Term 301
Hot Standby Router Protocol
Hot Standby Router Protocol (HSRP) is a Cisco-proprietary protocol that provides first-hop redundancy by allowing a backup router to automatically take over if the primary router fails.
Acronym study
Terms 301–330 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 301
Hot Standby Router Protocol (HSRP) is a Cisco-proprietary protocol that provides first-hop redundancy by allowing a backup router to automatically take over if the primary router fails.
Term 302
Hot tier is a storage category used for data that is accessed frequently and needs fast retrieval, typically stored on high-performance hardware like SSDs.
Term 303
A drive that can be removed and replaced without powering down the computer or system it is connected to.
Term 304
HTTP stands for Hypertext Transfer Protocol, the set of rules web browsers and servers use to communicate and transfer web pages over the internet.
Term 305
A network device or software that distributes incoming web traffic across multiple servers using HTTP or HTTPS protocols to ensure high availability, reliability, and performance.
Term 306
HTTPS (Hypertext Transfer Protocol Secure) is the secure version of HTTP that encrypts data between a web browser and a web server using SSL/TLS protocols.
Term 307
A hybrid cloud is a computing environment that combines a private cloud (on-premises infrastructure) with one or more public cloud services, allowing data and applications to be shared between them.
Term 308
Hypertext Transfer Protocol (HTTP) is the foundational communication protocol used to transfer web pages and other data between a web browser and a web server over the internet.
Term 309
A hypervisor is software that creates and runs virtual machines by allowing multiple operating systems to share a single hardware host.
Term 310
IaaS stands for Infrastructure as a Service, which means renting virtual computing resources like servers, storage, and networking from a cloud provider instead of buying and managing physical hardware yourself.
Term 311
An IAM policy is a set of rules that determines who can access specific cloud resources and what actions they are allowed to perform.
Term 312
An IAM role is a set of permissions that an entity can assume temporarily to access cloud resources securely.
Term 313
iCloud is Apple's cloud storage and cloud computing service that lets users store data like photos, documents, and backups on remote servers and sync them across their Apple devices.
Term 314
ICMP is a network protocol used by devices to send error messages and operational information about network communication problems.
Term 315
ifconfig is a command-line tool used to configure and display network interface parameters on Unix-like operating systems.
Term 316
An image is a complete snapshot of a system's operating system, applications, and settings, used to deploy or restore computing environments quickly.
Term 317
An image backup is a complete, sector-by-sector copy of an entire storage device or partition, capturing the operating system, applications, settings, and all data exactly as they exist at the time of the backup.
Term 318
A cylindrical component in laser printers that transfers toner onto paper using electrostatic charges.
Term 319
IMAP is an email retrieval protocol that keeps messages on the server, enabling access from multiple devices with synchronized state.
Term 320
A unique 15-digit code that identifies a mobile device on a cellular network, like a serial number for phones and tablets.
Term 321
An impact printer is a type of printer that creates text or images by physically striking a ribbon against paper, using a print head that makes contact with the page.
Term 322
In-plane Switching (IPS) is a type of LCD screen technology that gives you wide viewing angles and accurate colors, making it ideal for professional work and exams that test display knowledge.
Term 323
An inbound ACL is a set of rules applied to network traffic entering an interface that decides whether to allow or block that traffic based on criteria like source IP, destination port, or protocol.
Term 324
Incident documentation is the practice of recording every detail of a cybersecurity or IT incident, from detection to resolution, to ensure accurate analysis, legal compliance, and process improvement.
Term 325
An incremental backup is a backup method that only copies data that has changed since the last backup, whether that last backup was full or incremental.
Term 326
The Industrial Internet of Things (IIoT) is a network of physical devices, machines, and sensors in industrial settings that collect and exchange data over the internet to improve efficiency and safety.
Term 327
Information Technology eXtended (ITX) is a family of small-form-factor motherboard specifications developed by VIA Technologies for compact and low-power computer systems.
Term 328
Infrared (IR) is a type of wireless communication that uses light waves just below visible red light to send data or control devices over short distances.
Term 329
An ink cartridge is a replaceable component of an inkjet printer that holds liquid ink and delivers it onto paper during printing.
Term 330
An inkjet printer is a computer peripheral that creates printed documents or images by spraying tiny droplets of liquid ink onto paper.