Explore topic-wise MCQs in Technical Programming.

This section includes 1007 Mcqs, each offering curated multiple-choice questions to sharpen your Technical Programming knowledge and support exam preparation. Choose a topic below to get started.

151.

Correct syntax of file.readlines() is?

A. fileObject.readlines( sizehint );
B. fileObject.readlines();
C. fileObject.readlines(sequence)
D. none of the mentioned
Answer» B. fileObject.readlines();
Discussion
152.

Correct syntax of file.writelines() is?

A. file.writelines(sequence)
B. fileObject.writelines()
C. fileObject.writelines(sequence)
D. none of the mentioned
Answer» D. none of the mentioned
Discussion
153.

What is the output of this program? fo = open("foo.txt", "wb") print "Name of the file: ", fo.name fo.flush() fo.close()

A. Compilation Error
B. Runtime Error
C. No Output
D. Flushes the file when closing them
Answer» E.
Discussion
154.

What is the correct syntax of open() function?

A. file = open(file_name [, access_mode][, buffering])
B. file object = open(file_name [, access_mode][, buffering])
C. file object = open(file_name)
D. none of the mentioned
Answer» C. file object = open(file_name)
Discussion
155.

What is unpickling?

A. It is used for object serialization
B. It is used for object deserialization
C. None of the mentioned
D. All of the mentioned
Answer» C. None of the mentioned
Discussion
156.

What is the pickling?

A. It is used for object serialization
B. It is used for object deserialization
C. None of the mentioned
D. All of the mentioned
Answer» B. It is used for object deserialization
Discussion
157.

Which of the following mode will refer to binary data?

A. r
B. w
C. +
D. b
Answer» E.
Discussion
158.

What is the output of this program? import sys sys.stdout.write(' Hello\n') sys.stdout.write('Python\n')

A. Compilation Error
B. Runtime Error
C. Hello Python
D. Hello Python
Answer» E.
Discussion
159.

Which is/are the basic I/O connections in file?

A. Standard Input
B. Standard Output
C. Standard Errors
D. All of the mentioned
Answer» E.
Discussion
160.

What is the use of truncate() method in file?

A. truncates the file size
B. deletes the content of the file
C. deletes the file size
D. none of the mentioned
Answer» B. deletes the content of the file
Discussion
161.

What is the use of seek() method in files?

A. sets the file’s current position at the offset
B. sets the file’s previous position at the offset
C. sets the file’s current position within the file
D. none of the mentioned
Answer» B. sets the file’s previous position at the offset
Discussion
162.

What is the current syntax of remove() a file?

A. remove(file_name)
B. remove(new_file_name, current_file_name,)
C. remove(() , file_name))
D. none of the mentioned
Answer» B. remove(new_file_name, current_file_name,)
Discussion
163.

What is the current syntax of rename() a file?

A. rename(current_file_name, new_file_name)
B. rename(new_file_name, current_file_name,)
C. rename(()(current_file_name, new_file_name))
D. none of the mentioned
Answer» B. rename(new_file_name, current_file_name,)
Discussion
164.

What is the use of tell() method in python?

A. tells you the current position within the file
B. tells you the end position within the file
C. tells you the file is opened or not
D. none of the mentioned
Answer» B. tells you the end position within the file
Discussion
165.

Which one of the following is not attributes of file

A. closed
B. softspace
C. rename
D. mode
Answer» D. mode
Discussion
166.

What is the output of this program? str = input("Enter your input: "); print "Received input is : ", str

A. Enter your input: [x*5 for x in range(2,10,2)]. Received input is : [x*5 for x in range(2,10,2)].
B. Enter your input: [x*5 for x in range(2,10,2)]. Received input is : [10, 30, 20, 40].
C. Enter your input: [x*5 for x in range(2,10,2)]. Received input is : [10, 10, 30, 40].
D. None of the mentioned
Answer» B. Enter your input: [x*5 for x in range(2,10,2)]. Received input is : [10, 30, 20, 40].
Discussion
167.

What is the output of this program? str = raw_input("Enter your input: "); print "Received input is : ", str

A. Enter your input: Hello Python Received input is : Hello Python
B. Enter your input: Hello Python Received input is : Hello
C. Enter your input: Hello Python Received input is : Python
D. None of the mentioned
Answer» B. Enter your input: Hello Python Received input is : Hello
Discussion
168.

Which are the two built-in functions to read a line of text from standard input, which by default comes from the keyboard?

A. Raw_input & Input
B. Input & Scan
C. Scan & Scanner
D. Scanner
Answer» B. Input & Scan
Discussion
169.

The readlines() method returns

A. str
B. a list of lines
C. a list of single characters
D. a list of integers
Answer» C. a list of single characters
Discussion
170.

To read the remaining lines of the file from a file object infile, we use

A. infile.read(2)
B. infile.read()
C. infile.readline()
D. infile.readlines()
Answer» E.
Discussion
171.

To read the next line of the file from a file object infile, we use

A. infile.read(2)
B. infile.read()
C. infile.readline()
D. infile.readlines()
Answer» D. infile.readlines()
Discussion
172.

What is the output? f = None for i in range (5): with open("data.txt", "w") as f: if i > 2: break print(f.closed)

A. True
B. False
C. None
D. Error
Answer» B. False
Discussion
173.

To read the entire remaining contents of the file as a string from a file object infile, we use

A. infile.read(2)
B. infile.read()
C. infile.readline()
D. infile.readlines()
Answer» C. infile.readline()
Discussion
174.

To read two characters from a file object infile, we use

A. infile.read(2)
B. infile.read()
C. infile.readline()
D. infile.readlines()
Answer» B. infile.read()
Discussion
175.

Which of the following statements are true?

A. When you open a file for reading, if the file does not exist, an error occurs
B. When you open a file for writing, if the file does not exist, a new file is created
C. When you open a file for writing, if the file exists, the existing file is overwritten with the new file
D. All of the mentioned
Answer» E.
Discussion
176.

To open a file c:\scores.txt for appending data, we use

A. outfile = open(“c:scores.txt”, “a”)
B. outfile = open(“c:scores.txt”, “rw”)
C. outfile = open(file = “c:scores.txt”, “w”)
D. outfile = open(file = “c:scores.txt”, “w”)
Answer» B. outfile = open(“c:scores.txt”, “rw”)
Discussion
177.

To open a file c:\scores.txt for writing, we use

A. outfile = open(“c:scores.txt”, “w”)
B. outfile = open(“c:scores.txt”, “w”)
C. outfile = open(file = “c:scores.txt”, “w”)
D. outfile = open(file = “c:scores.txt”, “w”)
Answer» C. outfile = open(file = “c:scores.txt”, “w”)
Discussion
178.

To open a file c:\scores.txt for reading, we use

A. infile = open(“c:scores.txt”, “r”)
B. infile = open(“c:scores.txt”, “r”)
C. infile = open(file = “c:scores.txt”, “r”)
D. infile = open(file = “c:scores.txt”, “r”)
Answer» C. infile = open(file = “c:scores.txt”, “r”)
Discussion
179.

What is the output of the function shown below? re.sub('Y', 'X', 'AAAAAA', count=2)

A. YXAAAA’
B. (‘YXAAAA’)
C. (‘AAAAAA’)
D. ‘AAAAAA’
Answer» E.
Discussion
180.

What is the output of the code shown below? m = re.search('a', 'The blue umbrella') m.re.pattern

A. {}
B. ‘The blue umbrella’
C. ‘a’
D. No output
Answer» D. No output
Discussion
181.

Which of the following lines of code will not show a match?

A. >>> re.match(‘ab*’, ‘a’)
B. >>> re.match(‘ab*’, ‘ab’)
C. >>> re.match(‘ab*’, ‘abb’)
D. >>> re.match(‘ab*’, ‘ba’)
Answer» E.
Discussion
182.

What is the output of the code shown below? a = re.compile('0-9') a.findall('3 trees')

A. []
B. [‘3’]
C. Error
D. [‘trees’]
Answer» D. [‘trees’]
Discussion
183.

Which of the following functions does not accept any argument?

A. re.purge
B. re.compile
C. re.findall
D. re.match
Answer» B. re.compile
Discussion
184.

Which of the following statements regarding the output of the function re.match is incorrect?

A. ‘pq*’ will match ‘pq’
B. ‘pq?’ matches ‘p’
C. p{4}, q’ does not match ‘pppq’
D. ‘pq+’ matches ‘p’
Answer» E.
Discussion
185.

Which of the following functions returns a dictionary mapping group names to group numbers?

A. re.compile.group
B. re.compile.groupindex
C. re.compile.index
D. re.compile.indexgroup
Answer» C. re.compile.index
Discussion
186.

What is the output of the code shown below? a=re.compile('[0-9]+') a.findall('7 apples and 3 mangoes')

A. [‘apples’ ‘and’ ‘mangoes’]
B. (7, 4)
C. [‘7’, ‘4’]
D. Error
Answer» D. Error
Discussion
187.

What is the output of the code shown below? re.split(r'\s+', 'Chrome is better than explorer', maxspilt=3)

A. [‘Chrome’, ‘is’, ‘better’, ‘than’, ‘explorer’]
B. [‘Chrome’, ‘is’, ‘better’, ‘than explorer’]
C. (‘Chrome’, ‘is’, ‘better’, ‘than explorer’)
D. Chrome is better’ ‘than explorer’
Answer» C. (‘Chrome’, ‘is’, ‘better’, ‘than explorer’)
Discussion
188.

In the functions re.search.start(group) and re.search.end(group), if the argument groups not specified, it defaults to __________

A. Zero
B. None
C. One
D. Error
Answer» B. None
Discussion
189.

What is the output of the following code? w = re.compile('[A-Za-z]+') w.findall('It will rain today')

A. It will rain today’
B. (‘It will rain today’)
C. [‘It will rain today’]
D. [‘It’, ‘will’, ‘rain’, ‘today’]
Answer» E.
Discussion
190.

What is the output of the code shown below? n = re.sub(r'\w+', 'Hello', 'Cats and dogs')

A. Hello Hello
B. Hello Hello Hello’
C. [‘Hello’, ‘Hello’, ‘Hello’]
D. (‘Hello’, ‘Hello’, ‘Hello’)
Answer» C. [‘Hello’, ‘Hello’, ‘Hello’]
Discussion
191.

What is the output of the code shown? re.subn('A', 'X', 'AAAAAA', count=4)

A. ‘XXXXAA, 4’
B. (‘AAAAAA’, 4)
C. (‘XXXXAA’, 4)
D. ‘AAAAAA, 4’
Answer» D. ‘AAAAAA, 4’
Discussion
192.

What is the output of the code shown below? import re s = 'abc123 xyz666 lmn-11 def77' re.sub(r'\b([a-z]+)(\d+)', r'\2\1:', s)

A. ‘123abc: 666xyz: lmn-11 77def:’
B. ‘77def: lmn-11: 666xyz: 123abc’
C. abc123:’, ‘xyz666:’, ‘lmn-11:’, ‘def77:’
D. ‘abc123: xyz666: lmn-11: def77’
Answer» B. ‘77def: lmn-11: 666xyz: 123abc’
Discussion
193.

What is the output of the code shown below? re.split(r'(a)(t)', 'Maths is a difficult subject')

A. [‘M a t h s i s a d i f f i c u l t s u b j e c t’]
B. [‘Maths’, ‘is’, ‘a’, ‘difficult’, ‘subject’]
C. [‘Maths’, ‘is’, ‘a’, ‘difficult’, ‘subject’]
D. [‘M’, ‘a’, ‘t’, ‘hs is a difficult subject’]
Answer» E.
Discussion
194.

What is the output of the code shown below? re.findall('good', 'good is good') re.findall('good', 'bad is good')

A. ‘good’, ‘good’] [‘good’]
B. (‘good’, ‘good’) (good)
C. ‘good’) (‘good’)
D. [‘good’] [‘good’]
Answer» B. (‘good’, ‘good’) (good)
Discussion
195.

The output of the code shown below is: re.split('mum', 'mumbai*', 1)

A. Error
B. [”, ‘bai*’]
C. [”, ‘bai’]
D. [”, ‘bai’]
Answer» C. [”, ‘bai’]
Discussion
196.

The difference between the functions re.sub and re.subn is that re.sub returns a _______________ whereas re.subn returns a __________________

A. string, list
B. list, tuple
C. string, tuple
D. tuple, list
Answer» D. tuple, list
Discussion
197.

Choose the option wherein the two choices do not refer to the same option.

A. re.I re.IGNORECASE
B. re.M re.MULTILINE
C. re.X re.VERBOSE
D. re.L re.LOWERCASE
Answer» E.
Discussion
198.

What is the output of the code shown below? re.fullmatch('hello', 'hello world')

A. No output
B. []
C. <_sre.SRE_Match object; span=(0, 5), match=hello>
D. Error
Answer» B. []
Discussion
199.

The output of the code shown below: re.escape('new**world')

A. ‘new world’
B. ‘new**world’
C. ‘**’
D. ‘new’, ‘*’, ‘*’, ‘world’
Answer» C. ‘**’
Discussion
200.

What is the output of the code shown below? re.sub('morning', 'evening', 'good morning')

A. ‘good evening’
B. ‘good’
C. morning’
D. evening’
Answer» B. ‘good’
Discussion