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IPT MOD 3&4

QuestionAnswer
Given the code below: a = ‘the quick brown fox’ print (a[:10]) What will be the output? the quick a[:10] means take the first 10 characters (from index 0 to 9). That includes the space after quick, so you’ll see a space at the end.
The replace() method replaces a string with another string. True
Given the code below: a = “Study, Program” print (a[2:]) What will be the output? udy a[2:] starts at index 2 and goes to the end of the string.
Square brackets can be used to access elements of the string. True Square brackets [] are used to access elements (characters or slices) of a string in Python.
The lower() method removes any whitespace from the beginning or the end. False
Parenthesis can be used to access elements of the string. False You use square brackets [], not parentheses (), to access elements of a string in Python.
Given the code below: b = “Learning, Python!” print (b.lower()) What will be the output? learning, python!
The strip() method splits the string into substrings if it finds instances of the separator. False strip() does NOT split a string. It only removes whitespace (or specified characters) from the beginning and end of the string.
Given the code below: a = “Learning, Python!” print a.split (“ ,”)) What will be the output? [‘Learning’, ‘Python!’
String literals in python are surrounded by either single quotation marks, or double quotation marks. True In Python, string literals can be written using single quotes ' ' or double quotes " ".
Binary files are not human readable. Group of answer choices True False True
What does the <readlines> method returns? list of lines The readlines() method reads all the lines from a file and returns them as a list, where each element is a line (including the newline character \n at the end, if present).
writelines() method reads the characters starting from the current reading position up to a newline character. False The writelines() method does not read anything. It is used to write a list of strings to a file.
You need to read a file object that will be mapped to an image file called abc.txt. Which of the following is the correct syntax to use. open('abc.txt','wt')
To open a file in binary format, add "b" to the mode parameter. True
The buffer size argument is an optional parameter which decides the purpose of opening a file, e.g. read, write, append, etc. False The buffer size argument in open() controls how much data is read/written at a time (buffering), not the purpose of opening the file.
The "w" mode will always treat the file as a new file. True Opening a file in 'w' (write) mode will: Create a new file if it doesn’t exist. Truncate (erase) the file if it already exists, treating it as a new empty file.
"rb" mode opens the file in binary format for reading. True
"r" mode allows reading only and not writing. True
To open a file in binary format, add "a" to the mode parameter. False Explanation: To open a file in binary format, you add b to the mode parameter (e.g., 'rb' for reading binary, 'wb' for writing binary).
Given the code below: a = “Study” b = “Program” c = a + b print (c) What will be the output? StudyProgram
When slicing a String the return value is a range of characters. True
Given the code below: a = “Learning, Python!” print (a[7]) What will be the output? G
Given the code below: a = ‘the quick brown fox’ print (len(a)) What will be the output? 19
Given the code below: b = “Learning, Python!” print (len(b)) What will be the output? 17
Given the code below: a = “Learning, Python!” print (a[2:4]) What will be the output? Ar
Given the code below: b = “Learning, Python!” print (b.upper()) What will be the output? PYTHON!
An example of an illegal character is a double quote inside a string that is surrounded by double quotes. True
Which of the following is used to open a file for both reading and writing? Group of answer choices w rb+ r+ w+ r+ exp: 'r+' → Open a file for both reading and writing, without truncating the file. 'w+' → Open for reading and writing, but it truncates (erases) the file first. 'w' → Write only (truncates file). 'rb+' → Read and write in binary mode.
Which of the following is incorrect file handling mode in Python. v
In the open() method, the first parameter is the name of a file including its path. True
The readline() method used to save the contents of a list object in a file. False
Which of the following is used to open a file for both writing and reading? w+
Which of the following is used to open a file for both appending and reading? a+
Which of the following is used to open a file for appending? a
Which of the following is used to open a file for writing only? w
Given the code below: a = ‘the quick brown fox’ print (a[4:]) What will be the output? quick brown fox a[4:] means start at index 4 and go to the end of the string.
An escape character is a slash / followed by the character you want to insert. False
When slicing a String the return value is a range of data types. True
The lower() method replaces a string with another string. False
Given the code below: a = ‘the quick brown fox’ print (a.upper ()) What will be the output? THE QUICK BROWN FOX
Given the code below: a = “Learning” b = “Python” c = a + “ “ + b print (c) What will be the output? Learning Python
To concatenate, or combine, two strings you can use the * operator. False
Which of the following is incorrect file handling mode in Python. xr
Which of the following is used to open a file for reading only? r
The file object has an inbuilt iterator. True
The built-in function bytearray() returns a byte representation of the object. True The bytearray() function returns a mutable sequence of bytes representing the given object.
The access mode parameter is an optional parameter which decides the purpose of opening a file, e.g. read, write, append, etc. True
You develop a Python application for your school. You need to read and write data to a text file. If the file does not exist it must be created. If the file has content the content must be removed. open(“local_data”, “w+”)
The built-in function __________returns a byte representation of the object. bytearray()
Which of the following is incorrect file handling mode in Python. t+
Given the code below: a = “Learning” b = “Python” c = a + b print (c) What will be the output? LearningPython
Python does not have a character data type, a single character is simply a string with a length of 1. True
Given the code below: b = “Python” print (len(b)) What will be the output? 6
Given the code below: a = “Learning, Python!” print (a[2:6]) What will be the output? arni
Given the code below: a = “Learning, Python!” print (a[-5:-2]) What will be the output? Tho
To concatenate, or combine, two strings you can use the + operator. True
writelines() To get the length of a string, use the len() function. False
Which of the following is incorrect file handling mode in Python. rz
In the access mode, the first parameter is the name of a file including its path. False
Which of the following is used to open a file for reading only binary formats? Group of answer choices ab+ w rb r+ rb --- 'rb' → Open a file for reading only in binary mode. 'ab+' → Append and read in binary mode. 'w' → Write only (text mode). 'r+' → Read and write (text mode).
“____" mode allows reading only and not writing. r
Strings in Python are arrays of bytes representing unicode characters. True
Given the code below: x = “Success” print (len(x)) What will be the output? 7
Given the code below: a = ‘the quick brown fox’ print (‘fox’ in a) What will be the output? True
Which of the following is used to open a file for both appending and reading in binary format? ab+
read(chars) method reads the specified number of characters starting from the current position. True
To determine if a specified item is present in a list use the in keyword. True
To change the value of a specific item, refer to the index item. False
Tuple is a collection which is ordered and unchangeable. True
Given the code below: aTuple = (10, 20, 30, 40, 50) print(aTuple[2:5]) What will be the output? (30, 40, 50)
In Python tuples are written with square brackets True
Tuples are mutable. False
Once a tuple is created, you can change its values. False
A tuple is a collection which is ordered and unchangeable. True
Given the code below: aTuple = (100, 200, 300, 400, 500) print(aTuple[-3:-1]) What will be the output? (300, 400)
Which of the following is a Python tuple? (10, 20, 30)
What method used to return a list of all the values in the dictionary? values()
To add more than one item to a set use the update() method. True
In Python sets are written with square brackets. False
What method used to determine how many items a dictionary has? len()
Which of these about a set is not true? Immutable data type
When using the pop() method in set, the item that gets removed is known. False
Suppose d = {“john”:40, “peter”:45}, to delete the entry for “john” what command do we use? del d[“john”]
To add one item to a set use the update() method. False To add a single item to a set in Python, you use the add() method, not update()
The remove keyword will delete the set completely. False
In Python sets are written with curly brackets. True
Set is a collection which is unordered, changeable and indexed. False
You cannot convert the tuple into a list. False
Tuple is a collection which is ordered and changeable. False
In Python lists are written with square brackets. True
Set is a collection which is unordered and unindexed. True
List is a collection which is unordered and changeable False A list is a collection that is ordered and changeable (mutable)
List is a collection which is ordered and changeable True
Given the code below: d1 = {“john”:40, “peter”:45} d2 = {“john”:466, “peter”:45} d1 == d2 What will be the output? False
Adding an item to the dictionary is done by using a new index key and assigning a value to it. True
What method used to return a copy of the dictionary? copy()
Given the code below: >>> s={5,6} >>> s*3 Error as unsupported operand type for set data type
What method is used to return a new set containing all items from both sets? union()
The clear() keyword empties the dictionary. True
A set is a collection which is unordered and unindexed. True
To add more than one item to a set use the add() method. True
Given the code below: aTuple = (10, 20, 30, 40, 50) print(aTuple[3:]) What will be the output? (40, 50)
Given the code below: x = list (('abc',23, (78,16),3.14,[1,2,3,4])) print(x[-1]) What will be the output? [1,2,3,4]
Given the code below: aTuple = (10, 20, 30, 40, 50) print(aTuple[:4]) What will be the output? (10, 20, 30, 40) The slicing operator [:4] extracts elements from the start of the tuple up to, but not including, index 4, which corresponds to the first four items.
Given the code below: n = [4,2,8,5,7] n.append(3) print(n) What will be the output? [4,2,8,5,7,3]
When specifying a range, the return value will be a new list with the specified items. True
Dictionary is a collection which is unordered, changeable and indexed. False
Once a tuple is created, you cannot change its values. True
List is a collection which is ordered and changeable. True
The copy() method returns a copy of the dictionary. True
You can loop through a dictionary by using while loop. True
Make a copy of a dictionary with the dict() method. True
Given the code below: d = {“john”:40, “peter”:45} “d[“john”] What will be the output? 40 In Python, a dictionary is a collection of key-value pairs. You access a specific value by providing its corresponding key inside square brackets.
The update() method is used to return a new set containing all items from both sets. False
Given the code below: nums = set([1,1,2, 3,3,3,4,4]) print(len(nums)) What will be the output? 4 A set in Python automatically removes duplicate values.
A dictionary is a collection which is unordered, changeable and indexed. True
The len() method to determine how many items (key-value pairs) a dictionary has. True The len() method returns the number of key-value pairs in a dictionary.
Given the code below: x = list (('abc',23, (78,16),3.14,[1,2,3,4])) print(x[:3]) [‘abc’,23,(78,16)] x is a list with 5 elements. x[:3] means “get elements from index 0 up to (but not including) index 3”. That includes the first three elements of the list.
You can convert the tuple into a list. True
Given the code below: aTuple = (10, 20, 30, 40, 50) print(aTuple[2:4]) What will be the output? (30, 40)
Given the code below: x = list (('abc',23, (78,16),3.14,[1,2,3,4])) print(x[-1][-2]) What will be the output? 3
Given the code below: >>>t=(1,2,4,3) >>>t[1:3] What will be the output? (2,4)
Given the code below: >>>my_tuple = (1, 2, 3, 4) >>> my_tuple.append = (5, 6, 7) >>>print len(my_tuple) Error Tuples are immutable in Python, meaning you cannot add or change elements.
Which of the following statements is used to create an empty set? set()
To add one item to a set use the add() method. True
What method used to remove an item in a set? pop()
You can loop through a dictionary by using a for loop. True
Given the code below: aTuple = “Yellow”, 20, “Red” a, b, c = aTuple print (c) What will be the output? Red
Suppose t = (1, 2, 4, 3), which of the following is incorrect? t[3] = 45
In Python lists are written with parenthesis. False
Which of the following is a Python tuple? (1, 2, 3)
What method used to remove all the elements from the set? clear()
A list is a collection which is unordered and unindexed. False
The union() method is used to return a new set containing all items from both sets. True
What method used to add more than one item to a set? update()
Given the code below: d1 = {“john”:40, “peter”:45} d2 = {“john”:466, “peter”:45} d1 > d2 What will be the output? Group of answer choices True False None Error Error
The keys() method returns the value of the specified key. False
To change the value of a specific item, refer to the index number. False To change the value of a specific item in a dictionary, you refer to the key, not an index number.
Dictionary is a collection which is unordered and unindexed. True
The pop() method can be used to remove an item in a set. True
What method used to return the value of the specified key? KEY() (NONE OF THE ABOVE TLAGA I2)
Given the code below: a = {5,4} b={1,2,4,5} a<b What will be the output? True
Given the code below: x = list (('abc',23, (78,16),3.14,[1,2,3,4])) print(x[0][1:]) What will be the output? Group of answer choices ac ab abc bc bc
Is a collection which is ordered and changeable. Allows duplicate members. List
Tuples are immutable. True
Given the code below: aTuple = “Yellow”, 20, “Red” a, b, c = aTuple print (a) Group of answer choices Yellow None of the given Red 20 Yellow
When using the pop() method in set, the item that gets removed is unknown. True
Given the code below: >>>t =(1,2,4,3) >>>t[1:1] What will be the output? Group of answer choices (1,2,4) (2,4,3) (1, 2) (2, 4) (2, 4) (NONE OF THE ABOVE DAPAT)
Which of the following collection is unordered, changeable and indexed. dictionary
The del keyword will delete the set completely. True
A set is a collection which is unordered, changeable and indexed. False
Given the code below: d = {“john”:40, “peter”:45} “john” in d What will be the output? True
Created by: jajacoal
 

 



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