INF: Chp 10 quiz

what is the approximate distance most Bluetooth devices can be from each other to communicate, without using additional equipment?

33 feet

Your school computer library has a network that connects computers and devices within a few small rooms. What type of network does it likely use?

LAN

which of the following technologies is your new mobile phone payment device most likely to use?

NFC

which of the following technologies is the new tollbooth on the local highway most likely to use?

RFID

what is a receiving device?

a device that accepts the transmission of data, instructions, or information

what is a sending device?

a device that initiates an instruction to transmit data, instructions, or information

what is the term for a communications device that connects multiple computers together and transmits data to its correct destination on a network?

a router

Which of the following statements best describes a BAN? a network that covers a broad area a device that used Bluetooth technology to set up a network a seat of wearable or implanted body sensors that router a network type that is not allowed because of concerns about invasion of privacy

a set of wearable or implanted body sensors that turns the body into a human router

what is the definition of a protocol, as it applies to networks?

a standard that outlines characteristics of how tow network devices communicate

the amount of data, instructions, and information that can travel over a communications channel sometimes is called which of the following?

bandwidth

For best performance of a communications channel, which of the following should be true?

bandwidth should be high and latency low

what type of media transmits multiple signals simultaneously? broadband back bone broadwidth bandwidth

broadband

which of the following is a transmission media on which data, instructions, or information travel? communications path communications route communications flow communications channel

communications channel

what term describes the process in which two or more computers or devices transfer data, instructions, and information

digital communication

In reference to computer communications, what does the term noise mean?

electrical disturbances

Microwave transmission involves sending signals from one microwave station to another. What is this often called?

fixed wireless

you are purchasing a new mobile phone, and are learning about categories of cellular transmissions. You ask the sales person what the "G" stands for in the categories 1G, 2G, 3G, and 4G. What does he reply?

generation

which of the following is true of broadcast radio with regard to physical transmission media?

it is slower and more susceptible to noise

what term is used to describe the time it takes a signal to travel from one location to another on a network?

latency

The design of computers, devices, and media in a network is categorized as either client/server or peer-to-peer. What is the term used to refer to this characterization?

network architecture

which of the following statements best describes the Ethernet network standard? no central computer or device on the network should control when data can be transmitted describes rules for dividing messages into small pieces, called packets

no central computer or device on the network should contrl when data can be transmitted

which network type connects each computer and device to a central device?

star network

What is the purpose of hubs and switches? to minimize the number of dropped network connections in your home to provide a central point for cables in a network to give a location for each node on a network to translate analog signals into digital signals

to provide a central point for cables in a network

which of the following best describes DSL connections?

transmits at fast speeds on existing standard copper telephone wiring, popular for small business or home user

which of the following terms identifies any network based on the 802.11 family of standards?

wi-fi