Which of the following MOST applies to session initiation protocal (SIP) security?

The correct answer is C. It reuses security mechanisms derived from existing protocols.. Session Initiation Protocol (SIP) is an application layer protocol that is used to establish, modify, and terminate multimedia sessions over the Internet. SIP does not support end-to-end security natively, but it reuses security mechanisms derived from existing protocols, such as

Submitted by rachelw· Mar 5, 2026Communication and Network Security

Question

Options

AIt leverages Hypertext Transfer Protocol (HTTP) over Transport Layer Security (TLS).
BIt requires a Public Key Infrastructure (PKI).
CIt reuses security mechanisms derived from existing protocols.
DIt supports end-to-end security natively.

How the community answered

(34 responses)

A
3% (1)
B
9% (3)
C
85% (29)
D
3% (1)

Explanation

Session Initiation Protocol (SIP) is an application layer protocol that is used to establish, modify, and terminate multimedia sessions over the Internet. SIP does not support end-to-end security natively, but it reuses security mechanisms derived from existing protocols, such as Transport Layer Security (TLS), Secure Real-time Transport Protocol (SRTP), and Internet Protocol Security (IPsec). SIP does not leverage Hypertext Transfer Protocol (HTTP) over TLS, nor does it require a Public Key Infrastructure (PKI).

Topics

#SIP security#VOIP security#protocol security#existing security mechanisms

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