PCAP-31-03 Practice Exam and Study Guides - Verified By DumpsFree Updated 155 Questions
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NEW QUESTION # 36
What is the expected behavior of the following code?
- A. it outputs 2
- B. it outputs 1
- C. the code is erroneous and it will not execute
- D. it outputs 3
Answer: D
NEW QUESTION # 37
What is the expected output of the following code?
- A. an exception is raised
- B. 0
- C. 1
- D. 2
Answer: B
NEW QUESTION # 38
The following class hierarchy is given. What is the expected out of the code?
- A. BC
- B. AA
- C. CC
- D. BB
Answer: A
NEW QUESTION # 39
The following class definition is given. We want the show () method to invoke the get () method, and then output the value the get () method returns. Which of the invocations should be used instead of XXX?
- A. print (self.get (val))
- B. print (get())
- C. print (get(self))
- D. print (self.get())
Answer: D
NEW QUESTION # 40
Which of the equations are True? (Select two answers)
- A. chr (chr (x)) = = x
- B. ord (ord (x)) = = x
- C. ord (chr (x)) = = x
- D. chr (ord (x)) = = x
Answer: C,D
Explanation:
https://docs.python.org/3/library/functions.html#chr
https://docs.python.org/3/library/functions.html#ord
NEW QUESTION # 41
What is the expected behavior of the following snippet?
It will:
- A. print 1
- B. print 0 , [1]
- C. print [1J
- D. cause a runtime exception
Answer: D
Explanation:
NEW QUESTION # 42
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, "~")
Answer: A,C
NEW QUESTION # 43
Which of the following words can be used as a variable name? (Select two valid names)
- A. For
- B. true
- C. for
- D. True
Answer: A,B
NEW QUESTION # 44
What is the expected output of the following code?
- A. an exception is raised
- B. 0
- C. 1
- D. 2
Answer: C
NEW QUESTION # 45
What is the expected behavior of the following code?
- A. it outputs 2
- B. it outputs 1
- C. it outputs 0
- D. it raises an exception
Answer: C
NEW QUESTION # 46
There is a stream named s open for writing. What option will you select to write a line to the stream''
- A. s.writeln("Hello")
- B. s.writeline("Hello")
- C. write(s, "Hello")
- D. s.write("Hello\n")
Answer: D
Explanation:
Reference: https://en.wikibooks.org/wiki/Python_Programming/Input_and_Output
NEW QUESTION # 47
Assuming that the snippet below has been executed successfully, which of the following expressions will evaluate to True? (Select two answers) string = 'python' [::2] string = string[-1] + string[-2]
- A. string[0] == 'o'
- B. string[0] == string[-1]
- C. len (string] == 3
- D. string is None
Answer: A
NEW QUESTION # 48
What will the value of the i variable be when the following loop finishes its execution?
- A. 0
- B. 1
- C. the variable becomes unavailable
- D. 2
Answer: A
Explanation:
Pass only means there are no statements to execute it does not means the variable is unavailable. Try a Print statement Print(i) after the For Loop and there is your result.
NEW QUESTION # 49
Which of the following statements are true? (Select two answers)
- A. an escape sequence can be recognized by the # sign put in front of it.
- B. ASCII is the name of a character coding standard
- C. a code point is a point inside the code when execution stops immediately
- D. UTF-8 is one of the ways of representing UNICODE code points.
Answer: B,C
NEW QUESTION # 50
Can a module run Eke regular code?
- A. yes, and it can differentiate its behavior between the regular launch and import
- B. yes, but it cannot differentiate its behavior between the regular launch and import
- C. it depends on the Python version
- D. no. it is not possible; a module can be imported, not run
Answer: A
NEW QUESTION # 51
Assuming that the code below has been executed successfully, which of the following expressions evaluate to True? (Select two answers)
- A. 'var1 in Class, diet
- B. 'var' in Object.__diet__
- C. 'prop' in Class.__diet
- D. len(Object.__diet__) == 1
Answer: B,D
NEW QUESTION # 52
You are going to read 16 bytes from a binary file into a bytearray called dat a. Which lines would you use? (Select two answers)
- A. data = bytearray (16) bf.readinto (data)
- B. bf. readinto (data = bytearray (16))
- C. data = bytearray (binfile.read (16))
- D. data = binfile.read (bytearray (16))
Answer: A,C
Explanation:
https://docs.python.org/3/library/functions.html#func-bytearray
https://docs.python.org/3/library/io.html
NEW QUESTION # 53
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