This is provided as a proof-of-concept and is not intended to actually be used to pass the cisco exams. Use this at your own risk.

This is unmaintained, you can find a more up-to-date alternative here.

To install the extension in chrome go to chrome://extensions/ and enable the Developer Mode in the upper right corner. A button called "Load unpacked" will appear on the left side. Click it and select the "extension" directory. Optionally move the extension into the chrome menu. (essentially hide it)

To install the extension in firefox go to about:debugging#/runtime/this-firefox and click on "Load temporary Add-on..." in the upper right corner. Select the manifest.json in the "extension" directory. You need to repeat this process when you restart firefox. (it's temporary)

Go to the cisco exam site, press P and enter the itexamanswers.net url where you want to scrape the answers from. The extension will fetch and parse the answers in the background.
Press A to answer a question and N to go to the next question.