18 questions for “Redis Replication”

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Redis Redis Replication 7 Redis Redis Sentinel & High Availability 6 AWS Amazon ElastiCache (Redis & Memcached) 1 Redis Redis Backup & Disaster Recovery 1 Redis TLS & Encryption in Redis 1

Information Technology

18 questions in 2 technologies

#	Question	Technology	Topic	Level
1	What is Redis replication, and how does it help improve availability and read scalability? Redis › Redis Replication	Redis	Redis Replication	Beginner
2	How do you check the current replication status and role of a specific Redis instance, whether it is acting as a primary or a replica? Redis › Redis Replication	Redis	Redis Replication	Intermediate
3	How do you configure a Redis instance to become a replica of another Redis instance? Redis › Redis Replication	Redis	Redis Replication	Beginner
4	What is replication lag, and what factors can cause a replica to fall noticeably behind its primary server? Redis › Redis Replication	Redis	Redis Replication	Intermediate
5	How would you design a read scaling strategy using multiple Redis replicas for an application with a very read heavy workload? Redis › Redis Replication	Redis	Redis Replication	Advanced
6	What happens to a Redis Cluster's replicas during a failover event, and how does the cluster decide which replica gets promoted? Redis › Redis Replication	Redis	Redis Replication	Advanced
7	What is the difference between full resynchronization and partial resynchronization when a replica reconnects to its primary after a temporary disconnection? Redis › Redis Replication	Redis	Redis Replication	Intermediate
8	How do you enable TLS encryption for internal replication and cluster bus traffic between Redis nodes, not just for client connections? Redis › TLS & Encryption in Redis	Redis	TLS & Encryption in Redis	Advanced
9	What is Redis Sentinel, and what role does it play in providing high availability for a non clustered Redis setup? Redis › Redis Sentinel & High Availability	Redis	Redis Sentinel & High Availability	Beginner
10	Why does Redis Sentinel recommend running at least three Sentinel instances rather than just one? Redis › Redis Sentinel & High Availability	Redis	Redis Sentinel & High Availability	Beginner

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