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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 IOS IPS to work properly; however, it is the deny all traffic entry that is actually required
C. to enable Cisco IOS Firewall to work properly; however, it is the deny all traffic entry that is actually required
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
Correct Answer: D Section: (none)Explanation
Which of these is mandatory when configuring Cisco IOS Firewall?
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Both switches and hubs are being utilized within the Certkiller network. Which of the following is true regarding the use of switches and hubs for network connectivity in this network?
A. Switches take less time to process frames than hubs take
B. Hubs can filter frames
C. Switches do not forward broadcasts
D. Switches increase the number of collision domains in the network
E. Using hubs can increase the amount of bandwidth available to hosts
F. None of the above
Correct Answer: D
Which one of the following characteristics is true regarding the use of hubs and switches?
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For what two purposes does the Ethernet protocol use physical addresses? (Choose two.)
A. to uniquely identify devices at Layer 2
B. to allow communication with devices on a different network
C. to differentiate a Layer 2 frame from a Layer 3 packet
D. to establish a priority system to determine which device gets to transmit first to
E. allow communication between different devices on the same network
F. to allow detection of a remote device when its physical address is unknown
Correct Answer: AE
What are two advantages of Layer 2 Ethernet switches over hubs? (Choose two.)
A. decreasing the number of collision domains
B. filtering frames based on MAC addresses
C. allowing simultaneous frame transmissions
D. increasing the size of broadcast domains
E. increasing the maximum length of UTP cabling between devices
Correct Answer: BC
Refer to the exhibit. Why has this switch not been elected the root bridge forVLAN1?
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Company ABC is planning to migrate from MCS-hosted Cisco Unified Communications Manager applications to Cisco UC on UCS B-Series servers. Which statement about installation media support is true for this migration?
A. The install log can be written to a USB flash drive that is attached to the UCS server.
B. The answer file that is generated by the Answer File Generator (platformConfig.xml) can be read from a USB flash drive to perform an unattended installation on the UCS server.
C. The Cisco Music on Hold USB audio sound card can be mapped to a virtual USB port on a VMware virtual machine on the UCS server.
D. The answer file that is generated by the Answer File Generator (platformConfig.xml) can be read from an FLP image that is mounted in a virtual floppy drive.
E. The Cisco Music on Hold USB audio sound card can be mapped to a virtual serial port on a VMware virtual machine on the UCS server.
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NetFlow provides valuable information about network users and applications, peak usage times, and traffic routing. Which function is of NetFlow?
A. monitor configuration changes
B. monitor CPU utilization
C. monitor link utilization
D. generate traps for failure conditions
Correct Answer: C
The P4S company is deploying OSPF on a point-to-multipoint Frame Relay network. The remote sites needn??t to communicate with each other and there are a relatively small number of sites (scaling is not a concern). How to configure OSPF for this topology in order to minimize the additional routing information injected into the network and keep the configuration size and complexity to a minimum?
A. Configure the link as OSPF nonbroadcast and manually configure each of the remote sites as a neighbor.
B. Configure the link as OSPF broadcast and configure the hub router to always be the designated router.
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A company plans to include Nonstop Forwarding and Bidirectional Forwarding Detection as a part of their network redundancy plan. In which two ways do NSF and BFD work together when different hardware platforms are compared? (Choose two.)
A. During supervisor engine or routing engine failover, the NSF feature will always ensure that the BFD at the peer router will not trigger a link down independent of the used hardware platform.
B. At some hardware platforms, BFD and NSF are not supported together. During supervisor engine or routing engine failover, the BFD at the peer router will trigger a link down.
C. To ensure that BFD at the peer router will not trigger a link down during NSF, the BFD packets must be processed fast enough, and, during supervisor engine or routing engine failover, by processing the BFD independent from the supervisor engine or routing engine.
D. Because BFD is always processed at the line cards (not at the supervisor engine or routing engine), a supervisor engine or routing engine failover will not affect the BFD peer router.
E. Because BFD is always processed at the supervisor engine or routing engine, a supervisor engine or routing engine failover will alwaystrigger a link down at the peer router.
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On which gateway or gatekeeper is the IOS command call-rsvp-sync resv-timer 10 used to set the timer?
A. originating VoIP gateway for completing RSVP reservation setups in 10 seconds
B. originating and terminating VoIP gateway for completing RSVP reservation setups in 10 seconds
C. terminating VoIP gateway for completing RSVP reservation setups in 10 seconds
D. VoIP gatekeeper for completing RSVP reservation setups in 10 seconds Correct Answer: C
Calls to an ICD queue should reserve an available agent and connect the call after a database lookup is performed. How should the script be configured to accomplish this?
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