Certified Associate in Python Programming v1.0
Question 1
What is the expected behavior of the following code?
- A. it outputs 6
- B. it raises an exception
- C. it outputs 1
- D. it outputs 3
Answer : D
Question 2
What is the expected output of the following code?
myli = range (-2,2)
m = list(filter(lambda x: True if abs(x) < 1 else False, myli)) print(len(m))
- A. 4
- B. 1
- C. an exception is raised
- D. 16
Answer : B
Question 3
What is true about lambda functions? (Choose two.)
- A. they are called anonymous functions
- B. they cannot return the None value as a result
- C. they must contain the return keyword
- D. they must have a non-zero number of parameters
Answer : AD
Question 4
What is the expected behavior of the following code?
x =3 % 1
y = 1 if x > 0 else 0
print(y)
- A. the code is erroneus and it will not execute
- B. it outputs 1
- C. it outputs 0
- D. it outputs -1
Answer : B
Question 5
What is the expected output of the following code if the file named zero_length_existing_file is a zero-length file located inside the working directory?
- A. 2
- B. -1
- C. an errno value corresponding to file not found
- D. 0
Answer : D
Question 6
What is the expected output of the following code?
- A. an exception is raised
- B. 1
- C. 0
- D. -1
Answer : C
Question 7
What is the expected behavior of the following code?
my_list = [i for i in range(5)]
m = [my_list[i] for i in range(4, 0, -1) if my_list[i] % 2 != 0] print(m)
- A. the code is erroneus and it will not execute
- B. it outputs [4, 2, 0]
- C. it outputs [3, 1]
- D. it outputs [1, 3]
Answer : B
Question 8
Assuming that the following code has been executed successfully, select the expressions which evaluate to True (Choose two.)
- A. a is not None
- B. a() == 4
- C. a != b
- D. b() == 4
Answer : AD
Question 9
Which of the following statements are true? (Choose two.)
- A. if invoking open() fails, an exception is raised
- B. instd, outstd, errstd are the names of pre-opened streams
- C. open() requires a second argument
- D. open() is a function which returns an object that represents a physical file
Answer : AC
Question 10
What is the expected output of the following code if there is no file named non_existing_file inside the working directory?
- A. 2 2 3
- B. 2 2
- C. 1 3
- D. 1 2 2
Answer : B
Question 11
Assuming that the math module has been successfully imported, which of the following expressions evaluate to True? (Choose two.)
- A. math.ceil(2.5) == math.trunc(2.5)
- B. math.ceil(2.5) < math.floor(2.5)
- C. math.floor(2.5) == math.trunc(2.5)
- D. math.hypot(3,4) == math.sqrt(25)
Answer : CD
Question 12
With regards to the directory structure below, select the proper forms of the directives in order to import module_b. (Choose two.)
- A. import module_b
- B. import pypack.upper.module_b
- C. from pypack.upper import module_b
- D. import upper.module_b
Answer : BC
Question 13
What is the expected output of the following code?
import sys
b1 type (dir(sys)) is str
b2 type (sys.path[-1]) is str
print (b1 and b2)
- A. True
- B. False
- C. 0
- D. None
Answer : B
Question 14
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 2
- D. it outputs 1
Answer : B
Question 15
What is the expected behavior of the following code?
- A. the code is erroneous and it will not execute
- B. it outputs 1
- C. it outputs 3
- D. it outputs 2
Answer : D