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The IS management of a multinational company is considering upgrading its existing virtual private
network (VPN) to support voice-over IP (VoIP) communications via tunneling. Which of the
following considerations should be PRIMARILY addressed?

A.
Reliability and quality of service (QoS)

B.
Means of authentication

C.
Privacy of voice transmissions

D.
Confidentiality of data transmissions

Explanation:
The company currently has a VPN; issues such as authentication and confidentiality have been
implemented by the VPN using tunneling. Privacy of voice transmissions is provided by the VPN
protocol. Reliability and QoS are, therefore, the primary considerations to be addressed.

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