IT Infrastrucutre Flashcards
S2 M1
a piece of hardware that connects devices within a network by reading & converting protocols so traffic can be transmitted across those devices
gateway
a hardware or software system that protects a network by filtering traffic, analyzing data for threats, allowing approved connections, and masking internal IP addresses using a shared public IP for added security
firewall
directs traffic in a network to take the most efficient path by examining the source & destination in info packets; link between modem & switches/devices
router
a piece of hardware that connects devices & networks by relaying a signal or splitting a signal into multiple paths
switch
A device that processes data locally instead of sending it to a central server, helping decentralize computing power and reduce response time
edge-enabled device
organization that provide some level of outsources computing, ranging from virtual data centers & servers to environment management & application design; consumption of processing power & storage can be rented in units of time or storage space used
cloud service providers
order of the 7 layers of Open Systems Interconnection (OSI)
7 application
6 presentation
5 session
4 transport
3 netowrk
2 data link
1 physical
(layer) converts data received by Application layer (7) into a form that other devices can interpret; site of encryption
6 presentation
(layer) point in which the routing & address headers & footers are added to the data packet so it reaches the correct destination
3 network
(layer) point in which the user application interfaces with the network protocol required to transmit a message
7 application
(layer) communication is established & maintained so dialogue between devices can occur
5 session
(layer) supports & controls the communication connections between devices
4 transport
(layer) data packets are formed for transmission & adds Media Access Control (MAC) addresses
2 data link
(layer) converts the message sent from the (2) data link layer into bits so it can be transmitted to other physical devices
1 physical layer
A cloud model where the provider supplies virtual infrastructure (like servers, storage, and networking), but the organization manages the operating system, runtime, and applications. Uptime and data center operations are also the organization’s responsibility.
IaaS infrastructure-as-a-service
A cloud model where the cloud provider manages infrastructure and uptime, while the organization designs and runs applications using tools and frameworks provided. It offers a platform but not control over the underlying infrastructure.
PaaS platform-as-a-service
A cloud model where the provider manages everything, including uptime and data center operations. The organization only uses the software without the ability to design or manage the underlying systems.
SaaS software-as-a-service
serve cloud customers using virtual common resources so that multiple organizations share the same virtual infrastructure
multi-tenant CSP
offer clients virtual computing power & resources that can be consumed on an incremental basis; may offer complementary business functions
cloud service providers
a provider that delivers business process outsourcing services to a user
BPaaS business process-as-a-service
uses shared resources over the internet that allows users access to applications & services on a real-time basis
cloud computing
adding more memory, computing power, & resources to the cloud
virtual scalability
the risk that an organization is unable to be portable in terms of moving its CSP-centered operations to another provider
vendor lock-in
examinations in which a third party evaluates & reports on a service organization’s system controls as it relates to the AICPA’s 5 Trust Services Criteria
SOC 2 engagement
