Answer:
Check the network icon (or wireless connection settings) to see if you have Internet access. ...
Check for changes to proxy settings.
Check the network cables if your computer is wired to the router.
Reset your router.
Check your firewall or security software.
Hopefully this helps.
 
        
             
        
        
        
Answer:
True is the correct Answer for the above question.
Explanation:
- Computer security is a security in which data of the computer is secured from the access of unauthorized users. It is primarily achieved to stop the access grant to the unauthorized user.
- It means that there is an authorization point which decides that the user is authorized or not. If the user is authorized then only he can enter the system otherwise he can not able to enter the system.
- It helps to secure the data and the data is the important point of the computer system.
- The question also states the same which is described above. Hence true is the correct answer.
 
 
        
             
        
        
        
The first one and last one
        
                    
             
        
        
        
Answer:
Answered below
Explanation:
//Program is written in Python programming //language.
number_of_trees = int(input ("Enter number of trees purchased: "))
height_of_trees = float(input("Enter height of trees: "))
delivery_status = input("Do you want trees delivered? enter yes or no ")
price_of_two_meters = 20
total_price = number_of_trees * price_of_two_meters
//Invoice
print (number_of_trees)
print(height_of_trees)
print (total_price)
print (delivery_status)
 
        
             
        
        
        
Linear search
You implement this algorithm by iterating over each item, and checking if the item matches what you are searching for. 
It is linear because it takes a linear amount of time to search for an item.