5 ch

A technician is searching through a storage locker and finds a firewall. What is the purpose of this device?

• • It is placed between two or more networks and protects data and equipment from unauthorized access.

• • It is a device that uses existing electrical wiring to connect devices and sends data using specific frequencies.

• • It is a device that can be inserted in the middle of a cable run to add power.

• • It connects a home or business network to a company that provides internet connectivity as well as television signals.

Which type of server would be used to keep a historical record of messages from monitored network devices?

• • print

• • DNS

• • authentication

• • syslog

• Which two types of signal interference are reduced more by STP than by UTP? (Choose two.)

• • white noise

• • dispersion

• • EMI

• • RFI

• • MDF

  
  

What is a characteristic of a WAN?

• • It connects multiple networks that are geographically separated.

• • It spans across a campus or city to enable sharing of regional resources.

• • It is typically owned and managed by a single home or business.

• • It requires a wireless access point to connect users to the network.

A network specialist has been hired to install a network in a company that assembles airplane engines. Because of the nature of the business, the area is highly affected by electromagnetic interference. Which type of network media should be recommended so that the data communication will not be affected by EMI?

• 
  

• • UTP

• • UTP

• • fiber optic

• • coaxial

Which device provides wireless connectivity to users as its primary function?

• • router

• • modem

• • access point

• • switch

A customer is considering a multipurpose device to create a home network. Which three devices are usually integrated into a multipurpose network device? (Choose three.)

• • email server

• • switch

• • wireless access point

• • print server

• • router

Which two devices are commonly powered by PoE? (Choose two.)

• • router

• • modular switch

• • core switch

• • IP phone

• • access point

Which pairs of wires change termination order between the 568A and 568B standards?

• • blue and brown

• • green and orange

• • green and brown

• • brown and orange

Which smart home wireless technology has an open standard that allows up to 232 devices to be connected?

• • Z-Wave

• • Zigbee

• • 802.11n

• • 802.11ac