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Viewing page 3 out of 13 pages
Viewing questions 41-60 out of questions
Questions # 41:

Click on the exhibit.

Question # 41

The routers have an established IS-IS L2 adjacency on which IPv4 system addresses are exchanged. An operator successfully configures multi-topology IS-IS routing so that the IPv6 system addresses are also exchanged between routers.

After IPv6 has been configured, which of the following is TRUE?

Options:
A.

Router R2 has two IS-IS-adjacencies and two LSPs.

B.

Router R2 has two IS-IS-adjacencies and four LSPs.

C.

Router R2 has two IS-IS-adjacencies and three LSPs.

D.

Router R2 has four IS-IS-adjacencies and six LSPs.

Questions # 42:

What is the common usage of the MPLS EXP bits?

Options:
A.

Each implementation can use them as they see fit.

B.

They are used to carry the Ethertype value.

C.

They are used to carry the TTL value.

D.

They are used to carry QoS classification.

E.

They are used to carry fragmentation flag information

Questions # 43:

Which of the following are functions of the MPLS control plane in a router? (Choose two)

Options:
A.

Label allocation and management.

B.

Label swapping.

C.

Pushing a label on an unlabeled packet.

D.

Label signaling.

E.

Routing lookups.

Questions # 44:

Which of the following about IS-IS is FALSE?

Options:
A.

IS-IS uses the concept of Level 1 and Level 2 routers to implement hierarchy.

B.

An IS-IS router belongs to one or more areas.

C.

All Level 2 routers belong to the same area.

D.

A Level 1 router forwards traffic to other areas through the nearest Level 1/2 router.

Questions # 45:

The destination IP address of a received unlabeled packet is successfully matched in the FIB.

Which of the following is FALSE?

Options:
A.

A POP label stack operation may be performed.

B.

The outgoing interface and next-hop address will be determined from the FIB.

C.

The packet can be forwarded as a labeled or unlabeled packet.

D.

A PUSH label stack operation may be performed.

Questions # 46:

Why does IPv6 not use ARP?

Options:
A.

The ARP functionality has been replaced by the Neighbor Discovery protocol.

B.

The ARP functionality is not needed due to the increased IPv6 address space.

C.

ICMPv6 reduced its role to connectivity checking and auto-configuration only.

D.

ICMFV6 replaced the ARP functionality with Multicast Listener Discovery (MLD).

Questions # 47:

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

Options:
A.

Fast reroute requires you to manually define detour paths.

B.

Fast reroute provides path protection close to the failure point

C.

Fast reroute performs automatic path calculation and signaling.

D.

Fast reroute protects both primary and secondary paths.

Questions # 48:

Click on the exhibit button below.

Question # 48

LSP 1's link between routers R3 and R6 has failed, and the RESV state at router R3 has timed out. Which of the following actions will router R3 initiate?

Options:
A.

Send a Path Tear message towards router R6.

B.

Send a Path Tear message towards router R1.

C.

Send a Resv Tear message toward router R6.

D.

Send a Resv Tear message toward router R1.

Questions # 49:

Click on the exhibit.

Question # 49

Based on the topology shown and the route tables of routers R3 and R4, which of the following is correct?

Options:
A.

There is no route leaking configured on router R1 or router R2.

B.

Route leaking is configured on router R1 but not on router R2.

C.

Route leaking is configured on router R2 but not on router R1.

D.

Route leaking is configured on both router R1 and router R2.

Questions # 50:

Click on the exhibit.

Question # 50

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:
A.

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

B.

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

C.

Add a default static route on router R3.

D.

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

E.

Add a static route on router R3 to 192.168.3.1.

Questions # 51:

The following are statements about fields in the Hello packet that must match in order to form an OSPF adjacency. Which statement is correct?

Options:
A.

The area ID does not have to match.

B.

The value of the E bit in the options field does not have to match.

C.

The value of the Hello interval does not have to match.

D.

The value of the network mask does not have to match.

E.

The area ID, the E bit value, the Hello interval and network mask must all match.

Questions # 52:

Click on the exhibit.

Question # 52

OSPF is operational on all links in the network diagram, all links are the same cost, and all routers are configured with an ECMP value of 4. Router R4 advertises the prefix 192.168.3.0/24 into OSPF.

How many entries for prefix 192.168.3.0/24 will be in router R5's routing table?

Options:
A.

0

B.

1

C.

2

D.

3

E.

4

Questions # 53:

An IS-IS router receives a CSNP that references an older LSP than the one in its database. What action is taken?

Options:
A.

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

B.

The router sends a PSNP to its neighbor describing the LSP in its database.

C.

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

D.

The router sends a PSNP to its neighbor to request the LSP.

Questions # 54:

Which of the following statements is true of an established LDP session?

Options:
A.

It uses a UDP connection with an arbitrary port number.

B.

It uses a UDP connection with well known port number 646.

C.

It uses a TCP connection with an arbitrary port number.

D.

It uses a TCP connection with well known port number 646.

Questions # 55:

How have Traffic Engineering extensions to IS-IS been implemented?

Options:
A.

By defining new LSAs for the IS-IS protocol.

B.

By utilizing the OSPF opaque LSAs to maintain interoperability with OSPF routing domains

C.

By defining new TE extension TLVs to the IS-IS protocol.

D.

By enabling CSPF algorithm extensions that allow link state TE to be implemented.

Questions # 56:

Click on the exhibit.

Question # 56

Router R1 distributes its globally routed address and its loopbacks into IS-IS. Routers R2 and R4 have their globally routed addresses in IS-IS.

How many routes will router R4 have in its IPv6 route table?

Options:
A.

2

B.

3

C.

4

D.

5

E.

6

F.

7

Questions # 57:

Which of the following concerning OSPFv3 is TRUE?

Options:
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.

Questions # 58:

Click on the exhibit.

Question # 58

What type of OSPFv3 LSA is shown?

Options:
A.

Router LSA

B.

Network LSA

C.

Intra-Area Prefix LSA

D.

Link LSA

Questions # 59:

When IS-IS is electing a DIS, what is used as the tie breaker on an Alcatel-Lucent 7750 SR, if the priorities are the same?

Options:
A.

The system ID

B.

The loopback address

C.

The sequence number of the Hello packet

D.

The device that first initiated communication becomes the DIS

E.

The highest interface MAC address

Questions # 60:

Which of the following conditions must a router meet for an LSP path's RSVP session to exist? Choose two answers

Options:
A.

The router must build the Path State Block (PSB).

B.

The router must build the Reservation State Block (RSB).

C.

The router must build the Session State Block (SSB)

D.

The router must send the second RESV refresh message.

E.

The router must receive the second PATH refresh message.

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