Y12 Managing data Flashcards

(43 cards)

1
Q

What is a disaster recovery plan (DRP)?

A

Plan on how to proceed if the system shuts down unexpectedly. Developed, trained, tested before a disaster occurs. Steps: preparation, activation & assessment, recovery & restoration, testing & validation, review & maintenance.

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2
Q

What is an audit trail?

A

A record containing a brief description of every activity carried out in a database.

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3
Q

What is a full backup?

A

Makes a copy of all data to a storage device.

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4
Q

What is a differential backup?

A

Copies all data changed since the previous full backup.

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5
Q

What is an incremental backup?

A

Copies only data that has changed since the last backup of any type.

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6
Q

What is a data warehouse?

A

Stores data and databases on computer servers. Collects data from multiple databases for analysis and decision making.

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7
Q

What is a data mart?

A

A simple section of a data warehouse that delivers a single functional data set.

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8
Q

What is data in the cloud?

A

Saving data to an off-site storage system.

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9
Q

What is the purpose of data mining?

A

Analysing and summarising data to produce useful information.

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10
Q

What are passwords?

A

Pass phrases used to restrict access to a system.

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11
Q

What are firewalls?

A

Block unauthorised traffic and access to and from a private network.

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12
Q

What are biometrics?

A

Authentication method based on biological traits such as DNA, fingerprints, and eye scans.

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13
Q

What is anti-virus software?

A

Detects, prevents, and removes malware from a computer by scanning drives and external media.

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14
Q

What is a digital signature?

A

Guarantees authenticity of an electronic document through encryption. Steps: signature creation (private key), public key sharing, recipient decrypts, authenticity confirmed if hashes match.

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15
Q

What is a digital certificate?

A

Authenticates credentials of an entity and is used with digital signatures to verify identity. Contains public key, holder’s name, serial number, expiration date, CA’s signature.

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16
Q

What is encryption?

A

Transforms information using algorithms to make it unreadable. Symmetric encryption uses a single shared secret key, asymmetric uses linked public/private keys.

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17
Q

What is user-generated content (UGC)?

A

Any content produced and shared by end-users, e.g., reviews, forum posts, testimonials, blogs.

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18
Q

What are the advantages of UGC?

A

Puts customers front and centre, provides social proof, builds relationships with customers.

19
Q

What are the disadvantages of UGC?

A

Trolls can post negative content, low quality content, legal/copyright issues hard to monitor.

20
Q

What is HTML?

A

Standard language to create a web page using plain text with special tags to structure content.

21
Q

What is Web 2.0?

A

More dynamic, interactive, UGC experience with rich user interaction and collective intelligence.

22
Q

What is Web 3.0?

A

More intelligent, autonomous, decentralised web where data is interconnected and understood by machines.

23
Q

What is a CMS?

A

An application for publishing, editing, and modifying content without coding knowledge. Includes content management and delivery applications.

24
Q

What are the features of a CMS?

A

Intuitive indexing, search/retrieval, format management, revision features, publishing.

25
What are the benefits of a CMS?
Ease of use, accessible anywhere, allows multiple users, easy to manage content.
26
What are the disadvantages of a CMS?
Can be costly, needs maintenance, requires staff training.
27
What is the purpose of the W3C?
International community developing open standards for the long-term growth of the web.
28
What are W3C conventions?
Interoperability, accessibility, long-term viability.
29
What are the W3C HTML and CSS standards?
HTML, CSS, and JavaScript standards.
30
What are the W3C graphics standards?
SVG, PNG, JPEG, GIF formats.
31
What are the W3C audio/video standards?
32
What is W3C accessibility?
WAI guidelines to make web usable for people with disabilities, e.g., alt text, keyboard navigation, colour contrast.
33
What is W3C internationalization?
Enables web technologies to work across different languages, expanding global reach.
34
What is W3C mobile web standard?
Creating content that is accessible and performs well on mobile devices.
35
What are online form hints?
Labels, required/optional info, help hints.
36
Why align labels in forms?
Clear association with input fields.
37
What is server-side validation?
Validates data before it enters database; if fails, user must redo form.
38
What is client-side validation?
Occurs in browser before submission; gives instant response.
39
What is real-time validation?
Uses JavaScript to give instant feedback as users type.
40
What is verifiability?
Whether information can be cross-referenced or confirmed.
41
What is accuracy?
Whether information correctly reflects facts.
42
What is currency?
Whether information is up-to-date and relevant.
43
How to test browser compatibility?
Ensure application functions/displays correctly via manual testing, automated testing, developer tools.