Question: How to start Memcached?

Answer

To start Memcached, you need to have it installed on your system. Once installed, you can start it with the following steps:

1. Open a terminal or command prompt.
2. Type the following command to start Memcached:
   ```
   memcached
   ```

By default, this will start Memcached on port 11211 and with a cache size of 64MB.

You can also specify options when starting Memcached. For example, to start Memcached with a larger cache size of 128MB and on a different port, use the following command:

```
memcached -m 128 -p 11212
```
In this example, -m specifies the cache size in megabytes, and -p specifies the port number.

If you want to run Memcached as a background process, you can add the -d option like this:
```
memcached -d
```
This will start Memcached in daemon mode.

Once Memcached is running, you can then connect to it using a Memcached client library from your programming language of choice.

That's it! You now know how to start Memcached on your system.