know base 5 Flashcards
What does the acronym OSI stand for?
Open System Interconnection
Layer 1 of the OSI model is:
physcial
Layer 2 of the OSI model is
data link
layer 3 is
network
layer 4
transport
layer 5
session
layer 6
presentation
layer 7
application
encapsulation is
Taking higher level information and packaging it into a package to send to lower levels
What is the highest level in the OSI stack, whose function is to handle communications between the application process (AP) and the computer?
7
What is the OSI layer that ensures that the information is in a format that can be read by both ends?
6
presenation
What is the OSI layer that establishes and maintains the communications connection between the end-user’s applications and also holds responsibility for terminating the session?
5
session
What is the OSI layer responsible for error detection, framing, error recovery, and flow control?
2
What is NOT on of the three MAIN purposes of data networking protocols:
Ensure viruses are not able to enter the network or infect servers or computing devices
What is the three MAIN purposes of data networking protocols:
Ensure that the information traveling on the network reaches its destination
Define the rules, methods, and standards used by the network
etermine what path the information should follow, the type of vehicle it should ride in, the number of stops it needs to make, the alternate routes available, and the time allowed for the trip
The 3 most common layer 2 protocols are
Frame Relay, ATM and Ethernet
What is the most common layer 3 routing protocol now in use?
IP
The MAIN difference between UDP and TCP is:
UDP carries real-time voice traffic with no delay. TCP is used for data and has error correction and will retransmit packets if needed.
Is Fast-packet multiplexing is quickly becoming the multiplexing method of choice?
yes
A connection oriented technology is:
A connection is established in advance of data transmission, like Frame Relay and ATM
