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Cisco 642-655 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Installation and Deployment | 20% | - Network integration and routing considerations - WAAS device installation and initial setup |
| Topic 2: WAAS Architecture and Core Concepts | 25% | - Traffic optimization principles - WAAS system components and architecture overview - Deployment models (centralized and distributed) |
| Topic 3: Monitoring, Maintenance, and Troubleshooting | 20% | - Log analysis and system diagnostics - Fault isolation and troubleshooting workflows - Performance monitoring tools and metrics |
| Topic 4: Integration with Cisco Infrastructure | 10% | - Policy coordination with enterprise network services - Integration with Cisco routers and WAN edge devices |
| Topic 5: Application Acceleration and Optimization | 25% | - Application-specific optimization policies - Caching and data reduction techniques - Protocol optimization (TCP, CIFS, HTTP) |
Cisco WAASFE-Wide Area Application Services for Field Engineers Sample Questions:
1. 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 being optimized correctly, but no traffic has been optimized yet
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 not being optimized because the remote WAE had different TFO optimizations configured than the local WAE
2. How should you configure authentication when your customer wants to use Active Directory to manage authentication for WAE administrative users?
A) Configure Windows domain as the primary login method in Central Manager
B) Configure TACACS+ services on the Active Directory server and set TACACS+ as the primary login method in Central Manager
C) Configure RADIUS services on the Active Directory Server and set RADIUS as the primary login method in Central Manager
D) Configure LDAP services on the Active Directory server and set LDAP as the primary login method in Central Manager
3. 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-manger command to enable Central Manager Service. The customer reports that the WAE is no longer accelerating traffic. What is the problem?
A) At least 4 GB of RAM must be installed for the WAE to serve as both Central Manager and Application Accelerator
B) Central Manager and Application Accelerator cannot be deployed on the same WAE
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
4. During a Cisco WAAS deployment, what should be checked first if your customer is reporting poor performance across all optimized applications?
A) Verify that duplex settings are configured correctly on all interfaces
B) Verify that PBR has a route map for each direction of traffic flow
C) Verify that only one Central Manager WAE is set to active
D) Verify that WCCP is configured with one service group in the path of each direction of traffic flow
5. When implementing Windows authentication for WAE management, what is the maximum allowable time skew between each WAE and the Windows domain controller?
A) 300 Seconds
B) 5 Seconds
C) 1 Second
D) 120 Seconds
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: A | Question # 3 Answer: B | Question # 4 Answer: A | Question # 5 Answer: A |






