End Test

Question 1

Which of the following are examples of algorithms?
Spell Checker for word processor, A recipe, A set of instructions for putting together a utility shed

Answer 1

Spell checker recipe and set of instructions

Question 2

Which of the following are output devices?

Answer 2

A monitor

Question 3

Which of the following outputs data in a Python program?

Answer 3

The print statement

Question 4

Which of the following are input devices?

Answer 4

A mouse, Microphone

Question 5

Which of the following contain information?

Answer 5

An audio CD, A running computer, A book

Question 6

Which of the following translates and executes instructions in a programming language?

Answer 6

An interpreter

Question 7

What is the purpose of the CPU?

Answer 7

Decode and execute instructions

Question 8

What is the set of rules for forming sentences in a language called?

Answer 8

Syntax

Question 9

Which of the following are general-purpose computing devices?

Answer 9

A laptop computer

Question 10

What is IDLE used to do?

Answer 10

All of the above

Question 11

The expression 2 ** 3 ** 2 evaluates to which of the following values?

Answer 11

512

Question 12

The expression round(23.67) evaluates to which of the following values?

Answer 12

24

Question 13

What must a programmer use to test a program?

Answer 13

A reasonable set of legitimate inputs

Question 14

What must you use to create a multi-line string?

Answer 14

Embedded newline characters, A single pair of three consecutive double quotation marks

Question 15

Which statement imports the functions sqrt and log from the math module?

Answer 15

from math import sqrt, log

Question 16

What is used to begin an end-of-line comment?

Answer 16

symbol

symbol

Question 17

Which of the following lists of operators is ordered by decreasing precedence?

Answer 17

**, *, +

Question 18

What does a programmer do during the analysis phase of software development?

Answer 18

Decides what the program will do and determines its user interface

Question 19

Which function returns a list of the named resources (functions and variables) in its argument?

Answer 19

dir

Question 20

Assume that the variable name has the value 33. What is the value of name after the assignment name = name * 2 executes?

Answer 20

66

Question 21

A Boolean expression using the and operator returns True when

Answer 21

both operands are true.

Question 22

How many times does a loop with the header for count in range (10): execute the statements in its body?

Answer 22

10 times

Question 23

What is the output of the loop for count in range(5): print(count, end = ‘ ‘)?

Answer 23

0 1 2 3 4

Question 24

A for loop is convenient for

Answer 24

counting through a sequence of numbers, running a set of statements a predictable number of times.

Question 25

Consider the following code segment: count = 5 while count > 1: print(count, end = ' '); count -= 1. What is the output produced by this code?

Answer 25

5 4 3 2

Question 26

When the function range receives two arguments, what does the second argument specify?

Answer 26

The last value in a sequence of integers minus 1

Question 27

Consider the following code segment: theSum = 0.0 while True: number = input('Enter a number: '); if number == ': break'; theSum += float(number). How many iterations does this loop perform?

Answer 27

At least one

Question 28

Consider the following code segment: count = 1 while count <= 10: print(count, end = ' '). Which of the following describes the error in this code?

Answer 28

The loop is infinite.

Question 29

By default, the while loop is an

Answer 29

entry-controlled loop.

Question 30

Consider the following code segment: x = 5; y = 4; if x > y: print(y); else: print(x). What value does this code segment print?

Answer 30

4

Question 31

The binary number 111 represents which decimal integer?

Answer 31

7

Question 32

The variable data refers to the string 'No way!'. The expression data.find('way!') evaluates to

Answer 32

3

Question 33

The variable data refers to the string 'No way!'. The expression data[-1] evaluates to

Answer 33

'!'

Question 34

The variable data refers to the string 'No way!'. The expression data[3:6] evaluates to

Answer 34

'way'

Question 35

A Caesar cipher locates the coded text of a plaintext character

Answer 35

a given distance to the left or to the right in the sequence of characters

Question 36

The variable data refers to the string 'No way!'. The expression data[1] evaluates to

Answer 36

'o'

Question 37

The variable data refers to the string 'No way!'. The expression len(data) evaluates to

Answer 37

7

Question 38

Which of the following binary numbers represents the decimal integer value 8?

Answer 38

1000

Question 39

Which file method is used to read the entire contents of a file in a single operation?

Answer 39

read

Question 40

The variable data refers to the string 'No way!'. The expression data.replace('No', 'Yes') evaluates to

Answer 40

'Yes way!'

Question 41

The variable data refers to the list [10, 20, 30]. The expression data[1] evaluates to

Answer 41

20

Question 42

The variable data refers to the list [10, 20, 30]. The expression data.index(20) evaluates to

Answer 42

1

Question 43

The variable info refers to the dictionary {'name':'Sandy', 'age':17}. The method to remove an entry from a dictionary is named

Answer 43

pop

Question 44

The variable info refers to the dictionary {'name':'Sandy', 'age':17}. The expression info.get('hobbies', None) evaluates to

Answer 44

None

Question 45

The variable data refers to the list [10, 20, 30]. After the statement data[1] = 5, data evaluates to

Answer 45

[10, 5, 30]

Question 46

The variable data refers to the list [10, 20, 30]. The expression data + [40, 50] evaluates to

Answer 46

[10, 20, 30, 40, 50]

Question 47

The variable data refers to the list [10, 20, 30]. After the statement data.insert(1, 15), the original data evaluates to

Answer 47

[10, 15, 20, 30]

Question 48

The variable info refers to the dictionary {'name':'Sandy', 'age':17}. The expression list(info.keys()) evaluates to

Answer 48

['name', 'age']

Question 49

The variable data refers to the list [10, 20, 30]. The expression data[1:3] evaluates to

Answer 49

[20, 30]

Question 50

Which of the following are immutable data structures?

Answer 50

strings and tuples

Question 51

When a recursive function is called, the values of its arguments and its return address are placed in a

Answer 51

stack frame

Question 52

Top-down design is a strategy that

Answer 52

starts with the main function and develops the functions on each successive level beneath the main function

Question 53

The relationships among functions in a top-down design are shown in a(n)

Answer 53

structure chart

Question 54

The expression list(map(math.sqrt, [9, 25, 36])) evaluates to

Answer 54

[3.0, 5.0, 6.0]

Question 55

The expression list(filter(lambda x: x > 50, [34, 65, 10, 100])) evaluates to

Answer 55

[65, 100]

Question 56

A recursive function

Answer 56

usually runs more slowly than the equivalent loop

Question 57

A data structure used to implement a jump table is a

Answer 57

dictionary

Question 58

The lifetime of a parameter is

Answer 58

the duration of its function's execution

Question 59

The scope of a temporary variable is

Answer 59

the statements in the body of the function where the variable is introduced

Question 60

The expression reduce(max, [34, 21, 99, 67, 10]) evaluates to

Answer 60

99