1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
konstantin123 [22]
4 years ago
11

Describe what metadata are and what value they provide to the database system.

Computers and Technology
1 answer:
postnew [5]4 years ago
4 0
Metadata is data about data.

For example, a mp3 file is data, metadata would be data explaining the artist, song name, album, etc.

In a database, the data would be a record, metadata about this could include if the data was an integer or a string, as well as the size limit for this field.
You might be interested in
How do you clean and maintain a mouse, keyboard, optical drive, computer display, and printers?
Varvara68 [4.7K]

Answer:

I do not know the answer to this question

4 0
3 years ago
Read 2 more answers
Write a loop that displays all possible combinations of two letters where the letters are 'a', or 'b', or 'c', or 'd', or 'e'. T
Mars2501 [29]

Answer:

In what programming language?

Explanation:

6 0
4 years ago
g How safe is to have a LinkedIn account where you have published all the important information about yourself
irina [24]

Answer:

LinkedIn is very safe

Explanation:

LinkedIn is very safe, that being said you should never post private information about yourself anywhere that you do not want others to see/know. LinkedIn is a job recruiting and networking site, meaning that all the information that you have or will be publishing there should be related to your career. There is no reason for you to publish private information such as document numbers, social security number, address, bank account info, etc.

5 0
3 years ago
Read 2 more answers
Oliver’s night job at the university computing center is to change the tapes used for overnight data backups on the server. Whil
densk [106]

Answer:

Explanation:

Ollie’s thesis may not be backed up as reliably as he might wish. A backup program may pass over a file that is currently open for writing, as the state of the data in such a file may be indeterminate.

4 0
3 years ago
Given six memory partitions of 300 KB, 600 KB, 350 KB, 200 KB, 750 KB, and 125 KB (in order), how would the first-fit, best-fit,
Inga [223]

Answer:

In terms of efficient use of memory: Best-fit is the best (it still have a free memory space of 777KB and all process is completely assigned) followed by First-fit (which have free space of 777KB but available in smaller partition) and then worst-fit (which have free space of 1152KB but a process cannot be assigned). See the detail in the explanation section.

Explanation:

We have six free memory partition: 300KB (F1), 600KB (F2), 350KB (F3), 200KB (F4), 750KB (F5) and 125KB (F6) (in order).

Using First-fit

First-fit means you assign the first available memory that can fit a process to it.

  • 115KB will fit into the first partition. So, F1 will have a remaining free space of 185KB (300 - 115).
  • 500KB will fit into the second partition. So, F2 will have a remaining free space of  100KB (600 - 500)
  • 358KB will fit into the fifth partition. So, F5 will have a remaining free space of 392KB (750 - 358)
  • 200KB will fit into the third partition. So, F3 will have a remaining free space of 150KB (350 -200)
  • 375KB will fit into the remaining partition of F5. So, F5 will a remaining free space of 17KB (392 - 375)

Using Best-fit

Best-fit means you assign the best memory available that can fit a process to the process.

  • 115KB will best fit into the last partition (F6). So, F6 will now have a free remaining space of 10KB (125 - 115)
  • 500KB will best fit into second partition. So, F2 will now have a free remaining space of 100KB (600 - 500)
  • 358KB will best fit into the fifth partition. So, F5 will now have a free remaining space of 392KB (750 - 358)
  • 200KB will best fit into the fourth partition and it will occupy the entire space with no remaining space (200 - 200 = 0)
  • 375KB will best fit into the remaining space of the fifth partition. So, F5 will now have a free space of 17KB (392 - 375)

Using Worst-fit

Worst-fit means that you assign the largest available memory space to a process.

  • 115KB will be fitted into the fifth partition. So, F5 will now have a free remaining space of 635KB (750 - 115)
  • 500KB will be fitted also into the remaining space of the fifth partition. So, F5 will now have a free remaining space of 135KB (635 - 500)
  • 358KB will be fitted into the second partition. So, F2 will now have a free remaining space of 242KB (600 - 358)
  • 200KB will be fitted into the third partition. So, F3 will now have a free remaining space of 150KB (350 - 200)
  • 375KB will not be assigned to any available memory space because none of the available space can contain the 375KB process.
8 0
3 years ago
Other questions:
  • Type the correct answer in the box.
    7·1 answer
  • Can a computer will work more efficiently if you perform disk optimization
    9·1 answer
  • This is not homework but how do you fix this I’ve tried everything
    9·1 answer
  • What is the function of napier's bones<br>​
    8·1 answer
  • If you are involved in a collision that results in property damage, injury, or death, you must call
    13·1 answer
  • Write a program that prompts the user to enter the minutes (e.g., 1 billion), and displays the number of years and days for the
    7·1 answer
  • Took some photos today for photography class what do you think??
    13·2 answers
  • An error in the sequence of words or rules in a program that prevents the program from running is what?
    10·2 answers
  • The conversion rate is the percentage of what? A. Customers who received cold calls B. Sales leads who reached the interest stag
    13·1 answer
  • which one of the following portfolios cannot lie on the efficient frontier as described by markowitz? portfolioexpected returnst
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!