Term 211
EBS snapshot
An EBS snapshot is a point-in-time backup of an Amazon Elastic Block Store volume that you can use for recovery, cloning, or migration.
Acronym study
Terms 211–240 of 826 220-1201 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 211
An EBS snapshot is a point-in-time backup of an Amazon Elastic Block Store volume that you can use for recovery, cloning, or migration.
Term 212
Amazon Elastic Block Store (EBS) volume types are different categories of block-level storage volumes optimized for specific performance, cost, and use case requirements in the AWS cloud.
Term 213
An Elastic IP is a static, public IPv4 address that you can allocate to your cloud account and remap to different resources, masking failures by allowing quick reassignment.
Term 214
Amazon ElastiCache is a fully managed, in-memory caching service that speeds up data retrieval from databases and applications by storing frequently accessed data in memory.
Term 215
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 216
Electrostatic discharge (ESD) is the sudden flow of electricity between two objects with different electrical charges, often caused by built-up static electricity, which can damage sensitive electronic components.
Term 217
An embedded SIM is a small, soldered chip inside a device that works like a traditional SIM card but can be programmed remotely, letting you switch mobile carriers without swapping a physical card.
Term 218
Encapsulation is the process of wrapping data with protocol headers and trailers before sending it across a network.
Term 219
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 220
Enhanced fan-out is a data distribution technique that copies a single message or data stream to multiple consumers or destinations in a reliable, scalable, and often ordered manner.
Term 221
Enhanced Interior Gateway Routing Protocol (EIGRP) is a Cisco-proprietary advanced distance-vector routing protocol that calculates the best path through a network using multiple metrics, with fast convergence and loop-free routing.
Term 222
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 223
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 224
An embedded SIM (Subscriber Identity Module) that is permanently soldered into a device and can be reprogrammed remotely to connect to a mobile network without needing a physical SIM card.
Term 225
Ethernet is a wired networking technology that connects devices like computers, printers, and servers to each other and to the internet using cables.
Term 226
EUI-64 is a method for creating a 64-bit interface identifier from a 48-bit MAC address, used to form an IPv6 link-local or stateless address auto-configuration (SLAAC) address.
Term 227
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 228
An exam domain is a major topic area or category of knowledge that a certification exam tests, like a chapter in a study guide.
Term 229
An expansion slot is a socket on a computer's motherboard that allows you to add extra hardware components, like a graphics card or network card, to improve the system's capabilities.
Term 230
ExpressRoute is a cloud service that creates a private, dedicated network connection between your on-premises infrastructure and Microsoft Azure, bypassing the public internet for faster, more reliable data transfer.
Term 231
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 232
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 233
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 234
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 235
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 236
An Extended Service Set Identifier (ESSID) is the name of a wireless network that uses multiple access points to cover a larger area, allowing devices to roam seamlessly between them.
Term 237
Extensible Markup Language (XML) is a markup language that defines rules for encoding documents in a format that is both human-readable and machine-readable.
Term 238
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 239
Face unlock is a biometric security feature that uses facial recognition technology to authenticate a user by analyzing unique facial features.
Term 240
Facial recognition technology is a biometric security method that identifies or verifies a person by analyzing and comparing patterns of their facial features.