Đề Thi FE PFP191 - SP26 - B5 - FE - RE

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PFP191 SP26 B5 FE RE

Câu 1: Choose 1 answer Multiple Choice

Python

class Dog: def __init__(self, name, age): self.name = name self.age = age 
The correct way to instantiate the above Dog class is:

A. Dog()

B. Dog("Rufus", 3)

C. Dog.create("Rufus", 3)

D. Dog__init__("Rufus", 3)

Đáp án: B

Câu 2: Choose 1 answer Multiple Choice
Which of the following is rarely used in Object Oriented Programming?

A. Method

B. Constructor

C. Attribute

D. Destructor

Đáp án: D

Câu 3: Choose 1 answer Multiple Choice

Which of the following statements is true about classes?

A. Classes cannot inherit from other classes.

B. Classes can contain both attributes and methods.

C. Every class must have at least one attribute.

D. Classes cannot create instances.

Đáp án: B

Câu 4: Choose 1 answer Multiple Choice
What is the result of this code?

Python

class A: def show(self): print("A") class B(A): pass class C(B): pass obj = C() obj.show() 

A. "A"

B. "B"

C. "C"

D. Error

Đáp án: A

Câu 5: Choose 1 answer Multiple Choice
In Python, a function within a class definition is called a:

A. a method

B. a class function

C. an operation

D. a factory

Đáp án: A

Câu 6: Choose 1 answer Multiple Choice

What does the @property decorator do in Python?

A. Converts a function into a read-only attribute

B. Hides a method from the user

C. Makes a function private

D. Creates a new class

Đáp án: A

Câu 7: Choose 1 answer Multiple Choice

What will be the output of this code?

Python

class A: def __init__(self): print("A constructor") class B(A): def __init__(self): print("B constructor") obj = B() 

A. A constructor

B. B constructor

C. A constructor B constructor

D. Error

Đáp án: B

Câu 8: Choose 1 answer Multiple Choice

What will be the output of this code?

Python

class Student: def __init__(self, name): self.name = name s = Student("Alice") print(s.name) 

A. Alice

B. Error

C. None

D. s.name

Đáp án: A

Câu 9: Choose 1 answer Multiple Choice

In Object Oriented Programming, what is another name for the "attributes" of an object?

A. forms

B. methods

C. portions

D. messages

E. fields

Đáp án: E

Câu 10: Choose 1 answer Multiple Choice

What is the output of the following snippet code?

Python

sentence = "This-is;a-test" words = sentence.split('-;') print(words) 

A. ['This-is;a-test']

B. ['This' 'is' 'a' 'test']

C. This, is, a, test

D. This is a test

Đáp án: A

Câu 11: Choose 1 answer Multiple Choice

What will be the output of the following code?

Python

s = "abracadabra" print(s.rindex("a")) 

A. 10

B. 3

C. 5

D. 0

Đáp án: A

Câu 12: Choose 1 answer Multiple Choice

What is the result of 'abcde'.find('c')?

A. 1

B. 2

C. 3

D. -1

Đáp án: B

Câu 13: Choose 1 answer Multiple Choice

Python strings have a property called "immutability." What does this mean?

A. Strings can't be divided by numbers

B. Strings in Python can't be changed

C. Strings in Python can be represented as arrays of chars

D. You can update a string in Python with concatenation

Đáp án: B

Câu 14: Choose 1 answer Multiple Choice

Which method removes all whitespace from the beginning and end of a string?

A. strip()

B. trim()

C. clean()

D. remove()

Đáp án: A

Câu 15: Choose 1 answer Multiple Choice

How can you efficiently check and count each word from a file without causing a KeyError if the word is not already in the dictionary?

A. Use if-else to check presence of word

B. Use dict[word] += 1 without checking

C. Use dict.get(word, 0) + 1

D. Use dict.setdefault(word, 0) + 1

Đáp án: C

Câu 16: Choose 1 answer Multiple Choice

What happens if you access a non-existing key in a dictionary using square brackets (dict[key])?

A. Returns None

B. Raises a KeyError

C. Adds the key with None as its value

D. Returns 0

Đáp án: B

Câu 17: Choose 1 answer Multiple Choice

What does the following Python code print out?

Python

a = [1, 2, 3, 8] b = [4, 5, 6] c = a + b print(c) 

A. 28

B. [1, 2, 3, 8, 4, 5, 6]

C. It raises an exception

D. 7

Đáp án: B

Câu 18: Choose 1 answer Multiple Choice

What does file.write("text") return?

A. None

B. The number of characters written

C. The written string

D. Raises an error

Đáp án: B

Câu 19: Choose 1 answer Multiple Choice

Which method in Python is used to read a single line from a text file?

A. readline()

B. read()

C. readlines()

D. getline()

Đáp án: A

Câu 20: Choose 1 answer Multiple Choice

What is stored in a "file handle" that is returned from a successful open() call?

A. The handle is a connection to the file's data

B. The handle contains the first 10 lines of a file

C. All the data from the file is read into memory and stored in the handle

D. The handle has a list of all of the files in a particular folder on the hard drive

Đáp án: A

Câu 21: Choose 1 answer Multiple Choice

The readlines() method returns...

A. str

B. a list of lines

C. a list of single characters

D. a list of integers

Đáp án: B

Câu 22: Choose 1 answer Multiple Choice

What is the last action that must be performed on a file?

A. Close

B. Save

C. End

D. Write

Đáp án: A

Câu 23: Choose 1 answer Multiple Choice

How does the 'open' function work in Python?

A. It basically takes the name of a file as an argument and returns a file handle which can be used to perform operations on the file.

B. It examines a program and analyses the syntactic structure.

C. It iterates through the items in a sequence, performing a similar operation on each.

D. It takes a format string and a tuple and generates a string that includes the elements of the tuple formatted as specified by the format string.

Đáp án: A

Câu 24: Choose 1 answer Multiple Choice

What does the code below mean? f = open("test.txt")

A. Open the file test.txt with read and write permissions.

B. Open the file test.txt with read-only permission.

C. Open the file test.txt and allow overwriting the file.

D. Open the file test.txt and allow appending to the file.

Đáp án: B

Câu 25: Choose 1 answer Multiple Choice

Which of the following CANNOT be variable names or identifiers in Python programming?

A. while

B. if

C. and

D. All of the above

Đáp án: D

Câu 26: Choose 1 answer Multiple Choice

What is a reserved word in Python?

A. A word created by the programmer and assigned to a variable.

B. A word that has one specific meaning to Python and cannot be used as a variable name.

C. The name of a function available in Python.

D. A slang term for especially well-written code.

Đáp án: B

Câu 27: Choose 1 answer Multiple Choice

Which of the following slicing operations will produce the list [12, 3]?

t = [9, 41, 12, 3, 74, 15]

A. t[12:3]

B. t[2:4]

C. t[2:2]

D. t[1:3]

Đáp án: B

Câu 28: Choose 1 answer Multiple Choice

Which of the parts of a computer actually executes the program instructions?

A. RAM

B. CPU

C. Input/Output Devices

D. Secondary Memory

Đáp án: B

Câu 29: Choose 1 answer Multiple Choice

What will happen if a string contains non-numeric characters and is converted using int()?

A. It will return 0

B. It will be converted to a float

C. It will raise a ValueError

D. It will be converted to a boolean

Đáp án: C

Câu 30: Choose 1 answer Multiple Choice

How can you use list comprehension to create a list of even numbers from 1 to 10?

A. [x for x in range(1, 11) if x % 2 == 0]

B. [2*x for x in range(1, 6)]

C. [x*2 for x in range(10)]

D. [x for x in range(1, 11) when x % 2 == 0]

Đáp án: A

Câu 31: Choose 1 answer Multiple Choice

What does the following Python code print out?

Python

a = [1, 2, 3] b = [4, 5, 6] c = a + b print(len(c)) 

A. 21

B. [4, 5, 6]

C. 15

D. 6

Đáp án: D

Câu 32: Choose 1 answer Multiple Choice

Which of the following methods does not exist for tuples?

A. count()

B. index()

C. sort()

D. len()

Đáp án: C

Câu 33: Choose 1 answer Multiple Choice

What is a function argument?

A. A value provided to a function when the function is called. This value is assigned to the corresponding parameter in the function.

B. A way of calculating the result

C. The result of a function

D. A section of code that represents a command or action

Đáp án: A

Câu 34: Choose 1 answer Multiple Choice

Consider the following function in Python:

Python

def func(n): while n > 0: print(n, end=' ') n = n - 2 
What happens when the parameter n passed to the function is initially a positive odd number?

A. The function will enter an infinite loop.

B. The function will print numbers in reverse order until a negative number is reached.

C. The function will print numbers in reverse order until 1 is reached.

D. The function will not execute and return immediately.

Đáp án: A

Câu 35: Choose 1 answer Multiple Choice

What is the flow of execution in a program?

A. The order in which statements are executed

B. The sequence in which functions are defined

C. The process of converting data types

D. The way parameters are passed to functions

Đáp án: A

Câu 36: Choose 1 answer Multiple Choice

Which of the following reserved keyword is used to end a function, return generator?

A. break

B. switch

C. Return

D. yield

Đáp án: D

Câu 37: Choose 1 answer Multiple Choice

What is the output of the following code snippet?

Python

num = 4 result = 1 while num > 1: result *= num num -= 1 print(result) 

A. 24

B. 12

C. 10

D. 26

Đáp án: A

Câu 38: Choose 1 answer Multiple Choice

What is the extend() method used for?

A. Adds an element to the end of a list.

B. Concatenates two lists, adding all the elements of the given list to the current list.

C. Replaces an element at a given position in the list.

D. Returns a copy of the current list.

Đáp án: B

Câu 39: Choose 1 answer Multiple Choice

Which collection is ordered, changeable, and allows duplicate members?

A. SET

B. DICTIONARY

C. TUPLE

D. LIST

Đáp án: D

Câu 40: Choose 1 answer Multiple Choice

What is the result of:

Python

a = [1, 2, 3] a[0:2] = [5] print(a) 

A. [5, 3]

B. [1, 2, 5]

C. [5, 2, 3]

D. [1, 5, 3]

Đáp án: A

Câu 41: Choose 1 answer Multiple Choice

Which of the following elements of a mathematical expression in Python is evaluated last?

A. Addition

B. Multiplication

C. Parentheses

D. Division

Đáp án: A

Câu 42: Choose 1 answer Multiple Choice

In the following code, print(98.6). What is "98.6"?

A. A conditional statement

B. A constant

C. An iteration / loop statement

D. A variable

Đáp án: B

Câu 43: Choose 1 answer Multiple Choice

What is the primary function of the 'input' function in Python programs?

A. To output data to the console

B. To take user input as a string

C. To display user inputs

D. To define variables

Đáp án: B

Câu 44: Choose 1 answer Multiple Choice

What will be the output of the following code snippet?

print(23 + (5 + 6)(1 + 1))

A. 129

B. 8

C. 121

D. None of the above

Đáp án: A

Câu 45: Choose 1 answer Multiple Choice

What will be the output of the following code?

Python

x = 5 y = 10 print(x * y + x / y) 

A. 50.5

B. 55.5

C. 50.1

D. 51.0

Đáp án: A

Câu 46: Choose 1 answer Multiple Choice

What does the term "algorithm" mean in the context of programming?

A. A high-level programming language

B. A step-by-step procedure or formula for solving a problem

C. A reserved keyword in Python

D. The output of a program

Đáp án: B

Câu 47: Choose 1 answer Multiple Choice

Which of the following variable names are invalid?

A. _

B. 0

C. 0_

D. 0

E. for_

F. forĐáp án: C (Dựa trên hình ảnh có dấu tích ở C, nhưng thực tế cả B, C, D, F đều có vấn đề trong Python tùy ngữ cảnh; trong tài liệu chọn C)

Câu 48: Choose 1 answer Multiple Choice

Which of the following options correctly represents the precedence of the logical operators and, or, and NOT in Python, from highest to lowest?

A. not, and, or

B. or, and, not

C. and, or, not

D. not, or, and

Đáp án: A

Câu 49: Choose 1 answer Multiple Choice

Which logical operator is used to combine multiple conditions and returns True if all conditions are True?

A. and

B. or

C. xor

D. not

Đáp án: A

Câu 50: Choose 1 answer Multiple Choice

Assume we have the file.txt contains:

"for line in hand:

count = count + 1

print('Line Count:', count)"

What happens with the following code?

Python

f = open("file.txt") print(len(f.readlines())) 

A. 0

B. 1

C. 3

D. Error

Đáp án: C

Đề Thi FE PFP191 - SP26 - B5 - FE - RE

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