CNA Ch 7

A computer _____ is two or more computers connected using software and hardware so that they can communicate with each other.

network

A _____ is any device connected to a network such as a computer, printer, or game console.

node

_____ is the actual speed of data transfer that is achieved between two nodes on a network and is always less than or equal to the data transfer rate.

Throughout

Some of the responsibilities of _____ are installing new hardware and software on the network and monitoring performance.

network administrators

Common network architecture types

Home Area Network (HAN) Local Area Network (LAN) Personal Area Network (PAN)

You can find out which network adapters are installed in your system by using the Windows _____ Manager utility.

Device

When setting up a home network, make sure each node has _____.

a network adapter

The network architecture that spans the largest physical distance is called a _____.

WAN

A large network designed to provide access to a specific geographic area, such as a large city, is a _____.

MAN

Which transmission medium transmits data the fastest?

Fiber-optic cable

What transmission media is used for normal telephone service?

Twisted-pair cable

A client/server network is an example of _____ administration.

central

A peer-to-peer (P2P) network is an example of _____ administration.

local

Not a standard wireless network.

802.11ab

Which of the following is NOT a type of cable used in wired networks?

Unshielded coaxial

Which of the following is NOT a type of UTP cable you would use in a wired Ethernet network?

Cat 7B

If you are going to attach more than 15 devices to your wireless network, you should make sure your router supports which standard?

802.11ac

Wireless network devices use ________ to communicate with each other.

radio waves

For the nodes on a network to communicate with each other and access the network, each node needs a ________.

network adapter

On a network, a(n) ________ helps prevent data packets from colliding with each other.

switch

Which hardware device connects your network to the Internet?

Modem

To transfer data packets between two or more networks, a ________ is used.

router

Data are sent through a network in bundles called ________.

packets

Which of the following is NOT a home operating systems that supports P2P networking?

Unix

Client/server networks are controlled by a central server that runs specialized software called a(n) ________.

network operating system (NOS)

Which of the following is NOT a wired broadband Internet connection option?

Dial-up

A(n) ________ device facilitates file sharing and data backup.

NAS

Using a wireless network without the network owner’s permission is known as ________.

piggybacking

All of the following are extra precautions you can take to secure a wireless network EXCEPT ________.

enable SSID broadcast

The unique number assigned to a network adapter by the manufacturer is referred to as the ________ address.

MAC

The term network _____ is the same as the network design

architecture

A(n) _____ network is one in which each computer can communicate directly with the others.

peer-to-peer

A computer lab is an example of a(n) _____ type of network.

local area network (LAN)

A network used to communicate among devices close to one person is called a(n) _____.

PAN

Many cities in the United States now provide a(n) _____ type of network to allow Internet access to residents and tourists.

MAN

_____ cable is composed of four pairs of wires that are twisted around each other.

Unshielded twisted-pair

_____ cable consists of a single copper wire surrounded by layers of plastic and is used to connect cable TV.

Coaxial

The capability of current devices to use earlier standards, in addition to the current standard, is known as _____.

backwards compatibility

_____ are devices that transfer packets of data between two or more networks.

Routers

A(n) _____ is a device that receives data packets and sends them to their intended nodes on the same network while preventing data collisions.

switch

The server on a client/server network has specialized _____ software installed.

NOS

_____ is often referred to as "high-speed internet."

Broadband

DSL broadband services uses _____ cable

coaxial

A(n) _____ network uses radio waves as its transmission medium.

wireless

A(n) _____ acts like a traffic signal on a network.

switch

In terms of networking, NOS stands for ______.

network operating system

_____ has faster cellular data transfer rates than 3G.

4G

Public places where you can wirelessly connect to the Internet are known as_____.

hotspots

A(n) _____ is someone who attempts to access your network without your knowledge.

hacker

When using a wireless connection, the process of _____ translates data into code so that it is protected.

encryption

SSID stands for _____.

service set identifier

All wireless networks have their own name, referred to as the _____, which is used to identify the network.

SSID

A wireless _____ extender is a wireless network device that repeats your wireless signal.

range

_____ is a much stronger protocol than WEP for wireless security.

WAP

_____ refers to connecting to a wireless connection without the permission of the owner.

Piggybacking

A printer connected to a wireless network is considered to be a node on that network.

TRUE

Sharing files is a benefit of a network.

TRUE

When powering up a home network, make sure all computers and peripherals are turned on before turning on the modem/router.

FALSE

P2P networks are most commonly used in home networks.

TRUE

The internet is a WAN.

TRUE

Current wired Ethernet networks in the United States are based on the IEEE 802.11ac standard.

FALSE

Ethernet networks are always connected using twisted-pair cable technology.

FALSE

Wireless network connections are slower than wired broadband connections.

TRUE

An access point connects to the main router wirelessly.

FALSE

Most computers today come with Ethernet adapters already installed.

TRUE

A switch acts like a traffic signal on a network.

TRUE

A P2P network needs specialized network operating system software installed on every node.

FALSE

Wireless networks are more vulnerable to attack than wired networks.

TRUE

WEP is a stronger form of security than WPA.

FALSE

Limiting your signal range does not help increase wireless network security.

FALSE

Matching

HAN: services residents MAN: covers a city LAN: small geog area PAN: comm devices near an individual WAN: great distance

Matching

FIber-optic: plastic/glass Twisted pair: copper wires Coaxial cable: single copper wire P2P: comm directly w/ nodes on network Client/server: central comp provides info

Throughput

actual speed of data transfer that is achieved on a network

Packet

format in which data is sent over transmission media

Firmware

instructions in read-only memory

Firewall

hardware or software for protecting computers from hackers

Bandwith

max speed at which data can be transferred

NOS

software used to set up and manage a network

Broadband

high-speed Internet connection

Router

directs data traffic between networks

Switch

handles data traffic between nodes on the same network

NIC

connects a node to a network