Free Practice DataStax Apache-Cassandra-Developer-Associate Exam Questions 2025

Stay ahead with 100% Free Apache Cassandra Developer Associate Certification Apache-Cassandra-Developer-Associate Dumps Practice Questions

Page: 1 / 24

Total 118 Questions | Updated On: Apr 23, 2025

Add To Cart

Question 1

What is a NOT a valid limitation for Cassandra counters?

A : Counters cannot be used for columns part of the PRIMARY KEY of a table.

B : Counter values cannot go below zero.

C : The value of a counter cannot be set.

D : A table that contains a counter can only contain counters.

Answer: B

Question 2

When to use a secondary index?

A : When querying a table using a column that cannot normally be queried.

B : On tables with a counter column.

C : On a frequently updated or deleted column.

D : On high-cardinality columns.

Answer: A

Question 3

What is wrong with this user-defined type (UDT) definition?

1. CREATE TYPE States (

2. id uuid PRIMARY KEY,

3. name text

4. );

A : UDTs cannot declare primary keys.

B : UUID is not a valid CQL data type.

C : Must start by CREATE TYPE IF NOT EXISTS.

D : The name should be all lower cases.

Answer: A

Question 4

How to define the primary key of a Country table, if we want individual records by country and state, and filtered lists of cities by a population range?

A : PRIMARY KEY (country, state, city, population)

B : PRIMARY KEY ((country, state), city, population)

C : PRIMARY KEY ((country, state), population, city)

D : PRIMARY KEY (country, state, population, city)

Answer: C

Question 5

Consider the following keyspace definition:

1. CREATE KEYSPACE mykeyspace

2. WITH replication = {'class': 'NetworkTopologyStrategy', 'DC1': 3, 'DC2': 3};

DC1 has 4 nodes active and 2 down, DC2 has 3 nodes active and one down.

Which of the next statements is true?

A : A request with LOCAL_QUORUM on a healthy DC2 node will be handled by DC1.

B : A request with LOCAL_QUORUM on a healthy DC2 node will succeed.

C : A request with QUORUM on a healthy DC2 node will fail.

D : A request with LOCAL_QUORUM on a healthy DC1 node will fail.

Answer: B

Page: 1 / 24

Total 118 Questions | Updated On: Apr 23, 2025

Add To Cart