Term 331
Elasticity
Elasticity is the ability of a cloud system to automatically add or remove computing resources (like servers, storage, or bandwidth) in response to real-time changes in demand.
Acronym study
Terms 331–360 of 1001 Cloud Digital Leader 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 331
Elasticity is the ability of a cloud system to automatically add or remove computing resources (like servers, storage, or bandwidth) in response to real-time changes in demand.
Term 332
ELT (Extract, Load, Transform) is a data integration process where raw data is extracted from source systems, loaded directly into a target system like a data lake or warehouse, and then transformed as needed for analysis.
Term 333
A Cisco IOS command that sets a password to protect privileged EXEC mode (enable mode) using a strong, one-way cryptographic hash (MD5 by default), replacing the weaker 'enable password' command.
Term 334
The Encrypting File System (EFS) is a Windows feature that encrypts individual files and folders on an NTFS volume so that only authorized users can read them.
Term 335
Encryption is the process of converting readable data into a secret code to prevent unauthorized access.
Term 336
An encryption key is a string of random characters used by an algorithm to lock (encrypt) and unlock (decrypt) data, ensuring only authorized parties can read it.
Term 337
Endpoint detection and response (EDR) is a cybersecurity solution that continuously monitors endpoint devices for suspicious activity and automatically responds to threats to stop attacks in real time.
Term 338
Endpoint protection is a security approach that safeguards devices like laptops, phones, and servers from malicious threats by monitoring, detecting, and blocking attacks at the device level.
Term 339
An endpoint security policy is a set of rules that controls how devices like laptops, phones, and servers connect to a network and what security protections they must have to keep data safe.
Term 340
Endpoint telemetry is the automated collection and transmission of security-relevant data from devices like laptops, servers, and phones to a central monitoring system for threat detection and analysis.
Term 341
Enterprise risk management is the systematic process of identifying, assessing, and responding to risks that could affect an organization’s ability to achieve its objectives.
Term 342
Enumeration is the systematic process of extracting detailed information about a target system, such as user accounts, network shares, services, and configurations, used during the reconnaissance phase of a security assessment.
Term 343
End of Life (EOL) is the date when a vendor stops selling, supporting, or patching a product, requiring migration to avoid security and compliance risks.
Term 344
EOS (End of Support) marks the date when a vendor stops providing technical assistance, patches, and firmware updates for a product.
Term 345
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 346
An error budget is the maximum amount of acceptable downtime or failure a system can experience within a specified period while still meeting its Service Level Objective (SLO).
Term 347
Error Reporting is the automated process of capturing, logging, and notifying relevant systems or personnel about errors that occur in software, hardware, or network components to facilitate diagnosis and resolution.
Term 348
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 349
ESP (Encapsulating Security Payload) provides confidentiality, data origin authentication, connectionless integrity, and anti-replay protection for IP packets.
Term 350
ETL stands for Extract, Transform, Load, a process that moves data from multiple source systems into a single database, data warehouse, or data lake for analysis and reporting.
Term 351
A rating from the Common Criteria that measures how thoroughly a computer product or system has been tested and verified for security.
Term 352
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 353
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 354
An evil twin attack is a rogue wireless access point that impersonates a legitimate network to intercept or manipulate user traffic.
Term 355
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 356
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 357
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 358
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 359
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 360
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.