Cisco 642-648 : Deploying Cisco ASA VPN Solutions (VPN v2.0)

  • Exam Code: 642-648
  • Exam Name: Deploying Cisco ASA VPN Solutions (VPN v2.0)
  • Updated: Jul 22, 2026     Q & A: 121 Questions and Answers

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Cisco 642-648 Exam Syllabus Topics:

SectionObjectives
Topic 1: VPN Advanced Features- High availability and redundancy
  • 1. Stateful failover concepts
    • 2. Failover for VPN sessions
      - NAT traversal and firewall considerations
      • 1. NAT-T configuration
        • 2. Access control policies for VPN traffic
          Topic 2: Authentication and Authorization- AAA integration
          • 1. User authentication methods
            • 2. RADIUS and TACACS+ integration
              - Certificate-based authentication
              • 1. PKI deployment for VPNs
                • 2. Certificate validation and trustpoints
                  Topic 3: Cisco ASA VPN Configuration- Remote Access VPN
                  • 1. Clientless SSL VPN basics
                    • 2. SSL VPN (AnyConnect) configuration
                      - Site-to-Site VPN configuration
                      • 1. Routing for VPN traffic
                        • 2. Crypto maps and tunnel groups
                          Topic 4: VPN Fundamentals- IPsec concepts and architecture
                          • 1. ESP and AH protocols
                            • 2. Encryption and hashing algorithms
                              • 3. IKEv1 and IKEv2 negotiation basics
                                Topic 5: Troubleshooting and Monitoring- Performance and connectivity issues
                                • 1. MTU and fragmentation issues
                                  • 2. IKE negotiation troubleshooting
                                    - VPN diagnostics
                                    • 1. Log analysis for VPN failures
                                      • 2. Debug commands on Cisco ASA

                                        Cisco Deploying Cisco ASA VPN Solutions (VPN v2.0) Sample Questions:

                                        1. When deploying clientless SSL VPN advanced application access, the administrator needs to collect information about the end-user system. Which three input parameters of an end- user system are important for the administrator to identify? (Choose three.)

                                        A) types of applications and application protocols that are supported
                                        B) types of operating systems that are supported on the end-user system
                                        C) type of antivirus software that is supported on the end-user system
                                        D) the local privilege level of the remote user
                                        E) types of encryption that are supported on the end-user system
                                        F) types of wireless security that are applied to the end-user tunnel interface


                                        2. Refer to the exhibit.

                                        A junior network engineer configured the corporate Cisco ASA appliance to accommodate a new temporary worker. For security reasons, the IT department wants to restrict the internal network access of the new temporary worker to the corporate server, with an IP address of 10.0.4.10. After the junior network engineer finished the configuration, an IT security specialist tested the account of the temporary worker. The tester was able to access the URLs of additional secure servers from the WebVPN user account of the temporary worker.
                                        What did the junior network engineer configure incorrectly?

                                        A) The ACL was configured incorrectly.
                                        B) Network browsing was not restricted on the temporary worker group policy.
                                        C) The ACL was applied incorrectly or was not applied.
                                        D) Network browsing was not restricted on the temporary worker user policy.


                                        3. A temporary worker must use clientless SSL VPN with an SSH plug-in, in order to access the console of an internal corporate server, the projects.xyz.com server. For security reasons, the network security auditor insists that the temporary user is restricted to the one internal corporate server, 10.0.4.18. You are the network engineer who is responsible for the network access of the temporary user.
                                        What should you do to restrict SSH access to the one projects.xyz.com server?

                                        A) Configure access-list temp_user_acl extended permit TCP any host 10.0.4.18 eq 22.
                                        B) Configure access-list temp_acl webtype permit url ssh://10.0.4.18.
                                        C) Configure a plug-in SSH bookmark for host 10.0.4.18, and disable network browsing on the clientless SSL VPN portal of the temporary worker.
                                        D) Configure access-list temp_user_acl standard permit host 10.0.4.18 eq 22.


                                        4. Refer to the exhibit.

                                        What is the likely cause of the failure?

                                        A) There are mismatched tunnel groups.
                                        B) A msgid of 0 signifies a zero payload, indicating that the peer did not send any IKE proposals.
                                        C) The remote peer did not respond to the 11 notifications that were sent by the originating IPsec endpoint.
                                        D) There are mismatched IKE policies.


                                        5. DRAG DROP


                                        Solutions:

                                        Question # 1
                                        Answer: A,B,D
                                        Question # 2
                                        Answer: C
                                        Question # 3
                                        Answer: B
                                        Question # 4
                                        Answer: D
                                        Question # 5
                                        Answer: Only visible for members

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