C_ABAPD_2507 SAP Certified Associate - Back-End Developer - ABAP Cloud Questions and Answers

Comprehensive and Detailed Explanation From Exact Extract:

Use ABAP Development Tools (ADT) in Eclipse: For ABAP Cloud development, ADT must be used, and modern object types such as CDS View Entities and Behavior Definitions can only be edited in ADT. This confirms option B.

Use SAP-released/predefined extension points: RAP extensibility is opt-in; every possible extension point must be defined explicitly in the original BO artifacts. Extensions are performed only at these predefined points to ensure lifecycle stability—this is exactly the “use SAP-released extension points” rule. This confirms option A.

In contrast, directly modifying SAP objects is not part of the clean-core, upgrade-stable model for public cloud; extensions must adhere to released APIs and predefined points (therefore C is not correct). The classic Web Dynpro UI technology is not the target for ABAP Cloud development in S/4HANA Cloud public edition (therefore D is not correct). (Context anchored by the extensibility/clean-core guidance above.)

Study-Guide anchors: ABAP Cloud development with ADT only; RAP opt-in extensibility and predefined extension points for cloud-ready, upgrade-safe extensions.

Comprehensive and Detailed Explanation from Exact Extract:

A → Recommended to define attributes for message placeholders.

C → Inheriting from cx_static_check enforces compile-time checks to ensure exceptions are handled.

E → Implementing if_t100_message allows integration with message classes.

B → Misleading, design-time warning is about handling, not raising.

D → Not a recommended practice in ABAP Cloud (system classes are not extendable).

Study Guide Reference: ABAP Objects Guide – Defining Exception Classes.

Comprehensive and Detailed Explanation From Exact Extract:

SAP recommends using CDS view entities over classic CDS DDIC-based views due to the following benefits:

Simpler and stricter syntax: CDS view entities enforce a clearer separation of concerns and reduce ambiguity, which helps ensure consistency across the stack. This makes Option C correct.

Elimination of the need for a database view: With CDS view entities, there's no dependency on a separate DDIC SQL view object, reducing redundancy and improving activation performance. This makes Option D correct.

Incorrect options:

Automated client handling (Option A) is supported in both CDS view entities and classic CDS views via annotations like @ClientHandling.

Simplified syntax check (Option B) is not a distinct feature of CDS view entities. Syntax checking is part of ABAP Development Tools regardless of the CDS flavor used.

Comprehensive and Detailed Explanation from Exact Extract:

CDS view parameters must be defined with types that are visible in the ABAP Dictionary.

A. Built-in ABAP Dictionary type → ✅ Supported (e.g., CURR, CHAR).

D. Data element → ✅ Supported, as data elements are dictionary-level types.

B. Built-in ABAP type (like i, string) → ❌ Not supported directly, CDS requires dictionary-compatible types.

C. Component of a structure → ❌ Not supported directly; parameters cannot reference structure components.

This ensures that CDS definitions remain database-compatible and semantically rich, which is critical for RAP services.

Verified Study Guide Reference: ABAP CDS Development Guide – Defining View Parameters.

Comprehensive and Detailed Explanation From Exact Extract:

In ABAP Cloud projects, structural changes to persisted artifacts must respect upgrade-safe contracts. Changes that alter the physical layout of a table (removing a column that comes via an included structure, or shortening the length of a column by changing its domain) lead to a database conversion because data type/column layout changes must be reconciled on the DB. While our RAP/CDS guides focus on modeling and service exposure, they emphasize strict, typed modeling and upgrade stability—any structural change that affects persistence is subject to strict checks and lifecycle handling.

By contrast, field labels (texts) do not change the physical table layout and thus don’t require a conversion.

Comprehensive and Detailed Explanation from Exact Extract:

ABAP Doc is the integrated documentation system for classes, interfaces, and methods. Rules:

Position → Must be placed directly after the declarative statement (B).

Translatable → ABAP Doc content can be translated (D).

Syntax → Each line must start with ! (E).

HTML tags (A) and repository links (C) are not supported.

Verified Study Guide Reference: ABAP Development Tools (ADT) Documentation – ABAP Doc Annotations and Rules.

Comprehensive and Detailed Explanation from Exact Extract:

In ABAP Cloud, string functions that support regular expressions (PCRE) include:

match( ) → returns the first substring matching the regex.

matches( ) → checks if the whole string matches the regex.

find( ) → finds a substring based on regex pattern.

Functions such as reverse( ) and condense( ) do not support regex patterns; they are purely string manipulation utilities.

Verified Study Guide Reference: ABAP Keyword Documentation – String Functions with Regular Expressions.

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:

ABAP Cloud rules are enforced by:

ABAP Compiler → performs syntax checks against ABAP Cloud rules.

ABAP Runtime Checks → ensure runtime compliance with rules (e.g., avoiding calls to unreleased APIs).

Release contracts and platform reuse services are enablers but do not enforce rules automatically.

Verified Study Guide Reference: ABAP Cloud Documentation – Rule Enforcement via Compiler and Runtime.

Comprehensive and Detailed Explanation from Exact Extract:

In RAP, the Projection View is designed to expose only the fields relevant for a specific app, keeping the UI lean and controlled.

Metadata extension → adds UI-related metadata, not fields.

Database view → technical representation, not app-specific.

Data model view → defines the data structure, not app-specific projection.

Verified by RAP documentation: Projection views are application-specific representations of the underlying data model.

Study Guide Reference: SAP RAP Help – Business Object Projection Layer.

Comprehensive and Detailed Explanation from Exact Extract:

Tier 1 extensibility in ABAP Cloud corresponds to the safe and upgrade-stable extension layer.

Adding custom fields to released DB tables or CDS views via released extension includes is fully supported.

Using classic user exits (A), manual note corrections (C), or wrappers for unreleased APIs (D) belong to Tier 2 or Tier 3, and are not part of Tier 1 safe extensibility.

This guarantees that custom code in Tier 1 is cloud-ready, upgrade-stable, and based only on released extension points and APIs.

Verified Study Guide Reference: ABAP Cloud Extensibility Model – Three-Tier Extensibility Rules.

Comprehensive and Detailed Explanation From Exact Extract:

In ABAP SQL, the handling of arithmetic operations — especially division — is handled with care for data types and precision. Here’s how each applies:

B. Numeric function division(numerator, denominator, decimal places) accepts decimal inputThis is correct. The division function is designed for decimal-based calculations, where precision control is needed via the third parameter (number of decimal places). It supports packed numbers (DEC).

C. Numeric function div(numerator, denominator) expects only integer inputThis is correct. The div function is an integer division operator, returning an integer result and only accepts integers as input types.

E. Numeric function division(numerator, denominator, decimal places) accepts floating point inputThis is correct. In addition to decimals, division() can also work with floating point types (FLTP), enabling flexible division where decimals are not sufficient.

A. The division operator “/” accepts decimal inputThis is incorrect in the context of ABAP SQL. The / operator is not available as a built-in operator in Open SQL; arithmetic operations like this are not supported with native operators — only via functions.

D. The division operator “/” accepts floating point inputAgain, this is incorrect, as / is not valid syntax in ABAP SQL queries. Only built-in functions like div or division are supported in the CDS/Open SQL layer.

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:

p (packed number) is a complete type, as it includes decimal places and precision definition.

d (date), c (character), n (numeric text) are incomplete types; they require length specification.

Study Guide Reference: ABAP Keyword Documentation – Predefined ABAP Types.

Comprehensive and Detailed Explanation From Exact Extract:

The correct way to change the contents of a row in an internal table is by using the MODIFY statement.

MODIFY allows updating the existing entry in an internal table based on its key or position.

If the row exists, the statement replaces the data; if not, it inserts a new row depending on the internal table type and whether a key is specified.

INSERT adds new rows but does not modify.

APPEND adds entries at the end, and UPDATE is for database tables, not internal tables.

This behavior is consistent with the ABAP programming model used in both classical and RAP-based developments when manipulating internal collections or buffering data in memory during behavior pool execution.

Comprehensive and Detailed Explanation from Exact Extract:

A watchpoint halts program execution when the content of a specified variable changes.

Exception breakpoints → Trigger when exceptions are raised.

Conditional breakpoints → Stop only if a Boolean condition is true at that line.

Thus, watchpoint is the correct tool for variable-change monitoring.

Study Guide Reference: ABAP Debugging Guide – Breakpoints and Watchpoints.

Comprehensive and Detailed Explanation from Exact Extract:

In ABAP CDS access controls, the technique used is inheritance, which allows one access control object to reuse rules defined in another.

This makes authorization definitions consistent, reusable, and maintainable, which is essential in RAP applications where business objects require layered and reusable authorization concepts.

Options such as Redefinition, Singleton, or Casting belong to OO concepts, not to access control in CDS.

Verified Study Guide Reference: ABAP Cloud Documentation – Defining Access Controls in CDS and RAP BOs.

Comprehensive and Detailed Explanation From Exact Extract:

RAP defines the architecture for OData services based on CDS semantic data models and ABAP behavior—this is the current model.

The predecessor is the ABAP Programming Model for SAP Fiori (BOPF/CDS-based), which can be migrated into RAP; it also exposes ABAP backend logic via CDS semantics.

ABAP Cloud Development Model (B) is the rule set/contract (release contracts, checks), not the service-building model. CAP (C) targets Node.js/Java on BTP, not ABAP-based backend services.

Comprehensive and Detailed Explanation from Exact Extract:

Extensions in SAP S/4HANA Cloud must follow the ABAP Cloud Extensibility Model.

Use released APIs (D) → Only released and whitelisted APIs are permitted.

Use predefined extension points (B) → Extensions can only be made where SAP has defined extension includes or APIs.

Build at UX layer (A) and Use CI/CD pipelines (C) are good practices but not mandatory extension rules.

Study Guide Reference: ABAP Extension Guide – Extensibility Rules for Public Cloud.

Comprehensive and Detailed Explanation From Exact Extract:

ABAP SQL (also known as Open SQL):

Is fully integrated in the ABAP language and supports embedded use with host variables, making Option B correct.

Is first processed by the ABAP Database Interface, which translates Open SQL into the database-specific native SQL. Hence, Option A is also correct.

Option C is incorrect because ABAP SQL is not directly executed on HANA or any database; it is interpreted and adapted by the ABAP layer.

Option D is incorrect because ABAP SQL is not restricted to HANA; it is database-agnostic and works across different supported DBs.

Comprehensive and Detailed Explanation from Exact Extract:

The ABAP DATA statement declares a variable with an assigned type.

A. Private type in the same class (ZCL_CLASS_A) → ✅ Allowed. A class can use its own local type definitions, declared using TYPES.

B. Domain from ABAP Dictionary → ❌ Not allowed directly. Domains define technical attributes but cannot be referenced directly in DATA; they must be wrapped in a data element.

C. Type defined privately in another class → ❌ Not accessible, since private definitions are encapsulated.

D. Data element from ABAP Dictionary → ✅ Allowed, because data elements are global dictionary objects.

This follows ABAP Cloud extensibility rules, ensuring encapsulation and strict typing.

Verified Study Guide Reference: ABAP Dictionary Development Guide, ABAP Cloud Back-End Developer Learning Material (Variable Typing and Encapsulation).