CIT 1351: Chapter 13-Internet Connectivity

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t/f 1) Synchronous transmissions require a clock to send or receive data.
true
t/f 2) The start bit is used with asynchronous transmissions and signals the beginning of transmission.
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t/f 3) The start bit is used with asynchronous transmissions and signals the end of transmission.
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t/f 4) A serial device transmission speed is measured in bits per second.
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t/f 5) A BIOS converts a data byte into single transmission bits.
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t/f 6) The PSTN is primarily used for video transmissions.
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t/f 7) The normal data bits per data word is 8 bits per word on a serial device.
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t/f 8) The normal parity setting for a modem is 1.
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t/f 9) The FIFO modem setting enables the UART buffer.
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t/f 10) The hardware flow control method is used to start modems.
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t/f 11) The XON/XOFF flow control method uses control characters to signal data transmission.
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t/f 12) Modems use a straight-through modem cable.
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t/f 13) To connect two computers and transfer data between them without a modem, a straight-through modem cable is used.
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t/f 14) A device that enables a computer to connect to an analog phone line is a modem.
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t/f 15) A modem takes a signal from the phone line and converts it to digital format for input into the computer.
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t/f 16) A modem that has error correction keeps the processor from having to verify the accuracy of the data.
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t/f 17) A modem that has data compression must transmit less data than one that does not have this ability.
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t/f 18) Fax machines can be considered part of VoIP.
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t/f 19) Full-duplex transmissions enable transmission in both directions, but only one direction at a time.
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t/f 20) A cable modem connects a computer to a TV network using coaxial cable.
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t/f 21) When using a cable modem, the term downstream refers to data pulled from the Internet.
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t/f 22) A cable modem can connect via an Ethernet cable or a USB cable to the PC.
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t/f 23) A type of digital phone line that has three channels is DSL.
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t/f 24) Mentoring is a part of a good technicianʹs job.
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25) QoS is not available for VoIP traffic on the Internet.
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t/f 26) The most common type of DSL is ADSL.
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t/f 27) DSL provides dedicated bandwidth to each DSL household.
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t/f 28) Cable modems require phone filters.
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t/f 29) A DSL or cable modem’s link status light shows when power is applied to the device.
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t/f 30) Satellite-based Internet connectivity commonly requires a satellite dish.
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t/f 31) Wireless broadband connectivity normally involves either a cable or DSL network.
true
t/f 32) WiMAX can be used to provide connectivity through the cellular network.
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t/f 33) The Security Internet Options tab is used to configure Parental Controls.
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t/f 34) Malware has configured your Internet Explorer browser to open to a weird website. The Internet Explorer Privacy tab can be used to change this behavior.
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t/f 35) The Internet Explorer General tab can be used to change the size of the text displayed within the Browser.
true
t/f 36) Almost all browsers are customizable.
B) Asynchronous
________ transmissions add extra bits to the data to track when each byte starts and stops.
A) Compressed
B) Asynchronous
C) Synchronous
D) Digitized
C) Modem
Which of the following is a serial device used even today?
A) Mouse
B) Scanner
C) Modem
D) Digitizer
E) None of these answers are true.
A) 1
How many bits at a time are transmitted by a serial device?
A) 1
B) 4
C) 6
D) 8
A) Serial transmissions send 1 bit at a time instead of 8.
Why do serial transmissions travel slower than parallel transmissions?
A) Serial transmissions send 1 bit at a time instead of 8.
B) Parallel cables are made of more conductive material than serial cables.
C) Serial transmissions can travel farther than parallel transmission.
D) Parity checking of data slows a serial transmission.
A) VoIP
Which technology would support talking to a friend in Europe over the Internet?
A) VoIP
B) PSTN
C) QoS
D) Convergence
B) Convergence
What term describes the sending of data, voice, and video over the same network?
A) Asynchronous communication
B) Convergence
C) QoS
D) Telecomputing
B) The PSTN
A traditional phone call would be made using …
A) Convergence
B) The PSTN
C) A LAN
D) QoS
E) DSL
A) Wireless broadband
Jaqueline, the new technician, has a customer that connects to the Internet from his laptop and uses the cellular network because of the remote locations the customer must visit for his job. What technology is the customer using?
A) Wireless broadband
B) DSL
C) Cable modem
D) Satellite modem
D) Wireless hotspot
Marc, a money making banker, is having a great time with his smartphone. He just enabled a feature that allows Internet connectivity to his tablet when a wireless network is not available using any other method. What feature did Marc just enable?
A) WiMAX
B) QoS
C) Wireless broadband
D) Wireless hotspot
D) A wireless hotspot
The Jacksonville Landing was one of the first locations in the country to offer free wireless Internet access to anyone eating, visiting, or walking by the waterfront property. What technology was installed at the Jacksonville Landing?
A) PSTN
B) DSL
C) Wireless broadband
D) A wireless hotspot
D) WiMAX
What technology would be used as a backhaul method to carry cellular calls between remote areas?
A) Wireless hot spot
B) PSTN
C) VoIP
D) WiMAX
A) 802.16
What 802 standard defines WiMAX?
A) 802.16
B) 802.11n
C) 802.2
D) 802.11i
A) 802.16
What network technology would use a non-line-of-site tower?
A) 802.16
B) Wireless hot spot
C) QoS
D) PSTN
C) Line-of-sight network
What type of technology does WiMAX use to send data between two towers?
A) Wireless hot spot
B) Satellite connectivity
C) Line-of-sight network
D) Dial-up
C) The option is not enabled in BIOS.
A laptop cannot connect to a wireless WAN even though the laptop sold with wireless broadband connectivity. What is the most likely issue?
A) The antenna is not attached.
B) The BIOS needs to be flashed.
C) The option is not enabled in BIOS.
D) The laptop is defective.
B) Google Chrome
Little Jimmy Jumprocks is on his mom’s computer to get free food. What graphical interface will little Jimmy use?
A) Acrobat Reader
B) Google Chrome
C) Wireless hot spot
D) Web-in-a-Box
A) Internet Explorer
What browser ships with Windows 7?
A) Internet Explorer
B) Windows Explorer
C) Firefox
D) Chrome
C) General
Which IE tab enables you to configure the web page that opens when the browser application starts?
A) Connections
B) Programs
C) General
D) Content
C) General
Which IE tab enables you to delete all the saved information such as recently visited websites?
A) Connections
B) Programs
C) General
D) Content
C) General
Which IE tab enables you to open a new window when a new tab is clicked?
A) Connections
B) Programs
C) General
D) Content
C) General
Which IE tab enables you to change the color of the words presented in the browser?
A) Connections
B) Programs
C) General
D) Content
E) Security
Which IE tab enables you to enter websites that you do not trust so they will be blocked?
A) Connections
B) Programs
C) General
D) Content
E) Security
C) Privacy
Crazy Kelly keeps going to naughty websites. Her parents are beside themselves. Which IE tab should the parents use to set parental controls?
A) Connections
B) Programs
C) Privacy
D) Content
E) Security
A) Connections
Diligent Dan needs to configure a VPN on his laptop so that he can work 20 more hours a week from home. Which IE tab should Dan use to configure the VPN connection?
A) Connections
B) Programs
C) Privacy
D) Content
E) Security
B) Programs
Jane is a Cisco Academy professor. Jane has some online testing software that uses the Java plug-in. Which Internet Explorer tab can Jane use to ensure that the plug-in is installed?
A) Connections
B) Programs
C) Privacy
D) Content
E) Security
D) Content
Iggy, the PC technician, has a client that wants the name, company name, company phone number, and so on automatically entered on sites where the client frequently visits for business reasons. Which Internet Explorer tab can Iggy use to configure this request?
A) Connections
B) Programs
C) Privacy
D) Content
E) Security
B) Programs
Stacy’s parents are always goofing up their computer. This time, when they updated their Acrobat Reader they added the Google toolbar. Now they don’t like that toolbar. Which Internet Explorer tab can Stacy use to remove that toolbar?
A) Connections
B) Programs
C) Privacy
D) Content
E) Security
A) Allows configuration of search providers
What is the purpose of the Search area on the Internet Explorer General tab?
A) Allows configuration of search providers
B) Configures indexing for web searches
C) Allows configuration of information that is automatically inserted on Internet searches
D) Defines the colors shown in the search window
A) Towers used to transmit data
What is a line-of-site backhaul?
A) Towers used to transmit data
B) Another name for a wireless hot spot
C) Another name for the last mile where the Internet connects directly to a business
D) The connection between the satellite receiver and the satellite
C) A web browser
What is Google Chrome?
A) An ISP
B) A provider of QoS
C) A web browser
D) A type of WiMAX
D) Troubleshooting research
For what would a technician use Mozilla Firefox?
A) Provide QoS to a VoIP phone
B) Connect a particular tablet application to the cellular network
C) Wireless connectivity to a WiMax tower
D) Troubleshooting research
B) Helping other technicians who are not as skilled as you are
What is mentoring?
A) Being a proactive technician
B) Helping other technicians who are not as skilled as you are
C) Learning a new skill
D) Using normal language around nontechnical personnel
C) Can easily connect to a different computer without taking the computer apart
An advantage of an external modem is .
A) Less expensive than internal modems
B) Come with its own UART
C) Can easily connect to a different computer without taking the computer apart
D) All these answers are true.
B) Must coordinate the speed of the UART with the speed of the modem
Which of the following is NOT a disadvantage of an internal modem when compared to an external modem?
A) Places a larger load on the computerʹs power supply
B) Must coordinate the speed of the UART with the speed of the modem
C) Generates more heat
D) Requires an expansion slot
D) The initial cost is high
What is one disadvantage to using a satellite modem that would affect a high school student?
A) Expansion slot requirement
B) Lack of Internet access
C) Lack of VPN support
D) The initial cost is high
D) ADSL uses faster downstream speeds than upstream.
What does asymmetrical mean in relation to an ADSL modem?
A) The modem has an irregular shape to fit more compactly into the computer slot.
B) The modem uses a D connector.
C) The modem has a disproportionate amount of memory in relationship to the processor speed on the modem.
D) ADSL uses faster downstream speeds than upstream.
D) Phone line isolator
Which of the following is the best preventive maintenance for a modem?
A) Surge protector
B) Toner protector
C) Call waiting
D) Phone line isolator
E) DSL
What term describes traditional voice traffic going over the Internet?
A) Gateway
B) Bandwidth
C) Aggregation
D) VoIP
E) DSL
C) Phone cable
What is the most likely culprit if an analog modem shows a ʺNo dial toneʺ message?
A) Modem
B) Serial cable
C) Phone cable
D) Power to modem
E) Software setting mismatch with hardware
B) Phone line noise
What is the number one cause of an analog modem transmitting at a less-than maximum speed?
A) Number of digital-to-analog and analog-to-digital conversions between the home and the POP
B) Phone line noise
C) Power surges
D) The number of people in the same geographic area that subscribe to the same provide
C) Incorrect settings
If incorrect characters appear on the screen of a modem that is attempting to connect, what is the most likely culprit?
A) Serial cable
B) Phone cable
C) Incorrect settings
D) Phone line noise
B) Front panel lights
The best troubleshooting tool used when a cable or DSL modem that used to work but now does not work is _______.
A) Online diagnostics
B) Front panel lights
C) Modem manual
D) Modem vendor technical support center
D) Mentoring
What term is used to describe a technician that helps another technician to learn the trade?
A) Networking
B) Being reactive
C) Being proactive
D) Mentoring
A, E
What are two reasons why a PC technician must know about VoIP?
A) VoIP phones are commonly installed by technicians.
B) A technicians must be proactive.
C) VoIP is installed in many businesses for fax connectivity.
D) A technician uses VoIP to test a PC installation.
E) A software application used for VoIP might need to be installed, tested, and repaired when there is a problem.
A, B, C, D, E, F, G
Which connectivity options are used to connect to the Internet? (Select all that apply.)
A) Satellite modem
B) Dial-up modem
C) VoIP
D) PSTN
E) DSL
F) Cable modem
G) WiMax
H) TelePort
E
Satellite modem
E. Needs a dish
F. 56Kbps maximum
G. Uses a TV network
B
laptop modem
A. Cellular WAN
B. Type II PC Card
A
wireless broadband
A. Cellular WAN
B. Type II PC Card
C
ADSL
C. Uses traditional phones network for fast access
D. Has two B channels
G
cable modem
E. Needs a dish
F. 56Kbps maximum
G. Uses a TV network
D
ISDN
C. Uses traditional phones network for fast access
D. Has two B channels
F
analog modem
E. Needs a dish
F. 56Kbps maximum
G. Uses a TV network
B
Compression
A. Adds Extra bits for timing
B. Makes transmissions smaller
C. Displaying a web page
E
VoIP
D. Connects PC to the outside world
E. Carries voice on a TCP/IP network
C
downstream
A. Adds Extra bits for timing
B. Makes transmissions smaller
C. Displaying a web page
A
asynchronous
A. Adds Extra bits for timing
B. Makes transmissions smaller
C. Displaying a web page
D
modem
D. Connects PC to the outside world
E. Carries voice on a TCP/IP network
modem
1) A device that enables a computer to connect to a phone line is a/an _______.
modem
2) A/An _______ takes a signal from the phone line and converts it to digital format for input into the computer.
synchronous
3) _______ transmissions require a clock to send or receive data.
start
4) The _______ bit is used with asynchronous transmissions and signals the beginning of transmission.
stop
5) The _______ bit is used with asynchronous transmissions and signals the end of transmission.
bits per second
6) Transmission speed for a serial device is measured in _______.
asynchronously
7) A/An _______ converts a data byte into single transmission bits.
56 Kbps
8) An analog modem can transmit at a maximum of _______ if only one analog-to-digital conversion occurs; otherwise, data transmits at a lower rate.
VoIP
9) _______ allows voice traffic to be sent over a transitional data network.
ISDN
10) A type of digital connection that has three channels is _______.
cable
11) A/ An _______ modem connects a computer to a TV network using coaxial cable.
downstream
12) When using a cable modem, the term ________ refers to data pulled from the Internet.
satellite
13) A/An ________ modem enables connectivity in remote places using a device in orbit around the Earth.
wireless WAN
14) Another name for wireless broadband is _______.
broadband
15) A connectivity wireless option for mobile devices that uses the cellular network is wireless ________.
WiMax
16) _______ is used for line-of-sight backhauls.
If an external cable modem is being used, the NIC takes data from the modem and brings it into the computer. When the computer wants to send data, the NIC takes the data and sends it to the modem.
1) Using good grammar explain what the purpose of the NIC when a cable modem is being installed.
Asymmetrical means that the download and upload data speeds are not the same. Download speeds are always faster.
2) Using good grammar explain what asymmetrical means in relation to an ADSL modem.
By mentoring someone else, your own technical skills improve. Mentoring helps build business relationships. Mentoring shows you are a team player.
3) Using good grammar list two ways mentoring can help in the IT field.