Cisco NE Module 5 - Communication Principles Flashcards
In both a wired and wireless environment, a local network is defined as an area where all hosts must “s______________________”, which, in computer terms means they must “share a common protocol”.
speak the same language
What does the following acronym stand for?
IETF
What does this organisation do?
Internet Engineering Task Force
They record and publishes internet standards in documents known as:
Requests for Comments (RFC)
OSI Model
What is the acronym that can be used to represent the seven layers of the OSI Model?
All P___ S___ T___N___ D___P___
All
People
Seem
To
Need
Data
Processing
OSI Model
What are the 7 layers?
A______________
P______________
S______________
T______________
N______________
D______________
P_______________
Application
Presentation
Session
Transport
Network
Data Link
Physical
What is the OSI Model?
It is a theoretical model to help us understand_____________________
how networks operate
Like the OSI Model, the TCP/IP Model helps us to understand and standardise networks.
How many layers are there in the TCP/IP Model and what are they?
Hint: A___________
T___________
N_________
D______ L_______
P__________
4
Application
Transport
Network
Data Link
Physical
The Application layer of the TCP/IP Model covers the top three layers of the OSI Model. What are the top three layers of the OSI Model?
A
P
S
Application
Presentation
Session
The Rise of the Ethernet
Ethernet protocols define how data is formatted and how it is transmitted over the w__________ network.
wired
The Rise of the Ethernet
The Ethernet standards specify protocols that operate at Layer ___ and Layer ___ of the OSI model.
Layer 1 and layer 2
The Rise of the Ethernet
What does the IEEE stand for?
The Institute of Electrical and Electronic Engineers
The IEEE maintains the networking standards, including E_______ and w________ standards.
Ethernet and wireless
Each technology standard is assigned a number that refers to the committee that is responsible for approving and maintaining the standard. The committee responsible for the Ethernet standards is _ _ _ . _
802.3
The Ethernet MAC Address
Every Ethernet network interface has a physical address assigned to it when it is manufactured.
This address is known as the M______ A________ C_______ (MAC) address.
The MAC address identifies each source and destination host on the network.
Media Access Control
