Not in high school but i tried my best to help
(Sorry that its blurry )
 
        
             
        
        
        
The message is lost when an FTP message is not delivered to its destination because FTP doesn't use a reliable delivery method.
<h3>What is FTP?</h3>
FTP is an abbreviation for file transfer protocol and it can be defined as a type of server that's designed and developed to store and provide files for download, as well as sharing between two or more users on an active computer network.
Generally, the message is lost when an FTP message is not delivered to its destination because FTP doesn't use a reliable delivery method.
Read more on FTP here: brainly.com/question/20602197
#SPJ12
 
        
             
        
        
        
8 smaller units, called bits :)
        
             
        
        
        
The OC level is primarily used as a regional ISP backbone, and occasionally by very large hospitals, universities, or other major enterprises is <u>OC-48.</u>
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<h3>What is the greatest amount of throughput provided by an OC 12?</h3>
OC-12 is a network line with communication speeds of up to 622.08 Mbit/s (payload: 601.344 Mbit/s; overhead: 20.736 Mbit/s). OC-12 lines are generally used by ISPs as wide area network (WAN) connections.
 
<h3>When using frame relay What is the appellation of the identifier?</h3>
A data-link connection identifier (DLCI) determines the Frame Relay PVC. Frames are routed through one or more virtual circuits determined by DLCIs. 
Each DLCI has a permanently configured switching path to a particular destination
To learn more about OC level , refer
brainly.com/question/25899244
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Answer:
bill = float(input("Enter the bill amount: "))
rating = int(input("Choose a rating: 1 = Totally satisfied, 2 = Satisfied, 3 = Dissatisfied.: "))
if rating is 1:
    tip = bill * 0.2
elif rating is 2:
    tip = bill * 0.15
elif rating is 3:
    tip = bill * 0.1
print("The rating is: " + str(rating))
print("The tip is: $%.2f" % (tip))
Explanation:
*The code is in Python
- Ask the user for the <em>bill</em> and <em>rating</em>
- Depending on the <em>rating</em>, calculate the <em>tip</em> using <u>if else</u> statement i.e. If the rating is chosen as 1, calculate the tip by taking 20 percent of the bill.
- Print the <em>rating</em> and the <em>tip</em>