HikeLetter | PMP Training & Certification Online Course | Project Management Learning

1

[SIP call setup] During a new site deployment, an engineer is troubleshooting this requirement: A collaboration engineer sees a SIP INVITE leave the endpoint but no call is established. Which message most directly indicates that the called party has accepted the session?

A. 200 OK B. Restart all collaboration servers without checking the configuration C. Disable security and quality-of-service controls permanentlyDisable security and quality-of-service controls permanently D. Replace the entire collaboration platform regardless of evidence

2

[SIP transaction] During a new site deployment, an engineer is troubleshooting this requirement: After receiving a 200 OK for an INVITE, which SIP message confirms receipt of that final response?

A. Restart all collaboration servers without checking the configuration B. Disable security and quality-of-service controls permanently C. Replace the entire collaboration platform regardless of evidence D. ACK

3

[SIP registration] During a new site deployment, an engineer is troubleshooting this requirement: A phone must advertise its current contact address to a registrar. Which SIP method is used?

A. Restart all collaboration servers without checking the configuration B. Disable security and quality-of-service controls permanently C. REGISTER D. Replace the entire collaboration platform regardless of evidence

4

[SIP provisional response] During a new site deployment, an engineer is troubleshooting this requirement: A SIP server is still alerting the destination and wants to report call progress. Which response is appropriate?

A. Restart all collaboration servers without checking the configuration B. 180 Ringing C. Disable security and quality-of-service controls permanently D. Replace the entire collaboration platform regardless of evidence

5

[SIP authentication] During a new site deployment, an engineer is troubleshooting this requirement: A SIP request receives a 401 response with a WWW-Authenticate challenge. What should the client generally do?

A. Retry with valid authentication credentials B. Restart all collaboration servers without checking the configuration C. Disable security and quality-of-service controls permanently D. Replace the entire collaboration platform regardless of evidence

6

[SIP transport] During a new site deployment, an engineer is troubleshooting this requirement: An administrator needs reliable, ordered transport for SIP signaling across a network. Which transport can provide it?

A. Restart all collaboration servers without checking the configuration B. Disable security and quality-of-service controls permanently C. Replace the entire collaboration platform regardless of evidence D. TCP

7

[SIP TLS] During a new site deployment, an engineer is troubleshooting this requirement: Which transport is commonly used to protect SIP signaling with TLS?

A. Restart all collaboration servers without checking the configuration B. Disable security and quality-of-service controls permanently C. SIPS over TLS D. Replace the entire collaboration platform regardless of evidence

8

[SDP media negotiation] During a new site deployment, an engineer is troubleshooting this requirement: During SIP call setup, which protocol describes media types, codecs, ports, and addresses?

A. Restart all collaboration servers without checking the configuration B. SDP C. Disable security and quality-of-service controls permanently D. Replace the entire collaboration platform regardless of evidence

9

[RTP media] During a new site deployment, an engineer is troubleshooting this requirement: Which protocol typically carries real-time audio packets after a VoIP call is established?

A. RTP B. Restart all collaboration servers without checking the configuration C. Disable security and quality-of-service controls permanently D. Replace the entire collaboration platform regardless of evidence

10

[RTCP monitoring] During a new site deployment, an engineer is troubleshooting this requirement: Which protocol provides statistics and feedback associated with RTP media streams?

A. Restart all collaboration servers without checking the configuration B. Disable security and quality-of-service controls permanently C. Replace the entire collaboration platform regardless of evidence D. RTCP

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