Term 331
Metric
A metric is a quantifiable measurement used to assess the performance, health, or status of IT systems, networks, or applications.
Term 331
A metric is a quantifiable measurement used to assess the performance, health, or status of IT systems, networks, or applications.
Term 332
Metro Ethernet is a service that extends Ethernet networking across a metropolitan area, allowing businesses to connect multiple locations as if they were on the same local network.
Term 333
Multi-Factor Authentication (MFA) is a security method that requires a user to verify their identity using two or more different types of evidence, such as a password plus a code from a phone, before they can access an account or system.
Term 334
A Microsoft 365 group is a membership object that provides a single identity for a set of users to collaborate across multiple Microsoft 365 services like Outlook, Teams, and SharePoint.
Term 335
Microsoft Defender for Cloud is a cloud-native application protection platform that provides unified security management and advanced threat protection across multicloud and hybrid environments.
Term 336
Microsoft Defender XDR is a unified security platform that automatically correlates alerts from across an organization's endpoints, email, identities, and cloud apps to stop complex attacks.
Term 337
Microsoft Entra ID is a cloud-based identity and access management service that lets employees sign in and access resources both inside and outside of your organization.
Term 338
Multi-AZ RDS is a database deployment option that automatically maintains a synchronous standby replica in a different Availability Zone to provide high availability and automatic failover.
Term 339
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 340
Multi-Region architecture is a deployment strategy where cloud resources are hosted in two or more geographically separate data center regions to improve availability, disaster recovery, and reduce latency for global users.
Term 341
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 342
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 343
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 344
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 345
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 346
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 347
A native VLAN is the default VLAN assigned to a trunk port that carries untagged traffic for backwards compatibility with devices that do not understand VLAN tagging.
Term 348
A Native VLAN mismatch occurs when two connected switches have different Native VLANs configured on the trunk port, causing control traffic like CDP, DTP, and BPDUs to be sent on the wrong VLAN and potentially creating security vulnerabilities or connectivity issues.
Term 349
A Network ACL is a virtual firewall that controls inbound and outbound traffic at the subnet level in a cloud network, acting as a stateless packet filter.
Term 350
Network security is the practice of protecting a computer network from unauthorized access, misuse, malfunction, modification, destruction, or improper disclosure, ensuring the confidentiality, integrity, and availability of data and resources.
Term 351
A Network Security Group is a set of rules that controls inbound and outbound traffic to Azure resources like virtual machines and subnets.
Term 352
Network Watcher is a monitoring and diagnostics service used in cloud environments to track network traffic, detect issues, and analyze performance between virtual machines and other resources.
Term 353
NSG flow logs are records of IP traffic flowing through an Azure Network Security Group, used for monitoring, analysis, and troubleshooting network security.
Term 354
An NSG rule is a set of security rules in Microsoft Azure that controls whether network traffic is allowed or denied to and from Azure resources.
Term 355
A numbered ACL is an access control list on a router or firewall that uses a number to identify the list and define rules for permitting or denying traffic based on source and destination IP addresses, ports, and protocols.
Term 356
Origin access control is a security mechanism that restricts access to a network, system, or resource based on the verified identity or attributes of the requesting entity.
Term 357
OSPF is a link-state routing protocol used to find the best path for data packets to travel across IP networks, like a smart GPS that recalculates routes when traffic changes.
Term 358
An OSPF adjacency is a logical neighbor relationship formed between two OSPF routers that have completed a series of hello and database exchange processes, enabling them to share routing information and maintain a consistent view of the network topology.
Term 359
An OSPF area is a logical grouping of routers and networks within an OSPF routing domain, used to control routing traffic and improve scalability.
Term 360
OSPF authentication is a security mechanism that verifies the identity of routers exchanging routing information within an OSPF network, preventing unauthorized or malicious routing updates.