642-651 Exam

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Exam : Cisco 642-651
Title : Cisco Wide Area Application Services for System Engineers


1. Which two options correctly identify the WAE file services integration modes available in Cisco WAAS? (Choose two.)
A. transparent, in which the WAE appears as a node on the remote office LAN
B. transparent, in which the WAE does not appear as a node on the remote office LAN
C. non-transparent, in which the WAE appears as a node on the remote office LAN
D. non-transparent, in which the WAE does not appear as a node on the remote office LAN
Answer: BC

2. You have configured a Central Manager WAE cluster for your customer. After a technician accidentally unplugs the power cord from the primary Central Manager WAE, the network administrator calls you to complain that the standby Central Manager WAE did not automatically assume the primary role. What should you tell this administrator?
A. You should verify that the datafeed.pollrate setting is configured properly.
B. You should make sure the two Central Manager WAE appliances are on the same subnet
C. You must manually copy the Central Manager database to the standby Central Manager WAE.
D. You must manually initiate failover and fallback processes on the WAE.
Answer: D

3. Your customer's Cisco WAAS design calls for the Central Manager to be deployed on the Core WAE, which is a WAE-612 with 2GB of RAM. The customer initially configured the WAE as an application accelerator, and then issued the device mode central-manager command to enable Central Manager service. Now the customer reports that the WAE is no longer accelerating traffic. What is the problem?
A. The Central Manager and application accelerator cannot be deployed on the same WAE.
B. At least 4GB of RAM must be installed for the WAE to serve as both Central Manager and application accelerator.
C. The device mode central-manager command must be issued before the device mode application-accelerator command.
D. Central Manager is consuming too much CPU time on the WAE. The Central Manager service should be implemented on a less-utilized edge WAE.
Answer: A

4. In a Cisco WAAS environment, which TCP connection establishment messages should you examine if your customer has sent you a TCP protocol trace and asked for your help in understanding why the WAE appliances are failing to negotiate the correct, optimized policy?
A. SYN and FIN
B. SYN and ACK
C. SYN and SYN ACK
D. ACK and SYN ACK
Answer: C

5. Which LAN traffic management feature is fully supported by Cisco WAAS?
A. intrusion detection system
B. QoS
C. NBAR
D. MPLS
Answer: B

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