Term 331
Disaster recovery
Disaster recovery is a set of policies, procedures, and tools that help an organization restore critical IT systems and data after a disruptive event.
Acronym study
Terms 331–360 of 1222 SK0-005 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
Disaster recovery is a set of policies, procedures, and tools that help an organization restore critical IT systems and data after a disruptive event.
Term 332
Disaster Recovery Design is the process of planning and implementing strategies to restore IT systems and data after a catastrophic failure, ensuring business continuity with minimal downtime and data loss.
Term 333
A Disaster Recovery Plan (DRP) is a documented, structured approach that outlines how an organization can quickly resume critical IT systems and operations after a disruptive event.
Term 334
A disk image is a sector-by-sector copy of an entire storage device, such as a hard drive or SSD, used in incident response to preserve forensic evidence exactly as it existed at a point in time.
Term 335
Disk Management is a system utility that lets you manage hard drives and other storage devices, including partitioning, formatting, and assigning drive letters.
Term 336
Disk storage is the hardware or cloud-based service that persistently saves digital data on spinning magnetic platters or solid-state memory for a computer or server to use.
Term 337
A mail-enabled Active Directory security group used to send email notifications to multiple recipients simultaneously without granting access to resources.
Term 338
A DLP policy is a set of rules that an organization uses to prevent sensitive data from being lost, stolen, or accidentally exposed, whether it is in use, in motion, or at rest.
Term 339
dmesg is a Linux command that displays messages from the kernel ring buffer, used to diagnose hardware and boot issues.
Term 340
A DMZ (demilitarized zone) is a network segment that sits between an internal private network and the public internet, hosting publicly accessible services while keeping the internal network isolated.
Term 341
DNS is the system that translates human-friendly domain names like example.com into machine-readable IP addresses so computers can find each other on a network.
Term 342
DNS enumeration is the process of systematically querying a Domain Name System (DNS) server to gather information about a target domain, including its subdomains, IP addresses, and mail server records.
Term 343
DNS over TLS encrypts DNS queries using the Transport Layer Security protocol to prevent eavesdropping and tampering.
Term 344
DNS poisoning is a cyberattack that corrupts a DNS resolver's cache with false information, redirecting users to malicious websites without their knowledge.
Term 345
A DNS record is a set of instructions stored on a DNS server that tells clients how to interact with a domain, most commonly by mapping a human-readable domain name to an IP address.
Term 346
DNSSEC adds cryptographic signatures to DNS records to ensure data authenticity and integrity, preventing cache poisoning and spoofing attacks.
Term 347
Amazon DocumentDB is a fully managed, MongoDB-compatible document database service that stores, queries, and indexes JSON-like data for scalable applications.
Term 348
DoH encrypts DNS queries within HTTPS traffic to prevent eavesdropping and manipulation of domain name resolution.
Term 349
A set of protocols that add digital signatures to DNS data to verify its authenticity and integrity.
Term 350
DMARC is an email authentication protocol that helps prevent spoofing and phishing by verifying that incoming email really comes from the domain it claims to be from and tells receiving servers what to do if verification fails.
Term 351
A cyberattack that floods a target with traffic or requests to exhaust its resources, making it unavailable to legitimate users.
Term 352
DNS over TLS (DoT) encrypts DNS queries using TLS, ensuring privacy and integrity between clients and resolvers.
Term 353
DREAD is a qualitative risk assessment model used to rank threats by evaluating Damage potential, Reproducibility, Exploitability, Affected users, and Discoverability.
Term 354
Driver rollback is a Windows tool that reverts a device driver to its previous version to fix problems caused by a recent driver update.
Term 355
Dynamic Trunking Protocol (DTP) is a Cisco proprietary protocol used to automatically negotiate whether a switch port should operate in access mode or trunk mode.
Term 356
A Dual In-line Memory Module (DIMM) is a small circuit board that holds memory chips and plugs into a computer's motherboard to provide Random Access Memory (RAM).
Term 357
Due care is the legal and ethical duty of an organization to take reasonable steps to protect sensitive information and IT systems from harm.
Term 358
Due diligence is the process of systematically reviewing and verifying information, policies, and procedures to identify and manage risks before making a decision or taking an action in an IT or security context.
Term 359
Dumpster diving is the practice of searching through trash to find discarded information or equipment that can be used to compromise security.
Term 360
Dynamic ARP Inspection is a security feature that validates ARP packets on a network to prevent man-in-the-middle attacks by ensuring that only legitimate ARP messages are forwarded.