## Overview

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> [!NOTE]
> - This lab only supports Chrome browser.

In this lab, you perform a few tasks to maintain a TiDB cluster, including upgrading, scale-in and scale-out, monitoring, as well as using placement rules. The diagram below illustrates the deployment topology of the TiDB cluster at its initial status.

![60%](https://lab-static.pingcap.com/quick-demo/TiDBClusterDeploymentTopologyExercise_aa_007_20220914.png)

> [!TIP]
> Click **Start** to launch the lab environment.
> Once the environment is ready, select **Next** on the bottom toolbar to advance to **Module 1**.
> And, follow the step-by-step lab guide to connect to the hands-on environment and begin your tasks.