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Cisco 642-655 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Troubleshooting WAAS Deployments | 15% | - Optimization failures and performance problems - Connectivity and authentication issues - System errors and fault isolation - Redirection issues and verification |
| Topic 2: Installation and Initial Configuration | 20% | - Redirection methods configuration - Central Manager setup and device registration - Hardware and software installation - Basic network and interface configuration |
| Topic 3: Optimization Technologies and Configuration | 25% | - Application-specific acceleration: HTTP, CIFS, SSL, Video - Policy creation and classification rules - TCP optimization and flow control - DRE (Data Redundancy Elimination) and LZ compression |
| Topic 4: Monitoring, Reporting and Maintenance | 20% | - Software upgrades and backups - Logging, alerts and reporting - Central Manager monitoring dashboards - CLI commands for status and statistics |
| Topic 5: Cisco WAAS Architecture and Components | 20% | - Deployment models: In-path, WCCP, PBR, One-Arm, Two-Arm - WAE, Central Manager, and WAAS Express components - WAAS solution overview and benefits - Licensing and feature sets |
Cisco WAASFE-Wide Area Application Services for Field Engineers Sample Questions:
What are two ways firewalls can cause WAAS performance issues? (Choose two.)
- A. Firewalls see that the TCP sequence number has shifted and drop the connection
- B. Firewalls slow the traffic going through the WAAS devices
- C. Only TFO will work through firewalls
- D. Auto discovery uses the firewall scrub of the TCP options
Correct Answer: A,D π³οΈ
The command show wccp services displays what?
- A. The routers that are registered with the WCCP service of the WAE
- B. The WCCP service groups that are configured on the router
- C. The WCCP service groups that are configured on the WAE
- D. The WAE appliances that are registered with the router WCCP service
Correct Answer: C π³οΈ
When must WCCPv2 redirect exclusion be configured on the routers?
- A. When redirect in is used on the LAN interface only
- B. When redirect in is used on the WAN interface only
- C. When redirect out is used on any interface
- D. When redirect in is used on any interface
Correct Answer: C π³οΈ
Cisco WAAS is a powerful application acceleration and WAN optimization solution that accelerates the performance of any TCP-based application delivered across a WAN. Which two benefits does the WAAS integration feature on the Cisco IOS Intrusion Prevention System and Cisco IOS Firewall allow? (Choose two.)
- A. This WAAS feature supports TCP optimization used for distinguishing distant WAAS endpoints
- B. This feature is the only way to speed up WAAS
- C. The correct Cisco IOS router feature will determine distant WAAS devise for optimization
- D. This feature permits the sequence number jump initiated by Cisco WAAS
Correct Answer: A,D π³οΈ
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 autodiscovery failed with the remote WAE
- B. The connection is not being optimized because the remote WAE had different TFO optimizations configured than the local WAE
- C. The connection is not being optimized because the configured optimizations are not supported on the peer WAE
- D. The connection is being optimized correctly, but no traffic has been optimized yet
Correct Answer: A π³οΈ
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