HT0-201 CEA- CompTIA DHTI+ Certification Practice Exam Set 3

Which of the following phone system configurations uses proprietary phones to access most system features?   


Options are :

  • Key system (Correct)
  • Home Plug
  • Cellular phone
  • VoIP

Answer : Key system

Which of the following is a standard for security access control? 


Options are :

  • CEBus
  • Weigand (Correct)
  • NetBEUI
  • Echelon

Answer : Weigand

A telephone system can enhance the security of a home by providing:   


Options are :

  • Door entry two-way communications (Correct)
  • Lighted station-in-use buttons.
  • Easy transferability of phone calls within the home
  • Intercom throughout the home

Answer : Door entry two-way communications

In CCTV applications, which of the following should be considered when specifying lenses? 


Options are :

  • Viewing angle (Correct)
  • Video sensor type
  • Monochrome or Color image
  • IR illumination

Answer : Viewing angle

Which of the following determines the minimum light requirements of a security video application? 


Options are :

  • Pixel count
  • Lux rating (Correct)
  • ISO rating
  • Focal length
  • NONE

Answer : Lux rating

Which of the following is a security device commonly fitted into doors and windows?   


Options are :

  • Shock sensor
  • Pressure sensor
  • Glass break detector
  • Magnetic contact (Correct)

Answer : Magnetic contact

When wiring multiple normally closed door contacts on a single zone, which of the following wiring conventions are correct? 


Options are :

  • Each contact is wired in series with an end of line resistor in parallel.
  • Each contact is wired in series with an end of line resistor in series. (Correct)
  • Each contact is wired in parallel with an end of line resistor in series.
  • Each contact is wired in parallel with an end of line resistor in parallel

Answer : Each contact is wired in series with an end of line resistor in series.

Which of the following protocols is commonly used in a VoIP application? 


Options are :

  • Address Resolution Protocol (ARP)
  • Simple Key management for Internet Protocol (SKIP)
  • Internet Control Message Protocol (ICMP)
  • Session Initiation Protocol (SIP) (Correct)

Answer : Session Initiation Protocol (SIP)

A customer would like to see four cameras on the screen at a time. This process is called:   


Options are :

  • Multicasting
  • Combining.
  • diplexing.
  • Multiplexing. (Correct)

Answer : Multiplexing.

Which of the following conductor colors represents line one in a CAT5/5e telephone cable? 


Options are :

  • Blue and white-blue (Correct)
  • Green and white-green
  • Orange and white-orange
  • Brown and white-brown

Answer : Blue and white-blue

Which of the following residential electronic devices can use the same frequencies as 802.11 b/g residential networking products and potentially cause interference? (Select THREE).

A. Cordless phones

B. ZigBee products

C. Microwave ovens

D. Z-wave products

E. 802.11a products

F. Cell phones   


Options are :

  • D,E,F
  • A,B,C (Correct)
  • B,C,D
  • C,D,E

Answer : A,B,C

Which of the following commands will display the IP address, dynamic host configuration protocol (DHCP) status and MAC address of a Windows PC? 


Options are :

  • IPCONFIG /RENEW
  • IPCONFIG /ALL (Correct)
  • IPCONFIG /FLUSHDNS
  • IPCONFIG /DIPLAYDNS

Answer : IPCONFIG /ALL

Which of the following broadband technologies typically utilizes the Point to Point Protocol Over Ethernet (PPPoE) for devices directly connecting to their network? 


Options are :

  • Satellite
  • DSL (Correct)
  • WiMax
  • Cable

Answer : DSL

A customer would like to monitor their backyard at night remotely. The MOST effective solution would be to:   


Options are :

  • Use a modulator to enhance the image quality.
  • Integrate backyard lighting to illuminate the backyard.
  • Install a color camera with the best low light rating.
  • Install a camera with IR illumination (Correct)

Answer : Install a camera with IR illumination

For all of the devices on a LAN segment to communicate with one another they must be on the same: 


Options are :

  • Router
  • Subnet mask. (Correct)
  • Gateway.
  • Switch.

Answer : Subnet mask.

Which of the following is the maximum length that a CAT5e cable can be in order to support 1000BaseT Ethernet? 


Options are :

  • 100 meters (328 feet) (Correct)
  • 328 meters (1076 feet)
  • 75 meters (246 feet)
  • 25 meters (82 feet)

Answer : 100 meters (328 feet)

Which of the following is the standard for RF video distribution over coaxial cable? 


Options are :

  • 50 ohms
  • 75 ohms (Correct)
  • 59 ohms
  • 100 ohms

Answer : 75 ohms

A good way to avoid cross talk on a phone line is to: 


Options are :

  • Use twisted pair cable. (Correct)
  • Use long cable runs
  • Use shielded unpaired cable.
  • Add additional telephone cables.

Answer : Use twisted pair cable.

Distributing VoIP service throughout a residence requires a(n):   


Options are :

  • Cable modem.
  • VoIP router.
  • Ethernet network. (Correct)
  • Plain old telephone service (POTS) line

Answer : Ethernet network.

A customer wishes to share one file from their by Documents folder on a Microsoft Windows based system. It is vital that the other documents in this folder are not shared. Which of the  following methods will achieve this? (Select TWO).

A. Move the file to a new folder and share the new folder.

B. Right click on the file and enable simple file sharing.

C. Place the file to be shared in the shared Documents folder.

D. Right click on the file and choose sharing Then select the share this file option

E. Drag and drop the file to be shared, to by Network icon.   


Options are :

  • A,B
  • D,E
  • C,D
  • A,C (Correct)

Answer : A,C

Which of the following is an advantage to setting up a peer-to-peer network?   


Options are :

  • Files will be stored centrally
  • No additional server is required (Correct)
  • Security can be administered centrally
  • Backups can be run on the server

Answer : No additional server is required

A customer is using DSL to connect to the internet. After adding a new phone extension, the customer can no longer access the internet. Which of the following should be checked FIRST? 


Options are :

  • Whether the extension cable is DSL-capable.
  • Whether the new extension is connected to a DSL-filter. (Correct)
  • Whether the router developed a fault.
  • Whether the ringer equivalency number (REN) has been exceeded.

Answer : Whether the new extension is connected to a DSL-filter.

Which of the following allows a user to type in an alpha-numeric string instead of manually entering a numerical IP address in a web browser? 


Options are :

  • Web accelerator
  • Domain Name Service (DNS) (Correct)
  • Subnet mask
  • Dynamic Host Control Protocol (DHCP) server

Answer : Domain Name Service (DNS)

Which of the following are features of wired equivalent privacy (WEP)?   


Options are :

  • It controls which IP addresses are being issued.
  • It prevents certain MAC addresses from accessing the network
  • It offers data encryption. (Correct)
  • It prevents an intruder from knowing whether a wireless network exists

Answer : It offers data encryption.

A surveillance camera which can be natively viewed remotely using a web browser is usually referred to as a(n):   


Options are :

  • CCTV camera
  • Analog camera.
  • IP camera (Correct)
  • Webcam

Answer : IP camera

Which of the following is a characteristic of a network hub? 


Options are :

  • A hub can be used to segment a network.
  • A hub retransmits data to all ports. (Correct)
  • A hub connects two dissimilar networks.
  • A hub manages bandwidth.

Answer : A hub retransmits data to all ports.

After a Key Service Unit (KSU) phone system is installed, the technician tests the system by taking line one off the hook and calling the home from a cell phone. Instead of line two ringing the installer receives a busy signal. The BEST troubleshooting step would be to: 


Options are :

  • Review the voice mail system programming.
  • Review rollover settings with the phone company (Correct)
  • Review the incoming call programming in the phone system.
  • Review the wiring for the central office lines into the phone system.

Answer : Review rollover settings with the phone company

A paging adapter is used to: 


Options are :

  • Supply ring voltage to the external paging system.
  • Simulate a single line telephone handset.
  • Interface a telephone system to an external paging system. (Correct)
  • Match the impedance of the external paging speaker.

Answer : Interface a telephone system to an external paging system.

Which of the following is the correct default subnet mask for a device with the IP address 192.168.0.25? 


Options are :

  • 255.255.255.255
  • 0.0.0.0
  • 255.255.255.0 (Correct)
  • 255.255.0.0

Answer : 255.255.255.0

Photo-electric beam sensors typically use which type of light source? 


Options are :

  • UV
  • Laser
  • Incandescent
  • IR (Correct)

Answer : IR

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