ITEC 1001 - Chapter 4 - Networking and Immersive Reality
(a) Your home network's Wi-Fi name is its ___, and is transmitted by your wireless router every few seconds unless you turn it off. (b) A signal transmitted every few seconds by a wireless router so that user's computers can find identify the Wi-Fi hotspot is called a(n):
(SSID) service set identifier
Which three of the following statements are true about VPNs?
(a) A virtual private network (VPN) creates a secure connection between two computers. (b) VPNs allow for encrypted communications using the Internet as the pathway for data transmission and communication. (c) People within the organization use VPN software to login to the VPN.
Match the parent company with the subsidiary. (a) Cricket Wireless (b) MetroPCS (c) TracFone
(a) AT&T (b) T-Mobile (c) America Movil
Which three of the following items are needed to install a home Wi-Fi network?
(a) An Internet signal (b) A modem (c) A router
Which of the following are the reasons to purchase a prepaid phone?
(a) No long-term contracts (b) Useful if you just need a phone for calling or texting (c) Useful if you just need a phone for emergencies
Cricket Wireless is owned by
AT&T (ATT)
Remote access connections must be secured using authentication and encryption software. ______ software confirms the identity of the user or computer system.
Authentication
Of following, ___ has the most bandwidth.
CAT 7 cable
Often IP addresses are structured and assigned by a service called a(an) _____ or by a network administrator.
DHCP
(a) The bandwidth required by streaming video offered by companies such as Hulu and Netflix made unlimited ___ plans relatively expensive. (b) Being able to surf the Web, watch videos, and listen to streaming audio is why cell service with a(n) ____ plan is extremely popular in the United States. (c)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 United States.
Data
Installing the printer is the third step in setting up a Wi-FI network at home.
False
(a) The network portion of an IP address which is also called the ___ identifier is indicated by a certain number of bits, starting with the left-most bit. (b) 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. (c) 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 is called a
Network
IP Addresses are assigned by the Internet Corporation for Assigned Names and ___ (ICANN)
Numbers
If your Internet download or upload speeds are lower than advertised, contact your Internet Service
Provider
(a) The standard for home network security is ___. Be sure yours is activated and that you have a strong password. (b) WPA2 stands for Wi-Fi Protected ___ Version 2. (c) The standard for wireless network privacy and protection is known as _____.
Wi-Fi Protected Access 2 (WPA2)
The fastest growing Internet Service Provider media is
cellular Internet service
The technology that allows the electronic communication of business-oriented transactions and information between people and organizations is called electronic
data interchange
The cable that is most commonly used within a network is called ___ and is sold by category (CAT-7, for example).
ethernet cable
The transmission media with the largest bandwidth is
fiber-optic cable
(a) A __ is a security system separating two networks or even computers on the same network. (b) A security system separating two networks or even computers on the same network is a
firewall
Broadband is usually measured in
millions of bits per second (Mbps)
In urban areas, the cell towers become more numerous and the cell signals transmitted by the cell towers are ____, than those in less populated areas.
weaker
Which three of the following statements are true regarding troubleshooting network hardware issues?
(a) If your network is not working it is a good idea to check the status of the indicator lights. (b) Sometimes firmware updates can occur that can cause a network outage. If you experience trouble you may need to reboot the hardware device. (c) A device that is not positioned properly can cause weak signals and system issues.
Which three of the following statements are true about WANs?
(a) Large organizations with many offices located across the globe often have individual LANs in each location that need to be connected in order to share data and information. (b) When two or more LANs have been connected using a public network a WAN or Wide Area Network is created. (c) The largest WAN on earth is the Internet.
Which two of the following are characteristics of fiber-optic lines?
(a) Made of one or thousands of fibers (b) High-speed transmission
Which 3 of the following are true regarding Wi-Fi?
(a) Multiple devices can be connected to one signal. (b) Transmit Internet signals via radio waves. (c) Transmission connections are known as hotspots.
Which three of the following statements are true about client/server networks?
(a) Server-based models are popular because they provide more security than a peer-to-peer network. (b) In this type of network when a client requests information or access to the Internet the request is controlled by the server. (c) Server-based networks are designed to have individual computers and devices connected to the network interact through a central server computer.
Which two of the following sites offer Internet speed test services?
(a) Speedtest.net (b) TestMy.net
Which of the following are the expenses found on a typical cell phone bill?
(a) Taxes and surcharges (b) Line charges (c) Data plan charges
If you receive both a modem and a wireless router from your ISP, place the following steps in the correct order if you wished to setup a Wi-Fi network.
(a) Using either coaxial (for a cable modem), or twisted pair (for a DSL modem), connect the modem to the appropriate outlet (b) Using Ethernet cable, connect the modem to the wireless router (c) Turn on your computer and connect to the Wi-Fi signal
Which of the following are examples of EFT transaction?
(a) Using your debit card to purchase gas (b) Automated teller machine (ATM) withdrawal of cash to use to buy a concert ticket (c) Direct deposit of your paycheck
Which two of the following are true regarding IP addresses?
(a) When you purchase your Internet service from an ISP you receive the right to use their block of assigned addresses. (b) IP Addresses are assigned by the Internet Corporation for Assigned Names and Numbers (ICANN).
Which three of the following are the common reasons for purchasing broadband Internet service?
(a) You have several devices online at the same time. (b) You want to stream music or video. (c) You need relatively high-speed Internet service.
Television cable is also known as
(a) coaxial (b) coax cable
The _____ portion of an IP address is indicated by the remaining bits that are present after the network identifier and identify the host of the network.
(a) host
(a) A public Wi-Fi site is referred to as a (a) A Wi-Fi connection is often referred to as a
(a) hotspot (a) hot spot (a) internet hotspot
When choosing a cell phone provider, factors to consider include:
(a) network size/coverage (b) pricing (c) service speed
Sometimes called "cell phone carriers" or "mobile network operators," cell phone ___ sell subscriptions for cellular service.
(a) providers (b) provider (c) companies
Because of the significant costs of data packages and other smartphone expenses, calling and ___ charges tend to be among the least expensive costs of owning a cell phone.
(a) texting (b) SMS (c) messaging
Three common servers include:
(a) web servers (b) file servers (c) e-mail servers
A wireless router that transmits Wi-Fi signals on two separate frequencies is a
Dual Band Router
Which technology allows the electronic communication of business-oriented transactions and information between people and organizations?
EDI (Electronic Data Interchange)
The technical term for electronic or online banking. _____ uses computers and various technologies in place of checks and other paper transactions to transfer funds from one account to another.
Electronic funds transfer (EFT)
The largest WAN on the earth is the
Internet
(a) Servers identify your router by its __ address. (b) When you request information from a website such as Wikipedia, the way its server knows which router to send the requested information to is because your router is identified by its
Internet Protocol (IP)
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
Because of the large infrastructure cost of building antennae and mobile switching stations, as well as leasing the rights to use radio frequencies, only ____ companies can compete nationally as cell phone providers.
Large
(a) A switch tracks which device within a network sent a request based on the device's (b) Every computer connected to a network has a network interface card that contains a unique ___, allowing the switch to identify it.
MAC address
Radio waves that transmit Internet signals to and from satellites in space are called
Microwaves
The device in a network that coverts analog (wave) signals into binary (digital) signals and vice-versa is a
Modem
The word "modem" stands for:
Modulator-Demodulator
(a) The device in a network that keeps track of connected devices' MAC addresses and is usually incorporated in a router is the (b) The device that allows several computers to use your home network with just one Internet connection is called a ___.
Switch
Many 4G and 5G cellular Internet Service Providers offer a device that serves as a hotspot for your home and includes an integrated modem and router.
True
Sprint, T-Mobile, AT&T, and ___ are the major national cell phone providers in the United States.
Verizon
(a) The original protocol (standard) for Wi-Fi security that was widely introduced in 1999 but replaced in 2003 was known as (b) WEP stands for ___ equivalent privacy. WEP has been replaced by the far more secure WPA2 protocol.
WEP (Wired Equivalent Privacy)
(a) The wireless network privacy standard that was introduced in 2003 but was quickly replaced due to vulnerabilities was (b) WPA stands for Wi-Fi ___ access.
WPA (Wi-Fi Protected Access)
The devices inside your phone that convert analog waves (such as sound waves) into digital signals that your phone can process are called __________.
analog-digital converters
A local ___ network (LAN) is a collection of computers that are connected in a small geographic area such as an office, college campus, or in your home.
area
(a) The volume of data that can be carried on an Internet transmission media in an amount of time is called (b) The amount of data that a transmission media can carry in a given amount of time is called the media's
bandwidth
(a) An Internet connection that has enough bandwidth to allow multiple computers to be connected to the same router is called a (b) An Internet connection capable of supporting multiple devices at once is called a
broadband connection
(a) A computer that requests resources such as a web page, spreadsheet, image file, or services from another computer on a network is called a _____. (b) In a server-based network the individual computers and devices (or software) that make requests are called _____.
client(s)
Smartphones are computers and can only process digital data. For this reason, all incoming sound waves must be changed to digital signals. This is done by a digital-analog
converter
The technical term for electronic or online banking that uses computers and various technologies in place of checks and other paper transactions to transfer funds from one account to another is called
electronic fund transfer (EFT)
Fiber-optic cable is ___ to install than coaxial (television) cable.
more expensive
(a) If you just need a phone for emergencies, you might consider which of the following? (b) If you do not want to sign a long-term contract, you might choose to purchase a
prepaid phone
A virtual _____ network (VPN) creates a secure connection between two computers.
private
IT professionals spend a lot of time protecting networks from unauthorized connections from outside into a LAN. However, there are times when it is necessary to allow outside connections to a LAN. This is referred to as
remote access
(a) If you are in an area where your home network has no cell coverage, you may need to use the cellular network of a different provider. This is called (b) If you are in an area where your home network does not have any cell coverage, but you are still able to make a call, you are probably:
roaming
The device that divides and connects two networks is a
router
(a) Sometimes called an MSC server, the Mobile ____ Station identifies your phone's signal so that you can receive calls. (b) The cell tower's base transmission station is connected to a mobile ____ station.
switching
A cell phone tower is connected to a base ___ station that transmits weak microwave signals through the tower's antennae to create "cells" of coverage.
transceiver
(a) Your Internet signal is carried on a (b) The specific means by which your Internet signal is carried is called its
transmission media
Telephone wire is also called
twisted pair wire
Which three of the following statements are true regarding how IP addresses are determined?
(a) An IP address is determined by the network on which it is hosted. (b) All hosts on the same network share the same established network address, but are assigned a unique host number. (c) Often IP addresses are structured and assigned by a service called a Dynamic Host Configuration Protocol (DHCP).
Which three of the following statements are true regarding dual-band routers?
(a) Can transmit Wi-Fi signals in the 2.4 GHz frequency range (b) Can transmit Wi-Fi signals in the 5.0 GHz frequency range (c) Can minimize the Wi-Fi signal's interference from microwave ovens and car alarms
Which three of the following are characteristics of microwaves?
(a) Capable of transmitting Internet signals over long distances. (b) Used to transmit Internet signals to and from satellites. (c) Used to transmit Internet signals where wires may be impractical.
Which of the following are the functions of a mobile switching station?
(a) Changes the cell and base station your transmissions go through as you travel (b) Assigns frequencies to your calls (c) Sends your call to the receiver's MSS.
Which three of the following statements are true about troubleshooting a home network?
(a) Check to make sure the cables are not damaged and that all cables are properly connected. (b) A poor signal can be an indicator that the hardware is outdated or improperly positioned. (c) A device that is not positioned properly can cause weak signals and system issues.
(a) Which three of the following are commonly used Internet transmission media? (b) Which 3 of the following are commonly used Internet transmission media?
(a) Coaxial cable (a) Ethernet cable (a) Fiber optic cable ------------------------------ (b) Coaxial (TV) cable (b) Telephone wire (b) Wi-Fi radio waves
Which of the following are the characteristics of a base transceiver station?
(a) Connected to a cell tower (b) Sends phone signals to the cellular provider's mobile switching station (MSS) (c) Broadcasts weak microwave signals to create "cells" of mobile coverage
Which three of the following are characteristics of a router?
(a) Connects networks (b) Provides hardware firewall protection (c) Usually incorporates switches
(a) Router (b) MAC address (c) Modem (d) Switch
(a) Connects two networks (b) Identifies a device within a network (c) Converts analog signals into digital signals, and digital signals into analog signals (d) Connects devices within a network
Which three of the following are the characteristics of cellular service?
(a) Fastest-growing means of accessing the Internet (b) Allows mobile devices to access the Internet (c) Many smartphones can convert cellular signals into Wi-Fi signals