Module 1-3

In a digital integrated circuit such as a microprocessor, a logical 0 value is usually represented as:

A low or near-zero voltage

An integrated circuit (also called computer chip, microchip, or simply chip) is:

A set of microscopic electronic components

A wired Ethernet jack looks like:

A slightly over-sized jack for a wired telephone

Because of its low power consumption, the most popular processor for smartphones is:

ARM

If your laptop has a MiniDisplay port for the external video but your monitor has only a DVI connection, you need:

An adapter

Which file-sharing protocol distributes the role of a file server across a collection of dispersed computers?

BitTorrent

What should be your first step when setting up a home router?

Set up a new password for configuring the router

Last week you noticed that your IP address on the free WiFi at the Student Center was 10.9.32.16. Just now it is 10.9.32.85. This means your address is:

Dynamic

What is the textbook's recommended backup system for macOS computers?

Time machine

When you are using a public WiFi hotspot, the textbook's (and your professor's) recommendation about file sharing on your laptop is:

Turn it off

Arturo just spilled his bottled water all over his laptop. What would be the wisest action for Arturo to take first?

Turn the laptop off.

If your usual DNS server goes down, you might bypass the problem by:

Using one of Google's public domain name servers

The bandwidth of a channel that carries digital data is usually measured in ___________.

bits per second

One important consideration when evaluating local storage options for digital devices is the amount of data that can be stored, referred to as _____.

capacity

Dreandrea scans the results of an Internet search, looking for links that lead to Web pages hosted by educational institutions because she feels that they are more trustworthy. Dreandrea is _____.

checking the top-level domains for each domain name in the search results

To select the product that will best fit your needs when purchasing a new digital device, you should begin by _____.

considering how you plan to use your device

A microprocessor instruction set _____.

contains a collection of directions for actions that its circuitry can perform

In a microprocessor, instructions to be executed are fetched by the _____.

control unit

Which device should you purchase if you want an affordable system that is ideal for dedicated gamers, serious designers, desktop publishers, and video editors?

desktop

Software that helps a peripheral device establish communication with its host device is called a _____.

device driver

The advantages of liquid crystal display (LCD) screens include _________________.

display clarity

When network protocols clean a corrupted signal, the process is called ______________.

error correction

Which type of cable is used for high-capacity trunk lines that provide the main routes for telephone, cable, and Internet communications?

fiber-optic cables

DSL is an example of what type of Internet access?

fixed

Solid state storage is also known as:

flash memory

A message is divided into several packets that can be routed independently to their destination during _____.

packet switching

Railroad trains can carry huge loads efficiently because they are composed of cars which are of similar sizes. Data can be carried more efficiently across the Internet because it is placed in _______________ of similar sizes.

packets

In which form of processing must all steps in the instruction cycle be completed before the microprocessor begins to execute the next instruction?

serial

When it is one of the fastest computers in the world at the time of its construction, a computer can be categorized as a(n) _________________.

supercomputer

When a computing device is turned on, the boot loader _____.

verifies that the computer's hardware is operating correctly

Marley loves her IoT thermostat, which allows her to adjust its temperature setting from an app on her smartphone. She maintains her home at a different temperature when traveling, and she realizes that would-be housebreakers could use this information to burgle her home in her absence. She should _____.

verify that her thermostat's IoT network encrypts data when it is transmitted and stored

Jared is using a BitTorrent network. He mentions this to his wife, who correctly points out that _____.

it would be illegal to share videos whose copyright is held by someone else on this network

Internet addresses are controlled by which of the following protocols?

IP

Meredith is preparing for an important business meeting via Skype with five participants, after which he plans to relax by watching some funny videos on YouTube shared by his sister. Which connection speeds listed would be considered adequate for watching the funny videos but not fast enough for his meeting?

1 Mbps download, 100 Kbps upload

Charlotte is examining the output from a network utility to determine the IPv6 address for her computer. Which of the following strings of characters should she identify as the IPv6 address?

2001:48a8:800:1192:198:110:192:54

If you see an error message indicating that you cannot copy a certain audio or video file because you have already made the allowed number of copies, the system used to impose this restriction is termed:

DRM (Digital Rights Management)

When you connect to a Wi-Fi hotspot, your digital device is classified as a _______________.

DTE

On a network, any device that stores or generates data is considered to be a(n) _________.

DTE (data terminal equipment)

Which of the following is difficult or impossible to reconstruct if not backed up?

Data files

You have just started a copy of a very large file from your laptop to a USB drive. To make sure the copy is complete before disconnecting the USB drive, you should use the ______ function of your operating system.

Eject

When setting up my new home router, I want to make sure that visitors using my WiFi cannot access the shared files on my desktop computer. What should I configure to do this?

Guest network

A clamshell device:

Has a keyboard as the base and a screen on the hinged cover

Which of the following is not a characteristic of solid state drives?

Highly sensitive to mechanical shock (ie, dropping)

If you register a domain name, the company you use for this has an arrangement with the top-level authority:

ICANN

A friend calls you in a panic because the hard drive in his Windows PC has failed. He asks you what he should do now. What next steps do you recommend to your friend?

Install a new hard drive and use your recovery drive to boot the computer.

Where does a Network Interface Device get its MAC (media access control, called "hardware" by Microsoft) address?

It is embedded in the device at manufacture time

Which of the following statements about cloud storage is false?

It is expensive compared to other forms of storage.

While signing up for satellite Internet service so you can work at home at a rural location, you are concerned about latency. So you should watch for:

LEO (Low Earth Orbit) satellites

How can you tell if a hotspot is NOT encrypted?

No password was required to connect to it the first time

traceroute (tracert on Windows) is used to troubleshoot Internet connections. I just did one on eclass.e.southern.edu, and several results were "Request timed out." But the site is actually working just fine for me! Why would I get this message?

One or more of the routers along the path are using defensive security measures.

While shopping for a new home, you are hoping for high-speed Internet to be available via fiber. Then you see a crew putting in a "carrier" that looks like a plastic pipe in the ground next to a power/telephone/cable pole. If they are putting in fiber, the color of that carrier is probably:

Orange

If your cable Internet service is sometimes delivering less than the speed quoted when you signed up, this means:

Other users are competing with you for the bandwidth your cable company has from the Internet

Into which component are data, application software instructions, and operating system instructions loaded each time a computer is powered on?

RAM

If you wish to set up a file in your home network so that others can look at it but not change it, the permission for that is:

Read

When setting up my home router, I wish for it to show on people looking for it as "WEGOFASTER". What is the name of the parameter in my router where I would put this name?

SSID

The most commonly used digital device in the world is:

Smartphone

The process of backing up a smartphone to a desktop or laptop computer is termed:

Syncing

On a network, which protocol is responsible for dividing files into chunks, adding headers containing information for reassembling packets in their original order, and verifying that the data was not corrupted while in transit?

TCP

Oops! I forgot to pay for something I picked up while shopping, and an alarm went off as I walked out the door. This happened because the item I hadn't paid for contained a:

Tag

If your Internet connection's packet loss is zero, this means:

The action in a video game you are playing will be smooth

OK, so we know radio waves like WiFI and cell phones require an antenna. Why don't we see antennas on laptops and cell phones?

The antenna is built into the case

What color is a microprocessor chip?

The color may vary and is unimportant

The wire used to bring a DSL connection into a home from the Internet Service Provider is:

The same kind used for standard telephones

The term form factor refers to:

The size and dimensions of a device or component

While setting up her wireless network, Maria decides to activate encryption on her router. She is offered a choice of several encryption protocols, and because it is the weakest and oldest option, she is careful not to pick _____.

WEP

The glue that holds the Internet together and makes it possible for data to travel across borders is:

a set of standard protocols that were developed for the original ARPANET

Legitimate consumer concerns regarding sharing files via the cloud include _____.

advertising that accompanies free storage services and cloud security

Which type of communication protocol converts data into standard formats that can be used by applications?

arrival

An INS would most likely be found in a(n) _________________.

autonomous vehicle

Gagan's desktop computer is hit by an electrical surge that corrupts the device's boot loader. Gagan recognizes that he might be able to correct this problem by _____.

flashing the ROM

Which of the following sensors would be most useful for helping a drone remain level as it flies?

gyro sensor

Mitzi is shopping for an external storage device that she can use to back up her laptop. One product's description is: "4 TB 5400 RPM HDD SATA 6.0 Gb/s." This means that this storage device _____.

has a speed of 5,400 revolutions per minute

Which device should you purchase if you want a portable system that combines all components in a single unit and supports both professional productivity and content consumption?

laptop

Which of the following is a small, lightweight personal computer that is designed like a clam shell?

laptop computer

Bella is an office manager for an audio equipment firm who has been tasked with selecting a new printer that will be used to print high volumes of black and white user manuals and product data sheets. Which type of printer should she choose?

laser printer

Journee notices that her smartphone's touchscreen is looking dirty and would like to safely clean it. She should _____.

leave her plastic screen protector on the touchscreen and wipe it with a disinfecting wipe

Which of the following sensors would best help an autonomous vehicle calculate the distance between itself and another vehicle?

lidar

What are Bluetooth LE, ZigBee, and Z-Wave?

low-power, short-range technologies developed for IoT networks

Microprocessors can't directly understand the programming languages typically used by software developers, so programs have to be converted into binary strings of 0s and 1s called _____.

machine language instructions

Most computers have temporary holding areas for data called __________.

memory

Which type of network topology allows for redundant paths between devices that can be used to bypass failed devices?

mesh

Modern refrigerators, washing machines, and other appliances are controlled by integrated circuits that combine sensors with processing circuitry, called _____..

microcontrollers

Which of the following is a characteristic of wired connections as compared to the alternatives?

more secure

Which feature of device touchscreens is designed to repel the oils deposited by fingers that tap and swipe the screen?

oleophobic coating

Prabhu is comparing diagrams of the infrastructures of cable, dial-up, and mobile broadband Internet services. He observes that _____.

only the mobile broadband infrastructure provides a means to hand off signals as a user changes locations

If Sandeep wants to view the directories and the files they contain on another computer in his office network from his Windows PC, he should _____.

open File Explorer, expand the Network folder, and select the name of the other computer

Scout would like to find out how many packets are being sent from and received by her Mac, so she _____.

opens Activity Monitor and clicks on the Network tab

Professor Plum draws a diagram to show the class how data from external devices travels through the circuitry of a computer. The arrows representing the data should take what path?

port to expansion bus to RAM to local bus to CPU

Which category of optical storage technology is used to mass-produce compact discs whose contents cannot be changed?

read-only

What is a significant disadvantage of storage devices that rely on magnetic storage technology?

risk for head crashes

Which type of algorithm do self-driving vehicles use to gather data, analyze it, and then carry out the required actions?

sense-plan-act

Ina has just acquired a new Mac laptop to use for work and wants to protect herself against data loss. To accomplish this, she purchases an external storage device and _____.

sets the Time Machine utility to run in the background while she uses her laptop

You should establish a regular maintenance routine for your digital devices, but be sure to avoid _____.

spraying cleaning agents directly on them

Which type of network topology connects multiple devices to a central device?

star

Suppose you wanted to run a Web server or FTP server from your home. What type of IP address would you want?

static

Pablo would like to be able to view more application windows side by side on his laptop screen. To achieve this, he can _____.

switch to a higher screen resolution, which will make the windows and the text and icons inside them smaller

Helping the computer system monitor itself in order to function efficiently is the primary purpose of _____ software.

system

Which device should you purchase if you want a small, portable system that is great for consuming content such as books, music, and videos and that do you not intend to use for creating content or multitasking?

tablet

The feature that allows you to turn your mobile phone into a hotspot so that your laptop can use it as a connection to the Internet is:

tethering

Luca has been tasked with setting up Wi-Fi for the small business where he works. The company's owner has asked him to make sure the Wi-Fi network is secure and available. Luca should set up Wi-Fi _____.

using the star topology