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4 years ago

Which of the following files should be multiplexed, for safety? (Choose all correct answers.)

Computers and Technology

1 answer:

Delicious77 [7]4 years ago

3 0

Answer:B)Control File

D)Archive Log-files

Explanation:

Control file is a file which holds the status of the databases elements such as names, location,online redo files, etc in binary form. This requires the multiplexing by collecting all these database elements into one encapsulated unit.

Archive log-files are those file which holds the redo files in the offline ports which contain the elements.The also form a single group for the safety by multiplexing method.

You might be interested in

What do you think will happen if you use a different file format for a certain document type?

sweet-ann [11.9K]

Answer:

It will either convert the file automatically into the program so you can edit it on the different platform or it will not be able to open the document at all.

Explanation:

I have personally done this before. Usually I use Word documents, which are .doc and .docx files.

I also run a Linux based OS sometimes (dual boot) and I don't have Microsoft Office products on it. However, Linux does have their own set of products that are similar to it.

I opened a .docx file on the Linux version of Word and it did convert the file into a separate one and I was able to edit it.

However, when I then tried opening the new Linux file type on Word, it was not able to open the document at all.

Therefore, it really depends on what programs have what capabilities. Word can open .doc and .docx. Linux could open their own types as well as .doc and .docx by conversion.

A rule of thumb is just not to change the file format at all. Just stick with the original so you don't lose your file. If you cannot do so, then use a online file converter to change the file type.

3 0

3 years ago

. Suppose an instruction takes 1/2 microsecond to execute (on the average), and a page fault takes 250 microseconds of processor

saul85 [17]

Answer:

a. 100.

b. 31500.

Explanation:

So, we are given the following data which is going to help in solving this particular question.

The time required to execute (on the average) = 1/2 microsecond , a page fault takes of processor time to handle = 250 microseconds and the disk time to read in the page = 10 milliseconds.

Thus, the time taken by the processor to handle the page fault = 250 microseconds / 1000 = 0.25 milliseconds.

The execution time = [ 1/2 microseconds ]/ 1000 = 0.0005 milliseconds.

The number of Pages sent in a second by the disc = 1000/10 milliseconds = 100.

Assuming U = 1.

Hence, the disc transfer time = [2/3 × 1 } + [ 1/3 × 0.25 milliseconds + 15 ] × 2.

=0.667 + 15.083.

= 15.75 millisecond.

Average number of instruction = 15.75/0.0005 = 31500.

8 0

3 years ago

Gina is a database user and her supervisor has asked her to generate a report from the structured database. Gina does not know h

const2013 [10]

Answer: C. Query builder

Explanation:

Based on the information given in the question, since Gina does not know how to write SQL commands and no forms have been created, the best option to generate the report is a query builder.

With the Query Builder, Gina can be able to search and also select and filter the database objects, while also creating relationships between the objects, and save queries despite not having any SQL knowledge.

4 0

3 years ago

A user reports his or her computer is slow to boot. You check the boot order and determine that the computer is checking the C d

Nata [24]

You could turn off memory testing, but defragmentating and running chkdsk on C: would be better to try first.

6 0

3 years ago

Create an application that calculates and displays the amount of a homeowner's property tax. The tax is 1.35% of the property's

Valentin [98]

Answer:

a) Planning chart:

Create the form, and add two buttons, calculate and exit, and add two labels and two textboxes, as shown in the second image. Now code the buttons as shown in the image file, and debug. The required program is ready.

b) The design is as shown in the second image,

c) And the code for the windows form is also ready. Steps in brief. Open visual studio, Go to file menu and hit on New. Now choose Windows form from project type, and give the project name VB2017/chap02. Now code as explained in A, and as explained in images.

D) We just need to follow the plan to build the interface.

E) The code of exit button. Double click exit button to enter code-behind, and add this.Close(); And that's it, we have the project ready.

Explanation:

Please check the answer section.

And If you want Rounded off value, then you need to all below code in calc_click method. Double click on calc, and code behind will appear. Add the below code over there:

double tax = Convert.ToDouble((textBox1.Text)) * 5/100;

double Roundedtax = Math.Round(tax, 2);

textBox2.Text = Convert.ToString(Roundedtax);

textBox2.Show();

textBox3.Text = Convert.ToString(Convert.ToDouble(textBox1.Text) + Convert.ToDouble(textBox2.Text));

textBox3.Show();

For dollar sign, add a label after each textbox, and change its text to $s.

5 0

3 years ago