An organization has a custom connector that calls a third-party API. The API has a rate limit of 100 requests per minute. The Copilot Studio agent using this connector sometimes exceeds the limit, causing failures. The admin wants to reduce failures without changing the connector's code. What should they do?

Reduce the connector's timeout to fail faster.

Use a different custom connector that has no rate limit.

Increase the agent's computer usage CPU allocation to speed up calls.

Implement a retry policy with exponential backoff in the connector's configuration.

An organization has a custom connector that uses an API key for authentication. They want to use this connector in a Copilot Studio agent. What must they do to ensure the agent can authenticate?

Embed the API key in the agent's system prompt.

Provide the API key in the connector's authentication settings when adding it to the agent.

Convert the connector to use OAuth 2.0 before adding it.

Create a new REST API tool instead of using the connector.

A developer added a REST API tool to a Copilot Studio agent, but the agent fails to call it with a 401 error. The API uses OAuth 2.0 client credentials. What is the most likely cause?

The REST API tool is not enabled in the MCP catalog.

The agent's computer usage configuration is too restrictive.

The client ID or secret configured in the tool is incorrect or expired.

The agent's topic does not call the tool correctly.

An agent builder notices that a Copilot Studio agent that uses a custom connector tool is slow to respond during peak hours. The agent runs on a standard environment. What should the agent builder configure to improve performance?

Increase the timeout setting for the tool to allow more time for the connector to respond.

Adjust the computer usage settings to allocate more resources to the agent during peak hours.

Reduce the number of concurrent requests the agent makes to the connector.

Monitor the agent's resource usage to identify bottlenecks and then optimize the tool's configuration or scale the environment.

A company has an existing custom connector in Power Platform that calls an internal ERP system. They want to add this connector as a tool in a Copilot Studio agent so the agent can check order status. The connector is already shared with the team. What should the agent builder do?

Create a new REST API tool in Copilot Studio and manually configure the ERP endpoint and authentication.

In Copilot Studio, add a tool and select the existing custom connector from the list of available connectors.

Export the custom connector as a JSON file and import it into Copilot Studio as a new MCP tool.

Use the agent's built-in HTTP request action to call the ERP API directly, bypassing the connector.

Microsoft Certified:AI Agent Builder Associate

Domain 2Objective 2

Add Tools to Agents AB-620 Practice Questions (Page 2)

Part of the Integrate and extend agents in Copilot Studio domain, which accounts for 40–45% of the AB-620 exam. Microsoft does not publish an official question count, but from its 120-minute exam (~50–80 total, ~20–36 in this domain), expect 5–9 from this objective — we provide 28 practice questions to prepare you well beyond it. (estimate)

28questions here

6free pages

5concepts

40–45%of the exam

Questions 6–10

6expert · hard
An organization has a custom connector that calls a third-party API. The API has a rate limit of 100 requests per minute. The Copilot Studio agent using this connector sometimes exceeds the limit, causing failures. The admin wants to reduce failures without changing the connector's code. What should they do?
Select an answer first
7application · medium
An organization has a custom connector that uses an API key for authentication. They want to use this connector in a Copilot Studio agent. What must they do to ensure the agent can authenticate?
Select an answer first
8application · medium
A developer added a REST API tool to a Copilot Studio agent, but the agent fails to call it with a 401 error. The API uses OAuth 2.0 client credentials. What is the most likely cause?
Select an answer first
9application · medium
An agent builder notices that a Copilot Studio agent that uses a custom connector tool is slow to respond during peak hours. The agent runs on a standard environment. What should the agent builder configure to improve performance?
Select an answer first
10application · medium
A company has an existing custom connector in Power Platform that calls an internal ERP system. They want to add this connector as a tool in a Copilot Studio agent so the agent can check order status. The connector is already shared with the team. What should the agent builder do?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to AB-620

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by Microsoft. “AB-620” is a trademark of its owner, used for identification only.