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tensa zangetsu [6.8K]
3 years ago
14

Write a note on secondary storage​

Computers and Technology
1 answer:
12345 [234]3 years ago
4 0
Secondary storage refers to storage devices and media that are not constantly accessible by a computer system. Examples include external hard drives, portable flash drives, CDs, and DVDs.
good luck
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Suppose you have four 500 MB hard drives plus one 2 GB flash drive. How many GB of capacity is this overall?
Sidana [21]

You would have a total of 2.5 GB of capacity.

A gigabyte consists of 1000 megabytes, so 500 megabytes make half of a gigabyte, or 0.5 gigabytes.

So 2GB + 0.5GB = 2.5GB

4 0
3 years ago
If Mark is developing a website to be optimized for mobile devices, what would be the top-level domain?
umka2103 [35]

Answer:

A top-level domain or the TLD is the domain at the highest level in the hierarchy of the DNS. And that means in the Internet DNS. Also, the top-level domain is installed in the namespace toot zone. And the top-level domain is the .com, in general, to be named as the best one. The next two are the .net and .org. But since it is required to optimize the website for the mobile devices, we should select here .com.

Explanation:

Please check the answer section.

5 0
3 years ago
Which of the following statements is false? Question 4 options: By convention class names begin with an uppercase letter, and me
amm1812

Answer:

Instance variables can be declared anywhere inside a class.

Although there isn't any rule to declare instance variables before methods, and they can be declared anywhere in the class, they cannot be declared inside method definitions of class.

///////////////////////////////////////////////////////////////////////////////////////////////////////////

<em>By convention class names begin with an uppercase letter, and method and variable names begin with a lowercase letter.</em> - True.

<em>Instance variables exist before methods are called on an object, while the methods are executing and after the methods complete execution.</em> - True.

<em>A class normally contains one or more methods that manipulate the instance variables that belong to particular objects of the class.</em> - True

8 0
3 years ago
Read 2 more answers
You are driving in the right lane of a municipal road the road has three lanes in your direction ahead of you in the lane to you
Mrrafil [7]
Pull Over. Do NOT Try to push the brake or try swerving with the steering wheel. Slowly pull to the side
7 0
3 years ago
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⦁ Consider transferring an enormous file of L bytes from Host A to Host B. Assume an MSS of 536 bytes. ⦁ What is the maximum val
timurjin [86]

Answer:

a)  There are approximately  2^32 = 4,294,967,296 possible number of the sequence. This number of the sequence does not increase by one with every number of sequences but by byte number of data transferred. Therefore, the MSS size is insignificant. Thus, it can be inferred that the maximum L value is representable by 2^32 ≈ 4.19 Gbytes.

b)  ceil(2^32 / 536) = 8,012,999

The segment number is 66 bytes of header joined to every segment to get a cumulative sum of 528,857,934 bytes of header. Therefore, overall number of bytes sent will be 2^32 + 528,857,934 =  4.824 × 10^9 bytes.  Thus, we can conclude that the total time taken to send the file will be 249 seconds over a 155~Mbps link.

Explanation:

a)  There are approximately  2^32 = 4,294,967,296 possible number of the sequence. This number of the sequence does not increase by one with every number of sequences but by byte number of data transferred. Therefore, the MSS size is insignificant. Thus, it can be inferred that the maximum L value is representable by 2^32 ≈ 4.19 Gbytes.

b)  ceil(2^32 / 536) = 8,012,999

The segment number is 66 bytes of header joined to every segment to get a cumulative sum of 528,857,934 bytes of header. Therefore, overall number of bytes sent will be 2^32 + 528,857,934 =  4.824 × 10^9 bytes.  Thus, we can conclude that the total time taken to send the file will be 249 seconds over a 155~Mbps link.

8 0
3 years ago
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