Question 2.
What is the purpose of an explicit "deny any" statement at the end of an ACL?

A. none, since it is implicit
B. to enable Cisco lOS IPS to work properly; however, it is the deny all traffic entry that is 
    actuallyrequired
C. to enable Cisco lOS Firewall to work properly; however, it is the deny all traffic entry that is 
    actuallyrequired
D. to allow the log option to be used to log any matches
E. to prevent sync flood attacks
F. to prevent half-opened TCP connections

Answer: D

Question 3.
Which of these is mandatory when configuring Cisco IOS Firewall?

A. Cisco IOS IPS enabled on the untrusted interface
B. NBAR enabled to perform protocol discovery and deep packet inspection
C. a route map to define the trusted outgoing traffic
D. a route map to define the application inspection rules
E. an inbound extended ACL applied to the untrusted interface

Answer: E

Question 4.
Which statement correctly describes the disabling of IP TTL propagation in an MPLS network?

A. The TTL field from the IP packet is copied into the TTL field of the MPLS label header at the 
    ingress edge LSR.
B. TTL propagation cannot be disabled in an MPLS domain.
C. TTL propagation is only disabled on the ingress edge LSR,
D. The TTL field of the MPLS label header is set to 255.
E. The TTL field of the IP packet is set to 0.

Answer: D

Question 5.
Two routers configured to run BGP have been connected to a firewall, one on the inside interface and one on the outside interface. BGP has been configured so the two routers should peer, including the correct BGP session endpoint addresses and the correct BGP session hop-count limit (EBGP multihop). 

What is a good first test to see if BGP will work across the firewall?

A. Attempt to TELNET from the router connected to the inside of the firewall to the router 
    connected to the outside of the firewall. If telnet works, BGP will work, since telnet and BGP 
    both use TCP to transport data.
B. Ping from the router connected to the inside interface of the firewall to the router connected to 
    the outside interface of the firewall. If you can ping between them, BGP should work, since 
    BGP uses IP to transport packets.
C. There is no way to make BGP work across a firewall without special configuration, so there is 
    no simple test that will show you if BGP will work or not, other than trying to start the peering 
    session.
D. There is no way to make BGP work across a firewall.

Answer: A

Question 6.
Spanning Tree Protocol IEEE 802.1 s defines the ability to deploy which of these?

A. oneglobal STP instance for all VLANs
B. one STP instance for each VLAN
C. one STP instance per set of VLANs
D. oneSTP instance per set of bridges

Answer: C

Question 7.
Which two of these are used in the selection of a root bridge in a network utilizing Spanning Tree Protocol IEEE 802.1 D? (Choose two.)

A. Designated Root Cost
B. bridge ID priority
C. max age
D. bridge ID MAC address
E. Designated Root Priority
F. forward delay

Answer: B, D

Question 8.
If a port configured with STP loop guard stops receiving BPDUs, the port will be put into which state?

A. learning state
B. listening state
C. forwarding state
D. root-inconsistent state

Answer: D

Question 9.
What is the purpose of the STP PortFast BPDU guard feature?

A. enforce the placement of the root bridge in the network
B. ensure that a port is transitioned to a forwarding state quickly if a BPDU is received
C. enforce the borders of an STP domain
D. ensure that any BPDUs received are forwarded into the STP domain

Answer: C

Question 10.
When STP UplinkFast is enabled on a switch utilizing the default bridge priority, what will the new bridge priority be changed to?

A. 8192
B. 16384
C. 49152
D. 65535

Answer: C

Question 11.
Which of these best describes the actions taken when a VTP message is received on a switch configured with the VTP mode "transparent"?

A. VTP updates are ignored and forwarded out all ports.
B. VTP updates are ignored and forwarded out trunks only.
C. VTP updates are made to the VLAN database and are forwarded out trunks only.
D. VTP updates are ignored and are not forwarded.

Answer: B

Question 12.
Refer to the exhibit. In this network, R1 has been configured to advertise a summary route, 192.168.0.0/22, to R2. R2 has been configured to advertise a summary route, 192.168.0.0/21, to R1. Both routers have been configured to remove the discard route (the route to null created when a summary route is configured) by setting the administrative distance of the discard route to 255.

What will happen if R1 receives a packet destined to 192.168.3.1 ?

A. The packet will loop between R1 and R2.
B. It is not possible to set the administrative distance on a summary to 255.
C. The packet will be forwarded to R2, where it will be routed to nullO.
D. The packet will be dropped by R1, since there is no route to 192.168.3.1.

Answer: A

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