MS-DS Master of Data science FREE Master of Data science Big Data Questions and Answers 3

Question 1

Which big data processing paradigm is best suited for computing results over unbounded, continuously arriving data?

Accepted Answer

Stream processing

Answer

Batch processing

Answer

Interactive querying

Answer

Graph processing

Question 2

What is the primary function of YARN in the Hadoop ecosystem?

Accepted Answer

Cluster resource management and job scheduling

Answer

Distributed file storage

Answer

SQL query processing

Answer

Data serialization

Question 3

Which data partitioning strategy assigns rows to partitions based on a hash function applied to a key column?

Accepted Answer

Hash partitioning

Answer

Range partitioning

Answer

Round-robin partitioning

Answer

List partitioning

Question 4

What problem does the concept of 'data skew' cause in distributed big data processing?

Accepted Answer

Uneven workload distribution causing some nodes to become bottlenecks

Answer

Data corruption during network transfers between nodes

Answer

Loss of data integrity when nodes fail during processing

Answer

Increased storage costs due to redundant data replication

Question 5

In a Lambda architecture for big data, what is the role of the speed layer?

Accepted Answer

Providing low-latency views of recent data not yet processed by the batch layer

Answer

Accelerating batch processing through in-memory computation

Answer

Compressing data for faster storage and retrieval

Answer

Load balancing queries across multiple serving nodes

Question 6

Which technique allows big data systems to estimate the number of distinct elements in a dataset using minimal memory?

Accepted Answer

HyperLogLog

Answer

Bloom filter

Answer

Count-Min Sketch

Answer

T-Digest