CN0-201 Online Practice Questions and Answers

In which of the following service classes can you divide the network traffic before implementing QoS? Each correct answer represents a part of the solution. Choose three.

A. Voice payload

B. Voice and video signal traffic

C. Video payload

D. Data traffic

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

John works as a Sales Engineer for KBC Inc. He has been assigned a project to install a soft phone on different computers. One of the computer systems on the LAN is experiencing problems in voice quality.

Which of the following actions should John perform to resolve the problem?

A. Add more system RAM.

B. Upgrade the network cable to category 6 cabling.

C. Upgrade the computer system.

D. Upgrade the Network Interface Card (NIC).

Which of the following standards designates international numbering plans for devices connected to the PSTN?

A. ITU-T

B. T-161

C. IETF

D. E.164

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. DS1

B. ISDN BRI

C. ISDN PRI

D. DS0

Which of the following protocols provides sequence numbers to VoIP packets?

A. TCP

B. RTP

C. UDP

D. SCCP

Which of the following layers of the OSI model is responsible for converting between ASCII and EBCDIC?

A. Presentation Layer

B. Application Layer

C. Network Layer

D. Transport Layer

You work as a Network Administrator for NetTech Inc. The company has a wireless local area network (WLAN). You want to prevent your wireless access point from being accessed by intruders.

What will you do to accomplish the task?

A. Implement WEP.

B. Implement IPSec.

C. Implement auditing.

D. Implement SSL.

Which of the following refers to a speech processing mechanism that is used to achieve silence suppression?

A. Voice Response Terminal (VRT)

B. Voice Activation Terminal (VAT)

C. Voice Analysis Division (VAD)

D. Voice Activity Detection (VAD)

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