IBM Certification Big Data Architect 3

Question 1

In IBM Cloud Pak for Data, what is the primary purpose of the DataStage component?

Accepted Answer

ETL and data integration pipelines

Answer

IBM DataStage is an ETL tool within Cloud Pak for Data used to design, develop, and run data integration jobs.

Question 2

Which consistency model does Apache Cassandra use, and how does it align with IBM big data architecture recommendations for high availability?

Accepted Answer

Eventual consistency with tunable read/write levels

Answer

Cassandra uses eventual consistency by default but allows tunable consistency levels per operation, enabling architects to balance availability and consistency.

Question 3

When implementing data tiering in an IBM big data solution, which storage tier is most appropriate for infrequently accessed cold data?

Accepted Answer

Object storage such as IBM Cloud Object Storage

Answer

Object storage like IBM Cloud Object Storage is cost-effective and highly durable, making it ideal for cold or archival data tiers.

Question 4

In IBM Db2 Big SQL, what technique allows queries to span both HDFS-resident data and traditional Db2 relational tables in a single statement?

Accepted Answer

Federated query with external table mappings

Answer

Big SQL supports federated queries using external table definitions that map HDFS data sources alongside local Db2 tables.

Question 5

An architect is designing an IBM streaming solution where out-of-order events are common. Which windowing strategy best handles late-arriving data?

Accepted Answer

Watermark-based event-time windows

Answer

Watermark-based event-time windowing tracks the progress of event time and allows configurable tolerance for late-arriving data.

IBM Certification Practice Test

IBM Certification Practice Test

IBM Certification Big Data Architect 3