QUESTIONS AND CORRECT DETAILED ANSWERS
(CERTIFIED ANSWERS) 2025
Terms in this set (58)
OSI Model Layers Application
Presentation
Session
Transport
Network
Data Link
Physical
Will OSI Model Layers No, only talk to the same layer on the other device.
communicate with
different layers
Can OSI Layer 2 No, OSI Layers can only communicate with layers one above or
communicate will layer 5 below.
What is the Purpose of the Provide a model to describe how data moves from source
OSI Model device to destination device.
What are the responsibilities Transmission of bits over medium.
of Layer 1 of the OSI Model
What is the Physical medium Cables, Connectors, NIC, Repeaters, and Hubs
that Layer 1 of the OSI model
use to transmit data.
For Node to Node delivery & creates frames & Physical
What is the
Address ( MAC Address).
Responsibilities of the Data
Link Layer.
, What does the Data Link Access, Flow, and Error
Layer responsible to control
Describe Transmission Establishing & Terminating, Media Access
Control's function Management, Flow Control, Error Control, Access Control.
What does the logical link To use either the connectionless or connection oriented.
control (LLC) sublayer of the
data link layer determines?
What are the basic functions Packet Addressing, Address Conversion, Source-toDestination
of the Network Delivery, & Routing.
Layer
Does a router determine Yes
the best path to
destination?
Does the Router provide It Provides Logical Address scheme
physical or logical
connections for the
network
Packetizing at the network Creates packet from transport layer, encapsulation, and
layer involves applied IP address both source and destination.
Fragmentation at the Divides large packets into smaller ones so it can be sent
network layer does easier.
The responsibilities of the End to end message delivery, error checking, distinguishes
transport layer application protocol, and adds port value.
What are the functions of Message acknowledgment, session multiplexing, and service point
the transport layer address
User datagram protocol (UDP) & Transmission Control
What are the two major
protocols in the transport Protocol (TCP)
layer.