SAP C_CPE_2409 SAP Certified Associate - Backend Developer - SAP Cloud Application Programming Model Exam Practice Test

For Node.js/TypeScript development with frameworks like NestJS, the environment supports:

Automatic rebuild (A): Tools like ts-node-dev or the Nest CLI recompile TypeScript on file changes.

Debug JavaScript/TypeScript with breakpoints (D): Visual Studio Code supports debugging Node.js applications and stopping on breakpoints.

Incorrect options:

B: Debugging Java applications requires JVM and Java tooling, not applicable to NestJS.

C: Auto-redeploy implies container or platform redeployment; local development normally only rebuilds and restarts, not redeploys.

CAP natively supports consumption of external services using:

C – OData

CAP provides:

OData service proxies

EDMX import

Automatic CDS generation

OData V2/V4 support

Query transformation & protocol handling

OData is the primary protocol for SAP S/4HANA APIs.

D – REST

CAP supports:

OpenAPI import

REST clients via CAP service proxies

Typed request/response handling

Destination-based outbound REST calls

Why the Others Are Incorrect:

A – WebSockets:

CAP does not provide native WebSocket consumption APIs.

B – SOAP:

SOAP is not supported directly; integrations require external libraries or wrappers.

Comprehensive and Detailed Explanation

AMultitarget Application (MTA)is the SAP-recommended packaging format for complex applications that involve multiple modules (for example, CAP service, UI, XSUAA, destination service). MTAs are deployed as .mtar archives using theCloud MTA Build Tool (mbt)anddeploy service.

Correct Options:

C – Using SAP Business Application Studio

SAP Business Application Studio includes:

A graphical MTA builder

Built-in Cloud MTA Build Tool

Deployment integration with SAP BTP

Wizards for generating mta.yaml

Developers can simply right-click the project →Build MTA→Deploy MTA Archive.

D – Manually creating and deploying the mta.yaml file

Developers can:

Write or update the mta.yaml (the deployment descriptor).

Use the Cloud MTA Build Tool to build the .mtar.

Deploy using the Cloud Foundry deploy service (cf deploy .mtar).

This is a fully supported and widely used approach.

Why the Other Options Are Incorrect:

A – SAP HANA Cloud tools:

These tools manage HANA databases, not MTAs.

B – cf push:

cf push deploys asingle module.

MTAs must be deployed viadeploy service, not cf push.

SAP BTP Cloud Foundry runtime is amanaged PaaS platform.

B – Managed security and automatic updates

The platform handles:

Operating system patching

Buildpack updates

Security vulnerability patches

Scaling and monitoring infrastructure

Developers do not manage OS, VM, clusters, or security baselines.

C – High availability with load balancing

Cloud Foundry natively provides:

Multiple application instances

Route-based load balancing

Health checks

Automatic restart of unhealthy instances

This ensureshigh availabilityfor deployed apps.

Why the Others Are Incorrect:

A:Scaling isautomatic, not manual. Developers can set autoscaling rules.

D:Service mesh is not part of Cloud Foundry; it belongs to Kubernetes-based runtimes (e.g., Kyma).

Comprehensive and Detailed Explanation

SAP Gardeneris an open-source project used by SAP BTP Kyma runtime as thecluster management layer.

Key responsibilities include:

Provisioning Kubernetes clusters on different hyperscalers

Managing lifecycle operations (creation, upgrade, repair)

Standardizing Kubernetes across cloud providers

Ensuring SLA-grade operations and reliability

Monitoring and auto-healing clusters

Kyma runtime runson top of Gardener-managed Kubernetes clusters, enabling SAP to deliver a fully managed Kubernetes experience.

Why the Other Options Are Incorrect:

A:Applications are deployed by the developer or CI/CD pipeline, not Gardener.

B:Subaccounts and instances belong to BTP cockpit—not Gardener.

The Kyma project (used in SAP BTP, Kyma runtime) is an extension framework that provides modular building blocks to extend applications using Kubernetes-native components. The official Kyma module list includes:

Serverless (A): Provides functions-as-a-service capabilities, enabling lightweight event-driven workloads.

Telemetry (C): Offers logging, metrics, and tracing capabilities enhancing observability.

API Gateway (E): Enables secure and managed exposure of APIs, including authentication and routing.

Incorrect options:

B – Data Warehouse: Not a Kyma module.

D – Storage: Storage is a Kubernetes concept, not a Kyma module.

A scope in XSUAA is:

A technical authorization value included in OAuth tokens.

Used to determine whether a user/app has permission to invoke specific CAP service operations.

Incorrect options:

A: Scopes do not store credentials.

C: Subaccounts are BTP landscape units.

D: Roles aggregate scopes, not vice versa.

In OData, theservice metadata document(typically accessed via the $metadata endpoint) is theformal description of the OData service. It is defined using the Conceptual Schema Definition Language (CSDL / EDMX).

The metadata document:

Describesentity types, complex types, and their properties(types).

Definesentity sets and singletons(sets).

Includes ODatafunctions and actions, together with parameters and return types.

Describes therelationships and navigation propertiesamong entities.

This matches optionD:“To describe the types, sets, functions, and actions.”

OptionB(“list the available entity sets, functions, and singletons”) is incomplete, since the document also defines types and relationships.

Why the others are incorrect:

A – API’s security requirements:Security is handled elsewhere (OAuth/XSUAA, configuration, API gateways), not in the OData metadata document.

C – Human-readable description:While a developer can read the XML, the primary intent is amachine-readableformal model for tools and clients.

Kyma is a Kubernetes extension framework that provides:

Eventing

Serverless functions

API Gateway

Observability modules

Application connectivity

It extends Kubernetes with enterprise-ready features, not replace it.

Incorrect options:

B: Kyma hosts applications but its purpose is extension, not pure development.

C: Kyma relies on Kubernetes; it does not replace it.

D: VM management is unrelated to Kyma.

When connecting from a CAP application to thesandboxof SAP API Business Hub (now SAP Business Accelerator Hub) for APIs such as theBusiness PartnerOData service, the learning content and examples describe that:

The sandbox environment is protected by anAPI keythat must be sent in a specific HTTP header (for example, APIKey or similar) with each request.

Tutorials for CAP/Cloud SDK and S/4HANA integration in a training context show configuration steps where developers obtain anAPI keyfrom the hub and configure it in a destination or in custom code for outbound calls.

This matches optionC – API key.

Why the other options are incorrect:

A – Client certificate:Client certificates are common for productive mutual TLS connections, not for the public sandbox.

B – Service principal:“Service principal” is an Azure-specific concept and not how the sandbox on SAP API Business Hub is accessed.

D – OAuth token:Many productive APIs use OAuth 2.0, but thesandboxin the official exercises is specifically accessed using an API key.

Comprehensive and Detailed Explanation

CAP supportsreal-time, event-driven architecturesusing:

D – Message Queues and Event Brokers

This includes:

SAP Event Mesh

Message brokers (AMQP, Kafka via integration adapters)

CAP domain events (emit, on)

Outbox pattern for guaranteed delivery

Event-driven communication between microservices

These features allow:

Loose coupling

Real-time synchronization

Trigger-based data propagation

Integration with SAP S/4HANA event channels

Handling asynchronous workloads

Why the Others Are Incorrect:

A:Database connectivity is synchronous and not event-based.

B:Service connectivity is request/response, not event-driven.

C:Service extensibility allows custom handlers, not messaging.

To expose a data model in CAP:

You needdata model entities (D)defined in CDS.

You must create aservice definitioncontainingservice entities (A)that expose selected data model entities.

Associations and aspects are optional modeling features and do not by themselves expose a model.

AMulti-Target Application (MTA)on SAP BTP is described by anMTA deployment descriptor:

This descriptor is stored in the filemta.yaml.

It defines the MTA’smodules(for example, CAP service, approuter, UI module) andresources(for example, XSUAA instance, destination service, database service).

Tools such as theCloud MTA Build Tool (mbt)read mta.yaml to create an .mtar archive that is deployed to Cloud Foundry.

Thus, the correct answer isA – mta.yaml.

Why the others are incorrect:

B – mta.json:Not used as the standard descriptor format in SAP BTP MTA scenarios.

C – mtad.yaml:In some older XS Advanced contexts, mtad.yaml is the deployment descriptor, but in the SAP BTP Cloud Foundry + CAP context the standard is mta.yaml.

D – manifest.json:This is often used for SAPUI5 applications (UI metadata), not for MTAs. Cloud Foundry deployment manifests use manifest.yml, not manifest.json.

Namespaces in CDS:

Group related entities and types (B):Namespaces help organize models into logical domains.

Manage version or ownership separation (C):Different namespaces allow parallel evolution of models or clearer ownership boundaries.

Incorrect options:

A:Namespaces have no impact on performance.

D:No styling semantics exist in CDS namespaces.

CAP development guidelines recommendSQLiteas the default database for local development because:

It requires no installation.

It supports CDS features needed for rapid prototyping.

It enables quick testing without deploying to SAP HANA.

For productive deployments, SAP HANA or SAP HANA Cloud is used, but SQLite remains the recommended local option.

Incorrect choices:

A – NoSQL:CAP does not support NoSQL databases as primary stores.

C – PostgreSQL:Supported via adapters, butnotthe recommended development default.

D – HANA Cloud:Used for production, not recommended for local development.

SAP BTP provides:

Integration (A): A full suite of integration services for apps, data, and processes.

Application Development (B): Tools and runtimes for building new extensions or applications.

Extensibility (C): Allows extending SAP S/4HANA Cloud, SuccessFactors, and on-premise systems side-by-side.

Incorrect option:

D – Build tightly coupled applications:

SAP BTP promotes loose coupling, modularity, and clean extension approaches.

SAP guarantees thatpublic APIs, CDS views, business events, and OData servicesexposed as “whitelisted” or “released” remainstable and backward compatibleacross quarterly upgrades.

Therefore:

Extensions built on these APIs continue functioning regardless of SAP internal changes.

SAP ensures upgrade compatibility through semantic versioning and API lifecycle policies.

Side-by-side and in-app extensibility both rely on stable released interfaces.

Thusoption C is the fundamental reasonwhy extensions remain unaffected.

Why the Others Are Incorrect:

A:The VDM may evolve, but stability is guaranteed only forreleased interfaces, not the whole VDM.

B:Running on BTP alone does not guarantee stability—stability comes from SAP’s API contract guarantee.

D:There is no mechanism that “freezes” APIs; SAP maintains them as stable by contract.