It displays nothing if x is negative and displays true otherwise.

It displays nothing if x is negative and displays false otherwise.

It displays true if x is negative and displays nothing otherwise.

It displays true if x is negative and displays false otherwise.

Program documentation should not be changed after it is first written.

Program documentation is only needed for programs in development; it is not needed after a program is completed.

Program documentation is useful when programmers collaborate but not when a programmer works individually on a project.

Program documentation is useful during initial program development and also when modifications are made to existing programs.

An overflow error occurred.

A round-off error occurred.

The result was affected by lossy data compression.

The result was approximated by a floating-point representation.

3

6

9

15

A lossless compression algorithm can guarantee that compressed information is kept secure, while a lossy compression cannot.

A lossless compression algorithm can guarantee reconstruction of original data, while a lossy compression algorithm cannot.

A lossless compression algorithm typically allows for faster transmission speeds than does a lossy compression algorithm.

A lossless compression algorithm typically provides a greater reduction in the number of bits stored or transmitted than does a lossy compression algorithm.

Copyright information for the image

The date and time the image was created

The dimensions (number of rows and columns of pixels) of the image

A duplicate copy of the data

The average amount spent per day during the 7-day period can be determined by sorting the data by the total transaction amount, then adding the 7 greatest amounts, and then dividing the sum by 7.

The method of payment that was used in the greatest number of transactions during the 7-day period can be determined by sorting the data by the method of payment, then adding the number of items purchased for each type of payment method, and then finding the maximum sum.

The most expensive item purchased on a given date can be determined by searching the data for all items purchased on the given date and then sorting the matching items by item price.

The total number of items purchased on a given date can be determined by searching the data for all transactions that occurred on the given date and then adding the number of items purchased for each matching transaction.

10

20

30

40

Lists often allow their size to be easily updated to hold as many data values as needed.

Lists convert all elements to strings so that they can be inspected character-by-character.

Lists prevent duplicate data values from appearing in the list.

Lists are used to store all input data so that there is a running record of all user input.

(num MOD 1) = 0

(num MOD 1) = 1

(num MOD 2) = 0

(num MOD 2) = 1

true true true

false false false

true false true

false false true

Iteration

Searching

Selection

Sequencing

A) ONE

B) TWO

C) THREE

D) FOUR

A) 6

B) 10

C) 15

D) 21

2 * 3 * 3 * 3

2 * 4 * 4 * 4

2 * 3 * 3 * 3 * 3

2 * 4 * 4 * 4 * 4

1 3 5

5 3 1

100 300 500

500 300 100

In all cases, a binary search of a sorted list requires fewer comparisons than a linear search.

Generally, the advantage of using a binary search over a linear search increases as the size of the list increases.

A linear search will generally run faster than a binary search because a linear search requires fewer lines of code to implement.

Using a linear search is preferable to using a binary search if there is a chance that the target may not be found in the list.

10 10

10 20

10 10 20

10 20 10

Making the code more readable

Making the code run faster

Providing more opportunities for code reuse

Reducing the amount of duplicated code

A procedure that returns the quotient when dividing one value by another

A procedure that returns the sum when adding one value to another

A procedure that returns the sum of the values in the file

A procedure that returns true if the file contains any duplicate values and returns false otherwise

1 1 1 1

1 2 3 2

1 2 3 4

1 3 2 4

Computer simulations can only be built after the real-world object or system has been created.

Computer simulations only run on very powerful computers that are not available to the general public.

Computer simulations usually make some simplifying assumptions about the real-world object or system being modeled.

It is difficult to change input parameters or conditions when using computer simulations.

When the problem can be solved in a reasonable time and an approximate solution is acceptable

When the problem can be solved in a reasonable time and an exact solution is needed

When the problem cannot be solved in a reasonable time and an approximate solution is acceptable

When the problem cannot be solved in a reasonable time and an exact solution is needed

Any problem can be solved algorithmically, though some algorithmic solutions may require humans to validate the results.

Any problem can be solved algorithmically, though some algorithmic solutions must be executed on multiple devices in parallel.

Any problem can be solved algorithmically, though some algorithmic solutions require a very large amount of data storage to execute.

There exist some problems that cannot be solved algorithmically using any computer.

Both the Internet and the World Wide Web refer to the same interconnected network of devices.

The Internet is an interconnected network of data servers, and the World Wide Web is a network of user devices that communicates with the data servers.

The Internet is a local network of interconnected devices, and the World Wide Web is a global network that connects the local networks with each other.

The Internet is a network of interconnected networks, and the World Wide Web is a system of linked pages, programs, and files that is accessed via the Internet.

If one component of the system fails, users of the system can often still access it.

If one component of the system is hacked, no information will be stolen.

If the system becomes too expensive, making it fault-tolerant will save money.

If the system cannot operate efficiently, making it fault-tolerant will speed up its operation.

Any problem that can be solved sequentially can be solved using a parallel solution in approximately half the time.

Any solution can be broken down into smaller and smaller parallel portions, making the improvement in efficiency theoretically limitless as long as there are enough processors available.

The efficiency of parallel computing solutions is rarely improved over the efficiency of sequential computing solutions.

The efficiency of a solution that can be broken down into parallel portions is still limited by a sequential portion.

To analyze large data sets, recognize patterns, and make predictions based on data

To automatically translate algorithms from natural language to machine language

To determine whether an algorithm can be constructed to answer “yes” or “no” for all possible inputs

To find approximate solutions to problems that would otherwise require an unreasonably long amount of time to solve

A school allows students to bring a graphing calculator from home to complete in-class mathematics assignments.

A school allows students to bring a tablet computer to class every day to participate in graded quizzes.

A school provides a laptop or tablet computer to all students enrolled at the school.

A school recommends that all students purchase a computer with as much processing speed as possible so that projects run faster.

Making recommendations based on listening data gathered from a random sample of users of the application

Making recommendations based on the most frequently played songs on a local radio station

Making recommendations based on the music tastes of the developers of the application

Making recommendations based on a survey that is sent out to the 1,000 most active users of the application

Users can save an address to be used at a later time.

Users can turn on alerts to be notified about traffic accidents.

Users can submit updates on local traffic conditions in real time.

Users can use the application to avoid heavily congested areas.

Open-source software is generally free or lower in cost than commercially available software.

The availability of source code makes it possible to customize open-source software to a user’s individual needs.

The original developer of open-source software provides free or low-cost support for users installing and running the software.

Unlike commercial software, which can become obsolete when the company that created it goes out of business, open-source software can be updated without the involvement of the original programmers.

The sender’s public key

The sender’s private key

The recipient’s public key

The recipient’s private key