Practice Consul 1.15 Health Checking questions with full explanations on every answer.
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An operator observes that a service is failing its HTTP health check because the application takes 15 seconds to start up, exceeding the default timeout. Which parameter should be adjusted in the service definition to prevent premature failure?
2You are monitoring service health using Consul and want to ensure that a service is automatically removed from the catalog if it remains in a 'critical' state for more than 24 hours. Which configuration key supports this?
3Which agent configuration allows you to specify the local address that the Consul agent binds to for performing health checks?
4A service has a TTL check configured with a 30-second TTL. If the application crashes and stops sending heartbeats, when will the service status change to 'critical'?
5When defining a TCP health check, what is the primary indicator that the check is 'passing'?
6You have configured a Script health check that executes a shell command. For security reasons, you want to restrict which scripts the Consul agent can run. What configuration setting must be set to 'false' in the agent configuration to disable script checks entirely?
7Which HTTP status code range does Consul interpret as a passing state for an HTTP health check?
8You are deploying a legacy application that does not support HTTP or TCP health checks. Which Consul health check type should you configure to allow the application to signal its own health via a heartbeat API call?
9Which configuration file format is preferred by Consul for defining service health checks?
10Which command line tool can you use to manually trigger a TTL check update for a specific service?
11What is the recommended approach for running health checks on a service that is part of a non-containerized, multi-process architecture?
12You are using Consul Template to observe health status. What happens to a service's health check status if the network segment between the agent and the server is partitioned and the server cannot contact the agent?
13When configuring a Service-specific health check, what is the impact of setting the 'expose' field to true?
14Which status indicates that a health check is successfully passing according to Consul?
15What is the purpose of the 'check' field inside a 'service' object in a Consul configuration file?
16When a health check is failing, which Consul API endpoint would you call to investigate the specific error message provided by the check?
17Which of the following is a valid method to update a TTL health check?
18In a Consul health check, what does the 'notes' field provide?
19You want to run a shell command as a health check. Which field in the service definition specifies the command to execute?
20What is the primary difference between a 'script' check and an 'http' check in terms of how they are processed by the Consul agent?
21What happens if you do not specify an 'interval' for a health check in the configuration?
22If a service has multiple health checks associated with it, when is the service itself considered 'critical'?
23When using the HTTP health check type, how can you verify that a specific header is included in the health check request?
24You are troubleshooting a health check that seems to be hanging. Which flag, if available, would provide more information about the check's execution within the agent logs?
25Which of the following are valid types of health checks in Consul? (Select TWO)
26If you need to perform an HTTP check over HTTPS, what configuration option is required to handle self-signed certificates?
27What is the consequence of having a service with no health checks registered?
28What information does the Consul HTTP API return for a health check? (Select TWO)
29Which feature allows you to define a health check that depends on the health of another service?
30You observe a 'warning' status for a service. What is the most common reason for this?
31Which of the following conditions can cause a health check to transition to the 'critical' state? (Select TWO)
32Which actions can you perform on a TTL check? (Select TWO)
33Which states can a health check report? (Select THREE)
34Where can you define health checks in Consul? (Select THREE)
35When troubleshooting a failing health check, which tools are recommended? (Select TWO)
36Which of these are required fields for a TCP health check definition? (Select THREE)
37What is true about Consul health checks? (Select TWO)
38What components can affect the outcome of a health check? (Select THREE)
39Which of the following are true regarding TTL checks? (Select TWO)
The Health Checking domain covers the key concepts tested in this area of the Consul 1.15 exam blueprint published by HashiCorp. Courseiva provides free domain-focused practice, mock exams, missed-question review, and readiness tracking across all Consul 1.15 domains — no account required.
The Courseiva Consul 1.15 question bank contains 39 questions in the Health Checking domain. Click any question to see the full explanation and answer breakdown.
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