 7750 SR.

Options:

TRUE

FALSE

Question 31

What command syntax would be used to create a new IES service with a service id of 5 and a customer id of 1000?

Options:

configure ies 5 customer 1000 create

configure router ies 5 customer 1000 create

configure service ies 5 customer 1000 create

configure router ies 5 customer 1000

Question 32

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.

Question 33

What acts as the tie breaker on an Alcatel-Lucent 7750 SR if the priorities are the same when IS-IS is electing a DIS?

Options:

The system ID

The loopback address

The sequence number of the hello packet

The device that first initiated communication becomes the DIS

Question 34

Which of the following is NOT a characteristic of RIPv1?:

Options:

30 second network updates

Classless routing

Broadcast advertisement

Poison Reverse

Question 35

What is the protocol number for OSPF in the IP header?

Options:

OSPF uses TCP, so the protocol number is 6.

OSPF uses UDP, so the protocol number is 17.

OSPF does not use IP.

OSPF has its own protocol number of 89.

Question 36

How many databases does a Link State routing protocol use?

Options:

One

Two

Three

Four

Question 37

An OSPF ASBR must have at least one interface in the backbone area (area 0)

Options:

True

False

Question 38

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

Options:

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

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

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

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

Question 39

What is the source IP address in an OSPF update?

Options:

224.0.0.5

224.0.0.6

The unicast IP address of the interface the update is sent on

The system address of the router.

Question 40

Click the exhibit button.

Given the topology and the show commands, and assuming that router R2 advertises all of its loopbacks into OSPF, what is the correct router R1 configuration?

Options:

Option A

Option B

Option C

Option D

Question 41

What is the default priority value used for electing the DR on an Alcatel-Lucent 7750 SR running OSPF on an Ethernet?

Options:

Priority of 0

Priority of 1

Priority of 64

Priority of 255

Question 42

What are the three databases maintained by a Link State Protocol?

Options:

Neighbor, adjacency, route table

Neighbor, topology, forwarding

Topology, routing, forwarding

There are only two databases: adjacency and topology

Question 43

If routers R1 and R2 have a Level 1 and Level 2 IS-IS adjacency, which of the following statements is true? Choose two answers.

Options:

Routers R1 and R2 are in different areas.

Routers R1 and R2 are in the same area.

Routers R1 and R2 will send a Level 1 Hello PDU and Level 2 Hello PDU, if the interface type between them is point-to-point.

Routers R1 and R2 will send a Level 1 Hello PDU and Level 2 Hello PDU, if the interface type between them is broadcast.

Routers R1 and R2 will send a Level 1/2 Hello PDU if the interface type between them is broadcast.

Question 44

The Alcatel-Lucent 7750 SR supports which two of the OSPF area types below?

Options:

Not So Stubby Areas

Level 1 Areas

Stub Areas

Partially Stubby Areas

Question 45

Which of the following statements apply to link state protocol behavior? Choose three answers.

Options:

Routers broadcast the entire route table to all neighbors.

Information about directly connected links is sent to all neighbors.

An adjacency database is maintained by each router.

The sequence number for an update is incremented as it is flooded from router to router.

The topological database is the same for all routers in a single area.

Question 46

Which of the following statements regarding the IS-IS CSNP is false?

Options:

CSNPs are used to maintain consistency in the link state database.

CSNPs are advertised before an adjacency is formed with another router.

There are two types of CSNPs: Level 1 and Level 2.

CSNPs are advertised after an adjacency is formed with another router.

Question 47

Click the exhibit button.

A static route is created on router R1 "using the "static-route 0.0.0.0/0 next-hop 10.3.3.2" command. What command can be used to test the static route on an Alcatel-Lucent 7750 SR?

Options:

ping static 10.5.5.5

ping static 0.0.0.0/0

ping 10.5.5.5

ping 0.0.0.0

Question 48

In an OSPF Hello packet what fields must match all neighbor routers on the segment? (Choose 3)

Options:

Area ID

Hello and Dead Intervals

Stub flag

DR and BDR addresses

The list of neighbors

Question 49

An Alcatel-Lucent 7750 SR receives a route via an IS-IS LSP with internal reach ability, and receives the same route via an OSPF type 5 LSA. If al protocol preferences are default, which route will be installed in the route table?

Options:

The route learned via IS-IS will be installed.

The route learned via the OSPF type 5 LSA will be installed.

Both routes will be installed, if ECMP is enabled.

Both routes will be installed, regardless of whether ECMP is enabled.

Question 50

Which of the following correctly lists the 5 OSPF packet types?

Options:

Hello, link state update, link state packet, link State acknowledgement, database description.

Link state update, link state refresh, link state acknowledgement, database description, notification.

Hello, link state refresh, link state update, link state acknowledgement, link state authentication.

Hello, link state update, link state request, link state acknowledgement, database description.

Question 51

Which of the following statements best describes an OSPF type 3 LSA?

Options:

An OSPF type 3 LSA is an intra-area LSA, generated by the ABR only when route summarization is configured.

An OSPF type 3 LSA is an inter-area LSA, generated by the ABR only when route summarization is configured.

An OSPF type 3 LSA is an inter-area LSA, generated by an ASBR to describe external routes.

An OSPF type 3 LSA is an inter-area LSA, generated by the ABR to describe a route to neighbors outside the area.

Question 52

In an IP datagram, which of the following fields identifies the receiving application?

Options:

The protocol field of the transport layer header.

The port field of the transport layer header.

The protocol field of the network layer header.

The port field of the network layer address.

Question 53

Which of the following conditions will prevent an OSPF adjacency from reaching the full state? Choose three answers.

Options:

MTU mismatch

Incorrect subnet mask

System interface not included in OSPF

Area ID not the same

Different metric set on each end of the link

Router ID not defined

Question 54

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

Options:

The router must receive an acknowledgment

The router must receive a Hello

The router must receive a new sequence number

The router must receive a Link State Packet

Question 55

What is wrong with the following filter configuration from an Alcatel-Lucent 7750 SR?

RTR-B# configure filter

RTR-B>config>filter# ip-filter 1 create

RTR-B>config>filter>ip-filter$ entry 1 create

RTR-B>config>filter>ip-filter>entry$ match src-ip 172.2.0.0/16

RTR-B>config>filter>ip-filter>entry# action drop

RTR-B# configure router interface toRTR-A

RTR-B>config>router>if# egress

RTR-B>config>router>if>egress# filter ip 1

Options:

There is nothing wrong with this filter

The filter should be applied to the ingress and not the egress.

The mask cannot be a "/" value, it must be in dotted decimal.

All traffic is being blocked

Question 56

Click the exhibit button.

If router R2 redistributes the IS-IS route to 192.168.3.0/24 into OSPF, router R3 preference of these two routes? Choose two answers.

Options:

The OSPF internal preference

The IS-IS Level 1 internal preference

The IS-IS Level 2 internal preference

The OSPF external preference

The IS-IS Level 2 external preference

The IS-IS Level 1 external preference

Question 57

Click the exhibit button.

In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. How many type 4 LSAs will be present in the network?

Options:

One.

One for each of the routers in area 0

One for each of the external routes exported by router R1.

Type 4 LSAs are not generated in this network topology.

Question 58

Graceful Restart is supported by what IGPs?

Options:

RIPv1 and RIPv2

OSPF

IS-IS

BGP

Question 59

Click the exhibit button.

Router 2 advertises the network 192.168.3.0/24 to router R1 via IS-IS.

How can router R1 ensure that it discards the route?

Options:

Use a prefix list on router R1 to discard all ingress IS-IS routes.

Use an export policy and prefix list on router R1.

Use an import policy and a prefix list on router R1.

This is not possible because IS-IS cannot use import policies.

Question 60

Which of the following TLV fields is included in an IS-IS Hello packet?

Options:

Area addresses TLV

Intermediate system neighbors

TLV Authentication information TLV

Intermediate system neighbors

TLV Area addresses

TLV LSP entries TLV

The IP internal reachability information

TLV Area Addresses

TLV Authentication Information TLV

The IP external reachability information

TLV Area addresses

TLV Intermediate system neighbors TLV

Question 61

When redistributing OSPF into RIP V2 what must be taken into consideration for the redistribution to take place?

Options:

The metric must be set accordingly for RIP

The subnet mask must be removed from the OSPF route

You must divide the cost of the OSPF route by three

The router must be configured as an ASBR

Question 62

There is an IP host with IP address 10.2.3.1. A static route is created, using the "configure router static-route 10.2.3.0/24 next-hop 10.1.2.1" command. What is the correct traceroute command to test this static route on an Alcatel-Lucent 7750 SR?

Options:

traceroute 10.2.3.1

traceroute 10.2.3.1 next-hop 10.1.2.1

traceroute next-hop 10.1.2.1

traceroute does not work on the Alcatel-Lucent 7750 SR.

traceroute 10.1.2.1

Question 63

Which of the following statements regarding the election of the designated router (DR) by OSPF routers are true? (Choose two)

Options:

The router with the lowest priority is the DR.

The router with the highest priority is the DR.

If priorities are the same, the DR is chosen based on the lowest RID.

If priorities are the same, the DR is chosen based on the highest RID.

Question 64

Which of the LSA types stay within an OSPF area and are not exported outside of the area? (Choose all that apply)

Options:

Router LSA

Network LSA

Summary Network LSA

Summary Router LSA

Question 65

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

Options:

Sdp-ping

Isp-ping

Svc-ping

Sdp-mtu

Question 66

Which of the following about ADSPEC is FALSE?

Options:

ADSPEC sets an SDP's MTU to the smallest MTU value found along the LSP path.

RSVP must be enabled on all MPLS routers of a path to use ADSPEC.

ADSPEC can automatically adjust the service MTU.

ADSPEC can be enabled on individual LSPs.

Question 67

Click the exhibit.

PE1 and PE2 are Alcatel-Lucent 7750 SRs. What needs to be added to PE1's configuration to mirror traffic between PE2 and the customer site?

Options:

A "remote-source" needs to be added to the mirror destination on PEL

A mirror source needs to be added to PE1 with a "remote-source".

This is not possible since the protocol analyzer is located at the Central Office. It needs to be at the customer site.

A mirror source with SAP 1/1/2 needs to be added on PEL

Question 68

What happens by default on an Alcatel-Lucent 7750 SR when a VPLS accepts a tagged frame at the ingress SAP 1/1/1:100?

Options:

The FCS is verified and kept in the customer frame. The VLAN tag is kept and transported over the network.

The FCS is verified and kept in the customer frame. The VLAN tag is removed for transport over the network.

The FCS is verified and removed from the frame. The VLAN tag is kept for transport over the network.

The FCS is verified and removed from the frame. The VLAN tag is removed for transport over the network.

Question 69

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

Options:

Isp-trace

Idp-trace

Sdp-ping

Svc-ping

Ping

Question 70

Click the exhibit.

PE1 and PE2 are Alcatel-Lucent 7750 SRs. Which of the following is the missing configuration required on PE2 to complete the mirror?

Options:

Option A

Option B

Option C

Option D

Question 71

How many service labels must be signaled to bring up a fully-meshed VPLS among five PE routers?

Options:

Question 72

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

Options:

Dedicates a separate port for each customer.

Performs ARP look-ups for each service.

Maintains a different IP routing table for each service.

Maintains a different MAC Forwarding Database for each service.

Question 73

Click the exhibit. This output is from router R4. Service 333 is a VPLS. Why might the peer 10.10.10.1 have the same value for IngLbl and EgrLbl?

Options:

The labels are of local significance only, so other routers can use the same value.

10.10.10.1 has yet to send its own unique label.

Router R4 is using the same tunnel to send and receive to 10.10.10.1.

The service on 10.10.10.1 is down, so it is rejecting packets.

Question 74

A customer requests that their Layer 2 Ethernet service be configured to forward frames up to 1500 bytes. The service provider is using MPLS encapsulation (without RSVP-TE fast-reroute) on their IP/MPLS network. What is the minimum MTU setting for the network ports?

Options:

1512

1522

1536

1542

Question 75

Which of the following about the Alcatel-Lucent 7750 SR's sdp-ping utility is FALSE?

Options:

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

It tests the reachability of hosts that are using an SDP.

It tests the reachability of the far-end IP address of an SDP through its tunnel.

It can be used by specifying only an SDP ID.

Question 76

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

Options:

A-pipe

C-pipe

E-pipe

F-pipe

Question 77

Which of the following commands is used to enable an E-pipe service?

Options:

config>service= epipe enable

config>service~ vpws enable

config>service= no shutdown

config>port= no shutdown

config>service= epipe no shutdown

Question 78

Click the exhibit.

Both clips of output are from router R4. The show service command indicates that an SDP is down. What might be the cause?

Options:

The mesh SDP on router R4 has been shutdown.

The mesh SDP on 10.10.10.1 has been shutdown.

The service MTU on 10.10.10.1 has been set to a different value.

The IngLbl and EgrLbl that router R4 has for 10.10.10.1 are identical.

Question 79

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?

Options:

LDP

BGP

MP-BGP

MPLS

Question 80

Which of the following about VPRN labels is FALSE?

Options:

The outer label allows traffic to transit across the MPLS network.

The inner label identifies the VPRN service.

MP-BGP is used to signal VPRN labels.

The VPRN service label contains the customer's IP address.

Question 81

On an Alcatel-Lucent 7750 SR, which of the following about a VPLS is FALSE?

Options:

By default, the VC ID on the mesh SDPs of a VPLS are set to the service ID.

A VPLS appears to the customer as a direct Ethernet connection.

Mesh SDPs are used for VPLSes to avoid loops.

By default, T-LDP is used for signaling service labels.

Question 82

On an Alcatel-Lucent 7750 SR, the OAM command 'svc-ping' can be used with options bcal-sdp' and 'remote-sdp'. Which of the following is TRUE?

Options:

iocal-sdp' and 'remote-sdp' indicate that all services using these SDPs are pinged.

'Iocal-sdp' and remote-sdp' indicate that pings are initiated from both local and remote routers.

Both 'Iocal-sdp' and 'remote-sdp' take parameters to specify which SDPs are used for the test.

'Iocal-sdp' indicates that the ping is sent in-band, and remote-sdp' indicates the return ping is in-band.

Question 83

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

Options:

A VPLS service does not use an FDB.

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

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

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

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

Question 84

Which of the following about 6VPE is FALSE?

Options:

To advertise VPN-IPv4 and VPN-IFV6 routes, two MP-BGP sessions are required.

PE routers must support both IPv4 and IPv6 addresses; customer routers can use either one.

MP-BGP is used to advertise IPv6 prefixes and the associated VPRN labels.

The provider core routers are IPv6-unaware.

Question 85

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

Options:

vc-type ether

vc-type vlan

vc-type dotlq

vc-type null

Question 86

Click the exhibit.

The CEs use BGP and export policies to advertise their local prefixes with the VPRN on their PEs. If the VPRN is functioning properly, which of the following commands will succeed when performed on router R1?

Options:

"ping 192.168.20.1"

"oam vprn-ping 100 source 192.168.10.1 destination 192.168.20.1"

"oam vprn-ping 100 source 192.168.20.1 destination 192.168.10.1"

"ping 10.10.10.6" (router R6's system IP)

Question 87

Click the exhibit.

E-pipe 100 is using an SDP (4) with an LSP that uses the path shown (PE1-PE2-PE3-PE4). Which of the following is the expected output from the OAM command?

Options:

Option A

Option B

Option C

Option D

Question 88

Which of the following about VPLS MAC learning is TRUE?

Options:

Mesh SDPs assist MAC learning by flooding traffic to other mesh SDPs.

A PE keeps a single FDB for all VPLSes it has.

Frames received on a SAP that are broadcast, multicast or unknown are flooded.

The FDB only stores the MAC addresses of remote sites.

Question 89

An IPv4 MPLS provider network is being configured for 6VPE. BGP is being used for the PE-CE protocol to exchange IPv6 routes. Which of the following is FALSE?

Options:

MP-BGP in the provider network needs to support the VPN-IPv6 address family.

PE routers must be configured to run MP-BGP.

PE-to-CE BGP sessions need to be configured to support IPv6.

The provider network core must be configured to support IPv6.

Question 90

On the Alcatel-Lucent 7750 SR, which of the following statements about MP-BGP used for a VPRN is TRUE?

Options:

Routes from different customers with the same IPv4 address prefix are treated as equivalent by MP-BGP.

MP-BGP will advertise routes to other BGP sessions on the same PE without the need of policies.

The multi-protocol nature of MP-BGP allows VPRN routes to be converted into IPv4 routes in the provider core network.

MP-BGP is an enhanced version of BGP that can carry customer route prefixes for multiple VPRNs.

Question 91

What is the best approach of making MTUs match between a VPLS and a spoke IES in order to bring up the service?

Options:

Change the service MTU of the VPLS to match the IES.

Set the ip-mtu of the IES service to match the service MTU of the VPLS service.

Change the MTU of the SDP attached to the VPLS to match the service MTU of the VPLS.

Set the DNF flag on the IES service.

Question 92

Click the exhibit.

An operator at PE1 wants to analyze the traffic between CE1 and PE1 on SAP 1/1/3, On an Alcatel-Lucent 7750 SR, which of the following is NOT required as part of the configuration?

Options:

A mirror source with a defined source type.

A mirror source defined with an SDP destination.

A mirror destination with a SAP defined.

A mirror destination and a mirror source with the same service ID.

Question 93

How many service labels must be signaled to bring up a fully-meshed VPLS among three PE routers?

Options:

Question 94

Which of the following is TRUE when a service uses a GRE transport tunnel?

Options:

The service takes a route determined by the IGP.

The tunnel does not use a service label.

The service label is swapped at each hop in the transport network.

The tunnel is bidirectional and only requires configuration at one end of the service.

Question 95

Which protocol is used to signal the inner label for a L2-VPN service?

Options:

RSVP

IPCP

TLDP

PPP

Either RSVP or LDP

M-BGP

Question 96

Which of the following MUST be identical for a service between two PEs?

Options:

Customer ID

SDP ID

Service ID

VC ID

Question 97

Click on the exhibit.

Router R2 uses OSPF to advertise the network 192.168.3.0/24 to router R1. A route policy has been configured to reject the route on router R1.

Why doesn't the route policy work?

Options:

The prefix list "reject" should be "192.168.3.0/16 exact".

Router R1 should be configured as an OSPF "asbr".

The policy was not "committed" after creation.

Router R1 cannot reject the route because OSPF does not support import policies

Question 98

Which of the following about IS-IS level hierarchies is FALSE?

Options:

Level 2 routers interconnect the Level 1 areas.

There must be a contiguous Level 2 backbone to enable routing throughout the entire network.

Level 1 routers send packets to the nearest L1/L2 router if the destination is in a different area

Level 2 routers store the Level 1 and Level 2 topology information in a single database.

Question 99

You wish to advertise LDP labels for all local networks; which is the most effective policy statement to use?

Options:

from prefix-list direct

match local

from protocol direct

match protocol direct

from protocol local

Question 100

Click on the exhibit.

192.168.3.1 is a loopback interface on router R2 and is distributed to OSPF area 0, but the ping fails from router R3. Which of the following is a possible solution to the problem?

Options:

Add "stub no summaries" to the area 1 configuration on router R1.

Add the "originate-default-route" option in the area 1 configuration on router R1.

Add a default static route on router R3.

Include the system interface in the area 1 configuration on router R3.

Add a static route on router R3 to 192.168.3.1.

Question 101

Click on the exhibit.

What triggers convergence of the routing protocol when the link between switch 1 and switch 2 goes down?

Options:

Convergence is triggered when the adjacency between routers R1 and R2 drops as a result of hello timeouts.

Convergence is triggered when the physical interfaces between routers R1 and R2 go down.

Convergence will not be triggered because switches cannot run routing protocols between them.

Convergence is triggered when the switches notify the routers about the link-state info.

Convergence is triggered when an LSA is sent from router R1 to router R2 to indicate that the link is down.

Question 102

Router R4 originates 500 RSVP signaled LSPs with default hello and refresh timer settings If the only downstream communication fails (link is operationally UP), how long will RSVP wait before it declares the RSVP sessions down?

Options:

3000ms

9000ms

30000ms

120000ms

Question 103

Click the exhibit button.

A static route is created on router R1 using the command "static-route 0.0.0.0/0 next-hop 10.3.3.2". What command can be used to test the static route on an Alcatel-Lucent 7750 SR?

Options:

ping static 10.5.5.5

ping static 0.0.0.0/0

ping 10.5.5.5

ping 0.0.0.0

Question 104

Which part of the NSAP address is used to indicate to the end system that a packet is to be processed by the router itself?

Options:

AFI

IDI

HO-DSP

NSEL

Question 105

An Alcatel - Lucent 7750 SR receives a route from an IS-IS LSP with internal reachability, and receives the same route from an OSPF Type 5 LSA. If all protocol preferences are default, which route will be installed in the route table?

Options:

The route learned from IS-IS will be installed.

The route learned from OSPF will be installed.

Both routes will be installed.

There is not enough information to answer the question

Question 106

Click on the exhibit.

Examine the physical topology of the IS-IS network, the metrics of the links and the levels of the routers. All routers have a system address included in IS-IS.

Which of the following describes the route that router R4 will use to reach the system address of router R6?

Options:

Router R4 will have a route to router R6's system address with router R2 as the next-hop.

Router R4 will have a default route with router R2 as the next-hop.

Router R4 will have a default route with router R3 as the next-hop.

Router R4 will not have a route to router R6's system address, nor will it have a default route.

Question 107

Two IS-IS L1/L2 routers are in the same area on the same Ethernet segment. One of the routers is the DIS. How many adjacencies will be formed between them?

Options:

None

Question 108

Which of the following regarding the IS-IS PSNP is FALSE?

Options:

PSNPs are used on point-to-point links to acknowledge the receipt of an LSP.

There are three types of PSNPs: Level 1, Level 2, and Level 1/2.

A PSNP lists some of the LSPs in the router's database.

PSNPs are used by an IS-IS router to request LSP information from a neighboring router.

Question 109

Which of the following best describes the forwarding of a IPv6 packet that has a destination anycast address?

Options:

It is sent to all nodes on the local link.

It is sent to all nodes on the local network.

It is sent to all nodes that have joined the anycast group.

It is sent to the nearest node that is assigned the anycast address

It is sent to all nodes that are assigned the anycast address.

Question 110

Click on the exhibit button below.

Consider the output shown; why is the label in bold font not in use?

Options:

The router cannot do a SWAP of this label.

The label does not match the egress label for the same FEC.

The label is for a FEC for which the next-hop is the peer router

The label was signaled in error.

Question 111

Click on the exhibit button below. Assume the following:

- The protected path is R1-R2-R3-R6.

- Fast reroute one-to-one protection is enabled.

If the original LSP already has two labels, and router R2 has failed, how many labels will there be in packets on the detour path?

Options:

Question 112

Which of the following is a difference between IS-IS and OSPF?

Options:

IS-IS supports VLSM and CIDR.

IS-IS uses OSI addressing.

IS-IS supports manual summarization

IS-IS uses periodic Hello messages.

Question 113

In MPLS, how is the label range 0 ?15 used?

Options:

Static LSPs

Reserved use

Vendor proprietary use

Management LSPs

Dynamic LSPs

Question 114

Which of the following statements regarding RSVP refresh reduction are true1? (Choose two)

Options:

Message-IDs replace individual refresh messages.

Refresh reduction applies only to reservation messages.

RSVP generates a summary-refresh message for each LSP.

An LSP state change causes an incremented Message-ID.

Question 115

Which of the following statements regarding DiffServ-TE LSPs is true?

Options:

The Maximum Allocation Model (MAM) provides the most efficient bandwidth utilization model

In the Maximum Allocation Model (MAM), each CT receives dedicated bandwidth constraints.

In the Russian Doll Model (RDM), a CT2 LSP automatically preempts a CT1 LSP.

Using the Russian Doll Mode! (RDM), a CT1 LSP may use unreserved CTO bandwidth.

Question 116

Which of the following statements best describe MPLS fast reroute characteristics? (Choose two)

Options:

Fast reroute requires you to manually define detour paths.

Fast reroute provides path protection close to the failure point

Fast reroute performs automatic path calculation and signaling.

Fast reroute protects both primary and secondary paths.

Question 117

Which of the following are features of RSVP-TE? Choose three answers.

Options:

It supports IGP-based LSPs.

It supports constrained path LSPs.

It does not support loose explicit path LSPs.

It is recommended for use in Traffic Engineering applications.

It cannot be used with facility backup fast reroute.

Question 118

Click on the exhibit.

What value would be expected in the state field?

Options:

Exchange

Down

2-Way

Question 119

Which of the following best describes the function of an OSPF Type 4 LSA?

Options:

A Type 4 LSA is originated by an ABR to describe a route to an ASBR to routers outside the area.

A Type 4 LSA is originated by an ASBR to describe a route to itself to routers outside the area.

A Type 4 LSA is originated by an ABR that is connected to a stub area. The LSA is injected into the backbone area to provide routing information.

A Type 4 LSA is originated by an ABR that is connected to a stub area. The LSA is injected into the stub area to provide routing information.

Question 120

Click on the exhibit button below.

Consider the output shown; what table is displayed?

Options:

RIB

FIB

LIB

LFIB

Question 121

Click on the exhibit.

What is the correct command to configure a default route on the Alcatel-Lucent 7750SR R2?

Options:

config> static-route 0.0.0.0/0 next-hop 10.1.2.2

config>router> static-route 0.0.0.0 255.255.255.255 next-hop 10.1.2.1

config>router> static-route 0.0.0.0/0 next-hop 10.1.2.2

config>router> static-route 0.0.0.0/0 next-hop 10.1.2.1

Question 122

Which of the following concerning OSPFv3 is TRUE?

Options:

OSPFv3 uses MD5 Authentication.

Router LSAs carry IPv6 prefix information.

NSSA is supported in OSPFv3.

OSPFv3 uses a 64-bit router ID.

Question 123

An OSPF adjacency is stuck in the exstart state. What is the most likely cause?

Options:

The MTU does not match on both interfaces.

OSPF is not enabled on one of the routers.

The router ID is the same on both routers.

An OSPF Hello has not been received from the neighbor.

The interfaces are configured as point-to-point on one side and broadcast on the other.

Question 124

Click on the exhibit.

What type of OSPFv3 LSA is shown?

Options:

Router LSA

Network LSA

Intra-Area Prefix LSA

Link LSA

Question 125

Click on the exhibit.

All ports in the network are operationally up and have a speed of 1Gbps. Which of the following is TRUE?

Options:

Data traffic from network 192.168.1.0/24 to 192.168.3.0/24 will be forwarded through router R2.

Data traffic from network 192.168 3.0/24 to 192.168.1.0/24 will be forwarded from router R3 directly to router R1.

The system interface of routers R1 and R3 must be included into OSPF for traffic to flow between the 192.168.1.0/24 and 192.168.3.0/24 networks.

The OSPF adjacency between router R1 and router R3 is operationally up.

Question 126

Click on the exhibit.

In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. There are no stub or NSSA areas. Which of the following regarding LSAs is TRUE?

Options:

Router R3 will advertise Type 7 LSAs to Area 0 and Area 2.

Only routers R2 and R3 receive Type 5 LSAs advertised by router R1.

Router R2 will receive Type 5 and Type 7 LSAs.

Router R7 will receive Type 5 LSAs advertised by router R1.

Question 127

Which of the following best describes the actions taken by an IS-IS router after it receives an LSP on a broadcast interface that is newer than the one in its database?

Options:

The router sends a copy of the LSP from its database to its neighbor.

The router updates its database with the LSP and floods a copy to its other neighbors.

The router updates its database with the LSP, acknowledges the LSP with a PSNP and floods a copy to its other neighbors.

The router updates its database with the LSP and acknowledges it with a PSNP.

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