CompTIA CompTIA CTT+ CN0-201 Questions & Answers

• Question 21:

  Which of the following DoS attacks attempts to block service or reduce activity on a host by sending ping requests directly to the victim?

  A. Teardrop attack

  B. Ping flood attack

  C. Land attack

  D. SYN flood attack

  Correct Answer: B

• Question 22:

  Which of the following terms is also used for the H.263 protocol?

  A. Audio conferencing

  B. Data sharing

  C. Call recording

  D. Video conferencing

  Correct Answer: D

• Question 23:

  Which of the following is used by a technician to look at the contents of ICMP messages?

  A. Traceroute

  B. Cable analyzer

  C. Ping

  D. Protocol analyzer

  Correct Answer: D

• Question 24:

  Which of the following protocols defines store-and-forward faxing?

  A. T.37

  B. T.127

  C. T.30

  D. T.128

  Correct Answer: A

• Question 25:

  Realtime Transport Protocol (RTP) operates on top of various protocols. Which of the following protocols is commonly implemented with RTP?

  A. NTP

  B. UDP

  C. STP

  D. SIP

  Correct Answer: B

• Question 26:

  What is the traditionally defined value for the resulting data rate of Pulse Code Modulation (PCM)?

  A. 64 Kbps

  B. 32 Kbps

  C. 16 Kbps

  D. 128 Kbps

  Correct Answer: A

• Question 27:

  Which of the following T.120 recommendations includes multipoint communication service?

  A. T.122

  B. T.121

  C. T.123

  D. T.124

  Correct Answer: A

• Question 28:

  Which of the following codecs mostly produces the highest quality sound?

  A. G.726

  B. G.722

  C. G.727

  D. G.711

  Correct Answer: B

• Question 29:

  Which of the following priority values of 802.1p defines network control?

  A. 6

  B. 4

  C. 5

  D. 7

  Correct Answer: D

• Question 30:

  According to the G.711 codec, how many analog samples occur per second during Pulse Code Modulation (PCM)?

  A. 9000

  B. 8000

  C. 10,000

  D. 7000

  Correct Answer: B