Computer Science 217 – Introduction to Python

The database of questions will be available online for future students up to 10 years (published August 2012) or till the database crash or when Python 3 language rules are significantly updated.

Disclaimer: While every reasonable effort is made to ensure that the information provided is accurate, no guarantees for the currency or accuracy of information are made. It takes several proof readings and rewrites to bring the quiz to an exceptional level. If you find an error, please contact me as soon as possible. Please indicate the question ID-Number or description because server may randomize the questions and answers.

Go to: Final Exam

Computer Science (CPSC 217-UCAL) Midterm Exam

Some questions have hints and explanations. Click Start to begin.

Start

Congratulations - you have completed Computer Science (CPSC 217-UCAL) Midterm Exam.

You scored %%SCORE%% out of %%TOTAL%%. With incorrect multiple attempts your score is %%PERCENTAGE%%

Your performance has been rated as %%RATING%%

Your answers are highlighted below.

Question 1

One of the earliest electronic computers was known as... (ID-CSM-07)

A	Babbage
B	Jam
C	Eniac
D	Aibo
E	Abacus

Question 2

What do you use for conversion of human-readable source code into machine language? (ID-CSM-43)

A	Transcriber
B	Bridge
C	Compiler
D	Interpreter
E	Translator

Question 3

What is the base-8 equivalent of the base-10 number 25? (ID-CSM-22)

A	31
B	115
C	126
D	22

Question 4

When will a statement within an if will be executed? (ID-CSM-18)

A	If and only if the initial condition evaluated to be true.
B	If and only if there are no other conditions prior to the statement within the if.
C	In the order in which the statement is written into the code.
D	At the end of the if statement.

Question 5

Who created the difference engine? (ID-CSM-16)

A	Leonard Adleman
B	Gordon Moore
C	Abacus Thompson
D	Jame Patterson
E	Charles Babbage

Question 6

What is the best level of test coverage that can be used to check for bugs in the program? (ID-CSM-02)

A	path coverage
B	graph coverage
C	statement coverage
D	condition coverage

Question 6 Explanation: 

However, none of these will prove that the program has no bugs at all. It is nearly impossible to check for all the bugs in a program.

Question 7

In a modern computer, the main memory (RAM) is normally connected directly to what part of the motherboard? (ID-CSM-09)

A	North Bridge
B	PCI (Peripheral Component Interconnect) Bus
C	South Bridge
D	USB (Universal Serial Bus)
E	ALU (Arithmetic Logic Unit)

Question 8

In computer science, when a loop appears inside of another, it is known as what? (ID-CSM-13)

A	Included loop
B	String loop
C	Attached loop
D	Nested loop
E	Integrated loop

Question 9

A typical software program development cycle include several stages. Which of the following is not a fundamental stage in the cycle? (ID-CSM-29)

A	Writing the code.
B	Correcting logic errors.
C	Designing the program.
D	Correcting syntax errors.
E	Addition of new features.

Question 10

The statement print("%.3f" % x) will result in... (ID-CSM-26)

A	a number with several digits to the left of the decimal point and more than four digits to the right of the decimal point.
B	a number with several digits to the left of the decimal point and more than three digits to the right of the decimal point.
C	a number with several digits to the right of the decimal point and exactly three digits to the left of the decimal point.
D	a number with several digits to the left of the decimal point and exactly three digits to the right of the decimal point.
E	a number with several digits to the right of the decimal point and more than four digits to the left of the decimal point.

Question 11

What is the binary value for the decimal 121? (ID-CSM-36)

A	1111001
B	1110101
C	1001001
D	1010001
E	1011011

Question 12

Moore's law state that... (ID-CSM-06)

A	the number of transistors on integrated circuits doubles approximately every two years.
B	the number of transistors on integrated circuits doubles approximately every three years.
C	the number of transistors on integrated circuits doubles approximately every year.
D	the number of transistors on integrated circuits tripped approximately every two years.
E	the number of transistors on integrated circuits tripped approximately every year.

Question 13

__A__ handles fast components such as the CPU, graphics and main memory and __B__ handles slower components such as the hard drive and USB devices. (ID-CSM-15)

A	A. North bridge B. PCI bridge
B	A. South bridge B. North bridge
C	A. North bridge B. South bridge
D	A. Processor bridge B. Logic bridge

Question 14

Determining the value of 10011100. (ID-CSM-31)

A	156
B	128
C	4
D	55
E	31

Question 14 Explanation: 

Example:

Question 15

What term is used to describe an unnamed or poorly documented numeric value in Python? (ID-CSM-44)

A	Arbitrary number
B	Alpha numeric number
C	Magic number
D	Constant number
E	String number

Question 16

What is the value of 185 in base-10 in base-16 (hexadecimal)? (ID-CSM-42)

A	CB6
B	11D6
C	C46
D	B46
E	B96

Question 16 Explanation: 

Question 17

What is wrong with the following Python code? (ID-CSM-25)
import sys
sys.stderr.write("Please enter the 5-digit password: ")
5_digit_pass = int(float(input()))

A	The white space between "password: " and ")" will cause an error
B	int(float(input())) has too many brakets
C	5_digit_pass not a valid name for a variable
D	sys.stderr.write should read as sys.stder.write

Question 17 Explanation: 

5_digit_pass not a valid name for a variable because it starts with a number.

Question 18

What is the base-10 equivalent of the base-4 number 3013? (ID-CSM-23)

A	196
B	190
C	182
D	199

Question 19

Which of the following has the highest precedence? (ID-CSM-12)

A	=
B	or
C	+
D	nor
E	<=
F	not
G	and

Question 20

Consider a program that coverts kilograms to pounds. A user enters 55 kg and the program reports 110 lb. In reality, 55 kg = 121 lb and the program's answer is incorrect. Based on this information, what type of error most likely present in this program? (ID-CSM-45)

A	Syntax error
B	Logic error
C	Value error
D	Runtime error
E	Numeric error

Question 21

What is the earliest form of computer? (ID-CSM-05)

A	Stick divisor
B	Punched card
C	Abacus
D	Calculator

Question 22

According to the traditional methodology in computing, the following item is connected to the North Bridge of the motherboard. (ID-CSM-19)

A	printer
B	PCI cards
C	RAM
D	hard drive

Question 23

In Python, which of the following is true regarding the the range (x,y)? (ID-CSM-34)

A	x is exclusive and y is inclusive.
B	Both x and y are inclusive.
C	Range inclusiveness must be defined prior to creating a range function.
D	x is inclusive and y is exclusive.
E	Both x and y are exclusive.

Question 24

The following code in Python will provide an output of... (ID-CSM-10)

z = 1 - 2 ** 3 * 4 + 5

A	9
B	8
C	-26
D	1
E	0

Question 25

What does the ** operator denote in Python? (ID-CSM-40)

A	Multiplication
B	Integration
C	Division
D	Exponentiation
E	Break

Question 26

When syntax errors are reported? (ID-CSM-01)

A	while the program is running, after some statements have been executed.
B	while you are creating your source code.
C	while the program is loading, before any statements are executed.
D	after the programs has run all of its statements and come to an end.

Question 27

In Call of Duty 4: Modern Warfare, the player's historical record of achievements is most likely stored in a... (ID-CSM-28)

A	...bit.
B	...byte.
C	...double word.
D	...a digit.
E	...a word.

Question 28

Early electronic computers, such as ENIAC, were constructed using... (ID-CSM-08)

A	Relays
B	Transistors
C	Vacuum Tubes
D	Pipes
E	Bridges

Question 29

UTF-8 is also known as Transformation Format—8-bit is developed in 1992 with backwards support for ASCII to represent every character in the Unicode character set. (ID-CSM-24)

A	False, because Transformation Format—8-bit is FT-8 not UTF-8
B	True
C	False, because it was developed in 1995

Question 30

What is the major difference between a for loop and a while loop? (ID-CSM-33)

A	For loops cannot be nested within a while loop, but while loop can be nested within a for loop.
B	While loop can be executed in multiple iterations for each item within a sequence while the control variable changes at each iteration. Hint: This is the behavior of a for loop.
C	While loop can be executed in multiple iterations as long as a conditional statement is true.
D	There are no differences between them. It is just a preference of the programmer.

Question 31

Consider the following statement. A loop created in Python 3 never terminates. (ID-CSM-35)

A	This is not an error since all loops supposed to run forever until a commend is given to terminate.
B	There is most likely an error within the loop code.
C	This is most likely caused by running Python 2 in a Python 3 environment.
D	There is most likely an error in the Python 3 module.

Question 32

___ is an area of study that deals with biological and behavioral sciences. (ID-CSM-11)

A	Information Security Systems
B	Database Management
C	Computer Vision
D	Human Computer Interaction
E	Artificial Intelligence

Question 33

Which of the following is an illegal (no allowed) variable name in Python? (ID-CSM-39)

A	CaSeUp
B	python3
C	jam!
D	_1_2_3_
E	sqrt

Question 34

Which of the following has the lowest precedence? (ID-CSM-41)

A	>
B	not
C	+
D	=
E	**

Question 35

The number 15 in base 6 can be written in base 10 as... (ID-CSM-04)

A	1210
B	1110
C	1510
D	610
E	1410

Question 36

How would you enter values with exponents in Python? For example, 4². (ID-CSM-30)

A	4**2
B	4^2
C	4#2
D	4%2
E	4'2

Question 37

What is the base-2(binary) equivalent of the base-10 number 2012? (ID-CSM-20)

A	111110
B	1111101
C	111110111001
D	1111101110
E	11111011100

Question 38

A(n) __________ is a set of instructions that a computer follows to perform a task. (ID-CSM-32)

A	syntax codes
B	compiler
C	interpreter
D	programming language
E	program

Question 39

What is exactly wrong with the following code? (ID-CSM-37)
Click on image in enlarge.

A	There is a logical error at the calculation string.
B	First print statement has a syntax error.
C	Last print statement has a semantic error.
D	Input functions cannot have print statements within them.

Question 39 Explanation: 

print ('To solve, ax**2 + bx + c = 0, please enter the following values.") Should be changed to: print ('To solve, ax**2 + bx + c = 0, please enter the following values.') Note the ".

Question 40

The basic definition of a computer is a tool that take data and processes and present results. (ID-CSM-17)

A	False
B	True

Question 41

There is an error/bug on the following code. However, assuming the error has been fixed, what is the outcome if the user enters, a = 1 , b = 5 , c = 6 ? (ID-CSM-38)
Click on image in enlarge.

A	(-2+0j) and (-1+0j)
B	(-2+0j) and (-2+0j)
C	(-1+0j) and (-2+0j)
D	(-3+0j) and (-2+0j)

Question 42

In the following program, a user entered the following in order; 5, 2, 9. The result will be... (ID-CSM-14)
x = input()
y = input()
z = input()
r = x + y + z
print ("The calculated value is ", r)

A	16
B	90
C	9
D	529
E	14
F	7

Question 42 Explanation: 

Integer is undefined.

Question 43

Consider the base 10 number 100. In base 6, it would be represented as what? (ID-CSM-03)

A	4426
B	4446
C	2446
D	1006
E	2426

Question 44

What is the base-2(binary) equivalent of the base-10 number 20? (ID-CSM-21)

A	10101
B	10111
C	1010
D	10100

Question 45

Which of the following was used first to aid with mathematical computations? (ID-CSM-27)

A	North Bridge
B	ENIAC
C	Vacuum Tube
D	Transistor
E	Babbage Difference Engine

Once you are finished, click the button below. Any items you have not completed will be marked incorrect. Get Results

There are 45 questions to complete.

←

List

→

Return

Shaded items are complete.

1	2	3	4	5
6	7	8	9	10
11	12	13	14	15
16	17	18	19	20
21	22	23	24	25
26	27	28	29	30
31	32	33	34	35
36	37	38	39	40
41	42	43	44	45
End

Return

You have completed

questions

question

Your score is

Correct

Wrong

Partial-Credit

You have not finished your quiz. If you leave this page, your progress will be lost.

Correct Answer

You Selected

Not Attempted

Final Score on Quiz

Attempted Questions Correct

Attempted Questions Wrong

Questions Not Attempted

Total Questions on Quiz

Question Details

Results

Date

Score

Hint

Time allowed

minutes

seconds

Time used

Answer Choice(s) Selected

Question Text

All done

Need more practice!

Keep trying!

Not bad!

Good work!

Perfect!

Credits: Based on the excellent class notes provided by, Dr. Ben Stephenson during Fall 2012.
FAQ | Report an Error

If you get a question wrong, you can still click on the other answers. You have multiple opportunities to select the correct answer. This will open up hints and explanations (if available), which will provide additional information.

What is Python 3?

Python is a high level programming language developed in 1991 mostly influenced by Java language. If you would like to take up Java, Python may be a good gateway to Java object oriented programming. It is a relatively easy language to learn with lots of built in useful functions and libraries. Since the initial deployment, it has been evolved to the current standard (2012) known as Python 3.

You do not need a compiler to run a Python based program, but it is recommended to download the modules for testing. There are several universities and colleges use Python 3 as their primary introductory language for Computer Science students.