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

PE-1 requires T-LDP sessions to both ABR-1 and ABR-2.

PE-1 requires a full mesh of RSVP-TE LSPs to all routers in area 1.

ABR-1 requires T-LDP sessions to all ABRs in area 0.

PE-1 requires fast reroute enabled on all RSVP-TE LSPs.

Enabling VPNs

Enabling traffic engineering

Enabling network security

Enhancing network resiliency

show router ospf opaque-database

show router ospf database

show router ospf opaque-Isa

show router ospf te opaque

Isp-trace

Idp-trace

Sdp-ping

Svc-ping

Ping

traceroute 10.2.3.1

traceroute 10.2.3.1 next-hop 10.1.2.1

traceroute next-hop 10.1.2.1

traceroute does not work on the Nokia 7750 SR.

traceroute 10.1.2.1

Not so stubby area

Stub area

Backbone area

Normal area

Service tunnels are unidirectional.

Transport tunnels are unidirectional.

A service will use the same service label for every hop.

A local service requires a transport tunnel.

Enable the Idp-over-rsvp feature on all PEs and ABRs along the LSP tunnel.

Configure Link-LDP sessions between each PE-ABR and ABR-ABR pair.

Configure RSVP-TE LSPs in each area between each PE-ABR and ABR-ABR pair.

Configure T-LDP sessions with the tunneling option.

Family ipv4

Family ipv6

Family ipv4 ipv6

Family vpn-ipv4

Family vpn-ipv4 vpn-ipv6

It is used for loop detection within the same cluster.

It is used for loop detection between clusters.

It is used for loop detection in a confederation.

It is used to identify the route reflectors within an AS.

traceroute 2.3.4.1

traceroute 2.3.4.0/24 next-hop 1.2.3.4

traceroute next-hop 1.2.3.4

traceroute does not work on the Nokia 7750 SR

10.32.1.2

10.1.4.78

10.48.1.1

10.1.2.2

To protect external networks from instability.

To communicate the architecture of an AS to external ASs.

To protect the local AS and other external ASs from bad NLRI.

To optimize ingress and egress traffic patterns to best serve the users of the AS.

Router B propagates the BGP update to routers D and C.

Router B propagates the BGP update to router D.

Router B detects duplicates in its BGP database and discards the update.

Router B propagates the update to routers A, C and D.

0

1

2

3

4

Option A

Option B

Option C

Option D

The TC field is set based on the value of the DSCP field inside the customer packet.

The TC field is set to a specific value via explicit administrative configuration.

The TC field is set to a system generated random number.

The TC field is set by the eLER.

5 and 15 seconds

10 and 30 seconds

5 and 20 seconds

10 and 40 seconds

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.

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.

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.

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.

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.

"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 link state information is not populated in the database but is forwarded to all neighbors

The link state information already in the database is overwritten and the age is reset

The link state information is not populated in the database and an acknowledgement is sent

The link state information is regarded as old and nothing is done.

The original VLAN tag is removed.

The original VLAN tag is kept.

The VLAN tag is replaced by a provider tag.

The VLAN tag is kept and a provider tag is added.

Type 8 LSA — Link Local LSA

Type 9 LSA — Link local Opaque LSA

Type 10 LSA — Area local Opaque LSA

Type 11 LSA —AS Opaque LSA

It provides the ability to establish connection oriented paths over a connectionless IP network.

It provides a mechanism to engineer network traffic patterns independently of IP routing tables.

It will work over most physical layer protocols.

It can use GRE tunnels to transport data from many different protocols over an IP network.

'asbr' is missing from router R1's configuration.

Router R1 needs to have an export policy added to it.

Router R5 does not have an export policy for these prefixes.

Router R1 needs to have an import policy added to it.

From the last 32 bits of the chassis MAC address

From the first 32 bits of the chassis MAC address

The loopback IP address

By using the command "config router ospf rid X.X.X.X"

From the system IP address

From the highest interface IP address

IP packets sent to an IP multicast address.

TCP packets sent to an IP multicast address.

IP packets sent to an IP unicast address.

UDP packets sent to an IP multicast address.

Area ID

Hello and Dead Intervals

Stub flag

DR and BDR addresses

The list of neighbors

Router R1

Router R2

Router R3

Router R4

Router R5

OSPF uses TCP, so the protocol number is 6.

OSPF uses UDP, so the protocol number is 17.

OSPF does not use IP.

OSPF has its own protocol number of 89.

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.

LDP Hello messages are sent over TCP.

LDP Hello messages are sent to the All Routers address 224.0.0.2.

LDP Hello messages are exchanged between all directly connected LDP enabled routers.

Each LDP enabled router must have its own unique system IP address.

MPLS Echo Request packets are sent within the RSVP-TE tunnel that is signaled for "lsp-toR2".

MPLS Echo Request packets are sent within the LDP tunnel that is signaled for Mlsp-toR2".

MPLS Echo Request packets are IP-routed to the destination address of "lsp-toR2".

MPLS Echo Request packets are sent to the destination address of "lsp-toR2" over TCP.

An IGP route takes priority over a transport tunnel.

Both LDP and RSVP-TE based tunnels can be used.

MPLS tunnels can be used to resolve the prefixes learned via IGP.

Multiple MPLS tunnels can be installed in the FIB.

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.

AS Path of 65200 65100, Next Hop of router A.

AS Path of 65200 65100, Next Hop of router E.

AS Path of 65100, Next Hop of router E.

AS Path of 65100, Next Hop of router A.

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

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

Make a static route on router R1 to 192.168.3.1

Make a default route on router R2

Metric is based on hop count.

Slow convergence after link failures.

Support hierarchy through the use of areas.

Support for CIDR.

Link state updates sent using layer 3 multicast.

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.

All routers along the path, R1, R2, and R3 can be PLRs.

If the R1-R2 link fails, router R4 becomes an MP.

If the R2-R3 link fails, router R3 becomes a PLR.

Router R1 is the LSP head-end and can be a PLR.