1.0 Network+ Certification Cram Notes : Networking Fundamentals
1.7 Explain basic corporate and datacenter network architecture
A basic corporate network architecture typically includes a combination of network devices such as switches, routers, firewalls, and wireless access points, which are interconnected to form the core of the network. End users access the network through these devices, which are responsible for providing secure and reliable access to the resources on the network.
A datacenter network architecture typically has a more complex structure and is designed to support high-performance computing and storage needs. The architecture consists of multiple layers of networking equipment, including switches, routers, firewalls, load balancers, and storage area networks (SANs). These components are interconnected to form a highly available and scalable network infrastructure that can support large amounts of data traffic and provide fault tolerance and disaster recovery capabilities. In a datacenter network, redundant components are often used to ensure maximum availability, and network security is a top priority to protect against cyber threats.
Explain Three-tiered architecture
The Three-tiered architecture is a commonly used network architecture design for large enterprise networks. It separates the network into three logical layers, each with its own distinct functions:
1. Core: The core layer is responsible for high-speed and efficient data transfer between different parts of the network. This layer should be highly redundant and scalable to ensure high availability and reliability.
2. Distribution/aggregation layer: This layer acts as a buffer between the core and access layers. It performs tasks such as routing, filtering, and traffic management. The distribution layer also provides a platform for implementing advanced security policies and network segmentation.
