Computer Science Final

Front 1

Computer Science is?

Back 1

The study of what can be computed.

Front 2

Which of the following is not a legal identifier?

Back 2

2Spam

Hint 2

2 what?

Front 3

The number of distinct patterns the can be represented with 8 bits is?

Back 3

256bits

Hint 3

Over 200

Front 4

A program that translates high level source code into machine code is called a?

Back 4

Complier

Front 5

Modern digital computers represent numbers:

Back 5

All of the above:

Using a sequence of bits

Using a binary representation

Using only zeroes and ones

Front 6

The python numeric type that can represent positive and negative whole numbers is?

Back 6

Int

Hint 6

Float or int??

Front 7

The goal of the design phase of the software development process is?

Back 7

To create an algorithm that solves the problems.

Front 8

Programs no longer require modification after they are written and debugged?

Back 8

False

Front 9

Python identifiers must start with a letter or underscore?

Back 9

True

Front 10

Suppose that the variable x holds a floating point number. Which expression gives value of x as int?

Back 10

int(x)

Front 11

Which of the following is not part of the definition of a computer?

Back 11

It is a electronic

Hint 11

And I quote: "Can you fix this?"

Front 12

The statement "All computers have the same power" means?

Back 12

Any computer can carry out the same task as any other computer

Front 13

The int data type is identical to the mathematical concept of integer?

Back 13

False

Front 14

What would Python print as a result of this interaction? print(2+3)

Back 14

5

Front 15

what is the result of evaluating 7//2?

Back 15

3

Hint 15

// - Makes the answer a integer

Front 16

Fragments of code that produce new data values are called?

Back 16

Expressions

Front 17

Identifiers in Python may not contain?

Back 17

Spaces

Front 18

When a Python int gets "too large" it?

Back 18

Requires more memory to store

Hint 18

Better download some more ram

Front 19

The process of describing exactly what a computer program will do to solve a problem is called?

Back 19

Specification

Front 20

The best way to write a program is to immediately write down some code and then debug it until it works?

Back 20

False

Front 21

What is the result of evaluating 3 + 4.0?

Back 21

7.0

Front 22

Consider the following program:

def main():

num = eval(input("Enter a number:"))

for i in range(5):

num = num//2

print(num)

main()

Back 22

32

Front 23

Which of the following is not an example of a function from the Python math library?

Back 23

abs(x)

Front 24

Since floating point numbers are extremely accurate, they should generally be used instead of ints?

Back 24

False

Front 25

Suppose that the variable x has the value 5 and y has the value 10. After executing this statement: x,y=y,x

What will the values of x and y be, respectively?

Back 25

10 and 5

Front 26

Consider the following function:

def greet(person):

print("Hello", person)

In this code, person, is an example of a(n)?

Back 26

Parameter

Front 27

One disadvantage of using binary floating point representations is that?

Back 27

They are usually only approximations

Front 28

The fragment of code eval(input("Enter a number:")) is best described as:

Back 28

An expression that returns the result of evaluating what the user types

Front 29

A comment in Python is indicated by a?

Back 29

Pound(#)

Hint 29

OMG HASHTAG THAT

Front 30

What Python statement allows the math library to be used in a program

Back 30

Import math

Front 31

Suppose a program executes the following statement.

Value = eval(input("Enter a number")

In response to the prompt, the user types 5 + 5. What is the result?

Back 31

The value will contain 10

Front 32

Which of the following is not a step in the software development process?

Back 32

Fee setting

Front 33

The most appropriate data type for storing the value of pi is?

Back 33

Float

Front 34

What does it mean for a mathematical model to be "chaotic"?

Back 34

Small changes in the initial conditions lead to drastic changes in the results.

Hint 34

"It was the straw that broke the camels back"

Front 35

What is the first number printed by the following program, assuming that the user enters 0.24 as the input?

def main():

x = eval(input("Enter a number between 0 and 1:"))

for i in range(10):

x = 3.9 * x * (1-x)

print(X)

Back 35

0.71136

Front 36

The Python numeric type for representing numbers containing fractional values?

Back 36

Float

Hint 36

What do boats do?

Front 37

Suppose that the variable x currently has the value 20. What statement would cause the value of x to become 25?

Back 37

x = x + 5

Front 38

What is the result of evaluating list(range(1,7,2))?

Back 38

None of the above

Front 39

Magnetic or optical media are generally used for?

Back 39

Secondary memory

Front 40

Which of the following is not a part of the IPO pattern?

Back 40

Program

Front 41

Fragments of code that produce new data values are called?

Back 41

Expressions

Front 42

Python identifiers must start with a letter or underscore?

Back 42

True

Front 43

What is the effect of the following Python statement?

for i range(10):

Back 43

It causes the program to do something 10 times

Front 44

Which of the following is not used in expressions?

Back 44

Statements

Front 45

Suppose that the variable x has the value 5 and y has the value 10. After executing these statements: x = y y=x

What will the values of x and y be, respectively?

Back 45

10 and 10

Front 46

Operations like addition and subtraction are defined in the math library?

Back 46

False

Front 47

The number of distinct values that can be represented using 5 bits is?

Back 47

32

Front 48

What is the correct formula for converting Celsius to Fahrenheit?

Back 48

F = (9/5)C+32

Front 49

The template, for in range():, describes?

Back 49

Counted Loop

Front 50

What is the result of evaluating 7%2?

Back 50

1

Front 51

What is the output from the following program, assuming that the user enters the input value 5?

def main():

n = eval(input("Enter a number:"))

ans = 0

for x in range(1,n):

ans = ans + x

print(ans)

main()

Back 51

None of the above

Front 52

The goal of the specification phase of the software development process is?

Back 52

To determine what the program should do

Front 53

The Python reserved word for performing output to the screen is?

Back 53

Print

Front 54

Which of the following is not one of the functional building blocks of a computer system?

Back 54

Monitor

Front 55

Python does not allow the input of multiple values with a single statement?

Back 55

False

Front 56

Suppose we interactively define a new function as follows:

def hello():

print("Hello")

print("Computer are Fun")

What would you type to invoke (run) this function?

Back 56

hello()

Front 57

What is the output from the following code fragment:

fact = 1

for factor in range(5):

fact = fact * factor

print(fact)

Back 57

0

Front 58

Which of the following is the most accurate model of assignment in Python?

Back 58

Sticky-note

Hint 58

It's sticky

Front 59

Python is an example of a?

Back 59

High-level programming language

Front 60

A step-by-step set of instructions for accomplishing some task is called a?

Back 60

Algorithm