CN0-201 Online Practice Questions and Answers

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

A. E.164

B. ITU-T

C. IETF

D. T-161

Harry works as a Technician for NetPerfect Inc. He has been assigned a project to connect a North American T-1 trunk to a European E-1 trunk using a conversion device.

Which of the following will result?

A. No more than 80% of the E-1 trunk can be used.

B. The connection will fail.

C. No connection can be made in between the E-1 trunk and T-1 trunk.

D. No less than 80% of the T-1 trunk can be used.

You work as a Network Administrator for PassGuide Inc. You have implemented a firewall on the company's network. You want to ensure that outside users cannot access the internal FTP servers on the network.

What will you do to accomplish the task?

A. Block the TCP ports 20 and 21 on the firewall.

B. Block the TCP port 443 on the firewall.

C. Block the TCP port 80 on the firewall.

D. Block the UDP port 1701 and TCP port 1723 on the firewall.

H.323 is a group of protocols defined by the International Telecommunication Union for multimedia conferences over Local Area Networks. H.323 uses ASN.1 binary code.

Which of the following layers of the OSI model is responsible for translating, processing, and reading ASN.1 and ASCII messages?

A. Transport layer

B. Physical layer

C. Application layer

D. Presentation layer

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

Andrew is working for a television station in North America and South America.

What video standard is more possibly be used with the video stored in the archives of these stations?

A. IEEE 1394

B. PAL

C. SECAM

D. NTSC

Which of the following are types of Digital Subscriber Line (DSL)? Each correct answer represents a complete solution. Choose two.

A. BDSL

B. ADSL

C. SDSL

D. NDSL

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 layers of the OSI model manages communication between communication entities in a network?

A. Transport

B. Application

C. Session

D. Presentation

E. Network

Which of the following is a part of the network connection and could be a cause of jitter?

A. Switch

B. The delaying router interface

C. The sending router interface

D. Gateway