江浙沪招生考试网

1. After configuring a Cisco WAAS deployment using WCCPv2, you find that you can successfully ping a data
center server from a workstation in the branch office. However, when you attempt to start one of the optimized
applications, the application cannot communicate with the server. What is the most likely cause?
A. There is insufficient disk space on either the edge or core WAE.
B. You configured half-duplex mode on the WAE interfaces.
C. You configured autonegotiate duplex mode on the WAE interfaces.
D. You deployed the WAE on the same subnet as the users or servers.
Answer: D 
2. Refer to the exhibit. Your customer plans to deploy the edge WAE appliances in an off-path, two-arm
configuration. The WAE appliances are connected to Cisco Catalyst 6500 Series Switches and use WCCPv2 for
traffic interception. The customer wants to minimize the latency added by interception. The customer also wants
to know if Layer 2 redirection, rather than GRE tunnels, will improve performance. 
What should you tell your customer? 
A. Layer 2 redirection can be used only in in-path configurations.
B. Layer 2 redirection can be used only in one-arm configurations.
C. Layer 2 redirection can be used in the customer configuration.
D. GRE tunnels provide better performance than Layer 2 redirection.
Answer: C 
3. When implementing Windows authentication for WAE management, what is the maximum allowable time skew
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between each WAE and the Windows domain controller?
A. 1 second
B. 5 seconds
C. 120 seconds
D. 300 seconds
Answer: D 
4. Your customer plans to implement Cisco WAAS using four WAE appliances in a load-balanced configuration.
Which feature must be supported on the switches to which the WAE appliances are attached?
A. redirect exclusion
B. Layer 2 redirection
C. WCCPv2
D. WCCPv2 or PBR
Answer: C 
5. Your customer has deployed Cisco WAAS using ACE for traffic interception. The customer reports that traffic
is not being optimized. Which command would you use to troubleshoot network interception?
A. WAE-CORE# show wccp routers
B. WAE-CORE# show ip access-lists
C. ACE/Admin# show wccp routers
D. ACE/Admin# show rserver detail
E. router# show wccp services
Answer: D 
6. Refer to the exhibit. What are two possible reasons the CORE1 WAE might be displayed as "Offline"? (Choose
two.)
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A. The WAE is powered off.
B. The HTTPS service is disabled.
C. The Central Manager service is disabled.
D. The WAE is configured in the same VLAN as the server nodes.
Answer: AC 
7. Your customer reports that traffic has never been received by the remote device after deploying Cisco WAAS
using WCCPv2 in an off-path configuration. Which two parameters should you verify? (Choose two.)
A. IP SLAs
B. WAE subnet
C. router IP address
D. routing configuration
E. service group redirection
Answer: BE 
8. Refer to the exhibit. This partial listing shows output from the show tfo connection summary command. Given
this output, which statement is correct? 
A. The local WAE policy was configured for LZ compression only; the remote WAE policy was configured for
full optimization.
B. The local WAE policy was configured for LZ compression and TFO optimization; the remote WAE policy was
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configured for LZ compression only.
C. Both the local and remote WAE policies were configured for LZ compression only.
D. Both the local and remote WAE policies were configured for LZ compression and TFO optimization, but only
LZ compression was applied.
Answer: A 
9. 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 must manually initiate failover and fallback processes on the WAE.
B. You should verify that the datafeed.pollrate setting is configured properly.
C. You must manually copy the Central Manager database to the standby Central Manager WAE.
D. You should make sure the two Central Manager WAE appliances are on the same subnet.
Answer: A 
10. When must WCCPv2 redirect exclusion be configured on the routers?
A. when redirect in is used on any interface
B. when redirect in is used on the LAN interface only
C. when redirect in is used on the WAN interface only
D. when redirect out is used on any interface
E. when redirect out is used on the LAN interface only
F. when redirect out is used on the WAN interface only
Answer: D 
11. How many IP addresses are required for an in-line card in a redundant, serially clustered configuration?
A. none
B. one
C. two
D. four
Answer: A
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12. Which two symptoms would you expect to observe in a TCP trace if a Cisco WAE that was optimizing
connections fails? (Choose two.)
A. The receiving node receives TCP segments with invalid sequence numbers and resets the connection.
B. The secondary WAE takes over the connection and the receiving node sees nothing.
C. The receiving node continues normally because it has a session to the originating node.
D. All optimized TCP connections handled by that WAE are reset.
E. All optimized TCP connections are taken over by the receiving node.
Answer: AD 
13. How can you verify that the WAE has joined a Microsoft Windows domain correctly?
A. Execute the show windows-domain command on the WAE.
B. Click the Show Authentication Status button in Central Manager.
C. Use the Windows nbtstat command.
D. Use the Windows netstat command.
Answer: B 
14. Refer to the exhibit. The exhibit shows the result of executing the show wccp services configuration. What
conclusion can you draw from this result? 
A. The configuration is valid.
B. The configuration is valid for an in-line deployment only.
C. The configuration is valid if a redirect exclude directive has been configured correctly.
D. The configuration is not valid.
Answer: D 
15. In a Cisco WAAS deployment, what should you check first if your customer is reporting poor performance
across all optimized applications?
A. Verify that full duplex is configured on all interfaces.
B. Verify that only one Central Manager WAE is set to active.
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C. Verify that PBR has a route map for each direction of traffic flow.
D. Verify that WCCP is configured with one service group in the path of each direction of traffic flow.
Answer: A 
16. Your customer is using firewalls. What must be permitted to pass through firewalls in order to allow WAE
autodiscovery?
A. TCP SYN-ACK with data
B. TCPoptions
C. TCP port 139
D. TCP port 445
Answer: B 
17. Your customer has configured each Cisco WAE to belong to multiple device groups for monitoring purposes.
However, the customer wants to ensure that the policies are applied to the device from one specific device group.
What should you do?
A. You should configure an explicit policy device group.
B. You should configure the other device groups as monitoring-only.
C. You should rejoin the WAE to the desired device group.
D. You must remove the WAE from all other device groups.
Answer: A 
18. How do you access the WAE Central Manager GUI?
A. http://(ip_addr_of_WAE)
B. https://(ip_addr_of_WAE):443
C. https://(ip_addr_of_WAE):8080
D. https://(ip_addr_of_WAE):8443
Answer: D 
19. How many baseline device groups can be configured for the acceleration feature set?
A. one
B. two
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C. three
D. as many as needed
Answer: A 
20. TCP options are added to which TCP connection establishment messages during Cisco WAAS autodiscovery?
A. ACK and SYN-ACK
B. SYN and ACK
C. SYN and SYN-ACK
D. SYN and RST
Answer: C 
21. Your customer has configured traffic interception using PBR and four core WAE appliances. The customer has
discovered that Cisco WAAS is not load-balancing across the WAE appliances, and wants to know how to
diagnose the problem. What should you tell your customer?
A. PBR uses only the first-available next hop; only one WAE is used at a time.
B. IP SLAs are configured incorrectly.
C. The inbound access list on the core router is configured incorrectly.
D. The PBR route map on the edge router is configured incorrectly.
Answer: A 
22. Refer to the exhibit. What do the status fields shown for the edge-wae device indicate? 
A. The edge-wae device has been activated, but autodiscovery failed.
B. The edge-wae device has been activated, but activation did not complete successfully.
C. The Central Manager is awaiting confirmation that device activation completed successfully.
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D. The edge-wae device has not been activated.
Answer: C 
23. What is one user authentication method that is supported on Cisco WAE devices?
A. LDAP
B. SNMP
C. Kerberos
D. Active Directory
Answer: D 
24. Refer to the exhibit. After completing the initial setup script on the Central Manager WAE, your customer
executed the commands shown in the exhibit to complete the setup. The customer cannot access the Central
Manager GUI. 
What happened? 
A. The customer forgot to reload the WAE after setting the Central Manager role.
B. The customer forgot to specify the IP address of the secondary Central Manager WAE.
C. The customer forgot to issue the cms enable command.
D. The customer forgot to issue the central-manager address [ip_address] command.
Answer: C 
25. The command show tfo connection summary displays what?
A. which optimizations are applied to each connection
B. the number of optimized connections
C. per-application optimization statistics
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D. whether accelerator services are under load
Answer: A 
26. Refer to the exhibit. Six months after deploying a Cisco WAAS solution, your customer reports that CIFS
performance has decreased at one of the branch offices. To troubleshoot the problem, you run the show tfo
accelerators command on the edge WAE. 
Based on the output displayed from the CIFS accelerator service, what is the likely cause of the problem? 
A. The CIFS accelerator service failed about four hours ago.
B. The CIFS accelerator service is experiencing an overload condition.
C. The CIFS optimization policy is not being negotiated properly.
D. The CIFS accelerator service is functioning properly and is not overloaded.
Answer: B 
27. Which WAE deployment model must you use to configure PortChannels on the core WAE appliances to
enable load balancing across WAE interfaces?
A. on-router, one-arm
B. off-router, one-arm
C. on-router, two-arm
D. off-router, two-arm
Answer: B 
28. In a Cisco WAAS environment, what is the role of Application Traffic Policies?
A. to associate a flow with a WAE and associate the optimized flow with a device group
B. to associate a flow with a Central Manager and associate the optimized flow with an application definition
C. to associate a flow with an optimization and associate the optimized flow with an application definition
D. to associate a flow with a WAN connection and associate the WAN connection with an application accelerator
Answer: C
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29. What is a valid WCCP configuration?
A. 61/inbound on LAN interface, 62/outbound on LAN interface
B. 61/outbound on LAN interface, 62/inbound on WAN interface
C. 61/inbound on WAN interface, 62/inbound on WAN interface
D. 61/inbound on LAN interface, 62/outbound on WAN interface
Answer: A 
30. Which associates classified traffic to an application definition and assigns an action?
A. application definitions
B. baseline policies
C. policy maps
D. traffic classifiers
Answer: C 
31. You want to configure the Cisco WAE to log only emergency messages to a syslog server. Which logging level
should you use?
A. logging level 7
B. logging level 5
C. logging level 3
D. logging level 0
Answer: D 
32. Refer to the exhibit. The diagram illustrates the Cisco WAAS configuration for your customer. Which
WCCPv2 interception configuration should you apply to interface Serial0?
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A. Redirect in / service group 61
B. Redirect in / service group 62
C. Redirect out / service group 61
D. Redirect out / service group 62
Answer: B 
33. Your customer has recently completed a large expansion of one of their regional offices. They have discovered
that the WAE-512-2GB Edge WAE in that office has begun passing through some TCP connections without
optimizing those connections. What two actions would solve the problem? (Choose two.)
A. Add more memory to the WAE.
B. Add another WAE-512 edge WAE.
C. Bundle the WAE interfaces into a PortChannel.
D. Use the ACE module to load-balance the WAEs.
E. Upgrade to a WAE-612 or WAE-7326.
Answer: BE 
34. Refer to the exhibit. This partial listing shows output from the show tfo connection summary command. Given
this output, which statement is correct?
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A. The HTTP policy on the local WAE was incorrectly configured.
B. The HTTP policy on the remote WAE was incorrectly configured.
C. The WAE appliances did not correctly negotiate optimizations during autodiscovery.
D. One of the WAE appliances may be experiencing an overload condition.
Answer: D 
35. When using PBR, what do you need to configure to enable failover?
A. IP SLAs or Cisco Discovery Protocol
B. MPLS or GRE
C. NetFlow or NBAR
D. QoS or IP SLAs
Answer: A 
36. Which three parameters are valid for a device group? (Choose three.)
A. Acceleration configuration
B. Authentication provider
C. Installed software version
D. Interception configuration
E. IP SLA configuration
F. Location
Answer: ACD 
37. When using PBR for network interception, how many WAE appliances can be used by a router as a next hop
at a given time?
A. one
B. two
C. three
D. four
Answer: A
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38. Refer to the exhibit. The exhibit shows an entry from a TFO transaction log on the WAE. What conclusion can
you draw from this result? 
A. The connection is not being optimized because the remote WAE had different TFO optimizations configured
than the local WAE.
B. The connection is not being optimized because the configured optimizations are not supported on the peer
WAE.
C. The connection is not being optimized because autodiscovery failed with the remote WAE.
D. The connection is being optimized correctly, but no traffic has been optimized yet.
Answer: C 
39. Your customer implemented Cisco WAAS several months ago using WCCPv2. Yesterday, the customer
implemented an asymmetric routing configuration, and today the customer called to complain that Cisco WAAS is
no longer optimizing connections properly. Which command would you use to troubleshoot this situation?
A. show service-policy
B. show wccp routers
C. show ip access-lists
D. show route-map
Answer: B 
40. The Cisco WAAS design for your customer calls for the Central Manager to be deployed on the core WAE,
which is a Cisco WAE-612 with 2-GB 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. The
customer reports that the WAE is no longer accelerating traffic. 
What is the problem?
A. The device mode central-manager command must be issued before the device mode application-accelerator
command.
B. Central Manager is consuming too much CPU time on the WAE. The Central Manager service should be
implemented on a less-utilized edge WAE.
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C. At least 4 GB of RAM must be installed for the WAE to serve as both Central Manager and application
accelerator.
D. Central Manager and application accelerator cannot be deployed on the same WAE.
Answer: D 
41. Refer to the exhibit. Your customer has deployed a WAE in the data center. The servers that are being
optimized are on subnet 10.1.2.0/24, and the WAE has been configured with the IP address 10.1.2.50. The
customer has observed that routing loops have resulted from this configuration. 
How should the customer fix the problem? 
A. Configure a PBR access list to exclude the WAE IP address.
B. Configure a WCCPv2 redirect exclude directive.
C. Correct the configuration of the WCCPv2 service groups.
D. Redeploy the WAE on a different subnet or VLAN subinterface.
Answer: D 
42. During initial setup of the Central Manager WAE, at which point must a reload command be issued?
A. after running the initial setup script
B. after specifying the device mode
C. after issuing the copy run start command
D. after specifying the primary interface of the WAE
Answer: C 
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43. With Cisco WAAS, which two WCCPv2 service groups are used to make up the TCP Promiscuous service
group? (Choose two.)
A. 60
B. 61
C. 62
D. 89
E. 90
Answer: BC 
44. How can you monitor optimization statistics for a given application across multiple WAE devices?
A. Create a device group for all WAE devices on which that application is optimized.
B. Create a location group for all WAE devices on which that application is optimized.
C. Create a separate application traffic policy for each application.
D. Ensure that each application resides on a different subnet.
Answer: A 
45. How can you configure a WAE to reboot after a software image has been installed?
A. Configure the WAE manually by using the reload command.
B. Configure the WAE manually by using the "auto-reload" check box on the software files page.
C. The WAE should not be rebooted after a software image has been installed.
D. The WAE automatically reboots after a software image has been installed.
Answer: B 
46. In a WAAS Application Traffic Policy, what are three valid match conditions for traffic classifiers? (Choose
three.)
A. IP address
B. routed protocol
C. routing
D. subnet
E. TCP port
F. UDP port
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Answer: ADE 
47. A WAE device recently registered against a Central Manager. What must you do before the WAE can receive a
policy and interact with other WAE devices?
A. Specify a primary interface.
B. Assign an IP address.
C. Specify the device group.
D. Activate the device.
Answer: D 
48. The command show wccp services displays what?
A. the routers that are registered with the WCCP service of the WAE
B. the WAE appliances that are registered with the router WCCP service
C. the WCCP service groups that are configured on the router
D. the WCCP service groups that are configured on the WAE
Answer: D 
49. Which command verifies that a WAE in-line card is intercepting traffic from the correct VLANs?
A. show wccp services
B. show ip access-lists
C. show int inlinegroup x/y
D. show wccp vlans inline
Answer: C 
50. Which feature of Central Manager specifies the configuration items that a user can see?
A. roles
B. policy maps
C. system settings
D. authentication providers
Answer: A