CN0-201 Online Practice Questions and Answers

Andrew has received a call from a user on a land line indicating that she cannot place calls with her VoIP softphone, but she can check her e-mail.

What is the first step that Andrew should take to resolve this problem?

A. Execute ping command on her PC.

B. Log the problem.

C. Execute the ipconfig command on her PC.

D. Instruct her to ping the call manager.

Session Border Controllers (SBCs) commonly maintain full session state.

Which of the following functions are offered by a Session Border Controller? Each correct answer represents a complete solution. Choose all that apply.

A. Regulatory

B. Availability

C. Statistics

D. Connectivity

E. Quality of service

F. Security

Mike works as a Sales Engineer for KBC Inc. He needs a device that will allow him to create a bridge between several users and allow the same video and voice stream to be shared.

Which of the following devices should Mike use to meet this requirement?

A. Packet filtering firewall

B. Gatekeeper

C. Session Border Controller (SBC)

D. Multipoint Control Unit (MCU)

For outside cabling, which of the following cable types is most immune to the effects of lightning?

A. Coaxial

B. Unshielded Twisted Pair (UTP)

C. Shielded Twisted Pair (STP)

D. Fiber optic

John works as a Network Administrator for NetPerfect Inc. The company has a Windows-based network. John has been assigned a project to build a network for the sales department of the company. It is important for the LAN to continue working even if there is a break in the cabling.

Which of the following topologies should John use to accomplish the task?

A. Mesh

B. Star

C. Bus

D. Ring

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 auditing.

C. Implement IPSec.

D. Implement SSL.

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. Preference

C. No digit-strip

D. Forward digits

E. Prefix

You work as a Network Administrator for Tech Perfect Inc. The company has a TCP/IP-based routed network. The network is spanned over large geographical area. Users report that they are unable to access a server on the remote segment. In order to troubleshoot the issue, you are required to determine the path from a host on your segment to the server as well as the delay and packet loss on the route.

Which of the following tools can you use to accomplish the task?

A. PING

B. TRACERT

C. PATHPING

D. IPCONFIG

John works as a Technician for Blue Tel Inc. He notices errors in a routing table. Which of the following layers of the OSI model is associated with this situation?

A. Application Layer

B. Data Link Layer

C. Transport Layer

D. Network Layer

John works as a Network Administrator for NetPerfect Inc. The company has a Windows-based network. John has been assigned a project to build a network for the sales department of the company. It is important for the LAN to continue working even if there is a break in the cabling.

Which of the following topologies should John use to accomplish the task?

A. Star

B. Ring

C. Mesh

D. Bus

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. Bandwidth

B. Latency

C. Packet loss

D. Jitter

Which of the following describes the process of not transmitting information over the network when one of the parties involved in a telephone call is not speaking to reduce bandwidth consumption?

A. Silence suppression

B. OFDM

C. PCM

D. QoS

Which of the following standards defines call intrusion supplementary service?

A. H.450.10

B. H.450.12

C. H.450.9

D. H.450.11

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

What is the highest Mean Opinion Score (MOS) value?

A. 3

B. 2

C. 5

D. 4