Deck 6: Telecommunications and Networks

Question 1

Over 90 percent of physicians and over 85% of nurses own a smartphone and are using them as a valuable tool to provide patient services.

Answer 1

False

Question 2

A wireless mesh network uses multiple Wi-Fi access points to link a series of interconnected local area networks to form a wide area network capable of serving a large campus or an entire city.

Answer 2

True

Question 3

A telecommunications protocol is any material substance that carries an electronic signal to support communications between a sending and receiving device.

Answer 3

False

Question 4

Sending an e-mail message is an example of asynchronous communications.

Question 5

Broadband communications means high-speed, wireless communications.

Question 6

In a circuit switching network, no fixed path is created between the communicating devices, and the data is broken into packets for sending over the network.

Question 7

Long Term Evolution is a standard for wireless communications for mobile phones based on packet switching.

Question 8

A half-duplex channel can transmit data in either direction but not both simultaneously.

Question 9

Unfortunately, there is no single, unified, worldwide standard for 3G communications which simplifies the deployment of 3G communications equipment and devices.

Question 10

A personal area network is a wireless network that connects information networking devices within a small area, such as an office, home, or several floors of a building.

Question 11

A geo-stationary satellite orbits the earth in a very low orbit at an altitude of less than 1,000 miles.

Question 12

With centralized processing, multiple computer platforms are dedicated to special functions, such as database management, printing, communications, and program execution.

Question 13

Telecommunications is creating profound changes in business because it strengthens the barriers of time and distance.

Question 14

A metropolitan area network is a telecommunications network that connects users and their computers in a geographical area that spans a campus or city.

Question 15

With distributed processing, processing devices are placed at remote locations but are connected to each other via a network.

Question 16

The ITU defines and adopts global standards to facilitate communications among network and equipment manufacturers around the world.

Question 17

A client is any computer on a network that sends messages requesting services from the servers on the network.

Question 18

In a circuit-switching network, no fixed path is created between the communicating devices and the data is broken into packets for sending over the network.

Question 19

The growth in wireless data traffic is expected to increase modestly over the time period 2011 to 2016.

Question 20

Channel bandwidth refers to the diameter of the telecommunications media.

Question 21

Smartphones have their own software operating systems and are capable of running applications that have been created for that operating systems or any other operating system.

Question 22

_____ is a very short range wireless connectivity technology that enables consumers to swipe their credit cards or even cell phones within a few inches of a special point of sale terminal to pay for purchases.

A) Ultra wideband
B) Bluetooth
C) Near field communications
D) Wi-Fi

Question 23

Network management software controls the computer systems and devices in a network and allows them to communicate with each other.

Question 24

A(n) ______ enables users to share a certain number of outside lines to make telephone calls to people outside the organization.

A) DSL
B) Wi-MAX
C) modem
D) PBX

Question 25

A digital subscriber line deliver high-speed Internet access to homes and small businesses over existing phone lines.

Question 26

With a VPN ______

A) users are often provided a token that displays a constantly changing password
B) users can gain access to an organization's private network
C) users can gain wide area network access
D) all of the above

Question 27

_____ is a bundled set of communications services, including Internet, telephone, and TV, that operates over a total fiber-optic communications network.

A) BPL
B) Bluetooth
C) FiOS
D) Cable communications

Question 28

A PBX is a communications system that manages both voice and data transfer within a building and to outside lines; it can be used to connect hundreds of internal phone lines to a few phone company lines.

Question 29

_____ is a form of wireless communications frequently used in security systems for sensing and controlling energy-consuming devices.

A) Wi-Fi
B) Bluetooth
C) ZigBee
D) WiMax

Question 30

_____ is a wireless telecommunications technology brand owned by an alliance of 500 technology companies that is popping up at airports, coffee shops, college campuses, libraries, and restaurant.

A) Wi-MAX
B) Wi-FI
C) Sci-FI
D) UWB

Question 31

_____ operates like Wi-Fi, only over greater distances and at faster transmission speeds.

A) Broadband
B) ZigBee
C) Wi-MAX
D) Ultra Wideband

Question 32

'A VPN supports a secure, encrypted connection between an organization's private network and remote users.

Question 33

Modems convert analog signals to digital signals for transmission over a network.

Question 34

The RIM operating system is used in the _____ smartphone.

A) Apple iPhone
B) Palm smartphone
C) BlackBerry devices
D) Android

Question 35

GPS receivers receive the signals from four GPS satellites to determine a highly accurate location of the receiver, even though just three signals are sufficient.

Question 36

Most wireless networks now use the Wired equivalent privacy (WEP) protocol that offers significantly improved protection over Wi-Fi Protected Access (WPA) security protocol.

Question 37

The _____ is a device that combines data from multiple data sources into a single output signal that carries multiple channels.

A) transmission media
B) modem
C) multiplexer
D) switch

Question 38

_____ is a 4G alternative operated by Clearwire.

A) Ultra wideband
B) HPSA+
C) Bluetooth
D) WiMAX

Question 39

The area covered by one or more interconnected wireless access points is commonly called a(n) _____.

A) reception area
B) hot spot
C) coverage zone
D) access area

Question 40

A(n) _____ satellite system employs many satellites, each in an orbit at an altitude of less than 1,000 miles.

A) very small aperture
B) microwave
C) low earth orbit
D) geostationary

Question 41

Unified communications supports _____.

A) instant messaging
B) e-mail
C) voice mail
D) all of the above

Question 42

_____ is a(n) transmission media type that uses twisted pairs of copper wire that may be shielded or unshielded.

Question 43

_____ is a network that connects users and their computers in a geographical area that spans a campus or a city.

A) Metropolitan area network
B) Local area network
C) Wide Area network
D) Personal area network

Question 44

_____ are NOT commonly used smartphone operating systems

A) Symbian and Palm OS
B) iPhone OS and RIM OS
C) HP-UX and z-OS
D) Android and Windows Mobil

Question 45

_____ uses a multiple Wi-Fi access points to link a series of interconnected local area networks to form a wide area network capable of serving a large campus or entire city.

Question 46

Asymmetric DSL _____.

A) provides high speed Internet access over a subscribers cable network
B) requires an additional phone line to provide "always on" Internet access
C) provides a dedicated connection from each user to the phone company's local telephone office
D) provides a level of service that is independent of how far the subscriber is from the local telephone office

Question 47

Telecommuting is well suited for _____.

A) salespeople
B) people who require frequent face-to-face interaction
C) people who need much supervision
D) people working on many tasks with very short term deadlines

Question 48

Mbps stands for _____ .

Question 49

The signals from _____ GPS satellites are used to determine the accurate position of a GPS receiver.

A) three
B) four
C) five
D) none of the above

Question 50

Current Wi-Fi access points have a maximum range of about ______ outdoors.

Question 51

With the _____ basic processing alternative, processing devices are placed at various remote locations and each device is isolated and does not communicate with any other processing device.

A) distributed processing
B) file processing
C) centralized processing
D) decentralized processing

Question 52

A(n) _____ is any material substance that carries an electronic signal to support communications between a sending and receiving device.

Question 53

A(n) _____ are a type of two-dimensional barcode that can be scanned by users with smartphones to display text or connect to a wireless network and open a Web page on the smartphone's browser.

A) RFID code
B) VPNs
C) quick response codes
D) WiMax code

Question 54

One way to help safeguard a wireless network is to _____

A) connect to the router and change the default logon and password
B) enable service set identifier broadcasting
C) configure the security to WEP
D) none of the above

Question 55

The National Do Not Call Registry ______

A) allows you to still receive calls from political organizations
B) is designed to stop unsolicited calls from advertisers, salespeople, and political campaigns
C) has actually resulted in an increase in the number of unwanted calls to consumers
D) includes fewer than 10 million people

Question 56

With network management software, a network manager can _____

A) monitor the use of individual computers as well as shared hardware devices
B) scan for licenses
C) ensure compliance with software licenses
D) all of the above

Question 57

_____ refers to the electronic transmission of signals for communications.

Question 58

______ is a communications service that delivers recorded emergency notifications to users in a selected geographic area.

A) Digital subscriber line
B) VPN
C) Mail-to-text
D) Reverse 911

Question 59

A(n) _____ channel permits data transmission in both directions at the same time.

Question 60

Smartphone applications are developed by _____.

A) manufacturers of the handheld device
B) operators of the communications network on which they operate
C) third-party software developers
D) all of the above

Question 61

_____ is a wireless communications technology that transmits large amounts of digital data over short distances of up to 30 feet using a wide spectrum of frequency bands and very low power.

Question 62

Briefly describe a general model of telecommunications.

Question 63

_____ distribution lets you send and receive documents in a digital form without printing them.

Question 64

_____ is a common form of guided transmission media that uses extremely this strands of glass bound together in a sheathing and light beams to transmit signals.

Question 65

_____ is a location where an organization handles customer and other telephone calls, usually with some amount of computer automation.

Question 66

A(n) _____ is a satellite ground station with a dish antenna smaller than 3 meters in diameter.

Question 67

A low cost form of wireless communications technology often used in security systems and heating and cooling systems.

Question 68

_____ transmission involves the broadcast of communications in one of three frequency ranges: microwave, radio, and infrared.

Question 69

_____ is a very short range wireless connectivity technology designed for cell phones and credit cards.

Question 70

_____ is a network device that serves as an entrance to another network.

Question 71

A(n) ______ forwards data packets across two or more distinct networks toward their destinations through a process known as routing.

Question 72

Long term evolution is a standard for wireless communications for mobile phones based on ______.

Question 73

In a(n) _______network, the communicating devices, and the data is broken into packets for sending over the network.

Question 74

List several benefits associated with telecommuting.

Question 75

A(n) ______ network is a telecommunications network that connects large geographic areas.

Question 76

With ______ software, a manager on a networked personal computer can monitor the use of individual computers and shared hardware, scan for viruses, and ensure compliance with software licenses.

Question 77

_____ is a form of transmission that employs signals at a frequency higher than microwave signals but lower than visible light.

Question 78

_____ a wireless communications specification that describes how cell phones, computers, and printers can be connected over distances of 10-30 feet at a rate of about 2 Mbps and allows users of multifunctional devices to synchronize information.

Question 79

Briefly describe how a Wi-Fi network operates.

Question 80

The computers and devices on a network are also known as _____.