Which of the following is an example of a syntax error in a JSON configuration file?

Using a colon to separate key and value

Using double quotes for strings

A missing comma between key-value pairs

A Linux administrator is configuring a new service. After editing the service's YAML configuration file, the service fails to start. The error log shows 'mapping values are not allowed in this context'. The administrator checks the file and sees the following lines: ```yaml server: port: 8080 host: localhost debug: true ``` What is the most likely cause of this error?

The value 'true' for 'debug' should be enclosed in quotes.

The 'server' key should be followed by a colon and a newline before the nested keys.

The 'debug' key is misspelled and should be 'debug_mode'.

The indentation is inconsistent; the 'port', 'host', and 'debug' keys are not aligned under the 'server' key.

What is the primary role of a digital certificate in system configuration and communication?

To provide a backup of the system's configuration files

To encrypt data in transit and verify the identity of the communicating parties

To define the network routing rules for the system

To store user passwords in a secure format

An API call is failing because the request body contains a syntax error. Which of the following is the most appropriate action to resolve this issue?

Increase the API timeout setting

Change the API endpoint to a different version

Validate the request body against the API's schema or documentation

In a public key infrastructure (PKI), what is the role of a certificate authority (CA)?

To monitor network traffic for security threats

To store the private keys of all users in the system

To issue and digitally sign certificates to verify the identity of entities

To encrypt all data transmitted over the network

CompTIAAutoOps+

Domain 2Objective 4

Troubleshoot Common Configuration Issues AT0-001 Practice Questions (Page 5)

Part of the System Configuration domain, which accounts for 25% of the AT0-001 exam. CompTIA does not publish an official question count, but from its 60-minute exam (~25–40 total, ~6–10 in this domain), expect 2–3 from this objective — we provide 27 practice questions to prepare you well beyond it. (estimate)

27questions here

6free pages

9concepts

25%of the exam

Questions 21–25

21foundation · easy
Which of the following is an example of a syntax error in a JSON configuration file?
Select an answer first
22application · medium
A Linux administrator is configuring a new service. After editing the service's YAML configuration file, the service fails to start. The error log shows 'mapping values are not allowed in this context'. The administrator checks the file and sees the following lines: ```yaml server: port: 8080 host: localhost debug: true ``` What is the most likely cause of this error?
Select an answer first
23foundation · easy
What is the primary role of a digital certificate in system configuration and communication?
Select an answer first
24foundation · easy
An API call is failing because the request body contains a syntax error. Which of the following is the most appropriate action to resolve this issue?
Select an answer first
25foundation · easy
In a public key infrastructure (PKI), what is the role of a certificate authority (CA)?
Select an answer first

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