QUESTION: 25

Examine the network exhibit:

The ACL configuration defined on Core-1 is as follows:

If telnet was being used, which device connection would be permitted and functional in both directions? (Choose two.)

Client 3 to Client 2
Client 1 to Client 2
Server 2 to Client 2
Server 1 to Client 1
Client 1 to Client 3

Answer(s): B,D

Explanation:

CL3 - CL2 - drop on forward path by core1 cause match VLAN 20 and CL3 not CL1 as SRC IP
CL1 - CL2 - pass - no ACL cause forwarded by Access2
SR2 - CL2 - pass on forward path by core1 cause match VLAN 10
Drop on return path by core1 cause match VLAN 20 and no CL1 as SRC IP
SR1 - CL1 - pass on forward path by core1 cause match VLAN 10
pass on return path by core1 cause match VLAN 20 and CL1 as SRC IP
CL1 - CL3 - pass on forward path by core1 cause match VLAN 20 and CL1 as SRC IP
drop on return path by core1 cause match VLAN 20 and not CL1 but CL3 as SRC IP

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QUESTION: 26

An administrator has an aggregation layer of 8325CX switches configured as a VSX pair. The administrator is concerned that when OSPF network changes occur, the aggregation switches will respond to the changes slowly, and this will affect network connectivity, especially VoIP calls, in the connected access layer switches.
What should the administrator do on the aggregation layer switches to alleviate this issue?

Implement route aggregation
Implement bidirectional forwarding detection (BFD)
Reduce the hello and dead interval timers
Implement graceful restart

Answer(s): B

Explanation:

"BFD tests the connectivity between two IP addresses in a BFD session. BFD reports when connectivity is lost. The router (or routing switch) can then use that information to take the appropriate actions, depending on the functions to which you have tied BFD"

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