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Code d'Examen: CN0-201
Nom d'Examen: CompTIA (CompTIA CTP+ Certification Exam)
Questions et réponses: 302 Q&As

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NO.1 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
Answer: B

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NO.2 You work as a network consultant for Net World International. You are designing a network for a client
company. The proposed network will use a class B address for its network. The network will be divided
into thirty-two subnets. Which of the following subnet masks will you use to design the network?
A. 255.255.252.0
B. 255.252.0.0
C. 255.255.248.0
D. 255.248.0.0
Answer: A

CompTIA examen   certification CN0-201   CN0-201

NO.3 Which of the following devices is used to make decisions based on MAC addresses and is considered
the most appropriate device to use when limiting broadcast domains for devices that will process voice
data?
A. Layer 3 switch
B. Repeater
C. Layer 2 switch
D. MCU
Answer: C

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NO.4 Which of the following is a mechanism used by the Multimedia Extensions (WME) standard to avoid
contentions in a particular traffic category?
A. Sliding Window Protocol
B. Contention Window (CW)
C. Auto-Rate Fallback
D. Maximum Segment Size (MSS)
Answer: B

CompTIA   CN0-201   CN0-201   certification CN0-201

NO.5 Which of the following protocols provides sequence numbers to VoIP packets?
A. TCP
B. RTP
C. UDP
D. SCCP
Answer: B

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NO.6 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
Answer: C

certification CompTIA   CN0-201   CN0-201

NO.7 When a phoneislifted off-hook, it connects the two wires causing an electrical signal to flowfromthe
phone exchange to thephone. What is this electrical signal called?
A. Off-hook signal
B. Ground start signal
C. Loop start signal
D. On-hook signal
Answer: C

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NO.8 Which of the following protocols is used by VoIP applications for communication initiation in the
network?
A. TLS
B. NTP
C. SIP
D. SSH
Answer: C

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NO.9 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
Answer: CD

CompTIA   CN0-201   CN0-201

NO.10 Which of the following devices is used to create VLANs in a small network?
A. Repeater
B. Switch
C. Hub
D. Bridge
Answer: B

certification CompTIA   CN0-201   CN0-201

NO.11 Which of the following are endpoints in Cisco Unified Communications?
Each correct answer represents a complete solution. Choose two.
A. Switches
B. Routers
C. Gateways
D. IP phones
Answer: CD

CompTIA   certification CN0-201   CN0-201   CN0-201

NO.12 Which of the following ITU standards specifies PCM voice coding at 64 kbps?
A. G.726
B. G.728
C. G.729
D. G.711
Answer: D

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NO.13 Youwork as a NetworkAdministrator for McNeil Inc.Thecompany hasa TCP/IP-based network.
Performance of the network is slow because of heavy traffic.A hub is used as a central connectingdevice
in the network. Which of the following devices can be used in place of a hub to control thenetwork traffic
efficiently?
A. Repeater
B. Router
C. Switch
D. Bridge
Answer: C

certification CompTIA   CN0-201   CN0-201 examen

NO.14 Which of the following are examples of interactive communication?
Each correct answer represents a complete solution. Choose all that apply.
A. Video Conferencing
B. E-mail
C. Fax
D. Phone call
Answer: AD

CompTIA   CN0-201 examen   CN0-201

NO.15 Andrewis working for a television station in NorthAmerica and South America. What video standardis
more possibly be used with the video stored in the archives of these stations?
A. PAL
B. NTSC
C. SECAM
D. IEEE 1394
Answer: B

CompTIA   certification CN0-201   CN0-201   certification CN0-201

NO.16 Which of the following layers of the OSI model managescommunication between
communicationentities in a network?
A. Presentation
B. Network
C. Transport
D. Session
E. Application
Answer: D

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NO.17 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. Application layer
C. Physical layer
D. Presentation layer
Answer: D

CompTIA   CN0-201 examen   CN0-201   CN0-201   CN0-201 examen

NO.18 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.
Answer: ACD

CompTIA   CN0-201 examen   CN0-201   CN0-201 examen   CN0-201   CN0-201 examen

NO.19 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
Answer: D

CompTIA   CN0-201   certification CN0-201

NO.20 Rick, an administrator of a TCP/IP network, wants to achieve the following goals: l Reduce congestion
of network traffic. l Optimize the utilization of the IP address space.
Which of the following technologies may help him to accomplish the task?
A. Pinging
B. Supernetting
C. Routing
D. Subnetting
Answer: D

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Nom d'Examen: CompTIA (CompTIA Security+ E2C (2011 Edition))

Questions et réponses: 794 Q&As

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Nom d'Examen: CompTIA (Security+ Certification Exam 2011 version)

Questions et réponses: 288 Q&As

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Nom d'Examen: CompTIA (CompTIA E2C Project+ Certification Exam)

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Code d'Examen: CN0-201

Nom d'Examen: CompTIA (CompTIA CTP+ Certification Exam)

Questions et réponses: 302 Q&As

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NO.1 Which of the following protocols is used extensively in communication and entertainment systems that
involve streaming media, such as telephony, video teleconference applications and web-based push to
talk features?
A. SIP
B. MGCP
C. H.323
D. RTP
Answer: D

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NO.2 You work as a Network Administrator for uCertify Inc. You need to conduct network reconnaissance,
which is carried out by a remote attacker attempting to gain information or access to a network on which it
is not authorized/allowed.
What will you do?
A. Use a SuperScan
B. Use a netcat utility
C. Use a vulnerability scanner
D. Use an idle scan
Answer: C

CompTIA   CA1-001   CA1-001 examen

NO.3 Which of the following is frequently used by administrators to verify security policies of their networks
and by attackers to identify running services on a host with the view to compromise it?
A. Fuzzer
B. Port scanner
C. MegaPing
D. UDP scan
Answer: B

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NO.4 Which technology can be used to help ensure the efficient transport of VoIP traffic?
A. DNS
B. QoS
C. H.323
D. RSTP
Answer: B

CompTIA   CA1-001 examen   CA1-001 examen   CA1-001

NO.5 Which of the following security practices are included in the Implementation phase of the Security
Development Lifecycle (SDL)? Each correct answer represents a complete solution. Choose two.
A. Establish Design Requirements
B. Perform Static Analysis
C. Use Approved Tools
D. Execute Incident Response Plan
Answer: A,B,C

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NO.6 You work as a Network Administrator for uCertify Inc. You want to allow some users to access a
particular program on the computers in the network. What will you do to accomplish this task?
A. Apply remote access policies
B. Apply NTFS permissions
C. Apply group policies
D. Apply account policies
Answer: C

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NO.7 Which of the following components of a VoIP network is frequently used to bridge video conferencing
connections?
A. MCU
B. Videoconference station
C. IP Phone
D. Call agent
Answer: A

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NO.8 You need to ensure that a session key derived from a set of long-term public and private keys will not be
compromised if one of the private keys is compromised in the future?
A. Perfect forward secrecy
B. Secure socket layer
C. Secure shell
D. Security token
Answer: A

CompTIA examen   CA1-001   CA1-001   CA1-001

NO.9 Which of the following is an XML-based framework developed by OASIS and used to exchange user,
resource and service provisioning information between cooperating organizations?
A. SOAP
B. SAML
C. SPML
D. XACML
Answer: C

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NO.10 Which of the following is a declarative access control policy language implemented in XML and a
processing model, describing how to interpret the policies?
A. SAML
B. SOAP
C. SPML
D. XACML
Answer: D

CompTIA   CA1-001 examen   CA1-001   certification CA1-001

NO.11 The Security Development Lifecycle (SDL) consists of various security practices that are grouped under
seven phases.Which of the following security practices are included in the Requirements phase.?
Each correct answer represents a complete solution. Choose all that apply.
A. Incident Response Plan
B. Create Quality Gates/Bug Bars
C. Attack Surface Analysis/Reduction
D. Security and Privacy Risk Assessment
Answer: B,D

CompTIA   CA1-001 examen   CA1-001   CA1-001   CA1-001

NO.12 You work as a Network Administrator for uCertify Inc.
You want the clients and servers in your organization to be able to communicate in a way that prevents
eavesdropping and tampering of data on the Internet. Which of the following will you use to accomplish
the task?
A. EFS
B. WEP
C. SSL
D. MS-CHAP
Answer: C

CompTIA   CA1-001   CA1-001   certification CA1-001   CA1-001 examen

NO.13 Which of the following is the most secure authentication scheme and uses a public key cryptography
and digital certificate to authenticate a user?
A. Form-based authentication
B. Basic authentication
C. Digest authentication
D. Certificate-based authentication
Answer: D

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NO.14 In which of the following attacks does an attacker intercept call-signaling SIP message traffic and
masquerade as the calling party to the called party and vice-versa?
A. Call tampering
B. Man-in-the-middle
C. Eavesdropping
D. Denial of Service
Answer: B

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NO.15 SDLC phases include a minimum set of security tasks that are required to effectively incorporate
security in the system development process. Which of the following are the key security activities for the
development/acquisition phase?
Each correct answer represents a complete solution. Choose two.
A. Prepare initial documents for system certification and accreditation
B. Conduct the risk assessment and use the results to supplement the baseline security controls
C. Determination of privacy requirements
D. Initial delineation of business requirements in terms of confidentiality, integrity, and availability
Answer: A,B

certification CompTIA   CA1-001   CA1-001

NO.16 Which of the following stages are involved in the successful implementation of a collaboration platform?
Each correct answer represents a part of the solution. Choose two.
A. Ongoing collaboration solution design
B. Federated identity management
C. Platform implementation
D. Product and service integration
Answer: A,C

CompTIA   CA1-001 examen   CA1-001

NO.17 In which of the following activities an organization identifies and prioritizes technical, organizational,
procedural, administrative, and physical security weaknesses?
A. Social engineering
B. Vulnerability assessment
C. White box testing
D. Penetration testing
Answer: B

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NO.18 Which of the following terms is about communicating the user's need and ability to communicate, and
the medium through which that communication may occur?
A. Data sharing
B. Presence
C. Instant messaging
D. Audio conferencing
Answer: B

CompTIA   certification CA1-001   certification CA1-001

NO.19 Collaboration platform offers a set of software components and services that enable users to
communicate, share information, and work together for achieving common business goals. What are the
core elements of a collaboration platform?
Each correct answer represents a part of the solution. Choose three.
A. Product and service integration
B. Real-time communication
C. Change management
D. Team collaboration
E. Messaging
Answer: B,D,E

CompTIA   CA1-001   CA1-001

NO.20 Which of the following are the functions of a network security administrator? Each correct answer
represents a complete solution. Choose three.
A. Backing up the files
B. Writing computer software
C. Maintaining and implementing a firewall
D. Developing, maintaining, and implementing IT security
Answer: A,C,D

CompTIA   CA1-001   CA1-001   CA1-001

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Code d'Examen: CN0-201

Nom d'Examen: CompTIA (CompTIA CTP+ Certification Exam)

Questions et réponses: 302 Q&As

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NO.1 Which of the following are endpoints in Cisco Unified Communications?
Each correct answer represents a complete solution. Choose two.
A. Switches
B. Routers
C. Gateways
D. IP phones
Answer: CD

CompTIA   CN0-201   certification CN0-201   certification CN0-201   CN0-201

NO.2 Which of the following protocols is used by VoIP applications for communication initiation in the
network?
A. TLS
B. NTP
C. SIP
D. SSH
Answer: C

CompTIA examen   certification CN0-201   CN0-201   CN0-201

NO.3 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
Answer: CD

CompTIA   certification CN0-201   certification CN0-201   certification CN0-201

NO.4 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
Answer: C

CompTIA   certification CN0-201   CN0-201 examen   CN0-201

NO.5 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.
Answer: ACD

CompTIA   CN0-201   certification CN0-201   CN0-201 examen

NO.6 Which of the following layers of the OSI model managescommunication between
communicationentities in a network?
A. Presentation
B. Network
C. Transport
D. Session
E. Application
Answer: D

CompTIA   CN0-201   CN0-201   CN0-201   CN0-201   CN0-201

NO.7 Andrewis working for a television station in NorthAmerica and South America. What video standardis
more possibly be used with the video stored in the archives of these stations?
A. PAL
B. NTSC
C. SECAM
D. IEEE 1394
Answer: B

CompTIA   CN0-201   CN0-201 examen   certification CN0-201   certification CN0-201

NO.8 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
Answer: B

CompTIA   CN0-201   CN0-201   certification CN0-201

NO.9 Which of the following are examples of interactive communication?
Each correct answer represents a complete solution. Choose all that apply.
A. Video Conferencing
B. E-mail
C. Fax
D. Phone call
Answer: AD

certification CompTIA   CN0-201   CN0-201

NO.10 Which of the following devices is used to make decisions based on MAC addresses and is considered
the most appropriate device to use when limiting broadcast domains for devices that will process voice
data?
A. Layer 3 switch
B. Repeater
C. Layer 2 switch
D. MCU
Answer: C

CompTIA   certification CN0-201   CN0-201   CN0-201 examen

NO.11 You work as a network consultant for Net World International. You are designing a network for a client
company. The proposed network will use a class B address for its network. The network will be divided
into thirty-two subnets. Which of the following subnet masks will you use to design the network?
A. 255.255.252.0
B. 255.252.0.0
C. 255.255.248.0
D. 255.248.0.0
Answer: A

CompTIA   certification CN0-201   CN0-201 examen   CN0-201   CN0-201 examen   CN0-201 examen

NO.12 Youwork as a NetworkAdministrator for McNeil Inc.Thecompany hasa TCP/IP-based network.
Performance of the network is slow because of heavy traffic.A hub is used as a central connectingdevice
in the network. Which of the following devices can be used in place of a hub to control thenetwork traffic
efficiently?
A. Repeater
B. Router
C. Switch
D. Bridge
Answer: C

certification CompTIA   CN0-201   CN0-201

NO.13 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. Application layer
C. Physical layer
D. Presentation layer
Answer: D

CompTIA   certification CN0-201   CN0-201   CN0-201

NO.14 Which of the following is a mechanism used by the Multimedia Extensions (WME) standard to avoid
contentions in a particular traffic category?
A. Sliding Window Protocol
B. Contention Window (CW)
C. Auto-Rate Fallback
D. Maximum Segment Size (MSS)
Answer: B

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NO.15 Which of the following devices is used to create VLANs in a small network?
A. Repeater
B. Switch
C. Hub
D. Bridge
Answer: B

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NO.16 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
Answer: D

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NO.17 Rick, an administrator of a TCP/IP network, wants to achieve the following goals: l Reduce congestion
of network traffic. l Optimize the utilization of the IP address space.
Which of the following technologies may help him to accomplish the task?
A. Pinging
B. Supernetting
C. Routing
D. Subnetting
Answer: D

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NO.18 Which of the following ITU standards specifies PCM voice coding at 64 kbps?
A. G.726
B. G.728
C. G.729
D. G.711
Answer: D

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NO.19 When a phoneislifted off-hook, it connects the two wires causing an electrical signal to flowfromthe
phone exchange to thephone. What is this electrical signal called?
A. Off-hook signal
B. Ground start signal
C. Loop start signal
D. On-hook signal
Answer: C

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NO.20 Which of the following protocols provides sequence numbers to VoIP packets?
A. TCP
B. RTP
C. UDP
D. SCCP
Answer: B

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