Python3 Engineer Certification Basic Exam-Notes and Problem Trends-

Python3 Engineer Basic Certification Exam

■ Exam details

Examination date: All year round (check the examination venue as it is also held at computer schools) Application URL: http://cbt.odyssey-com.co.jp/pythonic-exam.html Examination fee: 10,000 yen (excluding tax)

■ Exam outline

Exam name: Python3 engineer certification basic exam (English name: Python 3 Certified Engineer Basic Examination) Qualification name: Python3 engineer certification basic examination passer (English name: Python 3 Basic Grammar Certification) Summary: Exams that ask the basics of grammar Number of questions: 40 questions (all selection questions: 1 question 25 points calculation) Test time: 60 minutes Pass line: 70% correct answer rate Scope of questions: O'Reilly Japan "Python Tutorial 3rd Edition" and general knowledge

■ Practice test URL

https://diver.diveintocode.jp/exam

My programming level

I'm a beginner.

■Progato ・ Ruby ・ Python

■Kaggle ・ Only touch

■Rails tutorial ・ Completed up to the final 14 chapters

Mock test content

From here, I will write the answer based on the question.

Question 1: Choose from the options to show all packages installed in your virtual environment.

Correct answer: pip list

pip is used for package management. The main thing you can do is package ・ Installation ·upgrade ・ Remove There are various other commands, some of which are summarized in the table below.

Question 2: Select the output result when the following program is executed.

Correct answer: 0 1 2

num_list  = [2, 4, 6, 4, 4, 2, 6]
for i in range(num_list.count(4)):
    print(i, end=' ')

count is a method to count the number of targets. By repeating with for and entering end ='' Expressed as 0 1 2.

Question 3: Select the correct output result when the following program is executed.

Correct answer: Noro

def dive_into_code(teacher, *mentor):
    print(teacher)

dive_into_code('Noro', 'Nakao', 'Miyaoka')

The erratic positional arguments ('Nakao','Miyaoka') are collectively assigned to (* menter).

Similar problems

dic = [
    ['Noro', 'Nakao', 'Miyaoka'],
    ['Kimura', 'Miyashita', 'Shibata'],
    ['Matsumoto', 'Tanaka', 'Ivan'],
]

print(list(zip(*dic)))

Correct answer: [('Noro','Kimura','Matsumoto'), ('Nakao','Miyashita','Tanaka'), ('Miyaoka','Shibata','Ivan')]

Question 4: Select the correct output result when the following program is executed.

Mock exam questions

dive_into_code = [(1, 'Noro'), (2, 'Nakao'), (3, 'Miyaoka'), (4, 'Kimura')]
dic = dive_into_code
#1 sorts the second element in ascending order. If it is 0, the first element is sorted in ascending order.
dic.sort(key=lambda dic: dic[1]) 

print(dic)

Correct answer: [(4,'Kimura'), (3,'Miyaoka'), (2,'Nakao'), (1,'Noro')] So you sort by K → M → Na → No.

Question 5: Select the correct output result when the following program is executed.

Correct answer: xxxxCODExxxxDIVExxxxDIVE

replace.py

d = 'xxxxDIVExxxxDIVExxxxDIVE'

print(d.replace('DIVE', 'CODE', 1))

String.replace (string before replacement, string after replacement, maximum number of times)

Question 6: Select the correct output result when the following program is executed.

Correct answer: 3.142

% Overall width. Width after the decimal point f

format.py

print("Output result:")
print('Pi is%5.It is 3f.'%math.pi)

Pi is 3.142

Question 7: Select the correct output result when the following program is executed.

Correct answer: [('Noro','Kimura','Matsumoto'), ('Nakao','Miyashita','Tanaka'), ('Miyaoka','Shibata','Ivan')]

How to change list type: list to dictionary type: dictionary using zip

zip.py

dic = [
    ['Noro', 'Nakao', 'Miyaoka'],
    ['Kimura', 'Miyashita', 'Shibata'],
    ['Matsumoto', 'Tanaka', 'Ivan'],
]

print(list(zip(*dic)))

I referred to the following. https://pg-chain.com/python-dictionary-list

that's all