Refer to the exhibits.
Exhibit 1

Exhibit 2

Exhibit 1 shows the topology for the network. The network administrator sees the log entries shown in Exhibit 2. Which type of failure is indicated?

• A.Graceful restart helper was not enabled on Switvh-2, so BFD was unable to operate correctly, and the session was taken down.
• B.A link between Switch-1 and Switch-2 went down. BFD detected the lost connectivity and behaved as expected.
• C.BFD was set up incorrectly on Switch-2, so it caused Switch-2 to lose adjacency with Switch-1 rather than repair the session.
• D.A hardware issue caused a unidirectional link; BFD detected the issue at Layer 2 and prevented a broadcast storm.

Comment: *

Name: *

Email: *

Verification: *

Refer to the exhibits.
Exhibit 1

Exhibit 2

Exhibit 2 shows IGMP groups on Switch-2, which runs IGMP but not PIM. Switch-1 and Switch-3 do not have IGMP or PIM enabled. Client 1 begins to forward multicasts to 239.1.1.1.
Which clients receive the multicasts?

• A.Client 3, but not any of the other clients
• B.Client 3 and Client 4, but not Client 2
• C.Client 2, but not any of the other clients
• D.Client 2, Client 3, and Client 4

Comment: *

Name: *

Email: *

Verification: *

Refer to the exhibit.

The exhibit shows configurations for interface 5 and VLAN 20. Note that DHCP snooping and ARP protection are also enabled.
A network administrator finds that interface 5 on an AOS-Switch is disabled. The administrator re-enables the interface, but it shuts down again. What should the administrator investigate?

• A.rogue DHCP server
• B.a device that sends too much unicast traffic
• C.a device that sends unauthorized ARP messages
• D.a loop on the interface

Comment: *

Name: *

Email: *

Verification: *

What is a reason for hello packets between two OSPF routers?

• A.to permit an OSPF adjacency between two VSF fabrics
• B.to monitor connectivity with the neighbor, but not exchange the routing table
• C.to establish an area that is not directly connected to the backbone Area 0
• D.to permit OSPF to operate between two routers that also run VRRP

Comment: *

Name: *

Email: *

Verification: *

What is a reason to implement port security on an AOS-Switch?

• A.to simplify provisioning for devices such as IP phones or printers
• B.to enhance the security of an 802.1X solution
• C.to filter traffic at the edge, based on multiple criteria in the MAC header
• D.to control management access to the switch CLI based on device, as well as user credentials

Comment: *

Name: *

Email: *

Verification: *