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

140000 137000

137000 140000

23456 23456

200 140000 137000

On a point-to-point link, there is no need for a DR and BDR election; all routing updates are sent to 224.0.0.5.

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.

One

Two

Three

Four

A route received from a BGP peer within the same AS.

A route originated by a router in a different cluster of the same AS.

A route received from a BGP peer from a different member AS of a confederation.

A route received from a BGP peer from the same member AS of a confederation.

show router ospf opaque-database

show router ospf database

show router ospf opaque-Isa

show router ospf te opaque

The router must receive several BGP routes to compute a backup path.

BGP FRR can be triggered by BFD.

The backup path can use the same next hop as the primary path.

BGP peer-tracking can be used to improve BGP FRR failure detection times.

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.

R1-R3-R8

R1-R2-R4-R8

R1-R3-R4-R8

R1-R2-R4-R3-R8

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.

R4 (10.10.10.4) has established a link protection tunnel.

R6 (10.10.10.6) has established a link protection tunnel.

R2 (10.10.10.2) has established a node protection tunnel.

R1 (10.10.10.1) has not established a node protection tunnel.

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

Router R3 has the incorrect authentication key type.

Router R1 has the incorrect authentication key type.

There is not enough information to tell.

"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)

The frame is dropped.

The VLAN tag is removed, and the frame is transported over the network.

The VLAN tag is kept, and the frame is transported over the network.

The VLAN tag is kept, a VLAN of 0 is added, and the frame is transported over the network.

1

2

3

None

Show route-table

Show router routing-table

Show router route-table

Show static

The AS Path is set to 65540, and the Atomic Aggregate flag is set.

The AS Path is set to 65540 65550, and the Atomic Aggregate flag is set.

The AS Path is set to 65540 65550, and the Atomic Aggregate flag is not set.

The AS Path is set to 65550, and the Atomic Aggregate flag is not set.

Type 1 Router LSA

Type 2 Network LSA

Type 3 Summary LSA

Type 4 ASBR LSA

Show ospf neighbors

Show router ospf neighbors

Show router ospf adjacency

Show ospf adjacency

Label

Frame check sequence

Traffic Class (previously called Experimental)

Time To live

Bottom of stack bit

5 and 15 seconds

10 and 30 seconds

5 and 20 seconds

10 and 40 seconds

show router ospf area

show router ospf neighbor

show router ospf interface

show router ospf status

OSPF

RIP

BGP

IS-IS

Both PE1 and PE2 need a mirror source.

PE2 needs a mirror source with the remote source specified.

PE1 needs a mirror source with the remote source specified.

Both PE1 and PE2 need a mirror destination.

PE2 needs a mirror destination that specifies a SAP.

The router will accept the update and send a notification.

The router will not accept the update and send a notification.

The router will accept the update and ignore the attribute.

The router will accept the update and propagate the attribute.

iLER

LER

LSR

PE

eLER

Secondary_Path-1

Secondary_Path-2

Secondary_Path-3

Secondary_Path-4

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.

A route target is used to distinguish to which VRF table a prefix belongs.

A route target appended to an IPv4 prefix produces a VPN-IPv4 prefix.

Multiple route targets can be part of a single MP-BGP update.

Route targets must be configured for VPRNs.

Sdp-ping

Isp-ping

Svc-ping

Sdp-mtu

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.

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.

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.

Option A

Option B

Option C

Option D

Ping static 3.3.3.1

Ping static 0.0.0.0/0

Ping 3.3.3.1

Ping 0.0.0.0

Routers R1 and R2 are redundant route reflectors with clients R3 and R4.

Routers R3 and R4 are route reflectors with clients R1 and R2.

Router R1 is a route reflector with clients R2, R3 and R4.

Router R1 is a route reflector with clients R3 and R4.

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.

In multi-access networks, a DR and BDR are elected only if there are more than two routers connected to the network segment.

In multi-access networks, a DR and BDR are elected only if the subnet masks on the router interfaces are less than /30

In multi-access networks, a DR and BDR are elected. To ensure resiliency, both the DR and BDR send link-state advertisements describing the network.

In multi-access networks, a DR and BDR are elected. The DR sends link-state advertisements describing the network.

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.

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.

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 and transported over the network.

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

RIPv2 supports basic and MD5 authentication only.

RIPv2 supports password and MD5 authentication only.

RIPv2 does not support authentication, password and MD5 authentication.

RIPv2 does not support authentication.