
Concept explainers
A_________-controlled loop uses a true/false condition to control the number of times that it repeats.
a. Boolean
b. condition
c. decision
d. count

The “while” loop is a condition-controlled loop; it controls the number of times that the loop repeats.
Hence, the correct answer is option “B”.
Explanation of Solution
Condition controlled loop:
This is a loop that exhibits true or false condition to control the number of times that the loop repeats. For example, the “while” loop is a condition-controlled loop.
- The “while” loop first checks its expression, and then the statements inside the loop get executed. It is also called as pretest loops.
- The loop gets terminated when the condition becomes false.
Syntax:
Syntax for the “while” loop is as follows:
while boolean_expression:
# while suite
Example Program:
Consider the following example of the condition-controlled loop:
#initialization of variable
a=1
#execute the while loop until a is less than or equal to 5
while a<=5:
#Print the value of a
print(a)
#Increment a by 1 for each iteration of loop
a+=1
zOutput:
1
2
3
4
5
In the above code, the “while” loop executes until the value of “a” is less than or equal to 5, and then it exits from the program when the condition inside the loop fails.
Explanation for incorrect options:
Boolean:
Boolean is not a loop instead it is a data type that is represented with two values either true or false. This value is based upon the flow of the action performed by the program.
Hence, option “A” is wrong.
Decision:
A decision is not a loop, and it decides the case to be executed based upon the situation.
Hence, option “C” is wrong.
Count controlled loop:
This is a loop that repeats a specific number of times, and it keeps track of the counter variable to track about the number of times that the loop executes. For example, “for” loop is a counter-controlled loop.
Hence, option “D” is wrong.
Want to see more full solutions like this?
Chapter 4 Solutions
Starting Out with Python (4th Edition)
Additional Engineering Textbook Solutions
Electric Circuits. (11th Edition)
Starting Out With Visual Basic (8th Edition)
SURVEY OF OPERATING SYSTEMS
Management Information Systems: Managing The Digital Firm (16th Edition)
Concepts Of Programming Languages
Database Concepts (8th Edition)
- Please solve and show all steps. True or false? Consider congestion control in TCP. When the timer expires at the sender, the value of ssthresh is set to one-half of the last congestion window.arrow_forwardPlease solve and show all work. What are the purposes of the SNMP GetRequest and SetRequest messages?arrow_forwardPlease solve and show all steps. Three types of switching fabrics are discussed in our course. List and briefly describe each type. Which, if any, can send multiple packets across the fabric in parallel?arrow_forward
- Please solve and show steps. List the four broad classes of services that a transport protocol can provide. For each of the service classes, indicate if either UDP or TCP (or both) provides such a service.arrow_forwardPlease solve and show all work. What is the advantage of web caches, and how does it work?arrow_forwardPlease solve and show steps. Consider a DASH system for which there are N video versions (at N different rates and qualities) and N audio versions (at N different rates and qualities). Suppose we want to allow the player to choose at any time any of the N video versions and any of the N audio versions. If we create files so that the audio is mixed in with its matched-rate video and the server sends only one media stream at a given time, how many files will the server need to store (each with a different URL)? If the server instead sends the audio and video streams separately and has the client synchronize the streams, how many files will the server need to store?arrow_forward
- Please solve and show all work. Recall that TCP can be enhanced with SSL to provide process-to-process security services, including encryption. Does SSL operate at the transport layer or the application layer?arrow_forwardPlease solve and show all work. Compute the checksum of the words 1011 1001, 1001 1110, and 0111 1011. Show all work.arrow_forwardPlease solve and show all work. Suppose you can access the caches in the local DNS servers of your department. Can you propose a way to roughly determine the Web servers (outside your department) that are most popular among the users in your department? Explainarrow_forward
- Please solve and show all work. Thank you. Suppose Host A sends two TCP segments back to back to Host B over a TCP connection. The first segment has sequence number 120; the second has sequence number 170. How much data is in the first segment? Suppose that the first segment is lost but the second segment arrives at B. In the acknowledgment that Host B sends to Host A, what will be the acknowledgment number?arrow_forwardIn Matlab script, how would you compute a Reimann sum to approximate the area under the y=sin(x) from a =0 to b = p1/2 with n=6 subintervals using left-endpoints. Use for loop. Assign the result to Lsum.arrow_forwardplease solve using the first step i did which was c(n,n) = 1/C(5,5) = 1. <n=5> P(n,n) = n!/p(8,8)= 8! <n=8>arrow_forward
- Programming Logic & Design ComprehensiveComputer ScienceISBN:9781337669405Author:FARRELLPublisher:CengageEBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENTMicrosoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,
- C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology PtrC++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage LearningProgramming with Microsoft Visual Basic 2017Computer ScienceISBN:9781337102124Author:Diane ZakPublisher:Cengage Learning




