Term 301
Eradication
Eradication is the phase in incident response where the root cause of a security breach is completely removed from the system to prevent the attack from happening again.
Acronym study
Terms 301–330 of 956 220-1102 acronyms and key terms. Each entry includes a plain-English definition and a link to the full 800-word glossary page with exam context and practice questions.
Term 301
Eradication is the phase in incident response where the root cause of a security breach is completely removed from the system to prevent the attack from happening again.
Term 302
Error-correcting code (ECC) is a method used by computer memory to automatically detect and fix single-bit errors without crashing or corrupting data.
Term 303
Electrostatic Discharge is the sudden flow of electricity between two electrically charged objects caused by contact or an electrical short, which can damage sensitive electronic components.
Term 304
ESP (Encapsulating Security Payload) is a core protocol in IPsec that provides confidentiality, data integrity, and authentication for VPN traffic by encrypting and optionally authenticating the payload of IP packets.
Term 305
ESP (Encapsulating Security Payload) provides confidentiality, data origin authentication, connectionless integrity, and anti-replay protection for IP packets.
Term 306
A EULA is a legally binding contract between a software developer and the user that outlines how the software can be used and what the user agrees to before installation or first use.
Term 307
A rating from the Common Criteria that measures how thoroughly a computer product or system has been tested and verified for security.
Term 308
An event is any identifiable occurrence or action in a computer system, network, or application that can be logged, monitored, or analyzed for security or operational purposes.
Term 309
An event log is a file or record that stores a chronological list of events, changes, errors, or security incidents occurring on a computer system or network.
Term 310
Event Viewer is a built-in Windows tool that logs system, security, and application events to help administrators monitor and troubleshoot issues.
Term 311
An evil twin attack is a rogue wireless access point that impersonates a legitimate network to intercept or manipulate user traffic.
Term 312
exFAT is a file system created by Microsoft for flash drives and memory cards that allows files larger than 4 GB to be stored and works across both Windows and macOS.
Term 313
Exposure is the measure of potential loss or harm to an organization's assets when a vulnerability is exploited by a threat, often expressed as the window of time or degree of access an attacker has.
Term 314
Exposure factor is the percentage of an asset's value that would be lost if a specific threat event occurs, used to calculate the single loss expectancy in risk analysis.
Term 315
ext4 is the default file system for many Linux distributions, designed to store and manage files on a hard drive or SSD with journaling, large volume support, and backward compatibility.
Term 316
An extended access control list (ACL) is a set of rules that filters network traffic based on source and destination IP addresses, protocol type, and port numbers, providing more granular control than a standard ACL.
Term 317
Extended Detection and Response (XDR) is a security approach that collects and analyzes data from multiple sources like endpoints, networks, servers, and email to detect and stop threats more effectively.
Term 318
Extended File Allocation Table (exFAT) is a file system created by Microsoft that allows very large files and large storage volumes to be used across different operating systems like Windows and macOS.
Term 319
The Extended File System (ext) is a foundational file system family used in Linux operating systems to organize and manage data on storage devices.
Term 320
Extensible Authentication Protocol (EAP) is a flexible authentication framework used in network access control, particularly in wireless and point-to-point connections, that supports multiple authentication methods without requiring changes to the underlying protocol.
Term 321
EAP over LAN (EAPoL) is a protocol that carries authentication messages between a device and a network access point before the device is allowed to connect to the network.
Term 322
External Serial Advanced Technology Attachment is a standard interface for connecting external storage devices like hard drives and SSDs to a computer using a high-speed serial cable.
Term 323
Facial recognition technology is a biometric security method that identifies or verifies a person by analyzing and comparing patterns of their facial features.
Term 324
Fail2ban is a security tool that monitors log files for repeated authentication failures and temporarily bans the offending IP addresses using firewall rules.
Term 325
Failover is the automatic switching to a backup system when the primary system fails, ensuring continuous operation and minimal downtime.
Term 326
Failover routing is a network design that automatically redirects traffic to a backup path when the primary path fails, keeping services available.
Term 327
A false negative is when a security tool fails to detect a real threat, mistakenly treating it as harmless.
Term 328
A false positive is an alert or result that indicates a security threat or vulnerability exists when in fact there is no real issue.
Term 329
FAT32 is a file system that organizes and manages how data is stored on storage devices like USB drives and memory cards.
Term 330
A fault domain is a boundary within a computing environment that groups together components that share a single point of failure, helping to isolate the impact of hardware or software failures.