CompTIA Security+ SY0-701 All Acronyms Flashcards Part 2

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GRE

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Generic Routing Encapsulation – e.g., creates VPN tunnels over public networks.

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HA

Back

High Availability – e.g., redundant systems that ensure service uptime in case of hardware failure.

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HDD

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Hard Disk Drive – e.g., traditional storage device used for file storage in desktops.

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HIDS

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Host-based Intrusion Detection System – e.g., detects suspicious activity on a specific workstation.

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HIPS

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Host-based Intrusion Prevention System – e.g., blocks known malicious behavior on an endpoint.

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HMAC

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Hashed Message Authentication Code – e.g., ensures a message hasn’t been tampered with.

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HOTP

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HMAC-based One-Time Password – e.g., used in hardware tokens that generate a new code each login.

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HSM

Back

Hardware Security Module – e.g., a physical device used to store and manage cryptographic keys.

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HTML

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Hypertext Markup Language – e.g., used to structure content on websites.

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HTTP

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Hypertext Transfer Protocol – e.g., loading a website that is not encrypted (http://).