Keys, TTL & Data Types

Preview — 3 of 10 questions

What is Redis primarily designed to be?

AA relational database with SQL support

BAn in-memory data structure store used as a database, cache, message broker, and streaming engine

CA disk-based document database optimized for JSON storage

DA distributed file system for storing binary blobs

What does the following Redis command sequence produce?

javascript

SET name "Alice"
GET name
DEL name
GET name

A"Alice", "Alice", "Alice", "Alice"

BOK, "Alice", (integer) 1, (nil)

COK, "Alice", OK, ""

D"Alice", "Alice", (integer) 1, ""

What does TTL key return if the key exists but has no expiry set?

A-1

C(nil)

DInfinity

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