4A0-C04 Nokia NRS II Composite Exam: OSPF version Question and Answers

It modifies the BGP advertisement logic.

It improves convergence times and allows for better load sharing.

It allows a router to advertise multiple external paths for a single prefix.

It supports both IPv4 and IPv6.

An echo request is sent based on the LSP's label stack.

Echo reply packets may not take the same path as the LSP.

The IP destination address is used to initiate echo requests,

The test fails if the LSP is not operationally up.

100

The IGP cost

500

None

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.

Option A

Option B

Option C

Option D

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

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

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

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

vc-type ether

vc-type vlan

vc-type dotlq

vc-type null

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.

An LSR answers requests for label mappings immediately, without waiting for a label mapping from the next-hop.

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

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

An LSR propagates a label mapping downstream for a FEC. only if it has a label mapping for the FEC's next-hop.

Router R1 generates a Type 4 LSA that is flooded to areas 0, 1, and 2.

Router R3 generates a Type 4 LSA that is flooded to areas 0, 1, and 2.

Router R3 generates a Type 4 LSA that is flooded to areas 0 and 2.

Router R3 generates a Type 4 LSA that is flooded to area 0, and router R6 generates a Type 4 LSA that is flooded to area 2.

Option A

Option B

Option C

Option D

An OSPF adjacency can be established on an IES interface.

IES allows provider MP-BGP sessions to be extended to customers.

An IES service must use static routes in order to communicate with customer networks.

An IES interface supports OSPF and IS-IS in passive mode only.

Router LSA

AS External LSA

Intra-Area Prefix LSA

Inter-Area Prefix LSA

Network LSA

None of the statements are correct.

The corporate head office router will have a default route and the branch site will have a more specific static route.

The corporate head office router and the branch office router will both have specific static routes.

The corporate head office router and the branch router will both have default routes.

The corporate head office router will have a more specific static route and the branch office router will have a default route.

A SAP can be associated with more than one service.

A SAP is the subscriber's point of entry to the service network.

A SAP is created by specifying a physical port and an encapsulation type.

A SAP can only be created on a port configured as "access".

They are signaled between PE devices using MP-BGP.

They are swapped at each P router as a packet crosses the service provider network.

They are also known as the inner label or service label.

They indicate to the egress PE the VPRN to which a packet belongs.

IP packets sent to an IP multicast address.

Ethernet frames sent to an Ethernet multicast address.

IP packets sent to an IP unicast address.

UDP packets sent to an IP multicast address.

An OSPF database description packet has not been received from the neighbor.

The interface facing the neighbor is down.

The interface is included in a different area than the neighbor router.

The router has not received a valid OSPF Hello packet from its neighbor.

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.

Default path

Default gateway

Gateway path

Proxy ARP

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

The service is a local service.

The service requires a second spoke SDP on this router.

The service's VC ID is 44.

The service will accept VLAN tag 100.

A group of packets that will be forwarded by the router in the same manner, over the same path.

A group of packets that arrive at the router on the same interface,

A group of packets that leave the router on the same interface.

A group of packets that arrive at the router on the same interface, from the same source.

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.

They provide both peering and transit services.

They provide services only to Tier 1 service providers.

They can be either public or private.

They provide services at the local, regional and continental levels.

Option A

Option B

Option C

Option D

65206 65202 65100

(65206 65202)65100

(65204 65206 65202) 65100

(65200) 65100

The SDP to 10.10.10.1 on router R4 is shutdown.

Router R4 has not sent a label to router R1 (10.10.10.1) yet.

10.10.10.1 has a different service MTU set.

10.10.10.1 has not sent a label to router R4 yet.

When two areas need to communicate and there is no area 0.

When an area needs to traverse another area to reach area 0.

When two areas are connected to area 0, but there is no direct path between them.

When an area needs to connect directly to another area without using area 0.

The Isp-ping tool is used to perform a unidirectional LSP test.

The router 10.10.10.2 is the egress router of the LSP.

The router can reach the far-end of the LSP through an RSVP-TE tunnel.

The router can reach the far-end of the LSP through an LDP tunnel.

Type 10 opaque LSAs are supported by IS-IS.

Type 10 opaque LSAs are flooded to all areas of the routing domain.

Type 10 opaque LSAs are stored in an LSDB.

Type 10 opaque LSAs are used for traffic engineering support.

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.

MD5 Authentication is not supported.

Router LSAs do not carry IPv6 prefix information

NSSA is not supported in OSPFv3.

OSPFv3 uses a 32-bit router ID.

10.0.2.1

10.0.2.2

10.16.10.1

10.16.10.3

Link protection tunnels are established if a router is unable to establish node protection tunnels.

Link protection tunnels are only requested for a primary LSP path.

Link protection tunnels can be created for both one-to-one or facility Fast Reroute.

Link protection tunnels detour around a failed next downstream router.

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

A OSPF Hello has not been received from the neighbor

Option A

Option B

Option C

Option D

Both routers will generate OSPF Hello packets.

The system interface is missing in one configuration so OSPF will not operate correctly.

The interface type settings differ, but OSPF will still operate correctly.

Metric values differ, but this does not prevent OSPF operation.

The router does not have a route to reach to the peer 10.10.10.2/32.

The router does not have a route to reach to the prefix 192.10.1.2/32.

The router does not have an export policy defined to export the prefix 192.10.1.2/32 into LDP.

The router receives an invalid label for the prefix 192.10.1.2/32 from its peer.

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.