Redundant Array of Independent Disks (RAID):
Redundant Array of Independent Disks (RAID): A method of combining multiple physical disk drives into a single logical unit to improve performance, reliability, and/or data availability.
Parity: A technique used in RAID systems to provide fault tolerance by storing additional data (the parity data) that can be used to reconstruct lost or damaged data in the event of a disk failure.
Mean Time Between Failures (MTBF): The average time between hardware failures for a given system or component.
Signature (Pattern) matching: A technique used in intrusion detection systems (IDS) to identify malicious traffic by comparing it to a database of known attack patterns (signatures).
False Positive: A situation where an intrusion detection or prevention system (IDS/IPS) incorrectly identifies legitimate traffic as malicious and blocks it.
Evidence Integrity: The assurance that digital evidence has not been tampered with or altered in any way. This is typically achieved by using cryptographic hash functions to generate a unique fingerprint of the data that can be used to verify its integrity.
Chain of Custody: A process used to maintain the integrity of evidence by tracking the handling of digital evidence from the time it is collected until the time it is presented in court.
Subscription/cloud site: A disaster recovery strategy that involves paying a provider to maintain a replica of your production environment in the cloud. This allows you to quickly spin up the replica in the event of a disaster and minimize downtime.
RAID 5: A RAID configuration that uses block-level striping with distributed parity to provide fault tolerance. It requires at least three disks and provides a combination of speed and redundancy.
Network intrusion prevention systems: Security systems that monitor network traffic for signs of a DDoS attack and take action to prevent it from overwhelming the network. This may involve blocking traffic from known malicious sources, limiting the rate of incoming traffic, or using other techniques to mitigate the impact of the attack.