Cloud Computing Unit 4

What is the primary advantage of parallel computing?

• It has no shared memory.

• It requires multiple computers.

• It saves time and money.

• It improves system scalability.

Which of the following is a characteristic of distributed computing?

• Processes tasks sequentially.

• Components are located at different locations.

• Has shared memory.

• Uses a single computer.

What does MapReduce primarily do?

• Processes data in a serial manner.

• Processes data in a distributed form.

• Requires a single processor.

• Eliminates the need for data replication.

Which of the following is NOT an advantage of Hadoop?

• Requires expensive hardware.

• Flexible data processing.

• High availability.

• Fault tolerance.

What is the role of the NameNode in HDFS?

• Stores the actual data.

• Handles user authentication.

• Processes the data.

• Manages the metadata.

Which of the following is a disadvantage of distributed computing?

• Improves system performance.

• Requires less hardware.

• Data security and sharing issues.

• Simplifies troubleshooting.

What is the main purpose of YARN in Hadoop?

• Job scheduling.

• Data processing.

• Data storage.

• Resource management.

Which of the following describes task-level parallelism?

• Processes data in a serial manner.

• Runs multiple tasks simultaneously on the same data.

• Executes multiple instructions per clock cycle.

• Uses larger words for processing.

What is a key feature of Twister?

• It does not support messaging.

• It requires a single server.

• It supports iterative MapReduce computations.

• It is a heavy-weight runtime.

Which of the following is a component of OpenStack?

• MapReduce.

• Hadoop.

• Nova.

• Twister.