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120 terms

COSA 50

STUDY
PLAY
In a graphical user interface, which of the following is a small symbol on the screen whose location and shape changes as a user moves a pointing device?
pointer
Many scanners include a certain kind of software, which can read and convert text documents into electronic files. What is that kind of software?
OCR
Retail and grocery stores use which kind of bar code?
UPC (Universal Product Code) Correct
Some input devices include a kind of output that provides the user with a physical response from the device. What kind of output is this?
tactile
To display the highest quality images, an LCD monitor should plug in which of the following?
Any of the above Correct
What is pixel pitch sometimes called?
dot pitch Correct
What kind of mouse is a battery-powered mouse that sometimes uses Bluetooth technology to pair with the device?
wireless
Which kind of monitor sandwiches a layer of gas between two glass plates?
plasma
Which kind of printer forms characters and graphics on a piece of paper without actually striking the paper?
nonimpact
Which of the following are NOT commonly used nonimpact printers?
line printers and dot-matrix printers
Which of the following devices read text printed with magnetized ink?
MICR
Which of the following is a small, flat, rectangular pointing device that is sensitive to pressure and motion?
touchpad
Which of the following is a technology that reads hand-drawn marks such as small circles or rectangles?
OMR
Which of the following is a touch-sensitive display device that users interact with by touching the screen with a finger or a stylus?
touch screen
Which of the following is a type of DV camera that enables a home or small business user to capture video and still images, send email messages with video attachments, add live images to instant messages, broadcast live images over the Internet, and make video calls?
webcam
Which of the following is an identification code that consists of a set of vertical lines and spaces of different widths?
bar code
Which of the following kinds of keyboard has a design that reduces the chance of wrist and hand injuries?
ergonomic
Which of the following kinds of printers offers an alternative for blind users?
Braille
Which of the following requires any company with 15 or more employees to make reasonable attempts to accommodate the needs of physically challenged workers?
ADA
Which of the following use a row of charged wires to draw an electrostatic pattern on specially coated paper and then fuse toner to the pattern?
Plotters
A DVD-ROM uses all of the following to achieve a higher storage capacity than a CD-ROM EXCEPT ____.
making the disc single-session
Memory (chips) accesses items in which of the following units of time?
nanoseconds
Some computers improve hard disk access time by using which of the following, which consists of memory chips that store frequently accessed items?
disk cache
Storage devices access items in which of the following units of time?
milliseconds
What kind of disc is a type of storage media that consists of a flat, round, portable disc made of metal, plastic, and lacquer that is written to and read by a laser?
optical
What kind of storage is an Internet service that provides storage to computer or mobile users?
cloud
Which of the following devices is the computer hardware that records and/or retrieves items to and from a flash drive or external hard drive, for example?
storage
Which of the following does NOT use direct access?
tape
Which of the following is a high-capacity optical disc on which users can read but not write or erase?
DVD-ROM
Which of the following is a multisession optical disc on which users can write, but not erase, their own items such as text, graphics, and audio?
CD-R
Which of the following is made of aluminum, glass, or ceramic and is coated with an alloy material that allows items to be recorded magnetically on its surface?
platter
Which of the following is NOT a cloud storage provider that places a folder on your computer with contents you can synchronize across multiple devices?
CloudDrive
Which of the following is NOT a common type of memory card?
MX6
Which of the following is the largest from among the following?
YB
Which of the following is the mechanism that reads and writes items in the drive as it barely touches the disk's recording surface?
read/write head
Which of the following is true of tape?

a. It is no longer used as a primary method of storage but is used most often for long-term storage and backup. Correct
b. It is no longer used as a primary method of storage or for long-term storage and backup.
c. It is used as a primary method of storage and for long-term storage and backup.
d. It is no longer used for long-term storage and backup but is used most often as a primary method of storage.
It is no longer used as a primary method of storage but is used most often for long-term storage and backup. Correct
Which of the following kinds of cards stores data on an integrated circuit embedded in the card?
smart
Which of the following kinds of devices duplicates data, instructions, and information to improve data reliability?
RAID
Which of the following kinds of RFID tags contains a battery that runs the chip's circuitry and broadcasts a signal to the RFID reader?
active
Which of the following provides a myriad of financial reporting requirements and guidelines for public companies?
Sarbanes-Oxley Ac
A checkout clerk with this level of privileges to the email addresses in a discount warehouse database could view the addresses but not change them. What is this level of privileges called?
read-only
A user of a database such as that pictured in the accompanying figure refers to a file as what?
table
A user of a database such as that pictured in the accompanying figure refers to a record as what?
row
In a database such as that pictured in the accompanying figure, users can set up a relationship between tables at any time, but the tables must have which of the following in common?
column
In a database such as that pictured in the accompanying figure, which of the following is a connection within the data?
relationship
In the database pictured in the accompanying figure, which of the following is a combination of one or more related characters or bytes and is the smallest unit of data a user accesses?
field
In what kind of recovery does the DBMS use the log to reenter changes made to a database since the last save or backup?
forward
Object-oriented and object-relational databases often use a query language to manipulate and retrieve data. What is the name of this query language?
OQL
What is the process of comparing data with a set of rules or values to find out if the data is correct?
validation
Which of the following consists of rules and standards that define how a database organizes data?
data model
Which of the following identifies the quality of data in a database?
data integrity
Which of the following is a collection of data organized in a manner that allows access, retrieval, and use of that data?
database
Which of the following is a database that stores data in tables that consist of rows and columns?
relational
Which of the following is a huge database that stores and manages the data required to analyze historical and current transactions?
data warehouse
Which of the following is a number(s) or character(s) that is appended to or inserted into a primary key field?
check digit
Which of the following is a process designed to ensure the data within the relations (tables) contains the least amount of duplication?
normalization
Which of the following is a request for specific data from a database?
query
Which of the following is true in a relational database?
Each row has a primary key and each column has a unique name.
Which of the following privileges for data involve establishing who can enter new data, change existing data, delete unwanted data, and view data?
access
Which of the following stores data in objects?
OODB
In this kind of memory, the operating system allocates a portion of a storage medium, usually the hard disk or a USB flash drive, to function as additional RAM. What kind of memory is this?
virtual
Linux is a kind of software whose code is provided for use, modification, and redistribution. What kind of software is this?
open source
Networks, servers, mainframes, and supercomputers allow hundreds to thousands of users to connect at the same time, and thus their operating systems are referred to as which of the following?
multiuser
Two types of system software are which of the following?
operating systems and tools that enable you to perform maintenance tasks
What is the term for the process of swapping items between memory and storage?
paging
Where may an operating system reside in a mobile device?
firmware
Which file and disk management tool attempts to locate a file on your computer or mobile device based on specified criteria?
Search
Which of the following allows a computer or mobile device's processor to continue interpreting and executing instructions while a printer prints?
spooling
Which of the following consists of one or more chips on the motherboard that hold items such as data and instructions while the processor interprets and executes them?
RAM
Which of the following includes and profits from installing trial versions of antivirus software on their computers?
OEMs
Which of the following is a private combination of characters associated with a user name that allows access to certain computer resources?
password
Which of the following is a set of programs containing instructions that coordinate all the activities among computer hardware resources?
operating system
Which of the following is NOT a desktop operating system?
Google Android
Which of the following is NOT a wireless Internet connection?
DSL
Which of the following is the core of an operating system that maintains the computer's clock, starts applications, and assigns the computer's resources, such as devices, programs, apps, data, and information?
kernel
Which of the following is the process of starting or restarting a computer or mobile device?
booting
Which of the following kinds of software consists of the programs that control or maintain the operations of a computer and its devices?
system
Which of the following means the operating system automatically configures new devices as users install them?
Plug and Play
Who can establish standard user accounts that allow alterations to security settings?
administrators
With which of the following do users interact with menus and visual images such as icons, buttons, and other objects to issue commands?
graphical user interface (GUI)
As illustrated in the accompanying figure, on what kind of network must all of the computers and devices (nodes) on the network connect to a central device?
star network
For best performance of a communications channel, which of the following should be true?
bandwidth should be high and latency low
Microwave transmission involves sending signals from one microwave station to another. What is this often called?
fixed wireless
On a network such as the one illustrated in the accompanying figure, if one node fails, as long as that node is not providing services to other nodes on the network, what happens?
only that node is affected
On what kind of network, such as that illustrated in the accompanying figure, do one or more computers act as a server and the other computers on the network request services from the server?
client/server
The amount of data, instructions, and information that can travel over a communications channel sometimes is called which of the following?
bandwidth
Which of the following defines how a network uses close-range radio signals to communicate between two devices or objects equipped with this technology?
NFC
Which of the following enables a computer or device that does not have built-in networking capability to access a network?
NIC
Which of the following has the fastest transfer rate?
FTTP
Which of the following is a central communications device that allows computers and devices to transfer data wirelessly among themselves or to transfer data wirelessly to a wired network?
wireless access point
Which of the following is a communications device that connects multiple computers together and transmits data to its correct destination on a network?
router
Which of the following is a network standard that specifies no central computer or device on the network should control when data can be transmitted?
Ethernet
Which of the following is a simple, inexpensive network that typically connects fewer than 10 computers?
peer-to-peer network
Which of the following is the greatest problem with regard to a bus network?
The bus itself might become inoperabl
Which of the following is the maximum transfer transmission rate for communications satellites?
2.56 Tbps Correct
Which of the following is true of broadcast radio with regard to physical transmission media?
It is slower and more susceptible to noise.
Which of the following terms identifies any network based on the 802.11 family of standards?
Wi-Fi
Which of the following terms is an electrical disturbance that can degrade communications?
noise
Which of the following terms is the time it takes a signal to travel from one location to another on a network?
latency
What is the maximum transfer transmission rate for Bluetooth?
24 Mbps
As shown in the accompanying figure, a Gantt chart, developed by Henry Gantt, is which of the following?
bar chart that uses horizontal bars to show project phases or activitie
During which of the following phases does a systems analyst carefully design every menu, screen, and report specified in the requirement?
detailed design
During which of the following phases does a systems analyst identify the required programs and the relationship among each program, as well as input, output, and database specifications?
program design
For each input and output, a systems analyst typically develops a sample of the input or output that contains actual data. What is this sample called?
mock-up
In sequence, traditional system development contains five phases. What are they?
planning, analysis, design, implementation, support and security
The disadvantage of this kind of conversion is that it is extremely risky and can disrupt operations seriously if the new system does not work correctly the first time. Which kind of conversion is this?
direct conversion
The purpose of this phase is to construct, or build, a new or modified system and then deliver it to the users. What is this phase?
implementation phase
To convert an assembly language source program as shown in the accompanying figure into machine language, programmers use which of the following?
assembler
Which of the following consists of running the old system alongside the new system for a specified time?
parallel conversion
Which of the following is a less formal method that uses a standard form to request information about a product or service?
request for information (RFI) Correct
Which of the following is a measure of how suitable the development of a system will be to an organization?
Feasibility
Which of the following is a set of technologies from Microsoft that allows almost any type of program to run on the Internet or an internal business network?
.NET Correct
Which of the following is an interpreted language that allows a programmer to add dynamic content and interactive elements to a webpage?
JavaScript
Which of the following is any tangible item such as a chart, diagram, report, or program file?
deliverable
Which of the following is true of a unit test?
It verifies that each individual program or object works by itself
Which of the following is true of an integration test?
verifies that an application works with other applications
Which of the following roles is responsible for designing and developing an information system?
developer
Wireless devices use a subset of XML that allows webpage developers to design pages specifically for microbrowsers. What is the name of this subset?
WML
With this kind of conversion, each location converts to a new system at a separate time. What is this kind of conversion?
phased conversion
With this kind of conversion, only one location in the company uses a new system - so it can be tested. What is this kind of conversion?
pilot conversion