Implementing Cisco Collaboration Devices (CICD, legacy) — Question 109

An administrator wants to verify that a new PRI is properly connected to the PSTN status. Which Layer 2 status should be seen?

Answer options

• A. MULTIPLE_FRAME_ESTABLISHED
• B. TEI_ASSIGNED
• C. LINK_UP
• D. CONTROLLER_UP

Correct answer: A

Explanation

The correct answer is A, MULTIPLE_FRAME_ESTABLISHED, which indicates that multiple frames are successfully being transmitted over the PRI connection. Options B, TEI_ASSIGNED, shows that a Terminal Endpoint Identifier has been allocated, but it does not confirm the connection status. Option C, LINK_UP, suggests a physical link is active, and D, CONTROLLER_UP, indicates the controller is operational, but neither confirms the proper connectivity to the PSTN like option A does.