DEV Community: Vikky Omkar

Scenario Based Docker Interview Questions | Part-4

Vikky Omkar — Mon, 12 Oct 2020 03:09:28 +0000

Hey There,

Here is the 4th video on “Scenario based Docker Interview Questions”

Following questions are addressed in this video:-

I have a requirement to copy token/config file inside a container but can’t use docker cmd for that. Is there any alternate way to achieve it ?
“I can run any linux flavour container on my host as docker engine makes use of linux kernel features for containerization”
Do you support this statement ? If yes then prove.
Is it possible to
pull/push Image, run/stop other docker containers from inside a container ?
or
talk to host docker daemon from inside a container ?
Stopping a running container using docker stop is slow as compared to docker kill but still its advised for a good user experience why ?
I have an app and a db container running on a host. How can these 2 containers talk to each other ?

How to use a Python Code as Script and Module Both ?? For Beginners

Vikky Omkar — Tue, 15 Sep 2020 02:50:57 +0000

Checkout the Video for explanation :

3 ways to find if a number is Odd/Even in Python

Vikky Omkar — Thu, 27 Aug 2020 15:16:58 +0000

Solution #1

def find(num):
    # code logic here
    if num%2 == 0:
        numtype="even"
    else:
        numtype = "odd"
    return numtype

num = int(input('Enter the number: '))  # 1. take your input
numtype = find(num)                     # 2. call the find function
print('Given number is',numtype).       # 3. print if the number is even or odd

Output:

coder# python challenge07.py 
Enter the number: 5
Given number is odd
coder# python challenge07.py 
Enter the number: 8
Given number is even

Explanation:-

input() function is used to take user input
find() function is called to to check if a number is off/even. This function returns numtype as odd/even
At last, print if the given number is odd/even

Solution #2

Avoid usage of else block by assigning a default value (odd) to numtype

def find(num):
    # code logic here
    numtype = "odd"
    if num%2 == 0:
        numtype="even"
    return numtype

num = int(input('Enter the number: '))      # take your input
numtype = find(num)                         # call the find function
print('Given number is',numtype)            # print if the number is even or odd

Output:

coder# python challenge07.py 
Enter the number: 5
Given number is odd
coder# python challenge07.py 
Enter the number: 8
Given number is even

Solution #3

directly return numtype

def find(num):
    # code logic here
    if num%2 == 0:
        return "even"
    return "odd"

num = int(input('Enter the number: '))      # take your input
numtype = find(num)                         # call the find function
print('Given number is',numtype)            # print if the number is even or odd

Output:

coder# python challenge07.py 
Enter the number: 5
Given number is odd
coder# python challenge07.py 
Enter the number: 8
Given number is even

Bonus

numtype = num%2 == 0 and "even" or "odd"

Find the video explanation also

DEV Community: Vikky Omkar

Scenario Based Docker Interview Questions | Part-4

Popular Docker Interview Questions with RealTime Scenarios for Beginners | Part 3

Popular Docker Interview Questions with RealTime Scenarios for Beginners | Part 2

Following questions are addressed here:-

Checkout below video for the answers

Popular Docker Interview Questions with RealTime Scenarios for Beginners | Part 1

Below are the most popular docker interview questions for Beginners

Checkout below video for the answers

How to use a Python Code as Script and Module Both ?? For Beginners

3 ways to find if a number is Odd/Even in Python

Solution #1

Output:

Explanation:-

Solution #2

Output:

Solution #3

Output:

Bonus