Cloud and the Datacenter Flashcards
Virtualization
Allows multiple virtual instances to exist on a single physical server
Hypervisor
enables virtualization to occur and emulates the physical hardware
Network Attached Storage (NAS)
Disk storage delivered as a service over TCP/IP
Storage Area Network (SAN)
Specialized LAN that transfers data at block-level with a special protocol
Fibre Channel
Special purpose hardware providing 1-16 Gbps of storage area network speed
iscsi
lowers cost and relies on config that allows jumbo frames over your network
Infiniband
Virtualized storage tech that uses a switched fabric topology
Session Initiation Protocol (SIP)
Used to setup, maintain, and tear down calls
PBX
Private Branch Exchange
Virtual Private Branch Exchange
Outsources a telephone system by utilizing Voip to send all data to the provider and then connecting it to the telephone system
Private Cloud
Systems and users only have access with other devies inside the same private cloud or system
Public Cloud
Systems and users interact with devices on public networks, such as the internet and other clouds
Hybrid Cloud
combination of private and public clouds
Community Cloud
Collaborative effort where infrastructure is shared between several organizations; ex: you could make a cloud for banks shared by a bunch of banks
Network As a Service (NaaS)
Allows for the outsourcing of a network to a service provider
IaaS
Allows for the outsourcing of computers or equipment
SaaS
user interface with a web-based application and the details of how it works
Platform as a Service (PaaS)
Provides a platform for companies that develops applications without the need for infrastructure
Desktop as a Service (DaaS)
Provides a desktop environment that is accessible through the internet in the form of a cloud desktop or virtual desktop environment
Elasticity
Attempts to match the resources allocated with the actual amount of resources needed at any given point in time
Scalability
Handles the growing workload required to maintain good performance and efficiency for a given software or application
Horizontal Scaling
adding additional resources (like another server)
Multitenancy
Allows customers to share computing resources in a public or private cloud
Infrastructure as Code
Managing through scripting, etc.
Orchestration
Process of arranging or coordinating the installation and configuration of multiple systems
Private Direct Connection
Extends Preexisting, on-premise data center into the provider’s network to directly connect to your virtual private cloud network
Three-tiered hierarcy
core - most expensive routers; at least two routers
distribution - access control lists/filters/policies
access/edge - beneath and connects to all endpoint devices
Software Defined Network
Enables the network to be intelligently controlled through software
Control Layer
Uses the info from the applications and decides how to route a data packet on the network
Infrastructure Layer
contains the network devices that receive information about where to move the data and then perform those movements
Management Plane
used to monitor traffic conditions and the status of the network
Spine and Leaf Architecture
used specifically within the data center consists of spine, leaf, and servers
North-South Traffic
Traffic that enters or leaves the data center from a system physically residing outside the data center (north is going outside the data center)
East-West
Refers to data flow within a datacenter
