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Fast reroute capability

Control traffic prioritization

Cut through forwarding

Area 1 of router R1 should not be configured as a stub.

Router R3 has the incorrect authentication key type.

There is not enough information to tell.

ping static 10.5.5.5

ping static 0.0.0.0/0

ping 0.0.0.0

Not so stubby area

Backbone area

Normal area

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

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

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

Routers R1 and R2 are in different areas,

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 1/2 Hello PDU, if the interface type between them is broadcast.

L1 and L2 routers elect separate DIS's.

If a new router starts up in a LAN and has a higher interface priority, the new router preempts the original DIS and becomes the DIS.

In broadcast multi-access networks, such as Ethernet, a single router is elected as the DIS.
There is no backup DIS

Link Local LSA

Router LSA

Network LSA

Inter-Area Router LSA

Intra-Area Prefix LSA

As soon as the LSP is transmitted.

When an older LSP is received.

Only when a newer LSP is received

The router installs two routes for the destination with two different next hops. Traffic is evenly distributed over the two paths.

The router installs four routes for the destination with four different next hops. A hashing algorithm is used to distribute traffic over the four paths.

The router installs four routes for the destination with four different next hops. Traffic is evenly distributed over the four paths.

The router installs one route for the destination. Traffic is evenly distributed over the two paths.

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.

Send information about directly connected links to neighbors at periodic intervals.

Maintain multiple databases: neighbor, topology and routing.

Type 1 Router LSA

Type 3 Summary LSA

Type 5 External LSA

On a point-to-point link, a DR and BDR are elected. The DR sends link-state advertisements describing the network.

On a point-to-point link, a DR and BDR are elected. To ensure resiliency, both the DR and BDR send link-state advertisements describing the network.

On a point-to-point link, there is no need for a DR and BDR election. All routing updates are sent to the unicast address of the neighbor's interface.

It can reduce the topological database size.

It can reduce the size of the route table.

It can reduce the number of Summary LSAs.

There is no such calculation in IS-IS

Show router isis database

Show router isis dijykstra

Summary Network LSA

Summary Router LSA

The router is correctly configured.

Neither a reference-bandwidth nor wide-metrics is configured on the router.

Wide-metrics is configured on the router but a reference-bandwidth is not.

The router is correctly configured.

A reference-bandwidth is configured on the router but wide-metrics is not.

The interface metric must be manually configured to 100.

Slow convergence

Automatic summarization

Backbone

Stub

Totally stubby

Intra-Area Prefix LSA

Inter-Area Prefix LSA

AS External LSA

IS-IS supports VLSM and CIDR.

IS-IS uses OSI addressing.

IS-IS uses periodic Hello messages.

Whatever the advertised metric happens to be.

This must be administratively set as there is no default value.

A value of 15.

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

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

None of the above.

Only supported by OSPF and IS-IS

Uses Graceful Restart to inter-operate with other vendors

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.

Fixed total of 128 bits, where 32 bits are used for the global prefix, 32 bits are used for the subnet and 64 bits are used as an interface identifier.

Variable total length, where at least 48 bits are used for the global prefix, 48 bits are used for the subnet and 64 bits are used as an interface identifier.

Variable total length, where at least 64 bits are used for routing and 64 bits are used as an interface identifier

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

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

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

Router R6 will have a single Router LSA that describes the summary prefix.

Router R6 will have three Router LSAs - one to describe each loopback prefix.

Router R6 will have three Inter-Area Prefix LSAs - one to describe each loopback prefix.

Router R6 will not have any LSAs to describe the loopback prefix or the summarized prefix.

With a Router LSA originated by router R1.

With a Router LSA originated by router R5.

With a Router LSA originated by router R4.

With an Inter-Area Prefix LSA originated by router R5.

With an Inter-Area Prefix LSA originated by router R4.

When a Link State Update is received in response to a Link State Request

When OSPF neighbors exchange Database Descriptor packets

When a Link State Acknowledgement is received in response to a Link State Update

The OSPF internal preference

The IS-IS Level 2 internal preference

The IS-IS Level 2 external preference

The IS-IS Level 1 external preference

fe80::2416:4dff:fe16:b53d

ff80::2416:4dff:fe 16:b53d

ff80::2616:4dff:fe 16:b53d

fd80::2416:4dff:fe16:b53d

Router R2 does not have a route to the system address of router R1 and therefore cannot respond to the ping.

Router R2 does not have a route configured to the PC.

Router R1 needs to be configured with a default route.

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

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

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

1

3

4

6

7

The route learned from OSPF will be installed.

Both routes will be installed.

There is not enough information to answer the question

The router is not configured as an asbr.

The router is not configured as an NSSA.

The export policy is not applied to OSPFv3.

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

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

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

10.10.10.2

10.10.10.3

10.10.10.6

There is no ASBR configured in the network.

Configure IS-IS interfaces

Enable IS-IS

Specify an area address

Router R2 has two IS-IS adjacencies and two LSPs

Router R2 has two IS-IS adjacencies and three LSPs

Router R2 has three IS-IS adjacencies and three LSPs

Router R2 has three IS-IS adjacencies and four LSPs

Router R2 has three IS-IS adjacencies and six LSPs

The area addresses TLV

The IP interface address TLV

The authentication information TLV

To reduce the size of each routing update.

To allow interoperability between routing protocols.

To reduce the size of the routing table.

0

10

15

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

The route policy should be applied as an import policy.

The ASBR configuration should be removed.

The interface between routers R1 and R3 must be in OSPF area 0.