Basic Corporate and datacenter network architecture Flashcards
What are the three layers in a three-tiered network architecture?
-Core Layer: The backbone of the network, providing fast and reliable connectivity between different distribution layers.
-Distribution/Aggregation Layer: Connects the core layer to the access layer, handling routing, filtering, and network policy enforcement.
-Access/Edge Layer: Provides network access to end-user devices
What are the layers in Software-Defined Networking (SDN)?
-Application Layer: Contains the network applications and business logic.
-Control Layer: Manages and controls the data flow in the network, often using a centralized controller.
-Infrastructure Layer: Consists of the physical network devices and data forwarding mechanisms.
-Management Plane: Handles the configuration, monitoring, and management of the network.
What is the spine and leaf architecture?
-Software-Defined Network: Uses SDN principles to manage and control the network.
-Top-of-Rack Switching: Places network switches at the top of server racks for efficient and organized connections.
-Backbone: The central part of the network that interconnects different segments and provides high-speed data transport.
What are the types of traffic flows in networking?
-North-South Traffic: Data flow between external networks and the data center.
-East-West Traffic: Data flow within the data center, between servers and devices.
What are the differences between branch office, on-premises datacenter, and colocation?
-Branch Office: A remote office that connects to the main corporate network.
-On-Premises Datacenter: A physical data center located within the organization’s premises.
-Colocation: A data center facility where multiple organizations house their servers and networking equipment, sharing the infrastructure.
What are storage area networks (SANs) and their connection types?
-Fibre Channel over Ethernet (FCoE): Transports Fibre Channel traffic over Ethernet networks.
-Fibre Channel: A high-speed network technology primarily used for SANs.
-Internet Small Computer Systems Interface (iSCSI): Uses IP networks to link data storage facilities.
