Smartly Prepare Exam with Free Online Apache-Cassandra-Developer-Associate Practice Test

We offer the latest Apache-Cassandra-Developer-Associate practice test designed for free and effective online Apache Cassandra Developer Associate Certification certification preparation. It's a simulation of the real Apache-Cassandra-Developer-Associate exam experience, built to help you understand the structure, complexity, and topics you'll face on exam day.

Question 1

What values are stored in the pop column after the following sequence?

1. CREATE TABLE countries (

2. country text,

3. state text,

4. pop int STATIC,

5. PRIMARY KEY (country, state)

6. );

8. INSERT INTO countries (country, state, pop) VALUES ('USA', 'Oregon', 4200000);

9. INSERT INTO countries (country, state, pop) VALUES ('USA', 'Idaho', -1);

10. INSERT INTO countries (country, state, pop) VALUES ('USA', 'Idaho', 1700000);

Options :

A : 4200000, -1, 1700000

B : 4200000, 1700000

C : 4200000, -1

D : 1700000, 1700000

Answer: D

Question 2

You have a single datacenter 10-node cluster with a replication factor of 3.

What can NOT happen on an UPDATE query for one single row, when the consistency level is set to ONE?

Options :

A : An incoming write will go only to the first node that owns the requested row.

B : Only one node can properly complete the write

C : The other two replicas can miss the write.

D : Coordinator returns control back to the client after one single write is confirmed.

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. );

Options :

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

You execute queries with CL THREE on a single datacenter cluster with RF 3.

Why all operations are strongly consistent?

Options :

A : Because this is equivalent to the ANY consistency level.

B : Because CL THREE guarantees strong consistency.

C : Because RF 3 guarantees strong consistency.

D : Because there are 3 replicas in total and they must all confirm any read or write operation.

Answer: D

Question 5

What is an example of hybrid-cloud deployment?

Options :

A : Cassandra in on-premise data center accessed from AWS virtual machines.

B : Cassandra deployed on both on-premise and on Azure virtual machines.

C : Cassandra in two inter-connected on-premise data centers.

D : Cassandra in two separate on-premise data centers.

Answer: B