PCAP-31-03 Online Practice Questions and Answers

The following class hierarchy is given. What is the expected out of the code?

A. BB

B. CC

C. AA

D. BC

What will be the value of the i variable when the while e loop finishes its execution?

A. 1

B. 0

C. 2

D. the variable becomes unavailable

What is the expected output of the following snippet?

A. 3

B. 1

C. 2

D. the code is erroneous

Which of the following expressions evaluate to True? (Select two answers)

A. 11 == '011'

B. 3 * 'a' < 'a' * 2

C. 'abc' .upper () < 'abc'

D. '1' + '2' * 2 !=2 '12'

If you want to transform a string into a list of words, what invocation would you use? (Select two answers)

Expected output:

A. s.split ()

B. split (s, "~ "~)

C. s.split ("~ "~)

D. split (s)

Is it possible to safely check if a class/object has a certain attribute?

A. yes, by using the hasattr attribute

B. yes, by using the hasattr ( ) method

C. yes, by using the hassattr ( ) function

D. no, it is not possible

Which of the following lambda definitions are correct? (Select two answers)

A. lanbda x, y; return x\\y - x%y

B. lambda x, y: x//y - x%y

C. lambda (x, y = x\\y x%y

D. lambda x, y: (x, y)

Which of the following statements are true? (Select two answers)

A. open () is a function which returns an int that represents a physical file handle

B. the second open () argument is optional

C. instd, outstd, errstd are the names of pre-opened streams

D. if invoking open () fails, the value None is returned

Assuming that the snippet below has been executed successfully, which of the following expressions will evaluate to True? (Select two answers) string = 'SKY' (:: -1) string = string (-1)

A. string is None

B. string (0) == string (-1

C. string (0) == 'Y'

D. len (string) == 1

What is the expected output of the following code?

A. abcef

B. The program will cause a runtime exception error

C. acdef

D. abdef