Cassandra Upgrade from V3 to V4 Quiz

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⬆️ Cassandra Administration – Cassandra Upgrade from V3 to V4

20 questions · 15 min timer · Explanations included · Free

What is the impact of not running 'nodetool drain' before shutting down a node for upgrade?

Increased read latency post-upgrade.

Faster node restart time.

Data loss due to unflushed memtables.

Improved write throughput.

None

Running 'nodetool drain' flushes memtables to disk, preventing data loss when the node is shut down for upgrade.

Which of the following is a critical consideration when upgrading from Cassandra V3 to V4?

Verifying compatibility of custom scripts and tools.

Ensuring all nodes are on the same hardware.

Upgrading the operating system before Cassandra.

Switching to a new data center during the upgrade.

None

Custom scripts and tools may rely on specific features or behaviors of Cassandra V3 that could change in V4, so compatibility must be verified.

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