Answer:
Internet Control Message Protocol (ICMP) Echo Requests
Explanation:
A system that has Windows Firewall or antivirus or other third party antivirus enabled with their configuration setting set to default, ping command from another device will not be able to see if the device with an enabled firewall is alive.
The ping command sends Internet Control Message Protocol (ICMP) Echo Request to a destination device after the destination device will reply with a Reply packet. However, by default, firewalls, such as Windows firewall blocks ICMP Echo Requests from the external network and pinging will work when the firewall is disabled or an exception is created that lets ICMP Echo Requests pass through the firewall.
Application I think because software used to create a program is called application software I'm not entirely sure about that though
Answer:
words = ['is', 'NLP', 'fun', '?']
tmp = words[1]
words[1] = words[0]
words[0] = tmp
words[3] = '!'
print(words)
Explanation:
- Create the list
- Assign the new values using <em>tmp</em> variable
- Print the result
Since tuples in Python are unchangeable, you cannot transform the list using tuple assignment.
Answer:
Basically it creates a unique identifier for each row in your table and that can help you link your table to other tables using primary key as link
Explanation:
"Primary key allows you to create a unique identifier for each row in your table. It is important because it helps you link your table to other tables (relationships) using primary key as links."
