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350-801 · Question #41

Refer to the exhibit. Which option describes the security encryption status of this active call on a Cisco IP phone?

The correct answer is D. encrypted call signaling and media. The question asks to interpret the security encryption status of an active call on a Cisco IP phone based on an implied exhibit, where a padlock icon typically indicates full encryption.

Protocols and Endpoints

Question

Refer to the exhibit. Which option describes the security encryption status of this active call on a Cisco IP phone?

Options

  • Aunencrypted call signaling and media
  • Bencrypted call signaling but unencrypted call media
  • Cencrypted call media but unencrypted call signaling
  • Dencrypted call signaling and media
  • ENot enough information provided to answer this question.

How the community answered

(44 responses)
  • A
    2% (1)
  • C
    7% (3)
  • D
    89% (39)
  • E
    2% (1)

Why each option

The question asks to interpret the security encryption status of an active call on a Cisco IP phone based on an implied exhibit, where a padlock icon typically indicates full encryption.

Aunencrypted call signaling and media

This would typically be indicated by the absence of security icons or an open lock icon, if present.

Bencrypted call signaling but unencrypted call media

This scenario might show a different icon or partial indication; a single padlock usually implies both.

Cencrypted call media but unencrypted call signaling

Similar to B, this scenario would likely have a different visual indicator than a single padlock for full encryption.

Dencrypted call signaling and mediaCorrect

Cisco IP phones display specific icons to indicate the security status of a call. A padlock icon typically indicates that both the call signaling (via SIP TLS) and the call media (via SRTP) are encrypted, providing end-to-end security for the communication.

ENot enough information provided to answer this question.

In the context of an exam question where an exhibit is explicitly referenced, there is usually sufficient information provided by the exhibit itself, making this choice incorrect.

Concept tested: Cisco IP phone security icons for call encryption

Source: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cuipph/all_models/security_features/9_2_1/CUIP_BK_S7B2D054_00_security-features-for-cisco-unified/CUIP_BK_S7B2D054_00_security-features-for-cisco-unified_chapter_01.html

Topics

#IP Phone Security#Call Encryption#SRTP#SIP TLS

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