Intro to information tech
1 million (1,000,000)
A 1,000 x 1,000 computer monitor has 1,000 rows and 1,000 columns. How many pixels does the monitor likely have? 1) 1 million (1,000,000) 2) 2 million (2,000,000) 3) 1,000 4) 2,000
large room
A 1940's computer was about the size of a _____ . 1) football field 2) large room 3) desk 4) hand
For i in range(2, 6):
A Python program should print: 2 3 4 5 . Which for loop statement should precede the statement: print(i) 1) for i in range(2, 6): 2) for i in range(2, 7): 3) for i in range(2 plus 1, 3 times): 4) for i in range(2-5):
Non-volatile, meaning data is saved when power is off
A USB flash drive is _____. 1) volatile, meaning data is lost when power is off 2) non-volatile, meaning data is saved when power is off 3) volatile, meaning data is saved when power is off 4) non-volatile, meaning data is lost when power is off
URL
A ____ represents the location of a file on the web. 1) domain name 2) URL 3) TLD 4) second-level domain
Dual-core
A _____ chip has 2 CPUs on the chip. 1) dual-core 2) quad-core 3) penta-core 4) octo-core
Mainframe
A _____ is a large, expensive, and fast centralized computer that can be shared by hundreds of users. 1) smartphone 2) tablet 3) mainframe 4) desktop computer
Tablet
A _____ is a specialized portable computer typically about the size of a book, with the size being mostly for the screen, which is used for both output and input. 1) laptop 2) mainframe 3) smartphone 4) tablet
8
A byte is how many bits? 1) 8 2) 80 3) 800 4) Depends on the computer
Flash drives
A common type of portable storage are USB _____. 1) flash drives 2) hard drives 3) RAM disks 4) floppy disks
8
A computer executes the following instructions in order and one at a time. What is the final value of m? Instr1: m = 3 Instr2: m = m + 1 Instr3: m = m *2 1) 2 2) 3 3) 4 4) 8
First Instr1, then Instr2, and finally Instr3
A computer program consists of three instructions: Instr1: m = 1, Instr2: m = m + 5, Instr3: Print m. How are those instructions most likely executed? 1) All at once 2) First Instr1, then Instr2, and finally Instr3 3) First Instr1, then Instr3, and finally Instr3 4) Error: The instructions won't execute because m = m + 5 makes no sense.
Recommends hardware, software, or security setups
A computer systems analyst mostly: 1) recommends hardware, software, or security setups 2) writes software 3) builds hardware 4) repairs computers
Stores
A computer's drive _____ data when power is turned off. 1) stores 2) loses 3) multiplies 4) encrypts
Software that interfaces with hardware devices, such as a screen, keyboard, or printer
A device driver is _____. 1) the computer's disk, which stores a user's files and apps 2) a service that drives around a user's file system to recover lost or corrupt files 3) a virus that corrupts the computer hardware 4) software that interfaces with hardware devices, such as a screen, keyboard, or printer
Modem
A device in a user's home that combines user data with an electronic signal capable of travelling over an ISP's lines is a/an _____. 1) Ethernet 2) flash drive 3) modem 4) router
1.
A filename _____, such as .pdf, indicates what type of data a file contains. 1) addition b. augmentation c. appendix *d. extension
MS-Excel
A filename ending with .xlsx should be opened using which program? 1) Adobe Acrobat 2) MS-Word 3) Notepad 4) MS-Excel
Y is faster than X
A particular computer X has a clock frequency of 2 GHz. Another computer Y is nearly identical but has a clock frequency of 2.3 GHz. Which describes the most likely relevant difference? 1) Y is larger than X 2) Y is smaller than X 3) Y is faster than X 4) Y is slower than X
Registering a new domain name is optional
A person has developed a new web page and is using a company to maintain and serve that page. Which is most true regarding registering a new domain name specially for that web page? 1) The domain name registration must have been completed beforehand 2) The domain name registration must at least be in the process of being approved 3) The domain name must be registered within two weeks or the pages will be removed 4) Registering a new domain name is optional
Sliding a finger across the pad
A touchpad replaces a mouse, enabling a user to "move the mouse" by: 1) speaking into the pad 2) sliding a finger across the pad 3) tapping on a virtual keyboard on the pad 4) tapping out Morse code on the pad
Query
A user runs a command to find all entries in a database whose "year" field is 2016. Such a command is called a _____. 1) DBMS 2) query 3) field 4) cell
Restart the laptop
A user's laptop is running unusually slowly. After not finding any obvious reasons like a runaway application, the most reasonable next attempted fix by the user would be _____ . 1) take the laptop to a computer store for repair 2) call a computer repair company for assistance 3) restart the laptop 4) reinstall the operating system
Thousands of lines of Javascript code
A web page includes a video game of objects falling and being caught in a user-moved bucket. That game is likely written using _____. 1) 5 or 10 lines of Javascript code 2) Thousands of lines of Javascript code 3) Thousands of user-written 0's and 1's (machine language) 4) Millions of HTML tags
Compressing
A zip file can group multiple files into one file, and commonly may also include _____ of those files. 1) formatting 2) reversing 3) compressing 4) translating
Embedded
A(n) _____ computer is a computer inside another electrical device, like a TV or car. 1) mainframe 2) personal 3) mobile 4) embedded
File
A(n) _____ is a group of files or folders that help a user to organize items. 1) file 2) word processor 3) folder 4) OS
Inkjet / laser
A(n) _____ printer sprays small dots of ink onto paper, while a(n) _____ printer uses an electrostatically-charged drum to pick up powdered ink onto paper. 1) inkjet / laser 2) laser / inkjet 3) inkjet / CRT 4) laser / CRT
Font
A(n) _____ refers to particular text style features, such as the shape and spacing of text characters. Incorrect Response 1) graphic 2) font 3) icon 4) marker
320,000
According to Moore's Law, if a chip (IC) can contain 10,000 transistors in a given year, about how many transistors can a chip contain 10 years later? 1) 12,000 2) 20,000 3) 100,000 4) 320,000
Analog audio converted to digital values (numbers)
An audio recording app stores audio in a file consisting of _____. 1) Analog audio 2) Analog audio converted to digital values (numbers) 3) Formatted text 4) Rows of data consisting of various fields, each row known as a record
Automatically backup files on a hourly, daily, or weekly basis
An automated backup system is typically configured to _____. 1) remind users to manually backup files 2) automatically backup files on a hourly, daily, or weekly basis 3) corrupt the drive's data 4) empty the trash to free up space on a drive
Program
An operating system is a _____ that carries out detailed interactions with hardware on behalf of applications, such as reading data from a keyboard or displaying data on the screen. 1) program 2) USB device 3) memory 4) device driver
100
Approximately how many ASCII bit codes for characters exist? 1) 1 2) 10 3) 26 4) 100
Faster
As transistors were made smaller such that more could fit on an IC, clock frequencies became _____. 1) faster 2) slower 3) taller 4) shorter
Sampling
Audio recording apps go through a process called _____ thousands of times per second to convert audio to numbers that can be stored in an audio file. 1) sampling 2) conducting 3) surveying 4) canvassing
Running apps for long periods so the memory leaks and the memory's contents are refreshed
Being a good OS user does NOT include which of the following? 1) Running apps for long periods so the memory leaks and the memory's contents are refreshed 2) Occasionally removing unneeded files, folders, and apps 3) Backing up important files by making copies of the files to save in another location 4) Taking the time to quit unused apps
32
Binary number 100000 represents what decimal number? 1) 1 2) 2 3) 32 4) 128 million
1970's
By the _____, earlier room-size computers could fit on one coin-sized computer chip. 1) 1970's 2) 1990's 3) 1950's 4) 1980's
1990's
Computers enabled the Information Age, which began around the _____ . 1) 1810's 2) 1880's 3) 1940's 4) 1990's
0111
Decimal number 7 is represented as a 4-bit binary number is _____. 1) 1110 2) 0111 3) 1000 4) 0001
Movie files
Deleting which of the following types of files will usually free up the most space on a hard drive? 1) Movie files 2) PDF files 3) Image files 4) text files
1
Each assembly language instruction like "Input M[99]" represents about how many machine language instructions? 1) 0.1 2) 1 3) 10's 4) 100's
an inch
Font size is usually in units of pts (short for points). 12 pt font is common in documents like a letter or resume. One point is 1/72 of _____. 1) an inch 2) a page 3) a meter 4) a day
<i> Hello </i>
For HTML, which text will most likely display italicized? 1) <b> Hello </b> 2) <i> Hello </i> 3) <ital> Hello </ital> 4) <p> Hello </p>
Smartphones
For years 2010 to 2015, the computers produced and shipped in highest quantity were _____. (Note: All the choices represent a kind of computer). 1) desktop computers 2) laptop computers 3) tablets 4) smartphones
Decreased
From 2010 to 2015, the number of desktop computers shipped annually _____. 1) increased by 10x 2) increased by 5x 3) increased by 2x 4) decreased
1: Ma, 2: Smith
Given the following uncompressed text, which is a more reasonable LZ dictionary? "Mark Smith, 100 Main St., Smithville" 1) 1: Ma, 2: Smith 2) 1: Mark, 2: Smith 3) 1: M, 2: Sm 4) 1: a: 2: 100
From the default search engine (either their own, or from a paying company)
How do most browser companies typically make money from their browser? 1) By selling the browser to users 2) By selling browser upgrades to users 3) From the default search engine (either their own, or from a paying company) 4) From annual contribution drives, asking users to donate to the company
The operating system rapidly switches between the applications.
How does an operating systems handle a user wants to run multiple applications? 1) The application runs only while the user is interacting with the application's window. 2) The operating system makes the user close one application before opening another. 3) The operating system rapidly switches between the applications. 4) None of these
Drive
If a user wants to store large numbers of videos on a computer, he/she should increase the size of the: 1) memory 2) cache 3) drive 4) All of these
C1 immediately changes to 31
If cell C1 has a formula that correctly computes the sum of cells A1 and B1, and A1 contains 55 and B1 contains 11, then C1 will be 66. What happens if A1's content is then changed to 20? 1) C1 stays at 66, until a user re-enters a new formula into C1 2) C1 stays at 66, until a user closes and re-opens the spreadsheet 3) C1 immediately changes to 20 4) C1 immediately changes to 31
1.
In Mac OSX, the _____ program is used to manage folder / file / app items. 1) Explorer b. Seeker c. Desktop *d. Finder
com
In www.amazon.com, which part represents a top-level domain? 1) www 2) amazon 3) com 4) www.amazon
<script> Here </p>
Javascript is a programming language that can be embedded in HTML files and can run in a browser. Where does Javascript code typically reside within an HTML file? 1) <p> Here </p> 2) <script> Here </p> 3) rgb(here) 4) <css> here </css>
Audio Files
Lossy compression provides more compression than lossless compression, and is appropriate for _____. 1) spreadsheets 2) bank data files that exceed one megabyte 3) a word processor 4) audio files
$99
Microsoft Windows 1.0 was introduced in 1986 and cost about _____ USD. 1) $50,000 2) $99 3) $1,000,000 4) $10
.doc or .docx
Microsoft Word can be used to create and edit formatted text. That formatted text is normally saved in which kind of file to enable subsequent editing of that formatted text by Microsoft Word? 1) .doc or .docx 2) .pdf or .pdfx 3) .fmt 4) .com
Line-oriented
Modern operating systems use a _____ interface which allow pointing devices like a mouse. 1) line-oriented 2) text-based 3) windows-based *d. graphical user
differences between
Most video compression works by only storing the _____ each image and the previous image. 1) similarities between 2) sizes of 3) differences between 4) names of
Doesn't actually delete files from the drive
Moving files to the trash or recycle bin _____. 1) deletes the file from the drive 2) creates a backup of important files 3) doesn't actually delete files from the drive 4) speeds up applications that are currently running
DNS
On the Internet, a _____ server converts a name like www.ucr.edu into an IP address. 1) HTTP 2) DNS 3) FTP 4) NSF
Portable
PDF stands for _____ Document Format. 1) Processor 2) Printable 3) Portable 4) Private
Pages per minute
Printer speed is usually measured in _____. 1) pages per second 2) pages per minute 3) pages per hour 4) pages per day
Women
Programmers of the first computers were mostly _____. 1) women 2) men 3) children 4) robots
Reduce CPU usage, improve battery life, and free up memory
Quitting unused apps on a smartphone or tablet can _____. 1) reduce CPU usage 2) improve battery life 3) free up memory 4) reduce CPU usage, improve battery life, and free up memory
10,000,000
Suppose a song is 200 seconds, that a digital recording sampled the audio 50,000 times per second, and each sample is stored in 1 byte. How many bytes are needed to digitally store a song? 1) 50,000 2) 50,200 3) 250 4) 10,000,000
Is primarily used to create and edit digital audio files
The Audacity app _____. 1) comes pre-installed on nearly any computing device 2) is only available on smartphones 3) is primarily used to create and edit digital audio files 4) is primarily used for playing audio
Billions of computers around the world
The Internet is a connection of _____. 1) thousands of computers in the U.S. 2) thousands of computers around the world 3) billions of computers in the U.S. 4) billions of computers around the world
Task Manager
The _____ application can be used determine CPU / memory usage on MS-Windows. 1) Activity Monitor 2) System Monitor 3) Task Manager 4) Hardware Manager
Industrial Age
The _____ led to the steep population growth observed from around the 1800's to present. 1) Industrial Age 2) Information Age 3) Agricultural Age 4) Silicon Age
Multitasking
The ability for an operating system to run more than one application at the same time is known as _____. 1) uni-tasking 2) app-balancing 3) multitasking 4) single-tasking
Resolution
The number of distinct dots used to display an image on a monitor is known as _____. 1) device size 2) aspect ratio 3) display count 4) resolution
Clock signal
The speed of a CPU is governed by a _____ that synchronizes all of its components. 1) clock signal 2) system alarm 3) system timer 4) flash signal
ASCII
The standard character code that represents English characters using 7 or 8 bits is called _____. 1) ANSI 2) ASCII 3) Unicode 4) ICANN
Unicode
The standard character code that represents characters from multiple languages using 16 bits is called _____. 1) ASCII 2) Unicode 3) ANSI 4) ICANN
site:
Using the _____ specifier in a Google search tells it to restrict searching to a specific domain, such as ucr.edu. 1) domain: 2) url: 3) site: 4) type:
25
Video consists of a series of still pictures (frames) that should be shown at a rate of at least _____ frames per second so that humans don't notice the individual pictures and instead see smooth video. 1) 2.5 2) 25 3) 250 4) 2,500
Receives packets from computers/routers, sending those packets to other computers/routers.
What does an Internet router do? 1) Receives packets from computers/routers, sending those packets to other computers/routers. 2) Serves as the main data store for a laptop computer. 3) Translates high level programs to machine instructions that can then be sent via the Internet. 4) Converts English information to a destination country's main language, like French or Italian.
A switch
What electronic device leads to the 0's and 1's (bits) in a computer? 1) An atom 2) A molecule 3) A switch 4) A generator
HTML files
What is the main file type used by web browsers? 1) FTP files 2) IP files 3) PDF files 4) HTML files
Bit
What is the smallest unit of measurement in a computer? 1) Byte 2) Mole 3) Bit 4) Nibble
Body { background-color : yellow; }
Which CSS code colors a web page's background yellow? 1) h1 { background-color : yellow; } 2) p { background-color : yellow; } 3) body { background-color : yellow; } 4) color page background yellow
rgb(0, 80, 250)
Which CSS color is most like a sky-colored blue? 1) rgb(0, 80, 250) 2) rgb(250, 80, 0) 3) rgb(80, 250, 0) 4) rgb(50, 50, 50)
A domain name registrar
Which helps users register a domain name? 1) An ISP 2) The Internet Corporation 3) A domain name registrar 4) The U.S. Federal Communications Commission
Which is NOT a web browser? 1) Internet Explorer 2) Google 3) Chrome 4) Safari
1000001
Which is mostly likely to be the ASCII bit code for the character 'A'? 1) 0 2) 1 3) 1000001 4) 10011001100111011000100110011111
802.11ac
Which is the most recent version of the wireless computer networking standard? 1) 802.11b 2) 802.11n 3) 802.11g 4) 802.11ac
A cooking recipe
Which most closely resembles a computer program? 1) A cooking recipe 2) A dictionary 3) A phone number 4) A growing tree
=SUM(A1:A4)
Which most properly uses the SUM function to sum the values in cells A1 through A4? 1) =SUM(A1:A4) 2) =SUM(A1, A2, A3, A4) 3) =SUM(A1+A2+A3+A4) 4) =SUM(A1) + SUM(A2) + SUM(A3) + SUM(A4)
Image
Which of the following is NOT a common kind of text formatting? 1) bold 2) image 3) italic 4) underline
file1.pdf
Which of the following is most likely a file that stores a formatted text and graphics, such as a resume, viewable on multiple platforms? 1) file1.pdf 2) file1.exe 3) file1.mp4 4) file1.jpg
AT&T and Time Warner Cable
Which organizations is/are likely to be most closely associated with being an Internet Service Provider in the U.S.? 1) Cisco 2) Google and Microsoft 3) AT&T and Time Warner Cable 4) The U.S. Post Office
Fox -news
Which search excludes pages that have the word "news"? 1) Fox +news 2) Fox -news 3) Fox "news" 4) Fox but not news
Graphical
Windows is a _____ OS developed by Microsoft in the mid-to-late 1980s. 1) text-based 2) touch-based 3) command line 4) graphical
Digital Rights
_____ Management refers to additional features added to media files and players to restrict how it can be played, in order to prevent unauthorized copying. 1) Media Rules 2) Internet Copyright 3) Digital Rights 4) File Patent
Lossy
_____ compression means that some data can be "thrown away" during the compression process. 1) Sampling 2) Lossless 3) Secure 4) Lossy
Unix
_____ is a text-based operating system developed in the late 1960's. 1) Unix 2) iOS 3) Windows 4) Android
Ink jet
_____ printers use liquid ink and are very inexpensive, making them the most popular printers for home users. 1) Dot-matrix 2) Ink jet 3) Laser 4) Thermal
Steve Jobs
_____ was one of the founders of Apple in 1976, but was pushed out of the company in the mid 1980s. He later returned in 1996 and helped to rebuild a nearly bankrupt Apple. 1) Paul Allen 2) Bill Gates 3) Stephen Wozniak 4) Steve Jobs
