Which of the following options can be used to read the first line of a text file data.txt?

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Question:
Which of the following options can be used to read the first line of a text file data.txt?

1.f = open(‘data.txt’); f.read()

2. f = open(‘data.txt’,’r’); f.read(n)

3.myfile = open(‘data.txt’); f.readline()

4. f = open(‘data.txt’); f.readlines()

More MCQS Questions and answers

  1. Which statement will read 5 characters from a file(file object ‘f’)?
  2. A _____ file consists of human readable characters.
  3. Almost all the files in our computer stored as _______ File
  4. Fill in the blank import pickle f=open("data.dat",'rb') d=_____________________.load(f) f.close()
  5. open( ) function takes ____ as parameter.
  6. Ravi opened the file myfile.txt in append mode. In this file the file object/file handle will be at the ___
  7. Refer to the above code (Q 47) : Write the output of Third Print Statement
  8. The syntax of seek() is: file_object.seek(offset [, reference_point]) What is reference_point indicate?
  9. When we open file in append mode the file pointer is at the _________ of the file.
  10. Which function is used to write data in binary mode?
  11. Which of the following is an invalid mode of file opening?
  12. Which statement will open file “data.txt” in append mode?
  13. Write the output of the following: >>> f = open("test.txt","w") >>> f.close() >>> f.closed
  14. A _____________ is a named location on a secondary storage media where data are permanently stored for later access
  15. Default EOL character in text file is _____
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  17. EOF stands for ___________
  18. f.seek(10,0) will move 10 bytes forward from beginning of file.
  19. File in python is treated as sequence of ________________
  20. Fill in the blanks in the following code of writing data in binary files. Choose the answer for statement 1 import ___________ # Statement 1 rec = [ ] while True: rn = int(input("Enter")) nm = input("Enter") temp = [rn, nm] rec.append(temp) ch = input("Enter choice (Y/N)") if ch.upper == "N": break f = open("stud.dat", "____________") #statement 2 __________ .dump(rec, f) #statement 3 _______.close( ) # statement 4
  21. Identify the correct statement to open a file:
  22. Identify the invalid mode from the following.
  23. In the given statement, the file myfile.txt will open in _______________ mode. myObject=open(“myfile.txt”, “a+”)
  24. In which of the following data store permanently?
  25. Let the file pointer is at the end of 3rd line in a text file named “data.txt”. Which of the following option can be used to read all the remaining lines?
  26. open( ) function returns a file object called _____
  27. pdf and .doc are examples of __________ files.
  28. Ram opened a file in a certain mode. After opening the file, he forgot the mode. The interesting facts about that mode are ” If the file doesn’t exist, then a new file will be created” and “After opening file in that mode the file handle will be at the end of the file” Help him to identify the correct mode.
  29. Ravi opened a file in a certain mode. After opening the file, he forgot the mode. One interesting fact about that mode is ” If the file already exists, all the contents will be overwritten”. Help him to identify the correct mode.
  30. Ravi opened a file in python using open( ) function but forgot to specify the mode. In which mode the file will open?
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  32. readlines( ) function returns all the words of the file in the form of List. (T/F)
  33. readlines() method return _________
  34. Refer to the above code (Q 38)and choose the option for statement 3
  35. Refer to the above code (Q 38)and choose the option for statement 4.
  36. Refer to the above code (Q 47) : Write the output of Fourth Print Statement
  37. Refer to the above code (Q 47) : Write the output of Second Print Statement
  38. Refer to the above code and choose the option for statement2.
  39. The syntax of seek() is:file_object.seek(offset [, reference_point] What is the default value of reference_point
  40. The syntax of seek() is:file_object.seek(offset [, reference_point]) What all values can be given as a reference point?
  41. What error is returned by the following statement if the file does not exist? f=open("A.txt")
  42. What is ‘f’ in the following statement? f=open("Data.txt" , "r")
  43. What is full form of CSV
  44. When we open file in write mode the file pointer is at the _______ of the file.
  45. Which function is used to force transfer of data from buffer to file?
  46. Which function is used to read data from Text File?
  47. Which function open file in python?
  48. Which mode create new file if the file does not exist?
  49. Which module to be imported to make the following line functional? sys.stdout.write("ABC")
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  56. Which of the following function is used to close the file?
  57. Which of the following function takes two arguments?
  58. Which of the following is invalid mode of opening file?
  59. Which of the following is the valid way to open the file?
  60. Which of the following mode will create a new file, if the file does not exist?
  61. Which of the following mode will open the file in binary and read-only mode.
  62. Which of the following mode will opens the file in read, write and binary mode?
  63. Which of the following options can be used to read the first line of a text file data.txt?
  64. Which of the following will read entire content of file(file object ‘f’)?
  65. Which statement will move file pointer 10 bytes backward from current position.
  66. Which statement will return error? import pickle f=open("data.dat",'rb') d=pickle.load(f) f.end()
  67. Which statement will return one line from a file (file object is ‘f’)?
  68. Which symbol is used for append mode?
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  70. Write the output of the following: >>> f = open("test.txt","w") >>> f.closed
  71. Write the output of the following: >>> f = open("test.txt","w") >>> f.mode
  72. Write the output of the following: >>> f = open("test.txt","w") >>> f.name
  73. _______ function returns the current position of file pointer. a.
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