CompTIA CompTIA CTT+ CN0-201 Questions & Answers

• Question 161:

  Which of the following attacks CANNOT be detected by an Intrusion Detection System (IDS)? Each correct answer represents a complete solution. Choose all that apply.

  A. E-mail spoofing

  B. Shoulder surfing

  C. Port scan attack

  D. Denial-of-Service (DoS) attack

  Correct Answer: AB

• Question 162:

  Which of the following are examples of interactive communication? Each correct answer represents a complete solution. Choose all that apply.

  A. Fax

  B. Phone call

  C. Video Conferencing

  D. E-mail

  Correct Answer: BC

• Question 163:

  You want to connect three PBX units together that are at separate locations. One is in Newyork, GC.

  The second is in Miami, KK, and the third is in Austin, QY.

  What kind of trunk lines will you use to create the connections required?

  A. CO trunks

  B. ISL trunks

  C. Tie trunks

  D. Virtual trunks

  Correct Answer: C

• Question 164:

  Which of the following commands are valid only under the POTS dial peers? Each correct answer represents a complete solution. Choose all that apply.

  A. Num-exp

  B. Forward digits

  C. No digit-strip

  D. Prefix

  E. Preference

  Correct Answer: BCD

• Question 165:

  Mike works as a Sales Engineer for Umbrella Inc. The employees of the company are reporting problems with voice delays on telephone calls on the corporate VoIP network.

  What is the most likely cause of this problem?

  A. The destination number is not contained in the local dial plan.

  B. Voice codec is not able to compress the voice stream into pack.

  C. Echo cancellation has been enabled on the voice coders without configuring phase shifting.

  D. Large data packets are causing the voice packets to exceed their delay budget.

  Correct Answer: D

• Question 166:

  John works as a Network Administrator in ABC Inc. He complains that he is unable to communicate with a remote computer. He suspects that data loss is occurring at one of the routers that are routing the packets to the destination computer. He wants to test the route that the packets follow from his computer to the destination computer. He also wants to view the information about the packet losses at every router along the way.

  Which of the following commands will he use to accomplish this?

  A. PING

  B. PATHPING

  C. NET VIEW

  D. TRACERT

  Correct Answer: B

• Question 167:

  Voice over IP is an application that requires efficient use of bandwidth and reliability. VoIP must not suffer the delays that can be seen at times with Web sites and Web applications.

  Which technology can be used to help ensure the efficient transport of VoIP traffic?

  A. QoS

  B. RTP

  C. DNS

  D. RSTP

  Correct Answer: A

• Question 168:

  Adam works as a Technician for PassGuide Inc. He has been asked to recommend an appropriate network bandwidth for a medium to large business. The company will use it for the IP phones, as well as for the data connection.

  Which of the following would Adam recommend?

  A. DS0

  B. ISDN PRI

  C. DS1

  D. ISDN BRI

  Correct Answer: B

• Question 169:

  Which of the following parameters are generally used to describe quality of service for IP-based voice and video? Each correct answer represents a complete solution. Choose all that apply.

  A. Jitter

  B. Bandwidth

  C. Latency

  D. Packet loss

  Correct Answer: ABCD

• Question 170:

  You are a Voice Technologies Administrator and connecting a VoIP network to the PSTN. You are using

  E.164 standard address for your telephone system.

  Which of the following are the components of E.164 numbering plan? Each correct answer represents a part of the solution. Choose three.

  A. Subscriber number

  B. Country code

  C. IP address

  D. National destination code

  Correct Answer: ABD