The exam mainly consists of multiple choice and true/false questions. In addition, there are type-in-the-command and UI-based questions. Some of the multiple choice questions are scenario-based questions to test your understanding of Consul usages.
Below are some examples so you can familiarize yourself with the exam format.
»True/false questions
»Q1: When starting the Consul agent with the consul agent -dev command, all core security features will be initialized with the agent.
🔘 True
🔘 False
❌ Incorrect: True
✅ Correct: False
»Q2: Individual agents are responsible for defining and monitoring their own services.
🔘 True
🔘 False
✅ Correct: True
❌ Incorrect: False
»Q3: Access Control Lists (ACLs) are used to secure access to the UI, API, CLI, service communications, and agent communications.
🔘 True
🔘 False
✅ Correct: True
❌ Incorrect: False
»Multiple choice questions
When there is more than one correct answer, the question explicitly states so. For example, "Choose TWO correct answers."
»Q4: Which protocol(s) need to be enabled in your network configuration to permit the nodes to communicate over the gossip protocol?
🔘 TCP and UDP
🔘 gRPC
🔘 SSL
🔘 HTTP and HTTPS
🔘 All of the above
✅ Correct: TCP and UDP
❌ Incorrect: gRPC
❌ Incorrect: SSL
❌ Incorrect: HTTP and HTTPS
❌ Incorrect: All of the above
»Q5: What are the benefits of using the Consul Enterprise feature of adding non-voting servers in a redundancy zone to your Consul datacenter? Choose two correct answers.
- Read-scalability
- Redundancy
- Increase quorum
- Segment your network
- Disaster recovery
✅ Correct: Read-scalability
✅ Correct: Redundancy
❌ Incorrect: Increase quorum
❌ Incorrect: Segment your network
❌ Incorrect: Disaster recovery
»Q6: You can query for services using the following HTTP API call.
$ curl http://localhost:8500/v1/catalog/service/web
The following response is returned:
[
{
"ID": "82f64bfa-22c2-5727-0f5d-0bae376f6584",
"Node": "Judiths-MBP.lan",
"Address": "127.0.0.1",
"Datacenter": "dc1",
"TaggedAddresses": {
"lan": "127.0.0.1",
"wan": "127.0.0.1"
},
"NodeMeta": {
"consul-network-segment": ""
},
"ServiceKind": "",
"ServiceID": "web",
"ServiceName": "web",
"ServiceTags": ["rails"],
"ServiceAddress": "",
"ServiceWeights": {
"Passing": 1,
"Warning": 1
},
"ServiceMeta": {},
"ServicePort": 80,
"ServiceEnableTagOverride": false,
"ServiceProxyDestination": "",
"ServiceProxy": {},
"ServiceConnect": {},
"CreateIndex": 10,
"ModifyIndex": 10
}
]
You want to retrieve a list of healthy instances of the service. Fill in the blank in the following command:
curl http://localhost:8500/v1/health/service/web______
- ?healthy
- ?valid-only
- ?available=true
- ?passing
- ?failing=false
❌ Incorrect: ?healthy
❌ Incorrect: ?valid-only
❌ Incorrect: ?available=true
✅ Correct: ?passing
❌ Incorrect: ?failing=false
»UI questions
»Q7: You notice the following error in the Consul UI. What is being indicated by the error?
🔘 The node hosting the Dashboard service is down.
🔘 The proxy in the service mesh has failed.
🔘 The dashboard service failed to register.
🔘 One or more health checks for the Dashboard service have failed.
❌ Incorrect: The node hosting the Dashboard service is down.
❌ Incorrect: The proxy in the service mesh has failed.
❌ Incorrect: The dashboard service failed to register.
✅ Correct: One or more health checks for the Dashboard service have failed.
»Q8: You navigate to the Intentions page in the Consul UI and see the following content. With this configuration, what will be the behavior of web -> api service communication?
🔘 All service to service communication will be denied, including web -> api.
🔘 The web service will be allowed to communicate with the api service.
🔘 Communication from web -> api can not occur until an api -> web rule is created.
🔘 The api service will be able to send traffic to web.
❌ Incorrect: All service to service communication will be denied, including web -> api.
✅ Correct: The web service will be allowed to communicate with the api service.
❌ Incorrect: Communication from web -> api can not occur until an api -> web rule is created.
❌ Incorrect: The api service will be able to send traffic to web.
»Next steps
The Review Guide lists a table of exam objectives with its corresponding documentation and the learn tutorial link. Use the table as your check-list to prepare for the exam.
