PCAP-31-03 PDF Pass Leader, PCAP-31-03 Latest Real Test
Valid PCAP-31-03 Test Answers & PCAP-31-03 Exam PDF
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Topics of PCAP - Certified Associate in Python Programming (PCAP-31-03) Exam
The syllabus for the PCAP-31-03 dumps is listed below in detail of each section and their topics:
1. Control and Evaluations (25%)
Objectives covered by this section:
- assignments and shortcut operators
- simple strings: constructing, assigning, indexing, slicing comparing, immutability
- basic concepts: interpreting and the interpreter, compilation and the compiler, language elements, lexis, syntax and semantics, Python keywords, instructions, indenting
- string operators: * +
- operators: unary and binary, priorities and binding
- conditional statements: if, if-else, if-elif, if-elif-else
- Boolean operators: not and or
- accuracy of floating-point numbers
- literals: Boolean, integer, floating-point numbers, scientific notation, strings
- basic input and output: input(), print(), int(), float(), str() functions
- numeric operators: * / % // + â
- expanding loops: while-else, for-else, nesting loops, and conditional statements
- the pass instruction
- formatting print() output with end= and sep= arguments
- controlling loop execution: break, continue
- building loops: while, for, range(), in, iterating through sequences
- bitwise operators: ~ & ^ | « »
- relational operators (== != > >= < <= ), building complex Boolean expressions
- simple lists: constructing vectors, indexing, and slicing, the len() function
2. Data Aggregates (25%)
Objectives covered by this section:
- lists in detail: indexing, slicing, basic methods (append(), insert(), index()) and functions (len(), sorted(), etc.), del instruction, iterating lists with the for loop, initializing, in and not in operators, list comprehension, copying and cloning
- strings in detail: ASCII, UNICODE, UTF-8, immutability, escaping using the \ character, quotes and apostrophes inside strings, multiline strings, copying vs. cloning, advanced slicing, string vs. string, string vs. non-string, basic string methods (upper(), lower(), isxxx(), capitalize(), split(), join(), etc.) and functions (len(), chr(), ord()), escape characters
- lists in lists: matrices and cubes
- tuples vs. lists: similarities and differences, lists inside tuples and tuples inside lists
- tuples: indexing, slicing, building, immutability
- dictionaries: building, indexing, adding and removing keys, iterating through dictionaries as well as their keys and values, checking key existence, keys(), items(), and values() methods
3. Functions and Modules (25%)
Objectives covered by this section:
- import directives, qualifying entities with module names, initializing modules
- writing and using modules, the name variable
- name scopes, name hiding (shadowing), the global keyword
- lambda functions, defining and using
- Python hashbangs, using multiline strings as module documentation
- parameters vs. arguments, positional keyword and mixed argument passing, default parameter values
- constructing and distributing packages, packages vs. directories, the role of the init.py file
- hiding module entities
- map(), filter(), reduce(), reversed(), sorted() functions and the sort() method
- return and yield keywords, returning results, the None keyword, recursion
- the if operator
- converting generator objects into lists using the list() function
- pyc file creation and usage
- defining and invoking your functions and generators
4. Classes, Objects, and Exceptions (25%)
Objectives covered by this section:
- invoking methods, passing and using the self-argument/parameter
- assertions
- the anatomy of an exception object
- writing and using constructors
- defining your classes, superclasses, subclasses, inheritance, searching for missing class components, creating objects
- single inheritance vs. multiple inheritances
- the role of the str method
- class attributes: class variables and instance variables, defining, adding, and removing attributes, explicit constructor invocation
- exceptions hierarchy, assigning more than one exception to one except branch
- introspection: dict, name, module, bases properties, examining class/object structure
- the init method
- input/output basics: opening files with the open() function, stream objects, binary vs. text files, newline character translation, reading and writing files, byte array objects
- using predefined exceptions and defining your ones
- the try-except-else-finally block, the raise statement, the except-as variant
- name mangling
- read(), readinto(), readline(), write(), close() methods
- hasattr(), type(), issubclass(), isinstance(), super() functions
- class methods: defining and using the self-parameter meaning and usage
- adding your exceptions to an existing hierarchy
- inheritance and overriding, finding class/object components
NEW QUESTION 51
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 pypack.module_a
- B. from pypack import module_a
- C. import module_a
- D. import module_a from pypack
Answer: A,B
NEW QUESTION 52
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
Answer: A
NEW QUESTION 53
What is true about the following snippet? (Select two answers)
- A. the code will raise an unhandled exception
- B. the siring I feel fine 'will be seen
- C. the string what a pity will be seen
- D. the string it's nice to see you will be seen
Answer: B,C
NEW QUESTION 54
What is the expected behavior of the following code?
- A. it outputs [0, 1, 2, 3, 4]
- B. the code is erroneus and it will not execute
- C. it outputs [4, 2]
- D. it outputs [2, 4]
Answer: C
NEW QUESTION 55
Which of the following lines of code will work flawlessly when put independently inside the add_new () method in order to make the snippet's output equal to [0, 1, 21 ? (Select two answers)
- A. self.queue.append(self.get last() +1)
- B. queue.append(self.get last () + 1)
- C. self.queue.append(self.queue[+1]
- D. self.queue.append(get_Iast() + 1)
Answer: A
NEW QUESTION 56
Which of the following expressions evaluate to True? (Select two answers)
- A. 'deb' not in 'abcde' [::-1]
- B. str(1-1) in '0123456739'[:2]
- C. 'phd' in 'alpha'
- D. 'True' not in 'False'
Answer: A,D
NEW QUESTION 57
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. len(Object.__diet__) == 1
- C. 'prop' in Class.__diet
- D. 'var' in Object.__diet__
Answer: B,D
NEW QUESTION 58
Assuming that the code below has been executed successfully, which of the following expressions will always evaluate to True? (Select two answers) import random v1 = random. random() v2 = random. random()
- A. len(random.sample([1,2,3],2)) > 2
- B. v1 >= 1
- C. v1 == v2
- D. random.choice([1,2,3]) >=1
Answer: B,D
NEW QUESTION 59
What is the expected behavior of the following code?
- A. it outputs False
- B. it outputs nothing
- C. it raises an exception
- D. it outputs True
Answer: D
NEW QUESTION 60
Assuming that the following code has been executed successfully, selected the expression which evaluate to True (Select two answers) Def f (x, y); Nom, denom = x, y def g ( ) ; Return nom / denom A = f (1, 2) B = f (3, 4)
- A. a is not None
- B. b ( ) == 4
- C. a ! = b
- D. a ( ) == 4
Answer: A,C
NEW QUESTION 61
Assuming that the following snippet has been successfully executed, which of the equations are True? (Select two answers)
- A. len(a) == len (b)
- B. a[0] = b[0]
- C. a[0] + 1 == b[0]
- D. b[0] fe- 1 == a[0]
Answer: A,B
Explanation:
NEW QUESTION 62
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. len(Object.__diet__) == 1
- C. 'prop' in Class.__diet
- D. 'var' in Object.__diet__
Answer: B,D
NEW QUESTION 63
You need data which can act as a simple telephone directory. You can obtain it with the following clauses (choose two relevant variants; assume that no other items have been created before)
- A. dir={'Mom':5551234567, 'Dad':5557654321>
- B. dir={'Mom':'5551234567', * Dad':'5557654321'}
- C. dir={Mom:'5551234567', Dad:'5557654321'}
- D. dir={Mom:5551234567, Dad:5557654321}
Answer: C,D
NEW QUESTION 64
How many elements will the list1 list contain after execution of the following snippet?
- A. one
- B. zero
- C. two
- D. three
Answer: C
NEW QUESTION 65
Is it possible to safely check if a class/object has a certain attribute?
- A. yes, by using the hassattr ( ) function
- B. no, it is not possible
- C. yes, by using the hasattr ( ) method
- D. yes, by using the hasattr attribute
Answer: C
NEW QUESTION 66
Which of the following lines of code will work flawlessly when put independently inside the add_new () method in order to make the snippet's output equal to [0, 1, 1] ? (Select two answers)
- A. put self.store(1])
- B. self .put (self.store[1])
- C. self .put self.get () [-1])
- D. self put stire(1])
Answer: B,D
NEW QUESTION 67
What is the expected output of the following code?
- A. an exception is raised
- B. 0
- C. 1
- D. 2
Answer: D
NEW QUESTION 68
Which of the following snippets will execute without raising any unhandled exceptions? (Select answers) A)
B)
C)
D)
- A. Option B
- B. Option A
- C. Option D
- D. Option C
Answer: A,C,D
NEW QUESTION 69
Which of the following invocations are valid? (Select two answers)
- A. "python".index("th")
- B. "python".sort ()
- C. sorted("python")
- D. rfind("python","r")
Answer: A,C
NEW QUESTION 70
A compiler is a program designed to (select two answers)
- A. rearrange the source code to make it clearer
- B. translate the source code into machine code
- C. execute the source code
- D. check the source code in order to see if its correct
Answer: B,D
NEW QUESTION 71
What is true about the following snippet? (Select two answers)
- A. the code will raise an unhandled exception
- B. the siring I feel fine 'will be seen
- C. the string what a pity will be seen
- D. thestring it's niceto see youwill be seen
Answer: B,C
NEW QUESTION 72
Which of the following statement are true? (Select two answers)
- A. if open ( ) 's second argument is 'r' the file must exist or open will fail
- B. the second open ( ) argument describes the open mode and defaults to 'w'
- C. if open ( )'s second argument is 'w' and the invocation succeeds, the previous file's content is lost
- D. closing an open file is performed by the closefile ( ) function
Answer: A,C
NEW QUESTION 73
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