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

A multitenant application in SAP BTP Cloud Foundry:

Allows multiple tenants to access the same application instance (B).

Each consumer typically receives a unique subdomain or URL.

Supports dynamic scaling based on load and tenant activity (C).

Cloud Foundry autoscaling can scale app instances as needed.

Incorrect options:

A: Tenant isolation is ensured logically (e.g., via XSUAA or DB-level isolation), not shared memory.

D: Local file system is ephemeral and not tenant-specific; persistent storage is external.

Cloud Foundry CLI uses:

cf api to set or view the target Cloud Foundry API endpoint before logging in.

Other commands:

cf login: authenticate against the already-set endpoint.

cf target: view/set org and space.

cf endpoint: not a valid command.

CAP supports integration with external services using multiple API definition formats.

D – EDMX for OData V2 and V4

CAP can import OData services using:

EDMX files (OData V2/V4)

Metadata downloaded from SAP Business Accelerator Hub

cds import

This generates CDS definitions for entities, actions, and functions.

B – OpenAPI (Swagger)

For REST services, CAP supports:

Importing OpenAPI specifications

Generating CDS service proxies

Creating typed service clients

OpenAPI is the standard way to describe REST endpoints in CAP.

Why the Others Are Incorrect:

A – GraphQL schema

CAP does not directly import GraphQL schemas.

C – WSDL

WSDL (SOAP) is not directly consumed by CAP modeling tools.

TheSAP Cloud SDKis designed to simplify and standardize buildingside-by-side extensions(primarily in Java and JavaScript/TypeScript) for SAP S/4HANA and other SAP solutions.

Typical use cases described in the SDK documentation and training are:

Advanced features such as resilience and caching (B):The SDK providesresilience libraries(circuit breakers, retries, timeouts) andcaching mechanismsaround outbound calls to SAP S/4HANA. This allows backend developers to implement robustness and performance patterns without building them from scratch.

Add new features to an existing Java application (C):There are project templates and libraries forJava (Spring Boot). You can integrate the SDK into an existing Java application to call SAP S/4HANA APIs using the VDM and benefit from resilience, logging, and multitenancy support.

Why the other options are incorrect:

A – Allow key users to create fields:This relates toin-app extensibility (key-user extensibility)within SAP S/4HANA (for example, Custom Fields and Logic), not SAP Cloud SDK.

D – Build extensions using .NET:Officially supported runtimes for SAP Cloud SDK areJavaandJavaScript/TypeScript, not .NET.

In Cloud Foundry, when you deploy an application with cf push (without a pre-built container image), the platform runs astaging phase. During staging:

Abuildpackinspects the application, detects the runtime (for example, Node.js, Java, Python), anddownloads required dependencies.

It then produces adroplet, which is the runnable artifact containing the application and its runtime environment. This droplet is conceptually similar to acontainer imagethat is later executed by the platform.

Therefore, the role of the buildpack is best summarized as:

It builds the runtime image for applications during staging.

This matches optionD – It builds a container image for applications during staging.

Why the others are incorrect:

A – Binds services to applications:Service binding is managed by the Cloud Foundry platform (cf bind-service and environment variables), not by buildpacks.

B – User roles and permissions:Roles and permissions are handled by UAA/XSUAA and platform role assignments, not by buildpacks.

C – Database manager:Databases are provisioned as services; buildpacks do not manage database servers.

In SAP Continuous Integration and Delivery, each CI/CD job is linked to a remote Git repository.

DefiningSCM credentialsenables the job to:

Authenticate against Git (for example, GitHub, GitLab, SAP Git).

Retrieve theproject source codeduring pipeline execution.

Clone the repository and run build, test, and deploy steps.

This aligns precisely withA.

Incorrect options:

B:Credentials are not “managed” by the job; they are only used for authentication.

C:The CI/CD service never modifies source code automatically.

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.

OData plays a central role in CAP service exposure:

CRUD operations using HTTP verbs (A):CAP services expose entities over OData, supporting GET, POST, PATCH, PUT, and DELETE.

Define request/response behavior (C):OData standardizes request/response structures, headers, status codes, payload formats (JSON/XML), and protocol-level semantics.

Incorrect options:

B:UI generation is achieved by SAP Fiori Elements, not OData itself.

D:OData is not an analytics engine.

C – Define role templates in xs-security.json

xs-security.json is the core XSUAA configuration file. It defines:

Role templates

Scopes

Attributes

Authorization semantics

To secure the app, developers must definerole templates, which determine which scopes a role grants.

B – Use role names in application descriptors (web.xml in Java apps)

For Java web apps running via Tomcat/Servlet containers,web.xmldefines application-level roles and maps them to XSUAA role templates.

Thus, restricting access involves linking:

web.xml roles → XSUAA role templates → scopes → permissions

Why A and D Are Incorrect:

A:In xs-app.json, scopes define access rules forHTML5 apps via approuter, not Java applications.

D:Scopes belong to xs-security.json, but setting them alone does not restrict application access unless roles and mappings are defined. The question focuses onstepsto restrict access, and B + C describe the necessary actions.

CAP’s security architecture relies on:

XSUAA service (C):Provides OAuth 2.0 authorization, JWT tokens, scopes, and role templates for CAP services.

SAP Cloud Identity Services (D):Handles identity provisioning, authentication, and trust relationships, used along with XSUAA.

Comprehensive and Detailed Explanation

Authorization flow in SAP BTP:

Scopesare defined in XSUAA.

Scopes are grouped intorole templates.

Role templates becomerolesin the subaccount.

Roles are assigned tousers.

Role collections group roles for easier assignment.

If a user cannot access an app:

The most common cause is:

C – Roles aren’t assigned to the user

Without receiving the required role, the user’s JWT tokendoes not contain the required scopes.

Even if:

Scopes exist

Role templates exist

Role collections exist

…the user mustexplicitlyhave the role (or role collection) assigned.

Why the Others Are Incorrect:

A:Client applications don’t require role assignments.

B:Role collections may be assigned, butroleassignment is the critical missing piece in this scenario.

D:Client applications do not need role collections.

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.

@cap-js/telemetry enhances CAP observability and automatically publishesruntimeanddatabasemetrics.

B – Memory Usage Metrics

Telemetry captures Node.js process metrics such as:

Heap usage

Resident Set Size (RSS)

Garbage collection metrics

Memory allocations and consumption patterns

These help diagnose memory leaks or heavy load conditions.

C – Database Pool Statistics

Telemetry gathers database-layer metrics such as:

Active/idle database connections

Pool usage and saturation

Connection acquisition time

Query execution statistics

These metrics are critical for diagnosing bottlenecks in SAP HANA Cloud or SQLite adapters.

Why the Others Are Incorrect:

A – Network latency and jitter:

Telemetry does not measure network latency at the protocol layer.

This requires external APM or monitoring tools.

D – CPU allocation / thread management:

CAP telemetry exposes basic CPU metrics only through Node.js process stats but does not provide deep OS-level CPU or thread-management metrics.

The Destination Service stores:

Endpoints

Authentication information

Configuration for external APIs or systems

This service is used by CAP applications to call external OData, REST, SOAP, or custom APIs.

Incorrect options:

A – Connectivity Service: Provides on-premise connectivity via Cloud Connector; does not store the metadata itself.

C – Core Data Service: CDS is a modeling language, not a BTP service.

Comprehensive and Detailed Explanation

Kubernetes is acontainer orchestration platformused to:

Deploy containers

Scale applications horizontally

Perform rolling updates

Maintain desired state

Manage service discovery and networking

Automate fault recovery

Thus, Kubernetes is fundamentally aboutmanaging deployment, scaling, and lifecycle of containerized applications.

Why the Others Are Incorrect:

A:Development happens outside Kubernetes.

B:Virtual machines are managed by cloud infrastructure, not Kubernetes.

C:Kubernetes schedules containers on OS nodes; it doesn't manage the OS itself.

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 CI/CD jobsalways operate on Git repositories.

Therefore, before creating a job:

The projectmust be committed and pushedto a remote Git repository such as GitHub, GitLab, or SAP’s Git service.

CI/CD pipelines use the repository to clone code, build, test, and deploy.

Without a Git repository, the CI/CD pipeline cannot function.

Incorrect options:

B:Deployment is theoutput, not a prerequisite.

C:Previewing is irrelevant to CI/CD setup.