リアルPCAP-31-03試験PDFテストエンジン 練習テスト問題
Python Institute PCAP-31-03リアル2024年最新のブレーン問題集で模擬試験問題集
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質問 # 48
What is true about Object-Oriented Programming in Python? (Select two answers)
- A. inheritance is the relation between a superclass and a subclass
- B. an object is a recipe for a class
- C. the arrows on a class diagram are always directed from a superclass towards its subclass
- D. encapsulation allows you to protect some data from uncontrolled access
正解：A、D
質問 # 49
What is the expected behavior of the following code?
- A. it outputs 3
- B. the code is erroneous and it will not execute
- C. it outputs 1
- D. it outputs 2
正解：C
質問 # 50
Select the valid fun () invocations:
(select two answers)
def fun (a, b=0):
return a*b
- A. fun (a=0)
- B. fun(b=1)
- C. fun (1)
- D. fun(b=1, 0)
正解：A、C
質問 # 51
Which of the following expressions evaluate to True? (Select two answers)
- A. len ('' ' '') == 2
- B. ord (''0'') - ord (''9'') == 10
- C. len ( ' ' ' 12
34 ' ' ') == 4 - D. chr (ord('z') - 1 == 'Y'
正解：A、D
質問 # 52
There is a stream named s open for writing. What option will vou select to write a line to the stream''
- A. s.writeln("Hello")
- B. write(s, "Hello")
- C. s.write("Hello\n")
- D. s.writeline("Hello")
正解：C
質問 # 53
What is the expected output of the following code?
- A. False
- B. 0
- C. True
- D. None
正解：C
質問 # 54
If you want to transform a string into a list of words, what invocation would you use? (Select two answers) Expected output:
- A. split (s, "~ "~)
- B. s.split ("~ "~)
- C. s.split ()
- D. split (s)
正解：B、C
質問 # 55
What is true about Python class constructors? (Choose two.)
- A. there can be more than one constructor in a Python class
- B. the constructor must have at least one parameter
- C. the constructor must return a value other than None
- D. the constructor is a method named __init__
正解：B、D
質問 # 56
Assuming that the following piece of code has been executed successfully, which of the expressions evaluate to True? (Select two answers)
- A. B.VarA == 3
- B. obj_b.prop_a == 3
- C. isinstance(obj_c,A)
- D. hasattr(obj_b, 'prop_aa')
正解：C、D
質問 # 57
What is the expected output of the following code if there is no file named non existing_file inside the working directory?
- A. 1 2 3
- B. 1 3
- C. 2 2
- D. 2 2 3
正解：D
質問 # 58
What is the expected out of the following code of the file named zero_length_existing_file is a zero-length file located inside the working directory?
- A. an errno value corresponding to file not found
- B. 0
- C. 1
- D. 2
正解：B
質問 # 59
Assuming that the code below has been executed successfully, which of the following expressions evaluate to True? (Select two answers)
- A. len(Object.__diet__) == 1
- B. 'var' in Object.__diet__
- C. 'var1 in Class, diet
- D. 'prop' in Class.__diet
正解：A、B
質問 # 60
What is the expected behavior of the following code?
- A. the code is erroneous and it will not execute
- B. it outputs list assignment index out of range
- C. it outputs <class 'IndexError'>
- D. it outputs error
正解：B
質問 # 61
What is the expected behavior of the following code?
- A. it raises an exception
- B. it outputs 1
- C. it outputs 2
- D. it outputs 0
正解：A
質問 # 62
A variable stored separately in every object is called:
- A. an instance variable
- B. there are no such variables, all variables are shared among objects
- C. an object variable
- D. a class variable
正解：A
質問 # 63
With regards to the directory structure below, select the proper forms of the directives in order to import module_a. (Select two answers)
- A. import module_a
- B. import module_a from pypack
- C. from pypack import module_a
- D. import pypack.module_a
正解：C、D
質問 # 64
Which of the following snippets will execute without raising any unhandled exceptions? (Select answers) A)
B)
C)
D)
- A. Option D
- B. Option C
- C. Option A
- D. Option B
正解：A、B、D
質問 # 65
What is the expected behavior of the following code?
- A. it outputs 0
- B. it outputs 1
- C. it raises an exception
- D. it outputs 2
正解：A
質問 # 66
How many elements will the list1 list contain after execution of the following snippet?
- A. three
- B. one
- C. two
- D. zero
正解：C
質問 # 67
Which of the following literals reflect the value given as 3 4. 2 3 (select two answers)
- A. 3423e-2
- B. .3423e-2
- C. 3423e2
- D. .3423e2
正解：A、D
解説：
質問 # 68
What is true about Python packages? (Select two answers)
- A. a package contents can be stored and distributed as an mp3 file
- B. _pycache_is a folder that stores semi-completed Python modules
- C. a code designed to initialize a package's state should be placed inside a file named init.py
- D. the sys.path variable is a list of strings
正解：B、C
質問 # 69
Can a module run like regular code?
- A. yes, and it can differentiate its behavior between the regular launch and import
- B. it depends on the Python version
- C. no. it is not possible; a module can be imported, not run
- D. yes, but it cannot differentiate its behavior between the regular launch and import
正解：A
質問 # 70
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