Chapter 4 _ Connect

Select the characteristics of a router.

-Connects networks -Provides hardware firewall protection -Usually incorporates a switch

Select the characteristics of a modem.

-Usually provided by the ISP -Converts analog signals into digital signals -Converts digital signals into analog signals

Select the major U.S. cell phone providers.

-Verizon -ATT -T-Mobile -Sprint

Select what's true regarding dual band routers.

-can transmit Wi-Fi signals in the 2.4 GHz frequency range -can transmit Wi-Fi signals in the 5.0 GHz frequency range usually less expensive than single band routers.

Remote access connections must be secured using authentication and encryption software. ______ software confirms the identity of the user or computer system.

Authentication

Select what's true about troubleshooting a network.

Check to make sure that cables are not damaged and that all cables are plugged in properly. A poor signal can also be an indicator that the hardware may be old or improperly positioned. Signal quality does not have an impact on network performance.

A computer that requests resources such as a web page, spreadsheet, image file, or services from another computer on a network is called a _____.

Client

In a server-based network the individual computers and devices are called _____.

Clients

Being able to surf the web, watch videos, and listen to steaming audio is why cell service with a ___ plan is extremely popular in the U.S.

Data

What technology allows for the electronic communication of business oriented transactions and information between people and organizations?

EDI

EDI stands for ____.

Electronic Data Interchange

MAC address

Identifies a device within a network

Select what's true about troubleshooting network hardware issues.

If your network isn't working it is a good idea to check the status of the indicator lights. Sometimes firmware updates can occur that can cause a network outage. If you experiences trouble you may need to reboot the hardware device. Most network hardware issues will be resolved over time. There is no need to try and troubleshoot.

A collection of computers that are connected in a small geographic area such as an office, college campus, or in your home is called a _____.

LAN

Select what's true about WANs

Large organizations with many offices located across the glove often have individual LANs in each location that need to be connected in order to share data and information When two or more LANs have been connected using a public network a WAN or Wide Area Network is created. There are only a few WANs across the globe.

Select the expenses found on a typical cell phone bill.

Line charges Data plan charges Taxes and surcharges

A switch distinguishes between various devices within a network by their __ addresses.

MAC

Broadband is measured in ______.

Mbps

Select the statements that are true regarding a Wi-Fi's SSID.

Most routers transmit the SSID every few seconds so roaming devices can find the signal. In home networks, after all legitimate devices have connected to the SSID once, transmitting the SSID is unnecessary.

A _____ is a group of two or more devices/ computers connected together to allow for the exchange and information and for the sharing of resources such as printers

Network

Unlike circuit switching, data transfer with ___ doesn't rely on a dedicated physical path.

Packet switching

A virtual _____ network (VPN) creates a secure connection between 2 computers.

Private

Select what's true about client/ server network

Server-based models are popular because they provide more security than a peer-to peer network. In this type of network when a client requests information or access to the Internet the request is controlled by the server Server-based networks are designed to have individuals computers and devices connected to the network interact through a central server computer.

Select the statements that are true regarding switches.

Switches connect computers and other devices within a network Switches are usually integrated in the routers of home networks. Switches ensure that correct data is transferred to and from the appropriate devices in networks

Can Transmission media be either wired or wireless.

True

Because of their popularity and bandwidth demands of video streaming, _____ data plans are more expensive than they were in the past.

Unlimited

Select the methods of connecting a Smartphone to the Internet.

Using a cellular data pan.

When two or more LANs have been connected using a public network a ______ is created.

WAN

The wireless network privacy standard that was introduced in 2003 but was quickly replaced ( due to numerous vulnerabilities) was known as _____.

WPA

In addition to activating ___ protection, it's a good idea to disable your router's SSID transmission once all your devices are connected.

WPA2

Select what's true about how circuit switching works when you make a traditional land line based phone call.

When you dial a number, then the switch connects to other switches along the PSTN. This forms a physical path between your phone and the person you are calling. When the call is received a circuit is established and will remain open for the entire length of your call. As long as the circuit remain open, no one else can use the telephone line. Once you hang up the phone, the circuit is disconnected, and the switches and wire pathways that had been dedicated to your phone call take about 15 minutes for other people to use.

What 3 items are needed to install a home WiFi network?

an Internet signal a modem

The capacity of a particular transmission medium is called its_____.

bandwidth

The volume of data that can be carried on an Internet transmission media in an amount of time is called _____.

bandwidth

An Internet signal that has enough bandwidth to allow multiple computers to be connected to the same router is called a ___ signal.

broadband

Router

connects 2 networks

Switch

connects devices within a network

Modem

converts analog signals into digital signals and digital signals into analog signals.

Routers that can send Internet signals over 2 distinct frequencies are called _____ routers.

dual band

Which transmission media has the largest bandwidth?

fiber optic

A security system separating 2 networks or even computers on the same network is called a ___.

firewall

When determining how much cell phone data you need it is important to consider

how much data you current use.

Select the characteristics of fiber optic lines

made of 1 or thousands of fibers high-speed transmission susceptible to electromagnetic interference

The word modem stands for_____.

modulator-demodulator

Fiber optic cable is ____ expensive than coaxial cable to install.

more

Select the reasons to purchase a prepaid phone.

no long-term contracts useful if you just need a phone for calling or texting useful if you just need a phone for emergencies

If you just need a phone for emergencies, you might consider a ___ phone.

prepaid

The device that connects 2 networks is a _____.

router

Your____ can provide hardware firewall protection for you home network where it connects to the ISP's network, just as ISP networks have firewalls where they connect to the Internet.

router