CN0-201 Online Practice Questions and Answers

Adam works as a Sales Engineer for Umbrella Inc. One of his customers complains that the PBX is getting reset several times in a day. Adam finds that the power LEDs of PBX are fluttering. He suspects that faulty power supply is the cause of this problem.

Which of the following troubleshooting tools should Adam use to verify these suspicions?

A. Continuity tester

B. Line tester

C. Volt meter

D. T-BERD 4000

You have just set up a wireless network for customers at a coffee shop. Which of the following are good security measures to implement?

Each correct answer represents a complete solution. Choose two.

A. Not broadcasting SSID

B. MAC filtering the router

C. Using WEP encryption

D. Using WPA encryption

Which of the following components of a VoIP network allows users to view video streams and hear audio that originates at a remote user station?

A. Call agent

B. MCU

C. IP Phones

D. Videoconference station

Cisco Unified Contact Center is used to distribute calls to groups and agents in organizations. It uses computer telephony integration (CTI). What is the function of CTI?

A. Popping up a window on the user's computer screen with caller details

B. Preventing users' computers from unwanted intrusions

C. Rejecting unwanted calls

D. Scheduling calls to specific users

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. ISDN BRI

B. DS1

C. DS0

D. ISDN PRI

Henry works as a Sales Engineer for BlueWells Inc. Sam, a customer, has asked him to create a solution that allows an application to be shared across the internet. The solution should be

extensible and based on industry standards. The solution should not use a proprietary protocol and the application should be delivered to multiple recipients at the same time.

The solution should also be robust, as clients will be using the application from Macintosh, Windows, and Linux systems.

Which of the following protocols should Henry choose to fulfill Sam's requirement?

A. T.37

B. T.120

C. H.323

D. SIP

You work as a technician for McNeil Inc. You want to capture packets linked to SIP and HTTP using the same application.

Which of the following monitoring tools will you use to accomplish the task?

A. SIP analyzer

B. Spectrum analyzer

C. Traffic generator

D. Protocol analyzer

Mike works as a Technician for Umbrella Inc. The company is using symmetric Network Address Translation (NAT) in their network. Mike requires a workaround for the SIP devices. Mike is using IP phones from multiple vendors, as well as open source SIP clients.

Which of the following solutions will work to allow the SIP implementation to pass through the NAT solution?

A. TURN

B. UPnP

C. 802.1p

D. STUN

Fill in the blank with the appropriate word.

The ____________ is composed of the local loop, the central office, and the SS7 network.

A. PSTN

Which of the following are the advantages of the Diffserv model? Each correct answer represents a complete solution. Choose two.

A. Highly efficient tools

B. Large number of service classes

C. High scalability

D. Admission control for each request

Which of the following provides users the ability to consistently access multiple message types through a single user interface?

A. Unified messaging

B. SIP presence

C. Chatting

D. Instant messaging

Which of the following layers of the OSI model is responsible for establishing communication session between the processes running on different communication entities in a network?

A. Layer 7 (Application layer)

B. Layer 2 (Data-link layer)

C. Layer 5 (Session layer)

D. Layer 3 (Network layer)

Which of the following are endpoints in Cisco Unified Communications? Each correct answer represents a complete solution. Choose two.

A. Routers

B. Switches

C. Gateways

D. IP phones

You are implementing a Voice over Wireless LAN network.

Which of the following voice-specific requirements will you consider to ensure that voice traffic is received timely or not?

A. Security

B. Quality of service

C. Intelligent client

D. Roaming

QoS (Quality of service) is the ability of the network to provide better or special service to a set of users and applications at the expense of other users and applications. QoS is deployed for network enhancement.

Which of the following is NOT affected by QoS?

A. Variable delay

B. Fixed delay

C. Packet loss

D. Jitter