Your Path to Success: How to Pass the Nokia 4A0-C02 Nokia SRA Composite Exam Exam

With the same method and attribute as 16-bit AS numbers.

With the same method as 16-bit AS numbers, but using the AS4_Aggregator attribute.

Aggregation is not yet supported with 32-bit AS numbers.

By using a dummy value of 23456 in the 16-bit AS aggregator field. This value lets the router know it needs to read the 32-bit AS number that is contained in the nextTLV.

All routers with which it has a BGP session.

All routers with which it has a BGP session, except the router it received the update from, which is router B.

All routers with which it has a BGP session, except the router it received the update from, which is router C.

All routers with which it has a BGP session, except the router it received the update from, which is router D.

Only eBGP neighbors.

Option A

Option B

Option C

Option D

Well-known mandatory

Well-known discretionary

Optional transitive

Optional non-transitive

100

The IGP cost

500

None

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.

To ensure proper route propagation inside a transit AS.

To ensure that all routers are directly connected.

To ensure that all routers run iBGP inside a transit AS.

To maximize control plane scalability.

A single route for 192.168.0.0/16 is advertised.

BGP routes 192.168.1.0/27, 192.168.2.0/27, and 192.168.0.0/16 are advertised.

BGP routes 192.168.1.0/27 and 192.168.2.0/27 are advertised, and 192.168.0.0/16 appears as a "Blackhole" route in the route table only.

The given export policy is invalid.

A single-homed AS is also known as a stub AS.

A single-homed AS is also known as a leaf AS.

A single-homed AS uses either the ISP AS number or a private AS number.

A single-homed AS can be either transit or non-transit

The IPv6 link-local address of the router D interface towards router A.

The IPv6 link-local address of the router A interface towards router D.

The IPv6 global address of router A.

The IPv6 global address of router D.

The update is sent to router R2 in ISP 1.

The update is sent to routers R2 and R3 in ISP 1.

The update is sent to all routers in ISP 1.

The update is sent to routers R2 and R3 in ISP 1, and to router R3 in ISP 2.

Only the BGP route is in the route table.

Both routes are in the route table.

None of the routes is in the route table.

Only the OSPF route is in the route table.

Next Hop is modified in iBGP updates.

Origin Code is NOT modified in eBGP updates.

AS Path is modified in eBGP updates.

Local Preference is NOT modified in iBGP updates.

Import policies affect ingress data flow.

Export policies affect ingress data flow.

Both import and export policies affect ingress data flow.

Policy direction and data flow are independent.

BGP Fast Reroute is triggered by IGP events.

The backup path is pre-computed and installed in the FIB.

BGP Fast Reroute is independent of number of affected prefixes.

BGP Fast Reroute uses the optimal path to the destination.