Network Attached Storage (NAS) refers to a dedicated file storage device that provides data access to a network of clients. Unlike traditional storage solutions that are directly attached to a single computer, NAS devices connect to a network, allowing multiple users and devices to access and share files simultaneously. This architecture makes NAS an attractive Read More …
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What is a clustered file system?
A clustered file system is a type of file system that allows multiple servers (or nodes) to access and manage the same storage resources simultaneously. This architecture is designed to improve performance, reliability, and scalability in environments where high availability and data sharing are essential, such as in data centers or cloud computing. In a Read More …
AZ 900 Study Guide
Core Concepts Describe Cloud Concepts – What is the cloud? Describe Azure Architecture & Services – What services are there? Describe Azure Management & Governance – How you can manage things. In simpler terms, cloud computing uses a network to connect users to a cloud platform where they request and access rented computing services. Read More …
SID – Security Identifier
A Security Identifier (SID) is a unique, variable-length alphanumeric string assigned by an operating system (OS), like Windows, to every security principal. A security principal can be a user, group, computer, or process that can be authenticated by the OS. SIDs are fundamental to how these systems manage access to resources. Here’s a more detailed Read More …
ACE – Access Control Entries
The Building Blocks of Permissions In the realm of Identity and Access Management, controlling who can access what is paramount. While Access Control Lists (ACLs) provide the structure for managing permissions, the individual permissions themselves are defined within Access Control Entries (ACEs). Understanding ACEs is crucial for IT students to grasp the fine-grained control that Read More …
LCP – Link Control Protocol
The Link Control Protocol (LCP) is a critical component of the Point-to-Point Protocol (PPP), which is widely used for establishing direct connections between two network nodes. LCP plays a vital role in the setup, configuration, and management of PPP connections, making it essential for ensuring reliable and efficient data transmission over point-to-point links. Establishing Connections Read More …
PPP – Point-to-Point Protocol
Point-to-Point Protocol (PPP) is a widely used communication protocol that facilitates the transmission of data over point-to-point links. It is particularly important in networking because it provides a standard method for transporting various types of data, including IP packets, over direct connections between two devices. Understanding PPP is essential for new networking students, as it Read More …
MTU – Maximum Transmission Unit
Maximum Transmission Unit (MTU) is a fundamental concept in networking that refers to the largest size of a packet or frame that can be sent over a network. This size is specified in octets, which are eight-bit bytes. Understanding MTU is crucial for new networking students, as it plays a significant role in the efficiency Read More …
TTL – Time to Live
Time to Live (TTL), often referred to as hop limit, is a crucial mechanism used in computer networking to manage the lifespan of data packets as they traverse through a network. The primary purpose of TTL is to prevent data packets from circulating indefinitely, which can occur due to routing errors or network loops. By Read More …
AZ 900 – Part III – Microsoft Entra ID
Microsoft Entra ID Overview What is Microsoft Entra ID? Microsoft Entra ID, formerly known as Azure Active Directory (Azure AD), is a cloud-based identity and access management service provided by Microsoft. It enables organizations to manage user identities and access to resources securely. Key Features of Microsoft Entra ID Identity Management: User Lifecycle Management: Entra ID Read More …