What units can be used to specify the radius in the GEORADIUS command?
GEORADIUS
Only kilometers
Meters, kilometers, miles, feet
Only degrees
Only meters
Which Redis command is used to retrieve geospatial points within a specified radius?
GEOADD
GEODIST
GEOSEARCH
How do subscribers express interest in receiving messages from specific channels?
By executing the SUBSCRIBE command with the channel name.
SUBSCRIBE
By writing a Lua script that listens for messages on the channel.
By establishing a direct connection to the publisher.
By setting a special key in Redis with the channel name.
What is the role of a 'Dockerfile' in a Redis containerization workflow?
It provides a command-line interface for interacting with the container.
It specifies the instructions to build a Docker image for Redis.
It defines the network configuration for the Redis container.
It automates the process of deploying the container to production.
What is the purpose of using a tool like 'Redis-benchmark' in a CI/CD pipeline?
To automatically back up and restore Redis data at scheduled intervals.
To simulate realistic workloads and assess Redis performance.
To configure and manage Redis clusters across multiple regions.
To visualize the real-time performance metrics of a Redis instance.
What is a key consideration when designing a system using Redis Pub/Sub for high message volume?
Configuring Redis to prioritize Pub/Sub messages over other commands.
Implementing a mechanism to handle slow subscribers to prevent message backlog.
Ensuring that all messages are acknowledged by subscribers to prevent data loss.
Using persistent storage for all messages to facilitate auditing and replay.
Which Redis data structure is particularly well-suited for implementing a real-time leaderboard with ranked scores?
String
Sorted Set
Set
List
When a transaction is executed with EXEC, and a watched key has been modified, what is the expected return value?
EXEC
An empty list ([]).
[]
The string "OK".
The integer 1.
1
The integer 0.
0
Which of the following is a crucial aspect of CI/CD pipelines for Redis?
Running performance and load tests on Redis deployments.
Manually configuring Redis instances in production.
Avoiding the use of version control for Redis configurations.
Storing Redis data directly within the CI/CD pipeline.
What Redis data structure would be MOST efficient for storing a user's session data with an expiry time?
Hash