How can a network designer reduce the amount of LSA flooding occurring in a large, single area fully-meshed OSPF topology?

A. Implemented passive OSPF interfaces on the routers not participating on the DR/BDR election.

B. Use access control lists to control outbound advertisements.

C. Ensure DR and BDR routers are placed optimally in the topology.

D. Place all point-to-point links in their own dedicated areas.

Refer to the exhibit.

This Layer 2 ring has 10 VLANs with 1000 MAC addresses in each VLAN. Which protocol or mechanism provides the shortest traffic outage if the link marked with "X" fails?

A. Ethernet linear protection switching

B. PVRST

C. MST

D. Ethernet ring protection switching

A network has several routers running IS-IS L1L2 mode on the same Ethernet segment. Which action reduces to a minimum the number of IS-IS adjacencies in this segment?

A. Define only the router on the segment to be DIS

B. Change all routers connected to this segment to a single-level area

C. Make the interface priority on the backup DIS lower than the primary DIS

D. Change half the routers to be L1-only and other half to be L2-only on this segment

Which solution suppresses the effect of excessive interface flapping events on routing protocols?

A. IP Event Dampening

B. SPF Backoff

C. Carrier Delay

D. BFD

Which two design aspects should a metro service provider consider when planning to deploy REP for his backbone? (Choose two.)

A. Two REP segments can be connected redundantly at two points, one connection will be blocked as per the STP defined in IEEE 802.1d.

B. UDLD can be enabled on REP interfaces to detect unidirectional failures.

C. The guaranteed convergence recovery time is less than 50 ms for the local segment.

D. A REP segment is limited to a maximum of seven devices.

E. VLAN load balancing for optimal bandwidth usage is supported in any REP segment.