Acronym study
Terms 511–540 of 1033 N10-009 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
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 512
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 513
MMC is a Windows framework that hosts administrative tools called snap-ins for managing hardware, software, and network components.
Term 514
Modernization is the process of updating legacy IT systems, applications, and infrastructure to use modern cloud-native technologies, architectures, and practices.
Term 515
A four-pin power connector used in older desktop computers to provide electrical power to internal drives and other peripherals.
Term 516
The main circuit board inside a computer that connects all components so they can communicate with each other and receive power.
Term 517
A Memorandum of Understanding (MOU) is a non-binding agreement between parties outlining mutual goals and intentions for cooperation.
Term 518
MPLS (Multiprotocol Label Switching) is a data forwarding technology that uses short path labels instead of long network addresses to direct data efficiently across a network.
Term 519
MPO (Multi-Fiber Push On) is a fiber optic connector that terminates multiple fibers in a single ferrule, enabling high-density cabling.
Term 520
MSS (Maximum Segment Size) is the largest amount of data, in bytes, that a device can receive in a single TCP segment, excluding the TCP and IP headers.
Term 521
MTBF predicts average operational time between inherent failures of a device, used to estimate reliability in networking hardware.
Term 522
MTU (Maximum Transmission Unit) is the largest size of a single data packet that can be sent over a network without needing to be fragmented.
Term 523
Multi-AZ refers to a deployment model where resources are replicated across multiple Availability Zones within a cloud region to ensure high availability and fault tolerance.
Term 524
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 525
A fiber optic connector that allows multiple optical fibers to be connected and disconnected quickly by simply pushing the connector into place, with a small push-pull tab for removal.
Term 526
A multifunction printer is a single device that combines printing, scanning, copying, and sometimes faxing into one machine.
Term 527
A type of optical fiber that carries multiple light signals simultaneously over short to medium distances, commonly used in local area networks and data centers.
Term 528
Multiple Input Multiple Output (MIMO) is a wireless technology that uses multiple antennas at both the sender and receiver to increase data throughput and connection reliability without needing more bandwidth or power.
Term 529
Multiprotocol Label Switching (MPLS) is a data-carrying technique that uses short path labels instead of long network addresses to route packets quickly and efficiently across a WAN.
Term 530
An MX (Mail Exchange) record is a DNS resource record that specifies which mail servers are responsible for accepting email messages on behalf of a domain.
Term 531
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 532
Network Access Control (NAC) is a security technology that enforces policies to control which devices and users can connect to a network.
Term 533
A Network Access Control List (NACL) is a stateless firewall that controls inbound and outbound traffic at the subnet level in a virtual private cloud.
Term 534
A name server is a specialized server that translates human-readable domain names into machine-readable IP addresses so that computers can find each other on a network.
Term 535
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 536
NAS is a dedicated file-level storage device connected to a network, providing centralized data access to multiple clients.
Term 537
NAS is a dedicated file-level storage device connected to a network, providing centralized data access to multiple clients via standard protocols like NFS or SMB.
Term 538
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 539
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 540
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.