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100+ Free OutSystems Platform Ops Engineer Practice Questions

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An operations engineer needs to view the real-time status of the most important platform services and indicators for one environment. Which Service Center area provides this overview?

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2026 Statistics

Key Facts: OutSystems Platform Ops Engineer Exam

~$100

Exam Fee (USD, varies by region)

OutSystems

~70%

Passing Score

OutSystems

90 min

Exam Duration

OutSystems

~30-50

Question Count (varies)

OutSystems

4 core

Platform Server services tested

OutSystems documentation

O11

Platform version the exam targets

OutSystems

The OutSystems Professional Platform Ops Engineer (O11) is a proctored multiple-choice exam for Operations Engineers and Sysadmins, costing roughly $100 USD with about a 70% passing score in 90 minutes. It typically presents around 30 to 50 questions covering Platform Server services (Deployment Controller, Deployment Service, Scheduler, Log Service), the Configuration Tool and database setup, Service Center and LifeTime monitoring and logging, performance tuning and horizontal scaling with front-ends and load balancers, and maintenance, backups, and high availability. The credential is tied to the OutSystems 11 platform version, and OutSystems does not publish a public pass rate.

Sample OutSystems Platform Ops Engineer Practice Questions

Try these sample questions to test your OutSystems Platform Ops Engineer exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which OutSystems Platform Server service is responsible for compiling application code and orchestrating the automated deployment of that code to the front-end servers in an environment?
A.Deployment Controller service
B.Deployment Service
C.Scheduler service
D.Log service
Explanation: The Deployment Controller service compiles OutSystems application code and coordinates deploying the resulting binaries to every front-end in the environment, ensuring installation is consistent across the farm. Each environment (Development, QA, Pre-Production, Production) must have exactly one server running the Deployment Controller role.
2On a front-end server, which OutSystems service installs the compiled application code locally after the Deployment Controller has finished compiling it?
A.Deployment Service
B.Deployment Controller service
C.Scheduler service
D.SMS Connector service
Explanation: The Deployment Service (DeployService.exe) runs on each application server and is responsible for deploying OutSystems applications onto that specific server. It receives the compiled output from the Deployment Controller and installs it locally, which is why every front-end runs its own Deployment Service.
3Which OutSystems Platform Server service is responsible for triggering asynchronous processes such as timers, BPT business processes, and the sending of emails?
A.Scheduler service
B.Deployment Service
C.Log service
D.Deployment Controller service
Explanation: The Scheduler service triggers asynchronous processing on the platform: it fires timers on their schedule, advances Business Process Technology (BPT) processes, and dispatches queued emails. Because heavy timer load competes with user requests, OutSystems lets you run the Scheduler only on dedicated servers or zones.
4During Platform Server startup, the Deployment and Scheduler services must successfully connect to which service before they can finish initializing?
A.The Deployment Controller service
B.The Log service
C.Microsoft Message Queuing (MSMQ)
D.Internet Information Services (IIS)
Explanation: On startup, Log and Controller initialize on their own, but the Deployment and Scheduler services must connect to the Deployment Controller to complete initialization. If the Controller has not finished initializing, they log a connection error and retry until the Controller is available, so the Controller should be healthy first.
5In an OutSystems infrastructure, which console is the centralized tool used to manage environments, application lifecycle, IT users, and security across all registered environments?
A.LifeTime
B.Service Center
C.Service Studio
D.Integration Studio
Explanation: LifeTime is the centralized infrastructure management console. It registers and manages all environments (Dev, QA, Production), drives application deployments across them, and centrally administers IT users, roles, and security. Because roles in LifeTime are scoped across environments, an Administrator there is an administrator everywhere.
6Which OutSystems web console is used to manage, monitor, and configure a single environment, including viewing its error and general logs and controlling timers?
A.LifeTime
B.Service Center
C.Service Studio
D.Forge
Explanation: Service Center is the per-environment administration console reachable at <environment>/ServiceCenter. It exposes monitoring tabs for errors, general logs, integrations, and timers, plus module configuration, site properties, and the Environment Health check. Each environment has its own Service Center.
7An operations engineer must scale an OutSystems environment to handle increased end-user load by adding more application servers. Which server role should be added?
A.Additional Deployment Controller servers
B.Additional LifeTime servers
C.Additional database catalogs
D.Additional front-end servers
Explanation: Horizontal scaling in OutSystems means adding front-end servers to the farm. The platform automatically synchronizes and deploys all applications to each new front-end, and a load balancer distributes traffic across them. Only one Deployment Controller is allowed per environment, so you do not add more of those to scale user load.
8Why does OutSystems recommend NOT enabling sticky sessions on a Layer 7 load balancer in front of an OutSystems front-end farm?
A.Sticky sessions are required because sessions are stored locally on each front-end
B.OutSystems stores sessions in a centralized database, so sticky sessions only cause uneven load distribution
C.Sticky sessions break the Deployment Controller's compilation process
D.Sticky sessions disable the Scheduler service on secondary front-ends
Explanation: OutSystems manages all user sessions in a centralized session database accessed by every front-end, so any request can be served by any server without losing the session. Enabling sticky sessions pins users to one server, which causes uneven load distribution and undermines the benefit of the farm. Round-robin is the recommended distribution.
9Which load-balancing distribution algorithm does OutSystems recommend for spreading traffic evenly across front-end servers in a farm?
A.Least connections with sticky sessions
B.IP source affinity
C.Weighted by front-end memory usage
D.Round-robin
Explanation: Because OutSystems keeps sessions in a central database and any front-end can serve any request, round-robin is the recommended algorithm for even, predictable distribution. OutSystems also strongly recommends a load balancer that does not manipulate traffic, supporting both Layer 4 and Layer 7 as long as stickiness is avoided.
10Where does the OutSystems platform store end-user web and mobile sessions so that any front-end in a farm can handle a user's subsequent requests?
A.In a centralized session database
B.In memory on each front-end server
C.In the load balancer's cookie store
D.In the Windows registry of the Deployment Controller
Explanation: OutSystems stores web and mobile user sessions in a centralized session database, often on a dedicated schema, that all front-ends can read. This is what allows requests from the same user to be distributed across any front-end in the farm without re-authentication and makes sticky sessions unnecessary.

About the OutSystems Platform Ops Engineer Exam

The OutSystems Professional Platform Ops Engineer (O11) exam validates the fundamentals of managing, operating, and troubleshooting the OutSystems platform. It targets Operations Engineers and Sysadmins who understand the OutSystems components and services and know what it takes to run an OutSystems infrastructure according to scalability and redundancy requirements. The blueprint covers Platform Server services (Deployment Controller, Deployment Service, Scheduler, and Log Service), the Configuration Tool and database setup, monitoring and logging through Service Center and LifeTime, performance tuning and horizontal scaling with front-ends and load balancers, and maintenance, backups, and high availability. OutSystems highly recommends attending the 5-day Platform Ops Boot Camp to prepare.

Questions

50 scored questions

Time Limit

90 minutes

Passing Score

Approximately 70%

Exam Fee

Approximately $100 (OutSystems)

OutSystems Platform Ops Engineer Exam Content Outline

20-25%

OutSystems platform components and services architecture

Platform Server services and their roles: the Deployment Controller (CompilerService) compiles code and coordinates deployment, the Deployment Service installs apps locally, the Scheduler triggers timers, BPT, and emails, and the Log Service writes logs. Includes server roles, LifeTime versus Service Center, the centralized session database, and standard .NET plus HTML/CSS/JavaScript code generation.

20-25%

Installation, configuration, and infrastructure management

Configuration Tool tabs (Platform, Log, Session, Controller, Cache, Network, Scheduler), supported databases (SQL Server, Azure SQL, Oracle with Mixed Mode for SQL authentication), service accounts (Admin runs Controller/Deployment, Runtime runs Scheduler), IIS application pools (dedicated pool for Service Center and LifeTime), and adding front-end servers and LifeTime.

20-25%

Monitoring, logging, and troubleshooting

Service Center Monitoring (Errors, General Log, Integrations, Timers, Environment Health), the oslog log tables and views with weekly rotation and retention (4 weeks on-premises default, 9 weeks Cloud, 7 weeks with log separation), Log Service queue and Message Queuing recovery, Windows Event Viewer for service errors, SLOWQUERY and APDEX, audit logs, and log streaming to external tools.

15-20%

Performance tuning and scaling the platform

Horizontal scaling by adding front-ends (auto-synced apps), load balancing with Layer 4/7 and round-robin while avoiding sticky sessions because sessions are centralized, isolating timers with zones, tuning IIS recycling, cache invalidation with RabbitMQ for high availability, and using a CDN while preventing stale cache.

15-20%

Maintenance, backups, and high availability

Backup strategies (log, differential, and full backups; automated daily Cloud backups), disaster recovery and cross-region testing, high-availability database standby replicas and availability zones, balanced platform upgrades with module preparation and deployment, factory cleanup with data purge timers and DBCleaner, and stateless front-end recovery.

How to Pass the OutSystems Platform Ops Engineer Exam

What You Need to Know

  • Passing score: Approximately 70%
  • Exam length: 50 questions
  • Time limit: 90 minutes
  • Exam fee: Approximately $100

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

OutSystems Platform Ops Engineer Study Tips from Top Performers

1Memorize each Platform Server service and its executable: Deployment Controller (CompilerService.exe), Deployment Service (DeployService.exe), Scheduler (Scheduler.exe), and Log Service (LogServer.exe), plus which connect to the Controller to initialize.
2Understand why OutSystems sessions are centralized and how that makes sticky sessions harmful, enables Layer 4/7 load balancing, and supports stateless front-end recovery and horizontal scaling.
3Know the Configuration Tool tabs (Platform, Log, Session, Controller, Cache, Network, Scheduler) and the rule that all front-end settings must match except the Scheduler configuration.
4Drill the monitoring story: Service Center Monitoring tabs and Environment Health, the oslog log tables with weekly rotation, log retention numbers (2-week UI, 4-week on-prem, 9-week Cloud, 7-week with separation), and where service errors go (Windows Event Viewer).
5Practice troubleshooting scenarios: a stopped Log Service, a growing log queue (restart Log Service and Message Queuing), and a Scheduler that cannot reach the Controller on startup.
6Review high availability and backups: standby database replicas, availability zones, balanced platform upgrades with module preparation and deployment steps, and disciplined factory cleanup with data purge timers and DBCleaner.

Frequently Asked Questions

What are the exam facts for the OutSystems Platform Ops Engineer certification?

It is a proctored multiple-choice exam for Operations Engineers and Sysadmins, costing roughly $100 USD with about a 70% passing score in 90 minutes. It typically presents around 30 to 50 questions and is tied to the OutSystems 11 platform version.

What does the Platform Ops Engineer exam cover?

It covers managing, operating, and troubleshooting the OutSystems platform: Platform Server services and architecture, installation and Configuration Tool setup, monitoring and logging via Service Center and LifeTime, performance tuning and scaling, and maintenance, backups, and high availability.

What are the OutSystems Platform Server services?

The core services are the Deployment Controller (compiles code and coordinates deployment), the Deployment Service (installs apps locally), the Scheduler (triggers timers, BPT processes, and emails), and the Log Service (writes logs to the database). Older versions also included the SMS Connector.

Why does OutSystems advise against sticky sessions on the load balancer?

OutSystems stores all user sessions in a centralized session database accessed by every front-end, so any server can serve any request. Sticky sessions only pin users to one server and cause uneven load distribution, so round-robin is recommended instead.

How long are OutSystems logs retained?

Service Center shows the last two weeks of logs. In the database, the default retention is about 4 weeks on self-managed installations (configurable in the Configuration Tool Log tab) and 9 weeks on OutSystems Cloud, or 7 weeks when log separation is active.

Is the Platform Ops Boot Camp required to take the exam?

No, the 5-day Platform Ops Boot Camp is not required, but OutSystems highly recommends it. The course teaches operating, maintaining, and monitoring an OutSystems infrastructure with hands-on best practices for a healthy, performant, and scalable platform.