Free Practice Questions for SAP C_ABAPD_2507 Exam

Comprehensive and Detailed Explanation From Exact Extract:

In the ABAP RESTful Application Programming Model (RAP), validations are used to ensure that business rules and constraints are fulfilled, including the uniqueness of semantic keys.

A semantic key represents a natural identifier (e.g., employee number, product ID) and not a technical surrogate key. Validations can be:

Field-level validations – used to validate input for single fields.

Entity-level validations – used to validate logical conditions like uniqueness of a key combination.

The uniqueness check is typically enforced using a custom validation implementation in the behavior pool.

Action (Option A) is used for operations triggered by the user or system but not for enforcing uniqueness.

Determination (Option C) is used for automatically computing or adjusting field values, not for enforcing uniqueness.

Comprehensive and Detailed Explanation From Exact Extract:

CDS View Entities are the successor of classic DDIC-based CDS views and do not use the CDS-managed DDIC view; therefore @AbapCatalog.sqlViewName (used for classic DDIC-based views) is not required for view entities. This eliminates option B.

RAP and CDS modeling rely on key fields identified by the keyword key in the underlying CDS view to uniquely identify instances; this key is fundamental for BOs and their sources. A view entity without any key elements therefore lacks a primary key and will not pass activation. This supports option A.

Authorization annotations are component annotations; their absence does not by itself block first-time activation of a CDS entity. This rules out option D as the primary cause.

Study-Guide anchors: CDS View Entities (successor of DDIC-based views; no SQL view name), requirement for key elements to define primary keys, and activation behavior for component annotations.

Comprehensive and Detailed Explanation from Exact Extract:

Pragmas (##) are evaluated by the syntax check and runtime check tools (e.g., ATC, Code Inspector). ##NEEDED is recognized and processed (C).

Pseudo-comments (#EC) are not checked; they are legacy directives to suppress specific findings, hence (D) is correct.

Therefore, A and B are invalid.

Study Guide Reference: ABAP Cloud Guidelines – Pseudo-comments vs Pragmas.

Comprehensive and Detailed Explanation from Exact Extract:

A DATS field is stored as YYYYMMDD.

Option A: substring( flight_date, 5, 2 ) → Extracts characters 5–6 → correct month.

Option B: right( left( flight_date, 6 ), 2 ) → Takes first 6 chars YYYYMM, then last 2 → correct month.

Option C: Wrong, extracts last 2 chars of MMDD, results in day not month.

Option D: Wrong, starts at 4 → gives YM instead of MM.

Study Guide Reference: ABAP CDS Development Guide – String Functions in CDS.

Comprehensive and Detailed Explanation from Exact Extract:

Behavior Definition (BDEF) is where read-only, mandatory, and transactional rules are enforced across all RAP applications.

Projection view → restricts fields per app, not globally.

Metadata extension → UI annotations only.

Service definition → defines exposure, not behavior.

Therefore, setting field read-only in the behavior definition enforces it globally across all RAP BO usages.

Study Guide Reference: RAP Development Guide – Behavior Definitions and Field Control.

Comprehensive and Detailed Explanation from Exact Extract:

In RAP, changes to business object data are performed using Entity Manipulation Language (EML).

It provides ABAP statements such as READ ENTITIES, MODIFY ENTITIES, CREATE, and DELETE for RAP BOs.

EML is the cloud-compliant equivalent of SQL DML (insert/update/delete) but tailored to RAP’s transactional consistency.

Verified Study Guide Reference: RAP Programming Model – Entity Manipulation Language (EML).

Comprehensive and Detailed Explanation from Exact Extract:

In CDS UNION, field names and positions must match exactly across all SELECT statements.

In this case, the first SELECT uses id, while the second uses agencynum AS id, which is fine. However, the literal 'Customer' AS partner and 'Agency' AS partner create inconsistencies.

SAP CDS guidelines specify that for a UNION, field names must be identical and aligned in order; mismatches cause an activation error.

Study Guide Reference: ABAP CDS Development User Guide – Union Compatibility Rules.

Comprehensive and Detailed Explanation From Exact Extract:

Sorted tables:

Full key lookup uses a binary search → efficient (A).

Left-aligned partial key lookup also benefits from sort order to find ranges efficiently (C).

Hashed tables:

Require the complete key for O(1) access; partial key is not supported. Hence (E) is correct and (D) is not.

Standard tables:

Have no inherent ordering/index for key-based access; specifying a key (even partially) results in linear search unless you maintain sort and specify BINARY SEARCH explicitly, which still doesn’t change the fundamental case in this question; thus (B) is not considered a faster pattern here.

Study Guide Reference: ABAP Cloud Programming—Internal Tables (standard/sorted/hashed) performance characteristics.

Comprehensive and Detailed Explanation from Exact Extract:

avg(expr) → ✅ Allows numeric expressions (e.g., (f1 + f2) / 2).

sum(expr) → ✅ Accepts numeric expressions.

max() → ❌ Requires a single column, not expressions.

count(*) → ❌ Counts rows only, doesn’t accept expressions.

Study Guide Reference: ABAP SQL Documentation – Aggregate Functions.

Comprehensive and Detailed Explanation From Exact Extract:

In the RAP model, a Business Object (BO) is composed of the following key parts:

A CDS view, which defines the data model layer (entity structure, projections, associations).

A Behavior Definition (BDEF), which defines the behavior layer – what operations can be performed (create, update, delete, validations, determinations).

Therefore:

Option B and C are correct.

Option A is incorrect because "Process definition" is not a RAP construct; process logic is handled via behavior implementation and determinations.

Option D is incorrect because "Authentication rules" are managed externally (e.g., via IAM, authorizations), not inside the BO.