What units can be used to specify the radius in the GEORADIUS command?
GEORADIUS
Only meters
Meters, kilometers, miles, feet
Only kilometers
Only degrees
When dealing with a very large sorted set in Redis, what command can you use to retrieve elements within a specific rank range efficiently?
ZRANGEBYSCORE
SMEMBERS
ZRANGE
ZSCAN
Which Redis command is used to retrieve geospatial points within a specified radius?
GEOADD
GEOSEARCH
GEODIST
Which of the following is a crucial aspect of CI/CD pipelines for Redis?
Manually configuring Redis instances in production.
Running performance and load tests on Redis deployments.
Storing Redis data directly within the CI/CD pipeline.
Avoiding the use of version control for Redis configurations.
How do subscribers express interest in receiving messages from specific channels?
By writing a Lua script that listens for messages on the channel.
By executing the SUBSCRIBE command with the channel name.
SUBSCRIBE
By establishing a direct connection to the publisher.
By setting a special key in Redis with the channel name.
What is the primary purpose of using a Redis Cluster?
To distribute data and handle larger datasets than a single Redis instance can manage.
To enhance data security with built-in encryption.
To enable efficient message queuing and pub/sub functionality.
To improve the performance of complex sorted set operations.
What is the role of replication in a Redis Cluster?
To provide fault tolerance and ensure data availability in case of node failures.
To enhance data security by encrypting data across multiple nodes.
To improve write performance by distributing write operations.
To optimize read operations by caching frequently accessed data on multiple nodes.
What is a potential downside of using Redis as a primary database for your application?
Redis has limited data modeling capabilities compared to document-oriented or relational databases.
All of the above
Redis' in-memory nature means data persistence relies on disk or replication, introducing potential data loss risks.
Redis does not support complex queries or joins like traditional SQL databases.
A Redis key 'product:567' has a TTL of 60 seconds. What will be the TTL of this key after executing the command PERSIST product:567?
PERSIST product:567
None of the above
60
-1
0
Which use case is particularly well-suited for Redis Pub/Sub?
Maintaining a persistent, ordered log of events.
Storing large JSON documents for retrieval.
Implementing a real-time chat application.
Performing complex data aggregations.