What is the most likely privacy concern of the app?

Location data would be available and potentially used by the company

You need to write a program name calculate to compute the average temp for an area. What would be the best variable name

avgTempature - Variable names should be descriptive to help others undrstnd

Why are simulations useful abstractions?

They can test hypotheses without real-world constraints

How does the internet work with different equipment in use?

Vendors allow the protocols established across any equipment

What does it mean when we say the Internet is redundant?

If a path is down, packets can be routed a different way

How are procedures abstract in computer science?

They can be used without understanding or seeing the code used

Why should procedures be used?

They make writing and maintaing programs easier through reuse of code

What outpit does the app produce?

Instructions to start the vehicle and drive to the coordinates provided

What is the definition of bandwidth?

The amount of data that can be transmitted in a fixed amount of time

What is the most common way computer viruses are spread?

People clicking on an infected file

Why is it important to write programs that are readable?

They are easier to modify and debug

How do selection statements determine which section of code to executre?

Through conditions that evaluate true or false

What data is most likely to be needed for the app to work?

Accurate longitude and latitude coordinates

What an help with identifying and correcting program errors?

Collaboration among team members

Algorithms can be written with a combination of what three statements?

Sequence / Selection / Iteration

Is this a computing innovation? Why or why not?

App sends GPS coordinates to the vehicle, along with location so yes

While algorithms can be analyzed mathmatically, what information does the testing process provide?

How often program statements execute

How can financial transactions safely occur on the internet?

Through certificates issued by Certificate Authorities (CA)

How do APIs simplify writing programs?

Connecting prewritten and tested software to a new program

How does the documentation (dcmnt) help with maintaining programs

If code is modified dcmnt can guide programmer in testing it is correct

How is collaboration useful in defining requirements?

Different skills & experiences provide better analysis and identification

How is the Internet scalable?

Ability for additional networks & routers to be added w/o impacting service

Why should we use an iterative development approach

Each iteration improves or adds code to build a successful program

How can you defend a phishing attack?

Open the website in question directly rather than clicking on the link

Why is there a need to find different algorithms for problems that already have a solution?

Different algorithms could be more efficient

What is an issue that organizations must handle when dealing with datasets?

Ensuring that people's private data is not exposed

What causes an algorithm to be considered one that runs in an unreasonable amount of time?

The solution is too inefficient for large data sets

How does creating program components help with program development?

Incrementally adding right components to working code creates right program

What is an example of lower-level abstractions combining to make higher-level abstractions?

Dividing functionality into seperate modules that are all part of a program

When does an overflow error occur?

When an integer needs more bits than are available to represent it

How is analog data converted to digital data?

Samples of the analog data re taken and converted to bits

What do parameters used in a procedure provide?

They allow software reuse for different values

Parallel computing consists of what two parts?

A sequential selection and a parallel selection

When would lossless data compression be preferred over a lossy one?

When you need to restore the original file

How does the Internet prcess transactions securely?

Public encryption model is easy to encrypy and hard to decrypt

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Questions 57

Answers

1
What is the most likely privacy concern of the app?
People could enter the waiting vehicle before the driver gets to it
Location data would be available and potentially used by the company
Two people using the app at the same location can cause mixed signals
Unauthorized individuals could use the app to summon someone elses vehicle
2
You need to write a program name calculate to compute the average temp for an area. What would be the best variable name
1Temp - Variable names should begin with a number starting with 1 then 2
calculateAvgTemp - variable names should start w program name then var name
t - Variable names should be short so there is less opportunity for a typo
avgTempature - Variable names should be descriptive to help others undrstnd
3
Why are simulations useful abstractions?
They can preceisly test real-world events to identify the ultimate outcome
They can change multiple options at the same time, leading to new insights
They can test hypotheses without real-world constraints
They can confirm the cause of events
4
What is the binary equivalent of the decimal number 158?
10011110
10011000
10011111
10011101
5
How does the internet work with different equipment in use?
The server farms handle the data once data reach the Regional ISP
Routers adjust different eqpment manufactures by sending data on same brand
Vendors allow the protocols established across any equipment
Specific companies are approved to make equipment for the internet
6
An error that produces incorrect results is what type of error?
Logic Error
Runtime Error
Syntax Error
Overflow Error
7
What is the name of the search method that provides high or lower feedback with iteration of the search
Binary search
Linear search
Merge search
Bucket search
8
On the AP exam, compound expressions can be created using which of the following operators?
if / only if
not / nor
and / or
is/is not
9
What does it mean when we say the Internet is redundant?
Parts of it are unnecessary
If there is an error, a backup system is brought online to be used
If a path is down, packets can be routed a different way
It has a delay between the request and the response to the request
10
How are procedures abstract in computer science?
They represent the lowest level of code for the computer to run
Use actual alues to represent concepts
Blocks of code that do something specific
They can be used without understanding or seeing the code used
11
How can programmers avoid duplicating code?
Through the use of selection statements
Through sequential statemnets to process all data once
Through the use of iteration
Through the use of efficient alhorthms
12
Why should procedures be used?
They ease the workload on the processor
They faciliate the storage of data
They control the flow of input and output data
They make writing and maintaing programs easier through reuse of code
13
What outpit does the app produce?
The button event to be pressed
Instructions to start the vehicle and drive to the coordinates provided
Directions to get from the parking spot to the current location
A signal to the GPS satellites to send current location coordinates
14
What is the definition of bandwidth?
The speed at which data can be sent through the Internet
The frequency at which data can be transmitted across the internet
Delay between the request and the receipt of information on the Internet
The amount of data that can be transmitted in a fixed amount of time
15
What is the most common way computer viruses are spread?
From phishing attacks
Through rogue access points
From random bonet attacks
People clicking on an infected file
16
What could a binary number represent?
A text
A color
All of the above
Number in decimal
17
Why is it important to write programs that are readable?
They produce accurate results
They are easier to modify and debug
They effectively process all cases of input
They run more efficiently
18
Which type of loop is most effective to iterate over a list?
Repeat Until
Repeat n Times
For Each
Traversal Loop
19
What happens when you "clean" data?
Corrupt data records are corrected or removed
All of the above
Duplicate records are removed
Incomplete data records are completed or removed
20
Answer the question in the picture
students <-- lockerNum
students[index] <-- lockerNum
lockerNum<-- name
lockerNum[index] <--name
21
How do selection statements determine which section of code to executre?
Through the use of Turing algorithm for analysis
Through conditions that evaluate true or false
Through random number generators
Through variables initialized to executre these statements.
22
What data is most likely to be needed for the app to work?
Fingerprint reader for valid entry to the vehicle
Accurate longitude and latitude coordinates
Cameras for the vehicle to safely navigate to the signaled location
Sensor to recognize the signal summoning the behicle
23
What an help with identifying and correcting program errors?
Clustering requirements and tests
Collaboration among team members
Revisiting requirements
Consolidate testing
24
Algorithms can be written with a combination of what three statements?
Selection / Sorting / Searching
Connection / Collection / Recursive
Series / Procedural / Functional
Sequence / Selection / Iteration
25
You are helping write code to register students for classes. What can replace <missing code> to make the program work?
desks < 0
desks = 25
LENGTH (classRoster) = 0
desks = 0
26
Is this a computing innovation? Why or why not?
App sends GPS coordinates to the vehicle, along with location so yes
Programming is controlled by the self-driving car's manufacturer, so no
Programming is completed by the GPS satellite not this innovation, so no
A computer program is not needed, so teh app is not a computing innovation
27
While algorithms can be analyzed mathmatically, what information does the testing process provide?
How often program statements execute
The validity of the program
The clarity of the program
The max size dataset the algorithm can handle
28
How can financial transactions safely occur on the internet?
Through certificates issued by Certificate Authorities (CA)
Through the use of double authentication methods
Through the use of frequency analysis
Through the use of symmetric keys
29
How do APIs simplify writing programs?
Importing the newly written software to the API for others to use
By providing documentation on how to code the needed functionality
Providing step-by-step instructions on how to use the programming language
Connecting prewritten and tested software to a new program
30
How does the documentation (dcmnt) help with maintaining programs
Documents how to run the program in multiple languages
If code is modified dcmnt can guide programmer in testing it is correct
It is useful for training new employees on how to learn the language
Journals the history of program changes showing how it worked before change
31
How is collaboration useful in defining requirements?
The multiple viewpoints can provide several outcomes for the program
Different skills & experiences provide better analysis and identification
32
How is the Internet scalable?
Ability for additional networks & routers to be added w/o impacting service
Through the ability to add additional authentication for users
Through the ability to add additional bandwith to requests
Through the ability to add longer public keys to keep data secure
33
Why should we use an iterative development approach
To minimize the amount of time needed for testing
To be able to begin coding while remaining requirements are being defined
Meet the legal requirements for code to handle sensitive data
Each iteration improves or adds code to build a successful program
34
What is an example of "metadata"?
A line of code
A header in a document
Test data
Author of a document
35
How can you defend a phishing attack?
Install antivirus software and keep it updated
Open the website in question directly rather than clicking on the link
Never open unexpected e-mail attachments
Block incoming web traffic until the attack is over
36
What is a problem that no algorithm exists to solve all instances called
Exponential problem
Infinite problem
Indeterminable problem
Undecidable problem
37
What is the process where algorithms are used with historical data to attempt to predict human needs or request to info
Machine learning
Social analysis
Trend prediction
Data excavation
38
Why is there a need to find different algorithms for problems that already have a solution?
Different algorithms could provide intractability
Different algorithms could use heuristics rather than precise values
Different algorithms could use frequency analysis
Different algorithms could be more efficient
39
What is an issue that organizations must handle when dealing with datasets?
Ensuring that the system can scale down after the data are sent to cloud
Ensuring that people's private data is not exposed
Ensuring that enough staff are on hand to process the data
Ensuring that the bandwith can handle the procssing of data
40
What causes an algorithm to be considered one that runs in an unreasonable amount of time?
Multiple algorithms exist with different levels of efficient
It is solved most efficiently with large datasets
The solution is too inefficient for large data sets
There is not an algorithm that can solve it
41
How does creating program components help with program development?
Multiple people can write the components and still ensure compatibility
Components can be combined at once to create the needed program functions
Individual components can be added with-out additional testing
Incrementally adding right components to working code creates right program
42
What is an example of lower-level abstractions combining to make higher-level abstractions?
Creating help documentation so the user will know how to use the program
Writing psuedocode to identify what the prgram needs to do
Using a flowchart to identify program decisions
Dividing functionality into seperate modules that are all part of a program
43
When does an overflow error occur?
When a program exceed the limit of lines of code for a programming language
When an integer needs more bits than are available to represent it
When a "divide by zero" condition occurs
When the lines of output exceed the programming language limit
44
Tracing what your code is doing is an example of which of the following terms?
Scaffolding
Debugging
Discovery
Traversing
45
How is analog data converted to digital data?
Analog data values are converted precisely to digital data
Samples of the analog data re taken and converted to bits
Analog curve is extrapolated and converted into x,y coordinates
Samples of the analog data are approximated to mimic the smooth curve
46
What do parameters used in a procedure provide?
They allow software reuse for different values
They provide the connection of an APU to the procedure
They provide a way to call a procedure from within another procedure
They return calculated values from the procedure to the calling program
47
Parallel computing consists of what two parts?
A parallel selection and a distributed section
A sequential selection and a parallel selection
A sequential section and an iterative section
A sequential selection and a distributed section
48
When would lossless data compression be preferred over a lossy one?
When you have limited space available on your computer
When the level of compression is more important than restoring the original
When you need to display the file on mobile devices and websites
When you need to restore the original file
49
What do logical conditions always evaluate to?
Real number
Boolean value
Value store in a constant
A "string" text field
50
What is one way that data can be intercepted over a public network?
Rogue access points
A successful phishing attempt
Keylogging software
Router
51
How does the Internet prcess transactions securely?
Symmetric keys are used to encrypt and decrypt messages for speed
Public encryption model is easy to encrypy and hard to decrypt
Frequency analysis is used to disguise the use of common letters
Multiple alphabets are used to encrypt and decrypt messages
52
What are statements, procedures, and libraries examples of?
Abstractions used in writing software cause used without knowing details
Low-level code that the computer uses to run the code
Algorithms that provide suggestions on how to approach writing code
Pseudocode that helps design a solution for coding challenges
53
Which of the following is the most likely potential harm of the app?
Traffic congestion for drivers & pedestrians @ places not designed for wait
Incerased air pollution if people leave their self-driving cars idling
Illegal parking as people leave their cars running to run a quick errand
Accidents when people driving vehicles are moving around waiting vehicles
54
Which of the following is a personally identifiable information that could be stored as public record
Language preference
Internet search history
Time zone
Zip code
55
Different levels of access to technological devices and the Internet due to economic or geographic reason is referred as
Digital divide
Demographic division
Technology rift
Binary split
56
Answer the question in the picture
1,7
0,6
0,5
1,6
57
What is one way to help ensure correctness of algorithms?
Through the use of hueristic algorithms
Documenting the functionality of the algorithm
Testing with small sets of expected data
Reuse of exisitng correct alogrithms to build new ones

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