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Duplicate data in multiple data files is?
Data backups
What is a type of media capable of storing digitized data and that uses a laser to write data to it and read data from it?
Optical media.
When should files be archived and how can they be archived on a computer?
Files should be archived as often as possible. Backup programs (of which there are many to choose from) are used to create archives. Backups can be made to a variety of storage mediums including removable drives and optical discs (CD, DVD or BluRay). Removable drives are the best option in terms of storage capacity and speed and they allow backups to be kept off-site which provides an additional measure of security in the event of fire or flood damage, for instance. Cloud-based backups are also an option for maintaining off-site backups. If you have a lot of data, a RAID system makes sense as they can be used to create automatic backups by duplicating files across two or more discs. If one disc fails, the other will keep you up and running until the faulty disc is replaced. However, if both should fail (which can happen), you'll be glad you made an off-site backup. Indeed, it's good practice to have several levels of redundancy, combining a RAID with an on-site backup in a fire-proof safe, an off-site backup in a dedicated data storage facility and a cloud-based backup for when all else fails. How often you backup is entirely dependant upon how much you are prepared to lose should disaster strike. We've all had those occasions when we've been working on a lengthy document and suddenly the power goes out, losing an hours worth of work. While there are measures we can take to minimise the loss, it is nonetheless frustrating. But when a disk fails, an hours worth of work is the least of your worries; you might lose days, weeks, even months of work, depending on when you last made a backup. So it's vital that you make regular backups. It's also important to make system backups as well as data backups. System backups only need to be done after making a change to the system, such as when updating software or adding new programs but restoring a system from backup is many times quicker than re-installing from scratch. System backups don't need to be done as often as data backups but you should always have at least one full backup of the system and another of the data. Thereafter you can make incremental backups (recording the changes since the last backup) however full backups should be made periodically. To create an archive, you first choose which files should be part of that archive. If all your documents are in your personal folder then it's simply a matter of selecting that one folder and creating a complete backup. Keeping system files separate from your data, preferably on completely separate drives, makes it easy to create separate system and data archives, however backup programs allow you to create multiple backup configurations (or tasks) that you can easily recall. Note that every file on your system has an ARCHIVE attribute associated with it. Every time you backup a file, the ARCHIVE attribute is cleared. Every time you modify or create a file, the ARCHIVE attribute is set. This simple mechanism makes it possible to determine which files have changed since they were last backed up, thus allowing you to create incremental backups. So having selected the files you wish to backup, you simply choose a full backup or an incremental backup. Incremental backups obviously take less time to complete. A normal backup cycle requires that you make a full backup at the end of each week or at the end of each month, depending on how changeable your data is. In between these backups you will make incremental backups. However, it is important that you never overwrite the most recent backup, so always keep several volumes in rotation. For instance, if you perform weekly incremental backups with a full backup every month, it would be prudent to keep at least 3 full backups in circulation (covering the previous three months) and as many as 15 incremental backups, covering up to 5 weeks in each of those 3 months. So long as one of the three full backups works, the worst case would be losing 3 months work. This is why it is important to verify your backups as soon as you make them. It's no use making a backup if it cannot be relied upon. Backup programs normally include an option to automatically verify a backup after it is made. Above all else, if your data is vital, backup your backups with an off-site backup.
What volume of data is processed by minicomputers?
Minicomputers are able to process large amounts of data.
Guided versus unguided network?
Guided Media : Guided Transmission Media uses a "cabling" system that guides the data signals along a specific path. The data signals are bound by the "cabling" system. Guided Media is also known as Bound Media Unguided Transmission Media consists of a means for the data signals to travel but nothing to guide them along a specific path. In a guided medium signal passes through a physical pathway(s),while in an unguided medium signal passes through a vacuum, it is independent of a physical pathway.
Which method of backup stores all created backups indefinitely?
Type your answer here... Full ArchivalAnswer Explanation: The Full Archival method stores all backups for all systems indefinitely, regardless of the type of backup media used. These types of backups would be stored in a single location, most likely offsite, and they eliminate the risk of data loss. The drawback to this type of backup method is the large amount of storage space required to keep all of the backups.
Duplicate data in multiple data files is?
Data backups
Chapter 9 Which two procedures can help secure data backups?
which two procedure can help secure data backups
Which peripheral device is used in backups?
Peripheral devices commonly used for backups include USB hard drives and flash drives. They allow for large amounts of data to be easily transferred and stored.
How does the GDPR regulation impact the process of deleting data from backups?
The GDPR regulation requires that personal data be deleted upon request. This impacts the process of deleting data from backups because organizations must ensure that backups also comply with this requirement, which may involve implementing mechanisms to identify and remove specific data from backups when necessary.
Are working and storage copies of electronic media used for the same purpose?
No, working and storage copies of electronic media are not used for the same purpose. Working copies are intended for active use, editing, or processing, while storage copies serve as backups or archives to preserve data over time. The distinction ensures that working copies can be modified without risking the integrity of the original data stored in backups.
Which backup takes the longest to complete?
Typically, a full backup takes the longest to complete compared to incremental or differential backups. This is because full backups copy all data while incremental and differential backups only copy changes since the last backup.
What is the difference between data files and data records?
Data files are data whereas data records are backups.
Why backups are needed?
backups are needed for security reasons for any organization data is most important but if due to any reason (accident , virus ,human etc.) data get corrupt or get loss then it is big problem for organization there for these backups are needed
What is The most important procedure to protect software and data is to?
The most important procedure that you can use to protect your software and data includes making frequent backups of your data. You should store the backups in remote locations
What is the functions of mainframe computer?
The function of a mainframe computer is usually as a large database of all sorts of data. An example would be a large credit card company would have a computer that would hold every bit of data that company needed including customers and their info. So in short a computer with large amounts of data, and in most cases, backups of that data too.
What is functions of a mainframe computer?
The function of a mainframe computer is usually as a large database of all sorts of data. An example would be a large credit card company would have a computer that would hold every bit of data that company needed including customers and their info. So in short a computer with large amounts of data, and in most cases, backups of that data too.
