CN Final Exam

Which statement is correct about network protocols?

What is an advantage of using standards to develop and implement protocols?

Products from different manufacturers can interoperate successfully.

At which layer of the OSI model would a logical address be encapsulated?

network layer

Which PDU format is used when bits are received from the network medium by the NIC of a host?

frame

Which PDU is processed when a host computer is de-encapsulating a message at the transport layer of the TCP/IP model?

segment (tcp) or datagram (udp)

The organization promotes the open development, evolution, and use of the internet throughout the world

ISOC - Internet Society

This organization is the largest developer of international standars in the world for a wide variety of products and services. It is know for its Open System Interconection (OSI) reference model.

ISO - International Organization for Standardization.

This organization is responsible for overseeing and managing IP address allocation, domain name management, and protocol identifiers

EIA - Electronic Industries Alliance.

The organisation that manages global IP addresses, DNS root zone, and protocol identifiers to ensure unique Internet resource assignment.

IANA - Internet Assigned Numbers Authority.

Role of the data link layer

a communicator between the physical layer utilising the mac sublayer for correct media type along with delimitting. LLC communicates with the network layer to encapsulate ip packets or send frames into the network layer.

Multiplexing

sending smaller individual pieces from source to destination, many different conversations can be interleaved on the network. This is called multiplexing.