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Question # 4

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 # 5

What is the value of the protocol discriminator used to denote IS-IS protocol information?

A.

89

B.

87

C.

85

D.

83

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Question # 6

What type of OSPF router generates a type 2 LSA?

A.

Area Border Router

B.

Autonomous System Boundary Router

C.

Designated Router

D.

All routers within an OSPF area.

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Question # 7

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 # 8

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?

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

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Question # 9

What command is used on the Alcatel-Lucent 7750 SR to define the default action to be taken if a packet does not match any entry in an IP filter?

A.

config>filter# default-action XXX

B.

config>filter>ip-filter# default-action XXX

C.

config>filter# default-mode XXX

D.

config>filter>ip-filter# default-mode XXX

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Question # 10

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

A.

The router with the lowest priority is the DR.

B.

The router with the highest priority is the DR.

C.

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

D.

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

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Question # 11

Refer to the exhibit below. IS-IS IPv6 routing is configured in the network with globally routed addresses as shown. How many routes will R4 have in its IPv6 route table?

A.

1

B.

2

C.

3

D.

4

E.

6

F.

7

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Question # 12

Click the exhibit button. Assuming point-to-point links, which of the following statements is true?

A.

Routers R1 and R2 are L2 routers. Routers R3 and R4 are L1/L2 routers

B.

Routers R1, R2, and R4 are L1/L2 routers. Router R3 is an L1 router,

C.

Routers R1, R2, and R3 are L2 routers. Router R4 is an L1 router,

D.

Routers R1 and R2 are L1/L2 routers. Routers R3 and R4 are L1 routers

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Question # 13

Refer to the exhibit below.

R1 distributes its loopbacks into IS-IS and globally routed addresses are configured as shown. How many routes will R4 have in its IPv6 route table?

A.

1

B.

2

C.

3

D.

4

E.

6

F.

7

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Question # 14

On which type of IS-IS router is summarization most likely to be configured?

A.

L1 routers

B.

L2 routers

C.

L1/L2 routers

D.

L1 and L2 routers

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Question # 15

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

A.

Area addresses TLV

Intermediate system neighbors

TLV Authentication information TLV

B.

Intermediate system neighbors

TLV Area addresses

TLV LSP entries TLV

C.

The IP internal reachability information

TLV Area Addresses

TLV Authentication Information TLV

D.

The IP external reachability information

TLV Area addresses

TLV Intermediate system neighbors TLV

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Question # 16

What is another term to describe the default route for a client?

A.

Black hole

B.

Default gateway

C.

Gateway path

D.

Proxy ARP

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Question # 17

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

A.

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

B.

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

C.

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

D.

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

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Question # 18

What is the primary purpose of classless interdomain routing (CIDR)?

A.

To support classful routing protocols.

B.

To allow IP routes to be defined using any number of bits for the network portion of the address.

C.

To allow interdomain routing between an IGP and EGP such as OSPF and BGP.

D.

To simplify the allocation of IP address space by defining a fixed size for the network portion of the address for each of the address classes.

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Question # 19

Refer to the exhibit.

Assume that OSPFv3 is properly configured on all routers and that R4 advertises its system prefix into Area 0. Which of the following statements best describes how R5 learns R4's IPv6 system prefix?

A.

With a Router LSA originated by R1

B.

With a Router LSA originated by R5

C.

With a Router LSA originated by R4

D.

With an Inter-Area Prefix LSA originated by R1

E.

With an Inter-Area Prefix LSA originated by R5

F.

With an Inter-Area Prefix LSA originated by R4

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Question # 20

Click the exhibit button.

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?

A.

Add the "originate-default-route" option in the NSSA area configuration on router R3

B.

Add the "summaries" option to the NSSA area configuration on router R1

C.

Make a static route on router R1 to 192.168.3.1

D.

Make a default route on router R2

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Question # 21

Which OSPFv3 LSA advertises the location of an ASBR?

A.

Intra-Area Prefix LSA

B.

Inter-Area Prefix LSA

C.

Inter-Area Router LSA

D.

AS External LSA

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Question # 22

Which OSPFv3 LSA type is similar in function to the OSPFv2 Type 3 LSA?

A.

Link

B.

Intra-Area Prefix

C.

Inter-Area Prefix

D.

Inter-Area Router

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Question # 23

Which of the following about Type 4 LSAs is FALSE?

A.

A Type 4 LSA is not generated in a single area AS.

B.

A Type 4 LSA is generated by the ABRs of the area that contains the ASBR.

C.

A Type 4 LSA advertises the external networks connected to the ASBR.

D.

A Type 4 LSA is not flooded in the area that contains the ASBR.

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Question # 24

Which component of the Alcatel-Lucent 7750 SR is in charge of performing the longest prefix match lookup on packets that arrive on the physical interfaces?

A.

CPM

B.

MDA

C.

Switch Fabric

D.

IOM

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Question # 25

Which of the following is NOT a field in the IPv6 header?

A.

Next Header

B.

Traffic Class

C.

Hop Limit

D.

Fragment Offset

E.

Flow Label

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Question # 26

If the OSPF reference bandwidth is set to 1000 Gbps. what is the cost of a 1 Gbps interface?

A.

1

B.

10

C.

100

D.

1000

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Question # 27

An Alcatel-Lucent 7750 SR is configured with an export policy to redistribute a loopback prefix into OSPFv3.

What type of LSA advertises the prefix to the other OSPFv3 routers in the same area?

A.

Router LSA

B.

AS External LSA

C.

Intra-Area Prefix LSA

D.

Inter-Area Prefix LSA

E.

Network LSA

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Question # 28

Which of the following is a valid IPv6 address equivalent to 2001:0da8:0000:0000:0024:0000:4ab9:0300?

A.

2001:0da8:::0024:0000:4ab9:03

B.

2001:0da8::0024::4ab9:0300

C.

2001:da8::24::4ab9:300

D.

2001:da8::24:0:4ab9:300

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Question # 29

Click on the exhibit.

Two neighboring OSPF routers have exchanged the packets shown. What state is the adjacency in?

A.

Down

B.

Initializing

C.

2-way

D.

Full

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Question # 30

Click on the exhibit.

Router R1 distributes its loopbacks into IS-IS and globally routed addresses are configured as shown.

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

A.

1

B.

2

C.

3

D.

4

E.

6

F.

7

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Question # 31

Which of the following statements regarding IS-IS LSPs is true?

A.

There are three types of LSPs: L1, L2 and L1/L2.

B.

An LSP packet contains the ATT bits and the IS-type bits.

C.

The lower the LSP sequence number, the more current the update.

D.

Separate databases are maintained for L1 „ L2, and L1/L2 LSPs.

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Question # 32

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.

A.

The OSPF internal preference

B.

The IS-IS Level 1 internal preference

C.

The IS-IS Level 2 internal preference

D.

The OSPF external preference

E.

The IS-IS Level 2 external preference

F.

The IS-IS Level 1 external preference

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Question # 33

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

A.

Routers broadcast the entire route table to all neighbors.

B.

Information about directly connected links is sent to all neighbors.

C.

An adjacency database is maintained by each router.

D.

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

E.

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

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Question # 34

Which of the following types of networks are supported on an Alcatel-Lucent 7750 SR for OSPF? Choose two answers.

A.

Broadcast

B.

Non-broadcast multi-access

C.

Point-to-point

D.

Point-to-multipoint

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Question # 35

Which of the following commands can be used to display the number of SPF computations that have been performed on a router?

A.

show router ospf area

B.

show router ospf neighbor

C.

show router ospf interface

D.

show router ospf status

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Question # 36

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 # 37

How are IS-IS LSPs sent on point-to-point links?

A.

They are sent using multicast MAC addresses 0180:0200:0014.

B.

They are sent using multicast MAC addresses 0180:c200:0015.

C.

They are sent using a unicast address.

D.

None of the above.

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Question # 38

At what point is the LSP SRM flag cleared when an LSP is sent on an IS-IS point-to-point link?

Choose two answers.

A.

As soon as the LSP is transmitted.

B.

When an acknowledgment is received in the form of PSNP.

C.

When an older LSP is received.

D.

When a newer or same aged LSP is received.

E.

Only when a newer LSP is received

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Question # 39

Click the exhibit button.

What can you deduce from the show command on router R6?

A.

The router R6 interface is in a multi-access segment. It is neither the DR nor the BDR for the segment. The DR for this segment would be the router with router ID 10.10.10.5.

B.

The router R6 interface is in a multi-access segment. It is neither the DR nor the BDR for the segment; however, this command does not indicate whether 10.10.10.3 or 10.10.10.5 is the DR or BDR.

C.

The router R6 interface is in a multi-access segment. It is the BDR, which is why it is not adjacent to the other routers.

D.

The router R6 interface is in a multi-access segment. It is neither the DR nor the BDR for the segment. The DR for this segment would be the router with router ID 10.10.10.3.

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Question # 40

Which of the following statements describe the major features of OSPF? Choose two answers.

A.

Fast reroute capability

B.

Control traffic prioritization

C.

Route redistribution

D.

Traffic engineering extensions

E.

Cut through forwarding

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Question # 41

Which of the following is FALSE regarding link-state protocols?

A.

Each router constructs its own link-state database with updates received from neighbors.

B.

When a router performs an SPF computation, it sends the results to its neighbors.

C.

An SPF computation is done by each router to determine the best path to destination prefixes

D.

The link-state database is identical for all routers in a single area routing domain.

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Question # 42

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

A.

IS-IS supports VLSM and CIDR.

B.

IS-IS uses OSI addressing.

C.

IS-IS supports manual summarization

D.

IS-IS uses periodic Hello messages.

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Question # 43

Click on the exhibit.

The numbers beside the links are the metrics for that link.

Given the diagram, what path will traffic follow from router R1 to router R7, and from router R7 to router R1, if IS-IS is the routing protocol?

A.

Router R1 to router R7 will follow (R1-R2-R4-R6-R7). Router R7 to R1 will follow (R7-R6-R4-R2-R1)

B.

Router R1 to router R7 will follow (R1-R2-R4-R6-R7). Router R7 to R1 will follow (R7-R6-R5-R3-R1)

C.

Router R1 to router R7 will follow (R1-R3-R5-R6-R7). Router R7 to R1 will follow (R7-R6-R4-R2-R1)

D.

Router R1 to router R7 will follow (R1-R3-R5-R6-R7). Router R7 to R1 will follow (R7-R6-R5-R3-R1)

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Question # 44

Click on the exhibit.

Given the contents of the LSPs from routers R1 and R2, which of the following is TRUE?

A.

Router R1 summarizes the prefixes from router R3 as 192.168.0.0/16 and router R2 does not summarize the prefixes.

B.

Router R1 does not summarize the prefixes from routers R3 and R2 summarizes them as 192.168.0.0/16.

C.

Router R1 summarizes the prefixes from router R3 as 192.168.0.0/20 and router R2 does not summarize the prefixes.

D.

Router R1 does not summarize the prefixes from routers R3 and R2 summarizes them as 192.168.0.0/20.

E.

Both routers R1 and R2 summarize the prefixes from R3 as 192.168.0.0/20.

F.

Neither router R1 nor router R2 summarizes the prefixes from router R3.

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Question # 45

Click on the exhibit.

Given the output shown, which router is the ASBR in this network?

A.

10.10.10.2

B.

10.10.10.3

C.

10.10.10.4

D.

10.10.10.6

E.

There is no ASBR configured in the network.

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Question # 46

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

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.

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Question # 47

Which of the following is not included in a Router LSA?

A.

Operationally down interfaces in OSPF

B.

Fully adjacent virtual links

C.

Waiting state broadcast links

D.

Fully adjacent point-to-point links

E.

Loopback Interfaces in OSPF

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