Acronym study
Terms 511–540 of 956 220-1102 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 511
Microsoft Sentinel is a cloud-native security information and event management (SIEM) and security orchestration automation and response (SOAR) service that helps organizations detect, investigate, and respond to cyber threats across their entire digital estate.
Term 512
A Microsoft Store app is a software program downloaded and installed from the Microsoft Store, designed to run in a sandboxed environment with limited system access for improved security and ease of management.
Term 513
Mini-Serial Advanced Technology Attachment (mSATA) is a compact form factor of the SATA interface used to connect solid-state drives to a computer’s motherboard, commonly found in laptops and small form-factor devices.
Term 514
Misconfiguration is when a system, device, or software is set up incorrectly, leaving it vulnerable to attack or causing it to malfunction.
Term 515
A Missing DLL error occurs when a required Dynamic Link Library file is not found by the Windows operating system or an application, preventing the program from starting or running properly.
Term 516
MITRE ATT&CK is a globally accessible knowledge base of adversary tactics and techniques based on real-world observations, used by security professionals to understand and defend against cyber threats.
Term 517
Mobile application management (MAM) is the practice of controlling and securing corporate apps and their data on employee-owned or company-provided mobile devices without managing the entire device.
Term 518
Mobile device management (MDM) is a security solution that allows IT administrators to enroll, configure, monitor, and enforce policies on smartphones, tablets, and other mobile devices used in an organization.
Term 519
Modernization is the process of updating legacy IT systems, applications, and infrastructure to use modern cloud-native technologies, architectures, and practices.
Term 520
A Memorandum of Understanding (MOU) is a non-binding agreement between parties outlining mutual goals and intentions for cooperation.
Term 521
MSConfig is a Windows system utility used to troubleshoot startup issues by managing boot settings, services, and startup programs.
Term 522
MTBF (Mean Time Between Failures) is a reliability metric that estimates the average operational time between inherent failures of a hardware component or system during normal operation.
Term 523
MTD (Maximum Tolerable Downtime) is the longest period a business can function without a specific system or service before the damage becomes unacceptable.
Term 524
MTTR stands for Mean Time to Repair, a metric that measures the average time it takes to restore a failed system or component to full working order after a failure occurs.
Term 525
Multi-cloud is a strategy where an organization uses cloud computing services from more than one cloud provider to distribute workloads, avoid vendor lock-in, and increase resilience.
Term 526
Multifactor Authentication (MFA) is a security method that requires you to provide two or more pieces of evidence to prove your identity before accessing an account or system.
Term 527
A multifunction printer is a single device that combines printing, scanning, copying, and sometimes faxing into one machine.
Term 528
Multilevel security is a computer security approach that allows users with different clearance levels to access data at different classification levels on the same system, while preventing unauthorized access.
Term 529
A Mutual Non-disclosure Agreement is a legally binding contract between two parties where both agree to keep each other's confidential information private and not share it with outsiders.
Term 530
NaaS is a cloud delivery model where network infrastructure and services are provided on-demand via a subscription, eliminating the need for on-premises hardware.
Term 531
Network Access Control (NAC) is a security technology that enforces policies to control which devices and users can connect to a network.
Term 532
A Named ACL is a list of rules applied to a network device, identified by a name instead of a number, that controls which traffic is allowed or blocked based on source and destination IP addresses, protocols, and port numbers.
Term 533
NAT (Network Address Translation) is a method that allows multiple devices on a private network to share a single public IP address when accessing the internet.
Term 534
A NAT Gateway is a managed AWS service that allows instances in a private subnet to connect to the internet or other AWS services while preventing the internet from initiating connections back to those instances.
Term 535
A NAT instance is a virtual machine that forwards traffic from a private subnet to the internet, performing Network Address Translation (NAT) so that private instances can reach the internet without exposing them to inbound connections.
Term 536
NAT overload is a form of network address translation that allows many devices on a private network to share a single public IP address by using unique port numbers to track each connection.
Term 537
A legally binding contract that restricts the sharing of confidential information with unauthorized parties.
Term 538
Near-field Communication (NFC) is a short-range wireless technology that allows two devices to exchange data when they are touched or brought within a few centimeters of each other.
Term 539
Need to know is a security principle that restricts access to information or resources only to individuals who require that access to perform their job duties.
Term 540
NetFlow is a network protocol developed by Cisco that collects and monitors IP traffic data to provide visibility into network usage, performance, and security.