Which of the following functions can be used to read data from a file – InterviewSolution

1.	Which of the following functions can be used to read data from a file using a file descriptor?(a) os.reader()(b) os.read()(c) os.quick_read()(d) os.scan()
Answer» The correct choice is (b) os.read() For explanation: None of the other functions exist.

Discussion

No Comment Found

Related InterviewSolutions

To return the length of string s what command do we execute?(a) s.__len__()(b) len(s)(c) size(s)(d) s.size()
The function random.randint(4) can return only one of the following values. Which?(a) 4(b) 3.4(c) error(d) 5
What does math.sqrt(X, Y) do?(a) calculate the Xth root of Y(b) calculate the Yth root of X(c) error(d) return a tuple with the square root of X and Y
What is the range of values that random.random() can return?(a) [0.0, 1.0](b) (0.0, 1.0](c) (0.0, 1.0)(d) [0.0, 1.0)
What is the value of x if x = math.sqrt(4)?(a) 2(b) 2.0(c) (2, -2)(d) (2.0, -2.0)
What is math.factorial(4.0)?(a) 24(b) 1(c) error(d) none of the mentioned
What is math.floor(0o10)?(a) 8(b) 10(c) 0(d) 9
What is the return value of trunc()?(a) int(b) bool(c) float(d) None
What will be the output of print(math.factorial(4.5))?(a) 24(b) 120(c) error(d) 24.0
What is the output of print(math.trunc(‘3.1’))?(a) 3(b) 3.0(c) error(d) none of the mentioned