CompTIA CN0-201 Online Practice Questions and Exam Preparation

CompTIA CN0-201 Online Questions & Answers

• Question 171:

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

  A. Data link layer
  B. Application layer
  C. Session layer
  D. Presentation layer
  D. Presentation layer

• Question 172:

  Which of the following is an audio data compression algorithm for voice that compresses digital voice in packets of 10 milliseconds duration?

  A. G.711
  B. H .320
  C. H .323
  D. G.729
  D. G.729

• Question 173:

  Which of the following statements are true about spoofing and session hijacking? Each correct answer represents a complete solution. Choose all that apply.

  A. Session hijacking is an attack in which an attacker takes over the session, and the valid user's session is disconnected.
  B. Session hijacking is an attack in which an attacker takes over the session, and the valid user's session is not disconnected.
  C. Spoofing is an attack in which an attacker can spoof the IP address or other identity of the target but the valid user can be active.
  D. Spoofing is an attack in which an attacker can spoof the IP address or other identity of the target and the valid user cannot be active.
  B. Session hijacking is an attack in which an attacker takes over the session, and the valid user's session is not disconnected.
  C. Spoofing is an attack in which an attacker can spoof the IP address or other identity of the target but the valid user can be active.

• Question 174:

  Which of the following communications technologies provides access to a large pool of customer service agents and multiple channels of communication as well as customer self-help tools?

  A. Rich-media conferencing
  B. Video telephony
  C. IP telephony
  D. Contact center
  D. Contact center

• Question 175:

  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
  C. ISDN PRI

• Question 176:

  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. RTP
  B. QoS
  C. DNS
  D. RSTP
  B. QoS

• Question 177:

  Which of the following address translation types only translates one (and only one) IP address to another without using ports?

  A. Static NAT
  B. PAT
  C. Dynamic NAT
  D. NAT
  D. NAT

• Question 178:

  Which of the following statements are true about session hijacking? Each correct answer represents a complete solution. Choose all that apply.

  A. Use of a long random number or string as the session key reduces session hijacking.
  B. It is used to slow the working of victim's network resources.
  C. TCP session hijacking is when a hacker takes over a TCP session between two machines.
  D. It is the exploitation of a valid computer session to gain unauthorized access to information or services in a computer system.
  A. Use of a long random number or string as the session key reduces session hijacking.
  C. TCP session hijacking is when a hacker takes over a TCP session between two machines.
  D. It is the exploitation of a valid computer session to gain unauthorized access to information or services in a computer system.

• Question 179:

  Harry works as a Technician for KBC Inc. He has just installed a wireless access point that he plans to use for voice and video calls. Which of the following is an essential setting to put in place so that Harry can prioritize multiple traffic streams?

  A. Multiple default gateways
  B. MAC address filtering
  C. Larger MTU settings
  D. Multiple SSID entries
  D. Multiple SSID entries

• Question 180:

  Which of the following common IP services allows a customer to connect to the Internet with the help of private IP addressing?

  A. NDIS
  B. DHCP
  C. DNS
  D. NAT
  D. NAT