Free CREST CREST-CPSA Exam Questions

Become CREST Certified with updated CREST-CPSA exam questions and correct answers

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Total 359 Questions | Updated On: Apr 01, 2026

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Question 1

What are the SIP and RTP protocols used for in VoIP?

A : SIP and RTP are competing protocols that are both used for audio data transmission.

B : RTP is used for setting up and closing down calls, and SIP is used for audio data transmission.

C : SIP and RTP are competing protocols that are both used for setting up and tearing down calls.

D : SIP is used for setting up and closing down calls, and RTP is used for audio data transmission.

E : SIP is used for setting up and closing down calls, but RTP is nothing to do with VoIP.

Answer: D

Question 2

Where on the OSI Layer is TCP?

A : Transport Layer (4)

B : Physical Layer (1)

C : Network Layer (3)

D : Session Layer (5)

E : Data Link Layer (2)

Answer: A

Question 3

Which string in a NetBIOS name indicates that the specified host is a Master Browser?

A : MS-BROWSER

B : MASTERBROWSER

C : MSBROWSE

D : MASTER-BROWSER

E : MS-BROWSE

Answer: C

Question 4

Which of these is not a valid IP address?

A : 10.0.0.1

B : 195.32.67.14

C : 192.168.0.1

D : 192.168.300.1

E : 172.16.3.7

Answer: D

Question 5

What is the primary purpose of HSRP?

A : Redundancy and failover

B : Network Address Translation (NAT)

C : Dynamic routing

D : Quality of Service (QoS) management

E : Load balancing

Answer: A

Page: 1 / 72

Total 359 Questions | Updated On: Apr 01, 2026

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