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kipiarov [429]
3 years ago
15

________ is used to undo unwanted database changes.

Computers and Technology
2 answers:
trapecia [35]3 years ago
8 0
Backward Recovery
<span> ________ is used to undo unwanted database changes. </span>
riadik2000 [5.3K]3 years ago
5 0
Backward Recovery would be the answer.

(:
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You are implementing a RAID storage system and have found a system with eight 100 GB drives. How much storage space will you hav
asambeis [7]

Answer:

The space available will vary between 800 GB (100%) and 400 GB (50%) of the total disks, depending on the RAID level.

The OS will handle the RAID as a single disk.

Explanation:

Each RAID level implements parity and redundancy in a different way, so the amount of disks used for this extra information will reduce the space available for actual storage.

Usual RAID levels are:

<u>RAID 0:</u> does not implement any redundancy or parity, so you will have available 100% of the total storage: 8 x 100 GB = 800 GB

<u>RAID 1:</u> Duplicates all the information in one disk to a second disk. Space is reduced in half: 400 GB

<u>RAID 5:</u> Uses the equivalent of 1 disk of parity data distributed evenly on each disk, meaning the space available is \frac{n-1}{n} of the total disks: \frac{7}{8} of 800 GB = 700 GB

Writting and reading the information on a RAID storage is handled by a raid controller, either implemented in hardware or software. The OS will "see" a single disk and will read or write information as usual.

4 0
3 years ago
Press the ENTER key to do what?
Blababa [14]
Change the line in word, it basically returns
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3 years ago
Suppose you can access the caches in the local DNS servers of your department. Can you propose a way to roughly determine the We
lubasha [3.4K]

Answer:

We can periodically take a snapshot of the Domain Name System (DNS) caches in the local  Domain Name System (DNS) servers.

Explanation:

We can periodically take a snapshot of the Domain Name System (DNS) caches in the local  Domain Name System (DNS) servers. The Web server that appears most frequently in the  Domain Name System (DNS) caches is the most popular server. This is because if more users are interested in a Web server, then Domain Name System (DNS) requests for that server are more frequently sent by users. Thus, that Web server will appear in the  Domain Name System (DNS) caches more frequently.  

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3 years ago
What is the function of a bread crumb trial in a website
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A breadcrumb or breadcrumb trail is a graphical control element frequently used as a navigational aid in user interfaces and on web pages. It allows users to keep track and maintain awareness of their locations within programs, documents, or websites. Breadcrumbs make it easier for users to navigate a website – and they encourage users to browse other sections of the site. ... You head to their site and end up on The Nestle company history page. Using their breadcrumbs, you can easily navigate back to About Us, History, or even their home page.

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3 years ago
The project manager of a software development team needs to hire someone to review every part of the software to make sure it wo
Zielflug [23.3K]

Answer:

code reviewer

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