Which command is used to set a specific bit in a Redis Bitmap?
BITOP
SETBIT
BITCOUNT
GETBIT
What type of data structure is used internally by Redis Geospatial Indexes?
Bitmap
HyperLogLog
Hash
Sorted Set
When a transaction is executed with EXEC, and a watched key has been modified, what is the expected return value?
EXEC
The integer 0.
0
An empty list ([]).
[]
The integer 1.
1
The string "OK".
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 configure and manage Redis clusters across multiple regions.
To simulate realistic workloads and assess Redis performance.
To visualize the real-time performance metrics of a Redis instance.
What is the role of replication in a Redis Cluster?
To improve write performance by distributing write operations.
To optimize read operations by caching frequently accessed data on multiple nodes.
To enhance data security by encrypting data across multiple nodes.
To provide fault tolerance and ensure data availability in case of node failures.
What is a key consideration when designing a system using Redis Pub/Sub for high message volume?
Implementing a mechanism to handle slow subscribers to prevent message backlog.
Using persistent storage for all messages to facilitate auditing and replay.
Ensuring that all messages are acknowledged by subscribers to prevent data loss.
Configuring Redis to prioritize Pub/Sub messages over other commands.
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
60
None of the above
-1
What is the minimum number of Redis nodes required to create a functional Redis Cluster?
3
2
6
What happens when you execute RENAME key1 key2 and key2 already exists?
RENAME key1 key2
key2
key2 is renamed to a temporary name, and then key1 is renamed to key2
The command blocks until key2 is deleted
An error is returned, and no changes are made
key1 is renamed to key2, overwriting the existing key2
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
ZSCAN
ZRANGE