Explore topic-wise MCQs in Computer Science Engineering (CSE).

This section includes 477 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Science Engineering (CSE) knowledge and support exam preparation. Choose a topic below to get started.

101.

)) type(g)

A. class <’loop’>
B. class <‘iteration’>
C. class <’range’>
D. class <’generator’>
Answer» E.
Discussion
102.

Which of the following is not an exception handling keyword in Python?

A. try
B. except
C. accept
D. finally
Answer» D. finally
Discussion
103.

What happens when ‘1’ == 1 is executed?

A. we get a true
B. we get a false
C. an typeerror occurs
D. a valueerror occurs
Answer» C. an typeerror occurs
Discussion
104.

When is the finally block executed?

A. when there is no exception
B. when there is an exception
C. only if some condition that has been specified is satisfied
D. always
Answer» E.
Discussion
105.

Which function overloads the // operator?

A.     div    ()
B.     ceildiv    ()
C.     floordiv    ()
D.     truediv    ()
Answer» D.     truediv    ()
Discussion
106.

Which function overloads the >> operator?

A.     more    ()
B.     gt    ()
C.     ge    ()
D. none of the mentioned
Answer» E.
Discussion
107.

How many except statements can a try- except block have?

A. zero
B. one
C. more than one
D. more than zero
Answer» E.
Discussion
108.

Which operator is overloaded by     lg    ()?

A. <
B. >
C. !=
D. none of the mentioned
Answer» E.
Discussion
109.

Which function overloads the == operator?

A.     eq    ()
B.     equ    ()
C.     isequal    ()
D. none of the mentioned
Answer» B.     equ    ()
Discussion
110.

Which function overloads the + operator?

A.     add    ()
B.     plus    ()
C.     sum    ()
D. none of the mentioned
Answer» B.     plus    ()
Discussion
111.

What happens if no arguments are passed to the seek function?

A. file position is set to the start of file
B. file position is set to the end of file
C. file position remains unchanged
D. error
Answer» E.
Discussion
112.

How do you change the file position to an offset value from the start?

A. fp.seek(offset, 0)
B. fp.seek(offset, 1)
C. fp.seek(offset, 2)
D. none of the mentioned
Answer» B. fp.seek(offset, 1)
Discussion
113.

How do you rename a file?

A. fp.name = ‘new_name.txt’
B. os.rename(existing_name, new_name)
C. os.rename(fp, new_name)
D. os.set_name(existing_name, new_name)
Answer» C. os.rename(fp, new_name)
Discussion
114.

How do you delete a file?

A. del(fp)
B. fp.delete()
C. os.remove(‘file’)
D. os.delete(‘file’)
Answer» D. os.delete(‘file’)
Discussion
115.

How do you get the current position within the file?

A. fp.seek()
B. fp.tell()
C. fp.loc
D. fp.pos
Answer» C. fp.loc
Discussion
116.

How do you close a file object (fp)?

A. close(fp)
B. fclose(fp)
C. fp.close()
D. fp.    close    ()
Answer» D. fp.    close    ()
Discussion
117.

How do you get the name of a file from a file object (fp)?

A. fp.name
B. fp.file(name)
C. self.    name    (fp)
D. fp.    name    ()
Answer» B. fp.file(name)
Discussion
118.

What is the difference between r+ and w+ modes?

A. no difference
B. in r+ the pointer is initially placed at the beginning of the file and the pointer is at the end for w+
C. in w+ the pointer is initially placed at the beginning of the file and the pointer is at the end for r+
D. depends on the operating system
Answer» C. in w+ the pointer is initially placed at the beginning of the file and the pointer is at the end for r+
Discussion
119.

Which of the following are the modes of both writing and reading in binary format in file?

A. wb+
B. w
C. wb
D. w+
Answer» B. w
Discussion
120.

Which function is used to close a file in python?

A. close()
B. stop()
C. end()
D. closefile()
Answer» B. stop()
Discussion
121.

Which function is used to write a list of string in a file?

A. writeline()
B. writelines()
C. writestatement()
D. writefullline()
Answer» B. writelines()
Discussion
122.

Is it possible to create a text file in python?

A. yes
B. no
C. machine dependent
D. all of the mentioned
Answer» B. no
Discussion
123.

Which function is used to write all the characters?

A. write()
B. writecharacters()
C. writeall()
D. writechar()
Answer» B. writecharacters()
Discussion
124.

Which function is used to read single line from file?

A. readline()
B. readlines()
C. readstatement()
D. readfullline()
Answer» C. readstatement()
Discussion
125.

Which function is used to read all the characters?

A. read()
B. readcharacters()
C. readall()
D. readchar()
Answer» B. readcharacters()
Discussion
126.

What is the use of “a” in file handling?

A. read
B. write
C. append
D. none of the mentioned
Answer» D. none of the mentioned
Discussion
127.

What is the use of “w” in file handling?

A. read
B. write
C. append
D. none of the mentioned
Answer» C. append
Discussion
128.

In file handling, what does this terms means “r, a”?

A. read, append
B. append, read
C. write, append
D. none of the mentioned
Answer» B. append, read
Discussion
129.

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
130.

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
131.

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
132.

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
133.

Which of the following mode will refer to binary data?

A. r
B. w
C. +
D. b
Answer» E.
Discussion
134.

sys.stdout.write('Python\n')

A. compilation error
B. runtime error
C. hello python
D. hello python
Answer» E.
Discussion
135.

print 'Your name is:', name

A. sanfoundry
B. sanfoundry, sanfoundry
C. san
D. none of the mentioned
Answer» B. sanfoundry, sanfoundry
Discussion
136.

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
137.

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
138.

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
139.

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
140.

fo.close()

A. compilation error
B. syntax error
C. displays output
D. none of the mentioned
Answer» D. none of the mentioned
Discussion
141.

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
142.

Which one of the following is not attributes of file?

A. closed
B. softspace
C. rename
D. mode
Answer» D. mode
Discussion
143.

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
144.

print(f.closed)

A. true
B. false
C. none
D. error
Answer» B. false
Discussion
145.

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
146.

1 TEXT FILES, READING AND WRITING FILES, FORMAT OPERATOR

A. infile.read(2)
B. infile.read()
C. infile.readline()
D. infile.readlines()
Answer» B. infile.read()
Discussion
147.

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
148.

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
149.

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
150.

If b is a dictionary, what does any(b) do?

A. returns true if any key of the dictionary is true
B. returns false if dictionary is empty
C. returns true if all keys of the dictionary are true
D. method any() doesn’t exist for dictionary
Answer» B. returns false if dictionary is empty
Discussion