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Computer Science Principles
Computer Science Principles
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1
The purpose of ASCII is
encrypt private messages
define standard character-sets in electronic equipment
convert hexadecimal numbers
convert binary numbers
2
A named sequence of statements that returns a result
function
procedure
turtle
definition
3
Snap and Scratch drop and drag block programming eliminates the risk of what type of errors
syntax
run-time
logic
compile
4
The repetition of a process within a computer program.
Increment
Initializer
Boolean condition
Iteration
5
Which of the following is not a good example of abstraction?
A Pablo Picasso painting
Dropping a pin on Google Maps
electronic device requires knowledge of internal details
Pressing the brake pedal of your car
6
Which of the following statements is false?
nONE OF THESE
Each color has a red part, a green part, and blue part
Each pixel is stored as a number between 0 and 255
Pictures are made up of pixels, laid out on an (x,y) grid
7
The specific rules defined by the grammar of a programming language
Semantics
TCP
Protocol
Syntax
8
A_____can be used to detect the authenticity of the sender of an electronic document.
Encryption
TCP
Public Key
Digital Certificate
9
A binary question is defined as:
information sent in pairs
two questions that have the same answer
a question that can be answer in one of two possible ways
a two part question
10
Which of the following is NOT a Big Idea of CS Principles?
Abstraction
Data and Information
Global impact
Social Networking
11
Which of the following statements is false
An algorithm can be expressed in English
An algorithm always produces one number as an output
. An algorithm should express repetitions & conditionals
An algorithm must have a logic flow
12
A list can contain the following types of values:
all of these
characters
Boolean values
numbers
13
Who is know as the father of Computer Science?
Gordon Moore
Alan Turing
Charles Babbage
Steve Jobs
14
What is the result of executing the following code?
The value of a number will be printed exactly 1 time
The program will loop indefinitely
The while loop will never get executed
The value of number will be printed exactly 5 times
15
Data, letters, digits,& other characters inside a pair of single or double quotes
turtle
image
string
integer
16
Which method can be used for inserting CSS styling in HTML Web page
Inline
External
Internal
All of these
17
Which of the following can be represented using bits?
Video
All of these
Images
Text
18
A name space that can hold a value is which of the following?
String
Parameter
Variable
Turtle
19
What will be printed by the following code when it executes?
0
16
5
7
20
The following would most likely be better with TCP
Participating in a international meeting on Skype
Watching a live game on ESPN by streaming on your laptop
Sending images of a construction site 2 client from your PC
Sitting on a bus watching a video onyour cell phone
21
What is the decimal equivalent of the binary number 10101?
20
21
16
17
22
This phase of software development is where the most time is spent.
Maintaining the program
Coding
Testing the program
Analyzing the problem
23
What would this code print: first= “Hi”next = “There”print ((first + next) *2)
HiThere
HiThere2
Hi There Hi There
Hi There
24
Which of the following is NOT one of the “three basic structures” of coding?
Sequence
Flow
Loop
Conditional
25
If 2 letter remains then”, is an example of which type of statement?
Loop Statement
Sequential Statement
Decision Statement
True Statement
