ACSP OSPF Routing Configuration 3

Question 1

On an Aruba AOS-CX switch, which OSPF LSA type is generated by an ASBR to advertise external routes into the OSPF domain?

Accepted Answer

Type 5 AS External LSA

Answer

Type 5 AS External LSAs are originated by ASBRs to flood external routing information throughout the OSPF domain (except stub areas).

Question 2

An Aruba switch in an NSSA area originates a Type 7 LSA for a redistributed external route. What converts it to a Type 5 LSA at the area border?

Accepted Answer

The ABR connecting the NSSA to the backbone

Answer

The ABR at the NSSA boundary translates Type 7 LSAs to Type 5 LSAs so the external route information can propagate throughout the OSPF domain.

Question 3

What is the default OSPF hello interval on Aruba switch Ethernet interfaces?

Accepted Answer

10 seconds

Answer

Ethernet (broadcast) interfaces use a 10-second hello interval by default, with a dead interval of 40 seconds.

Question 4

An Aruba switch receives an OSPF DBD packet during neighbor exchange. What does the MS bit in the DBD indicate?

Accepted Answer

The sending router is the master in the master/slave relationship

Answer

The MS (Master/Slave) bit in the DBD packet indicates which router is the master, controlling the DBD sequence number exchange during OSPF database synchronization.

Question 5

Which OSPF neighbor state indicates that the two Aruba switches have fully synchronized their link-state databases?

Accepted Answer

FULL

Answer

The FULL state means both routers have identical LSDBs and the adjacency is complete; this is the desired end state for OSPF neighbors.

(ACSP) Aruba Certified Switching Professional Practice Test

(ACSP) Aruba Certified Switching Professional Practice Test

ACSP OSPF Routing Configuration 3