Networking

What does NIC stand for?

Network interface card

What is an OSI connection?

Open system interconnection

What is the OSI model?

A depiction for how computers interface with eachother in networked environments

What are the software layers of the OSI model?

5-7, Session(5), Presentation (6), Application(7)

What is the session layer

Manages communication with other endpoints such as retransmission. Ex. sockets, point to point tunnelling, RPC

What is the presentation layer

Translates between the application and session layers; encoding; compresssion; cryptography. Examples include TLS and SSL

What is the application layer?

High level APIS such as HTTP, SMTP, FTP

What does SSL stand for

Secure sockets layer

What does smtp stand for

Simple mail transfer protocol

What does rpc stand for

remote procedure protocol

What are the hardware layers of the OSI model

1-3, Physical(1), Data Link(2), Network(3)

What is the physical layer of the osi model?

Layer 1 Conversion from raw bits to whatever is appropriate for the medium. Ex. CPU, ram, gpu, motherboard, ssd, hdd etc

What is the data link layer of the osi model

Layer 2 Reliable data frame transmission between endpoints from a physical point of view. Ex. Ethernet and wifi

What is the network layer in the osi model?

Layer 3 Addressing, traffic control, routing. Ex IPV4, IPV6. Includes devices like routers and switches.W

What is the transport layer

Layer 4 Ensure reliable transmission of data segments between endpoints. Includes TCP and UDP

What are the three types of buses

Peripheral component interface, PCIeXtended, and PciExpress

What does ASIC stand for?

Application specific integrated circuit

What are ingress and egress

Incoming and outgoing network traffic.

What does fpga stand for

Field programmable gate array