Quiz time

Q.1. State whether the following statements are true or false.

1. Cassandra has a single point of failure.

2. A dead node is immediately detected in a Cassandra ring.

3. Gossip is a data exchange protocol.

4. The decommission and removenode commands are same.

Q.2. Fill in the blanks.

1. _______________ is the command used to run compactions.

2. _______________ is the command to get the information about a live node.

3. ___________ is the command that displays the entire cluster information.

Q.3. Execute the following use case to see Cassandra high availability and replications:

1. Creating a 4-node Cassandra cluster.

2. Creating a keyspace with a replication factor of 3.

3. Bringing down a Cassandra daemon on one the nodes.

4. Executing nestat on each node to see the data streaming.