江浙沪招生考试网

1. Which LAN traffic management feature is fully supported by Cisco WAAS?
A. intrusion detection system
B. QoS
C. NBAR
D. MPLS
Answer: B 
2. 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 
3. 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 
4. Which two options correctly identify the WAE file services integration modes available in Cisco WAAS?
(Choose two.)
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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 
5. 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 
6. Your customer has purchased multiple Cisco WAE appliances, but does not want to dedicate one WAE for
management purposes only. How would you advise this customer?
A. There must be at least one Central Manager available for configuration and management tasks.
B. The data center WAE can be used for both the Central Manager and Application Accelerator roles.
C. There is no need for a dedicated Central Manager; all configuration tasks can be performed on the application
accelerators using the WAE device CLI and GUI.
D. If one of the WAE appliances is configured as the Central Manager, then later, after all application accelerators
are registered and on line, the Central Manager WAE can be reconfigured as an application accelerator.
Answer: A 
7. When you size a Cisco WAAS solution, you should assume that how many of the total number of concurrent
TCP connections per user will be optimized?
A. 1-2
B. 4-7
C. 14-20
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D. 25-40
Answer: B 
8. When using PBR, what do you need to configure to enable failover?
A. QoS
B. MPLS
C. IP SLAs
D. NetFlow
Answer: C 
9. What are three benefits of using the Cisco WAE file blocking feature? (Choose three.)
A. eliminates data redundancy
B. reduces the use of network resources
C. minimizes the transfer of unsanctioned data
D. prevents multiple users from attempting to edit the same file
E. controls which file types are stored on the data center file server
F. ensures that files cannot be edited until they are synchronized between the branch and the data center
Answer: BCE 
10. Your customer is using firewalls. What must be permitted to pass through the firewalls in order to allow WAE
auto-discovery?
A. TCP options
B. TCP port 139
C. TCP port 445
D. TCP SYN-ACK with data
Answer: A 
11. Which two functions does the Central Manager provide in a Cisco WAAS environment? (Choose two.)
A. application acceleration
B. management of CIFS servers
C. application statistics monitoring
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D. configuration backup and restore
E. policy configuration and distribution
Answer: CE 
12. How does Cisco WAAS advanced compression DRE improve on traditional LZ compression?
A. by removing the transmission of previously-seen data
B. by pre-positioning often-used file segments on the edge WAE appliances
C. by comparing hashes of each file version to avoid unnecessary file synchronization
D. by implementing a more aggressive, hardware-intensive version of the LZ compression algorithm
Answer: A 
13. How can you monitor optimization statistics for a given application across multiple Cisco 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 
14. 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
Answer: ADE 
15. Your customer is using PBR as the interception method on its routers. Which mechanism would you
recommend to ensure WAE availability and failover if a WAE fails?
A. enable NetFlow to track WAE appliances
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B. enable IP SLAs to track WAE appliances
C. nothing, PBR automatically tracks WAE appliances
D. nothing, PBR does not support the tracking of WAE appliances
Answer: B 
16. Your customer wants to configure PortChannels on its Core WAE appliances to enable load balancing across
WAE interfaces. Which WAE deployment model must this customer use?
A. on-router one-arm
B. on-router two-arm
C. off-router one-arm
D. off-router two-arm
Answer: C 
17. How often does a Cisco WAE negotiate the policy to be used for a given connection?
A. every time a new client-server pair initiates communication
B. every time a TCP connection is established through the WAE
C. once, after which the WAE uses the policy for all connections
D. twice, once for outgoing and once for incoming traffic
Answer: B 
18. Which three features does Cisco WAAS provide to enable the consolidation of infrastructure from remote
offices into the data center? (Choose three.)
A. policy-based configuration
B. auto-discovery of CIFS servers
C. support for multiple virtual contexts
D. encryption of traffic between WAE appliances
E. transparent integration into existing networks
F. encapsulation of traffic between WAE appliances in GRE tunnels
Answer: ABE 
19. Which two policies are used by the CIFS acceleration component of Cisco WAAS? (Choose two.)
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A. CIFS Policy
B. WAFS Policy
C. Directory Mapping Policy
D. Connectivity Policy
E. Reconnection Policy
F. Connectivity Directive
Answer: AB 
20. In a Cisco WAAS solution, what is the role of the Catalyst 6500 ACE module?
A. to provide WAN optimization capabilities in the data center
B. to provide interception and load-balancing of WAE appliances in the data center
C. to perform application acceleration functions for CIFS applications
D. to support load balancing of large numbers of WAE appliances when deployed with WCCPv2
Answer: B 
21. Your customer is planning to deploy a pair of clustered Cisco WAE-7326 appliances in its data center. How
many RUs will it need?
A. 1
B. 2
C. 4
D. 8
Answer: C 
22. Which feature of Central Manager helps to simplify the configuration of large numbers of Cisco WAE
devices?
A. device groups
B. location groups
C. WAFS core clusters
D. Windows integration
Answer: A 
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23. Which two statements describe what is required for read-only disconnected mode to be automatically activated
during a prolonged WAAS disconnect? (Choose two.)
A. The WAE must be able to access a Windows Domain Controller.
B. The WAE must be configured for Windows authentication.
C. The WAE must be joined to the same workgroup as the Windows server.
D. The Windows server must be configured for operating in disconnected mode.
E. NTP services must be configured on the WAE appliances.
Answer: AB 
24. Which statement best describes the purpose of Cisco WAAS Transport Flow Optimization?
A. compress data
B. reduce packet loss
C. mask problematic WAN conditions
D. reduce congestion on low-bandwidth networks
Answer: C 
25. Which of these provide a logical grouping of traffic types to support the monitoring and collection of
statistics?
A. policy maps
B. baseline policies
C. traffic classifiers
D. application definitions
Answer: D 
26. Which statement best describes Cisco WAAS Transport Flow Optimization?
A. TFO is a data compression method.
B. TFO streamlines file locking semantics.
C. TFO optimizes TCP connections for client-server traffic.
D. TFO optimizes CIFS connections for client-server traffic.
Answer: C 
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27. Which two tools could you use to determine what percentage of WAN traffic will be optimized when you use
a Cisco WAAS deployment? (Choose two.)
A. SPAN
B. NBAR
C. Ethereal
D. IP SLAs
E. NetFlow
F. Tcpreplay
Answer: BE 
28. You should recommend PBR to a customer that requires which type of support?
A. symmetric routing
B. asymmetric routing
C. failover and load balancing
D. failover but not load balancing
Answer: D 
29. With Cisco WAAS advanced compression DRE, which three are functions of the DRE process? (Choose
three.)
A. TCP proxy
B. LZ compression
C. synchronization
D. pattern matching
E. data segment pre-positioning
F. fingerprint and chunk identification
Answer: CDF 
30. SACK improves performance for which type of traffic?
A. traffic on lossy networks
B. short-lived TCP connections
C. traffic on low-BDP networks
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D. traffic on high-BDP networks
Answer: A 
31. When must WCCPv2 redirect exclusion be configured on the routers?
A. when the redirect in command is used on any interface
B. only when the redirect in command is used on the LAN interface
C. only when the redirect in command is used on the WAN interface
D. when the redirect out command is used on any interface
E. only when the redirect out command is used on the LAN interface
F. only when the redirect out command is used on the WAN interface
Answer: D 
32. What two symptoms would you expect to observe in a TCP trace if a WAE that was optimizing connections
fails? (Choose two.)
A. All optimized TCP connections handled by that WAE are reset.
B. All TCP connections are taken over by the receiving node.
C. The secondary WAE takes over the connection and the receiving node sees nothing.
D. The receiving node sees segments with SEQ ACK numbers that it was not expecting.
E. The receiving node continues normally because it has a session to the originating node.
Answer: AD 
33. How often is the Cisco WAE running the edge file service able to cache previously-seen files to ensure the
files are not stale?
A. every hour
B. every time the file is opened
C. every time the file is modified
D. according to a user-specified schedule
Answer: B 
34. Your customer's service provider manages its WAN infrastructure. The customer wants to deploy Cisco WAAS
to accelerate file services for a small number of branch offices, but the service provider manages the routers at
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each site and your customer's terms of service prohibit the customer from customizing router configurations.
Which interception method should you recommend?
A. PBR
B. ACE
C. WCCPv2
D. inline card
Answer: D 
35. Cisco WAAS Traffic Flow Optimization provides benefits for which type of application data?
A. any TCP traffic
B. TCP traffic with repeated small data segments
C. TCP traffic with repeated compressed data segments
D. TCP traffic with repeated uncompressed data segments
Answer: A 
36. What happens if there are three Cisco WAE appliances in the data path of a connection?
A. The connection will not be optimized.
B. The last WAE in the path goes into pass-through mode for the connection.
C. The first WAE in the path goes into pass-through mode for the connection.
D. The middle WAE in the path goes into pass-through mode for the connection.
Answer: D 
37. Which of these parameters should you consider when selecting a WAE model for a Cisco WAAS deployment?
A. the number of users at each site
B. the total storage capacity of each application that will be optimized
C. the number of TCP connections that are being optimized by each WAE
D. the WAN bandwidth and number of TCP connections that are being optimized by each WAE
Answer: D 
38. Refer to the exhibit. Your customer has installed its data center WAE as shown. Which configuration change
would improve the performance of the WAE?
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A. change to a two-arm configuration
B. change to an off-router configuration
C. use PBR redirection instead of WCCPv2
D. create a PortChannel between the WAE and the router
Answer: A 
39. For optimization to occur, there must be a minimum of how many Cisco WAE appliances in the path between
the client and server?
A. 1
B. 2
C. 3
D. 4
Answer: B 
40. Refer to the exhibit. Which security feature would you use to prevent a worm outbreak in Extranet A from
crossing into Extranet B?
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A. VACLs
B. router ACLs
C. control plane policing
D. drop and shutdown thresholds
Answer: A 
41. Refer to the exhibit. This diagram illustrates your customer's edge WAE configuration. Which WCCPv2
interception configuration should you apply to the Serial0 interface? 
A. Redirect in / service group 61
B. Redirect in / service group 62
C. Redirect out / service group 61
D. Redirect out / service group 62
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Answer: B 
42. According to the Cisco Network Foundation Protection architecture, which security feature should be applied
at the access layer?
A. traffic rate limitation
B. control plane protection
C. anti-spoofing mechanisms
D. CPU and memory thresholds
Answer: A 
43. Your customer wants to use Active Directory to manage authentication for WAE administrative users. How
should you configure authentication in the Cisco WAAS Central Manager?
A. Configure Active Directory as the primary login method.
B. Configure LDAP services on the Active Directory server and set LDAP as the primary login method.
C. Configure RADIUS services on the Active Directory server and set RADIUS as the primary login method.
D. Configure TACACS+ services on the Active Directory server and set TACACS+ as the primary login method.
Answer: A 
44. Which two service groups are used when configuring a Cisco WAE as a "promiscuous" TCP device? (Choose
two.)
A. 60
B. 61
C. 62
D. 89
E. 90
Answer: BC 
45. How does Cisco WAAS support NBAR?
A. NBAR is not supported in Cisco WAAS environments.
B. No support is needed; NBAR is unaffected by Cisco WAAS integration.
C. The WAE appliances do not compress the first few packets of each connection.
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D. The WAE appliances do not compress connections that are marked for NBAR processing.
Answer: C 
46. Refer to the exhibit. Your customer has deployed a Cisco WAE in its 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. However,
routing loops have resulted from this configuration.  
How can the customer fix the problem? 
A. configure a WCCPv2 redirect exclude directive
B. correct the configuration of the WCCPv2 service groups
C. configure a PBR access list to exclude the WAE IP address
D. redeploy the WAE on a different subnet or VLAN subinterface
Answer: D 
47. When configuring adapter policies in a Cisco WAAS environment, what is the purpose of the EPM adapter?
A. to differentiate priority levels on a congested link
B. to aggregate application traffic statistics
C. to specify the traffic associated with an optimization
D. to identify an application's dynamically assigned port number
Answer: D 
48. Refer to the exhibit. Your customer needs to be able to support 1000 optimized TCP connections at the edge
and 4000 optimized TCP connections at the data center, with a 155-Mbps OC-3 link into the data center. Which
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hardware platforms would you recommend? 
A. WAE-512 with 1GB of RAM and WAE-612 with 2GB of RAM
B. WAE-512 with 2GB of RAM and WAE-612 with 2GB of RAM
C. WAE-512 with 1GB of RAM and WAE-612 with 4GB of RAM
D. WAE-512 with 2GB of RAM and WAE-612 with 4GB of RAM
Answer: D 
49. Which of these assign an action to be taken against traffic that matches a criterion?
A. policy maps
B. baseline policies
C. traffic classifiers
D. application definitions
Answer: A 
50. In a Cisco WAAS implementation, how is the DRE database partitioned into contexts?
A. One context is provisioned for each file server.
B. One context is provisioned for each application.
C. One context is provisioned for each client-server pair.
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D. One context is provisioned for each connected pair of WAE appliances.
Answer: D