ECCouncil ICS-SCADA Cyber Security Practice Test - Questions Answers, Page 2

NIST Special Publication 800-82, 'Guide to Industrial Control Systems (ICS) Security,' provides guidance on securing industrial control systems, including SCADA systems, distributed control systems (DCS), and other control system configurations such as programmable logic controllers (PLC). It offers practices and recommendations for protecting and securing ICS systems against disruptions, malicious activities, and other threats to their integrity and availability.

Reference:

National Institute of Standards and Technology (NIST), 'Guide to Industrial Control Systems (ICS) Security'.

IPsec (Internet Protocol Security) has two modes: Transport mode and Tunnel mode.

Tunnel mode is used to create a secure connection tunnel between two endpoints (e.g., two gateways, or a client and a gateway) and it encapsulates the entire IP packet.

This mode not only protects the payload but also the header information of the original IP packet, thereby providing a higher level of security compared to Transport mode, which only protects the payload.

Reference

Kent, S. and Seo, K., 'Security Architecture for the Internet Protocol,' RFC 4301, December 2005.

'IPsec Services,' Microsoft TechNet.

The Wayback Machine is an internet service provided by the Internet Archive that allows users to see archived versions of web pages across time, enabling them to browse past versions of a website as it appeared on specific dates.

It captures and stores snapshots of web pages, making it an invaluable tool for accessing the historical state of a website or recovering content that has since been changed or deleted.

Other options like Google Cache may also show snapshots of web pages, but the Wayback Machine is dedicated to this purpose and holds a vast archive of historical web data.

Reference

Internet Archive: https://archive.org

'Using the Wayback Machine,' Internet Archive Help Center.