Python Coding

Question 1

Which Python template can you use to retrieve IOS/Avaya/Arista etc files?

Answer 1

Use the ntc-template, which can be retrieved with GIT

Question 2

Where is netmiko based on?

Answer 2

Netmiko is based on paramiko

Question 3

What is netmiko using to connect to the device

Answer 3

SSH

Question 4

Which function can you use to prompt the user a username/password string?

Answer 4

The getpass python library

Question 5

How does a Python dictionary looks like for a device in a python script during netlike?

Answer 5

cisco_01 = {
“device_type”: “cisco_ios”,
“host”: “10.10.20.17”,
“username”: “cisco”,
“password”: “cisco123”
}

Question 6

How do you unpack a dictionary?

Answer 6

With **kwargs

Question 7

When do you use a dictionary to define nodes in your script?

Answer 7

You create more organised code

Question 8

How do you access the EXEC privilege

Answer 8

connection.enable() # Enable method

Add: “secret”: “cisco123” # Enable password to node dictonary

Question 9

How do you access config mode?

Answer 9

connection.config_mode()

Question 10

What is a for loop?

Answer 10

For loop in Python is used to iterate over a sequence such as a Python list. Loop continues until it reaches the last item on the list.

Question 11

Which library can be used to secure your login credentials?

Answer 11

getpass

Question 12

Which Netmiko method can you use to send multiple commands to a network node?

Answer 12

send_config_set

Question 13

Which features are included in the send_config_set method?

Answer 13

Automatically access global configuration mode. After running the script it automatically exit the global configuration mode

Question 14

How can you create a list of nodes to connect automatically to all?

Answer 14

This is done with a list of dictionaries

Question 15

In case of multiple nodes with a dictionary and a list, how does it look like?

Answer 15

The list had the dictionary inside. Like a bag with groceries.

Question 16

What is textfsm

Answer 16

It allows you to take unstructured data and convert it into structured data. It takes a block of text to lists and dictionaries.

Question 17

What is needed when you want to configure multiple devices with netmiko?q

Answer 17

You must create an empty list. This is Needed to store data. When this list is not present the script can’t save data. The empty list is a kind of container.

Question 18

Which commands can be used to check devices type information?

Answer 18

connection =netmiko.ConnectHandler(ip=”10.82.1.200”, device_type=”cisco_ios”, username=”alex”, password=”Test123)
connection

dir(connection)

Question 19

What does tell the whitespace in python?

Answer 19

What is part of a function and what is not.

Question 20

Which kind of arguments we can provide a functions

Answer 20

1. Positional arguments(arguments that can be called by their position in the function
2. Keyword arguments(arguments that can be called by their name
3. Default arguments(arguments that are given default value)

Question 21

With which word starts a function?

Answer 21

Def

Question 22

There are two different kind of functions, which two?

Answer 22

1. Built-in functions
2. User Defined functions

Question 23

What are functions in Python?

Answer 23

Print
Str
Len

Etc. Etc