The FREE Cybersecurity Glossary by Thor Pedersen!

Use my glossary to help in your CISSP, CISM, CC, Cybersecurity certification studying.

- Merkle Tree
Merkle Tree: A Merkle tree, named after Ralph Merkle, is a data structure in cryptography and computer science that consists of a hierarchical series of cryptographic hashes. Each non-leaf node is a hash of its respective children, and the hashes are organized into a binary tree. Merkle trees are used to efficiently and securely verify the contents of large data structures, such as the blocks in a blockchain, where they help confirm the integrity of transaction data.
- Modbus
Modbus: A communication protocol used in industrial automation systems to allow devices to communicate with each other and exchange data. It is commonly used in the manufacturing and energy industries to control and monitor equipment. Examples include using Modbus to control the temperature of a furnace in a factory or the flow of oil in a refinery.
- Multi-protocol Label Switching (MPLS)
Multi-protocol Label Switching (MPLS): A data-carrying technique that directs data from one network node to the next based on short path labels rather than long network addresses. The labels identify virtual links (paths) between distant nodes rather than endpoints, allowing for high-speed and flexible data transmission.
- MAC Filter or MAC Limiting
MAC Filter or MAC Limiting: MAC filtering, also known as MAC address filtering or MAC limiting, is a network access control technique where a network device, typically a router or switch, uses a list of allowed MAC addresses to determine which devices can connect to the network. Unauthorized devices with MAC addresses not on the list are blocked. This method can improve network security but should be combined with other security practices, as MAC addresses can be spoofed by knowledgeable attackers.
- MAC header
MAC Header: The portion of a data packet in a network frame that contains the source and destination MAC (Media Access Control) addresses, helping to route the packet within a local area network (LAN). The MAC header also includes control information, such as error-checking fields, to ensure reliable delivery of the data across the network.
- Machine language
Machine language: A set of instructions that a computer can execute directly without the need for translation. It is used in computer programming to write low-level code that can be run efficiently on a specific type of processor. Examples include x86 machine language for Intel-based processors and ARM machine language for ARM-based processors.
Disclaimer: The glossary is for informational purposes only, we are not liable for any errors or omissions.
If you find any errors, please let us know.
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