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4 years ago

Consider the partially-filled array named a. What does the following loop do? (cin is a Scanner object)

Computers and Technology

1 answer:

Keith_Richards [23]4 years ago

4 0

Answer:

Option (1)

Explanation:

value is read outside the loop so it is read only once. After that the loop has begun and in the loop condition it is checked if size < capacity and as size is initialized as 3 so it is true and value if entered more than 0 then loop starts and value is assigned to a[3] and size is incremented and it continues till size is 6 and condition becomes false. So loop executes 3 times but same value is assigned.

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Three PCs are on an Ethernet LAN, connected by a hub. Describe how the Ethernet protocol deals with collisions in this situation

sdas [7]

Answer:

All the ports in a hub are in the same collision domain and a hub sends frames from one host to all other hosts in the network. This makes it prone to collision and poor network throughput. Just like a network switch, it uses the CSMA/CD protocol to detect collision in its network.

A network switch reduces its collision domain to just a port and sends frames from one host to another using its mac table as a route. This makes the network very efficient with high throughput. It also uses the CSMA/CD protocol to detect collision

Explanation:

Switches and hubs are used in networking to connect computer devices in a network. A hub is an obsolete device networking that broadcast a frame to all other ports or host in the network except for the send host port. This increases the rate of collision as all the ports in a hub share the same collision domain. A switch is an efficient frame switching device in a network, which uses its MAC table to decide and find a destination host.

CSMA/CD is a collision detection protocol used in a network to detect and prevent a collision. With this protocol, a host is able to listen, wait, send and resend frames to prevent a collision.

3 0

3 years ago

Why is hard disk called random access medium

Effectus [21]

Answer:

Data is accessed in a random-access manner, meaning the individual blocks of data can be stored and retrieved in any given order or time.

Explanation:

5 0

2 years ago

Read 2 more answers

PLEASE HELP ME! Will report ignorant answers!

kaheart [24]

Answer:

It is important so your computer can function properly. the two things that might happen if they are not compatible are that it might crash your computer and that your computer might not function properly.

5 0

3 years ago

In 1–2 sentences, describe how you would create a border around a group of cells

iragen [17]

Pick one of the cells you want to format and then click the down arrow beside the Borders button in the Font group on the Home tab. A drop-down menu comes up with all theborder options that you can apply to the cell selection

4 0

4 years ago

Read 2 more answers

Write a program that gets five integer test scores from the user, calculates their average, and prints it on the screen. Test yo

Alex

Answer:

total = 0

for i in range(5):

score = int(input("Enter a score: "))

total += score

average = total / 5

print("The average is " + str(average))

Explanation:

*The code is in Python.

Initialize the total as 0

Create a for loop that iterates five times. Inside the loop, ask the user to enter a score. Add the score to the total (cumulative sum)

After the loop, calculate the average, divide the total by 5

Print the average

5 0

3 years ago