Cisco 642-279 Exam : Installing TelePresence Video Immersive Systems Exam

Cisco 642-279 exam
  • Exam Code: 642-279
  • Exam Name: Installing TelePresence Video Immersive Systems Exam
  • Updated: Sep 14, 2026
  • Q & A: 41 Questions and Answers
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Cisco 642-279 Exam Syllabus Topics:
SectionObjectives
Topic 1: Cisco TelePresence Infrastructure- Core infrastructure components
  • 1. Cisco TelePresence Server and MCU concepts
    • 2. Call control systems and registrars
      Topic 2: Network Integration- Signaling and protocols
      • 1. Media negotiation and interoperability
        • 2. SIP and H.323 configuration
          - Network performance
          • 1. QoS for real-time video traffic
            • 2. Bandwidth and latency considerations
              Topic 3: Cisco TelePresence Immersive Systems Overview- System architecture and components
              • 1. Immersive TelePresence room design concepts
                • 2. Codecs, endpoints, and display systems
                  Topic 4: Troubleshooting and Maintenance- Operational maintenance
                  • 1. Performance monitoring and logs
                    • 2. Firmware updates and lifecycle management
                      - System diagnostics
                      • 1. Audio/video synchronization issues
                        • 2. Connectivity and registration faults
                          Topic 5: Installation and Configuration- Hardware installation
                          • 1. Camera and display alignment
                            • 2. Cabinet setup and physical deployment
                              - System configuration
                              • 1. Endpoint configuration and provisioning
                                • 2. Control system integration
                                  Cisco Installing TelePresence Video Immersive Systems Sample Questions:
                                  Question #1

                                  What is the recommend latency needed in order to provide a user with a good Telepresence experience?

                                  • A. >200ms -250ms
                                  • B. <1Q0ms
                                  • C. >250ms
                                  • D. >100ms -200ms
                                  Reveal Solution  Discussion  0

                                  Correct Answer: D  🗳️

                                  Question #2

                                  What must be done if the VCS gatekeeper requires H.235 authentication for registrations?

                                  • A. You must manually configure the authentication credentials for each codec.
                                  • B. You must manually configure the authentication credentials on the center codec only.
                                  • C. Do nothing because the TCU can bypass the authentication mechanism.
                                  • D. Do nothing because gatekeepers do not require authentication.
                                  Reveal Solution  Discussion  0

                                  Correct Answer: A  🗳️

                                  Question #3

                                  Which method can you use to remotely issue commands to the TCU?

                                  • A. an SCP client such as WinSCP
                                  • B. an SSH client such as PuTTY
                                  • C. any web browser that supports HTTPS
                                  • D. a Telnet client
                                  Reveal Solution  Discussion  0

                                  Correct Answer: B  🗳️

                                  Question #4

                                  Which Cisco Telepresence Server diagnostic tool shows the most recent shutdown and upgrade events?

                                  • A. conference status
                                  • B. activated feature status
                                  • C. system status
                                  • D. system log
                                  Reveal Solution  Discussion  0

                                  Correct Answer: D  🗳️

                                  Question #5

                                  Which of these is a Cisco Telepresence Server feature?

                                  • A. understands immersive Cisco Telepresence and intelligently arranges participant panes
                                  • B. connects to standards-based video conferencing systems from some vendors
                                  • C. full high-definition transcoding on some ports
                                  • D. supports AES 28-bit encryption
                                  Reveal Solution  Discussion  0

                                  Correct Answer: A,C  🗳️

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