Bookmark because you can go back to it at any given time to re use it
        
                    
             
        
        
        
Answer:
When we journey from a particular city to another city and we don’t really know the path then we ask for path and go on that which is just the same thing as packet switching.
Explanation:
Suppose system A intends to send packet to system B the steps and procedures are given below
1. A breakdown of large file into smaller bits of data on system A will first occur.
2.It attach separate headers for every portion of the file so that each portion looks like separate packet.
3.Header file in chunks will contain ip address of the file receiver which here is system B.
4. the Switch system will utilize the IP present in header to decide the link to destination.
 
        
             
        
        
        
I think the answer is a but I am not for sure
        
                    
             
        
        
        
Answer: jump out 
Explanation:
Took the test and it was correct 
 
        
             
        
        
        
Answer: close the program and reopen it.
Explanation: This is one of the 5 common problems in a computer.  When a program wont load, Try closing and reopening the program.
Reboot the computer.
Check for known issues on the web or updates to the software.
Use Task Manager (Ctrl+Alt+DEL) if program is non-responsive to "end task."