Question 1

What is a UUID?

Accepted Answer

A UUID is a 128-bit value used to uniquely identify data across systems.

Question 2

What is UUID v4?

Accepted Answer

UUID v4 is generated using random values rather than timestamps or hardware data.

Question 3

Are UUIDs really unique?

Accepted Answer

UUID v4 provides such a massive number of combinations that collisions are practically impossible.

Question 4

What are UUIDs commonly used for?

Accepted Answer

UUIDs are used for database keys, API identifiers, session IDs, and distributed systems.

Question 5

Is UUID generation secure?

Accepted Answer

UUID v4 is unpredictable but should not be considered encryption.

Question 6

Does GeneratorKithub generate UUIDs locally?

Accepted Answer

Yes. UUIDs are generated entirely in your browser.

Question 7

Can UUIDs be used in URLs?

Accepted Answer

Yes. UUIDs are commonly used in URLs to avoid predictable identifiers.

Question 8

Can UUIDs repeat?

Accepted Answer

The probability of repetition is astronomically low.

Question 9

How long is a UUID?

Accepted Answer

A standard UUID is 36 characters long including hyphens.

Question 10

Are UUIDs case-sensitive?

Accepted Answer

No. UUIDs are case-insensitive.

Question 11

UUID vs auto-increment IDs - which is better?

Accepted Answer

UUIDs are better for distributed systems, while auto-increment IDs are simpler.

Question 12

Do UUIDs affect database performance?

Accepted Answer

UUIDs can affect indexing but modern databases handle them efficiently.

Question 13

Are UUIDs standardized?

Accepted Answer

Yes. UUIDs follow the RFC 4122 standard.

Question 14

Can I generate multiple UUIDs at once?

Accepted Answer

Yes. GeneratorKithub allows quick regeneration.

Question 15

Can UUIDs reveal system information?

Accepted Answer

UUID v4 does not include timestamps or MAC addresses.

Question 16

Are UUIDs suitable for public APIs?

Accepted Answer

Yes. UUIDs prevent predictable identifiers.

Question 17

Can UUIDs be shortened?

Accepted Answer

Shortening reduces uniqueness guarantees.

Question 18

Is the UUID generator free?

Accepted Answer

Yes. GeneratorKithub provides it for free.

Question 19

Who should use a UUID generator?

Accepted Answer

Developers, architects, and system designers.

Question 20

Why choose GeneratorKithub for UUIDs?

Accepted Answer

It offers fast, privacy-friendly, browser-based UUID generation.

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