CAD CAD Performance & Optimization 2

Question 1

Which SAPUI5 rendering optimization technique avoids re-rendering an entire list when only one item changes?

Accepted Answer

Using growingThreshold with client-side model updates and key-based diffing

Answer

Key-based list diffing combined with growingThreshold allows SAPUI5 to update only the changed item's DOM nodes rather than the entire list.

Question 2

What is the purpose of SAP HANA's partition pruning feature?

Accepted Answer

Skips partitions that cannot contain relevant rows based on the query filter, reducing scan scope

Answer

Partition pruning eliminates irrelevant partitions at query planning time, so HANA only scans partitions that can satisfy the filter predicate.

Question 3

In a CAD application using CAP (Cloud Application Programming Model), which caching annotation prevents repeated DB queries for static code-list entities?

Accepted Answer

@cds.autoexpose

Answer

@cds.autoexpose with read-only code lists allows CAP to serve these entities directly from in-process cache without hitting the database each time.

Question 4

Which HTTP response header should a CAD developer configure to enable browser caching of static SAPUI5 resources?

Accepted Answer

Cache-Control: max-age=31536000, immutable

Answer

Cache-Control: max-age with immutable tells browsers to cache static assets for one year without revalidation, eliminating redundant HTTP requests.

Question 5

What is the benefit of enabling SAP HANA's 'Result Cache' for analytical Calculation Views?

Accepted Answer

It reuses cached query results for identical queries within a configurable time window, avoiding re-computation

Answer

The HANA Result Cache stores the output of expensive Calculation View queries so identical subsequent queries return immediately from cache.

(CAD) Certified Application Developer Practice Test

(CAD) Certified Application Developer Practice Test

CAD CAD Performance & Optimization 2