Certified Associate in Python Programming Exam PCAP-31-03 Study Guide Updated [2022]

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1. A Python module named pymod, py contains a function named pyfun ( ).

Which of the following snippets will let you invoke the function? (Select two answers)

From pymod import ‘ Pymod.pyfun ( )

Import pymod Pymod. Pyfun ( )

Import pyfun from pymod Pyfun ( )

From pymod import pyfun Pyfun ( )

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2. What is the expected behavior of the following code?

it outputs 2

the code is erroneous and it will not execute

it outputs 1

it outputs 3

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

1

0

2

the variable becomes unavailable

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4. What is the expected behavior of the following code?

it outputs 1

it outputs 0

it raises an exception

it outputs 2

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5. What can you deduce from the following statement? (Select two answers)

str = open('file.txt', "rt")

str is a string read in from the file named file.txt

a newlina character translation will be performed during the reads

if file. txt does not exist, it will be created

the opened file cannot be written with the use of the str variable

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6. What is the expected output of the following snippet?

1

4

2

3

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7. What is the expected behavior of the following code?

it outputs [1, 3]

the code is erroneous and it will not execute

it outputs [3, 1]

it outputs [4, 2, 0]

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8. Assuming that the following inheritance set is in force, which of the following classes are declared properly? (Select two answers)

class Class_4 (D, A) : pass

class Class_1(C,D): pass

class Class_3(A,C): pass

class Class_2(B,D): pass

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9. Which of the following statement are true? (Select two answers)

closing an open file is performed by the closefile ( ) function

the second open ( ) argument describes the open mode and defaults to ‘w’

if open ( ) ‘s second argument is ‘r’ the file must exist or open will fail

if open ( )’s second argument is ‘w’ and the invocation succeeds, the previous file’s content is lost

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10. What is the expected output of the following code?

3

5

4

an exception is raised

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11. Which of the following invocations are valid? (Select two answers)

sorted ("python'')

"python" .sort ( )

sort" ("python")

"python' ,find (")

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12. With regards to the directory structure below, select the proper forms of the directives in order to import module_a. (Select two answers)

import pypack.module_a

import module_a from pypack

import module_a

from pypack import module_a

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13. Assuming that the V variable holds an integer value to 2, which of the following operators should be used instead of OPER to make the expression equal to 1?

V OPER 1 -

<<<

>>>

>>

<<

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14. 1.Which of the following expression evaluate to True? (Select two answers)

len(''•) == 1

len(""" """) == o

chr(ordCA') + 1) == 'B'

ord("Z") - ord("z") -- ord("0")

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15. The following expression

1+-2

is:

equal to 1

invalid

equal to 2

equal to -1

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16. What is a true about python class constructors? (Select two answers)

the constructor must have at least one parameter

the constructor must return a value other than None

the constructor is a method named_init_

there can the more than one constructor in a Python class.

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17. A variable stored separately in every object is called:

there are no such variables, all variables are shared among objects

a class variable

an object variable

an instance variable

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18. What is the expected behavior of the following code?

it outputs 'None'

it outputs 3

it raises an exception

it outputs 0

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