slide 10 Flashcards
layer 1
physical layer
The physical layer defines the hi
ghway, the speed limit, and the
physical shape of the vehicle.
The physical layer formats the signal according to mechanical,
electrical, and functional parameters associated with the type
of signal and medium deployed
layer 2
data link
The Data Link Layer is the interface between the network link
layer and the physical layer.
The Data Link Layer ties the netwo
rk protocol to the physical
medium being used to transport the ones and zeros
layer 3
The Network Layer is responsible for the routing of packets, flow
control, translating interface port information from Layer 2, and
assigning packet delivery.
layer 4
transport
The Transport Layer is responsible for taking data from an
application, formatting it into segments that fit into standard
size packets, stamping the segment with the type of data
contained in the segment, and ensuring the packet is received
by the end device in the correct order and within a timely
manner
layer 5
session
The Session Layer converts the Application Layer address into a
format the transport layer can read.
It also sets end device communications setting
layer 6
presentation
The Presentation Layer converts the Application Layer address
into a format the transport layer The Application Layer protocols take the information created by
the user and package it in a form
at acceptable to the lower level
protocolscan read.
It also sets end device communications settings
application layer
v
What is the highest level in the OSI stack, whose function is to handle communications between the application process (AP) and the computer?
7 application
What is the OSI layer that ensures that the information is in a format that can be read by both ends?
presentatiton layer
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
sessions 5
What is the OSI layer responsible for error detection, framing, error recovery, and flow control?
data link 2
Fall 2017
Home
Announcements
Assignments
Grades
People
Pages
Files
Syllabus
Quizzes
Modules
Conferences
Collaborations
CCCConfer
Chat
Knowledge Base 5 - Chapters 5-8 OSI
Due Oct 2 at 2:35pm Points 20 Questions 20 Available Sep 25 at 8am - Oct 2 at 2:35pm 7 days Time Limit 30 Minutes Allowed Attempts 2
Instructions
Use chapters 5-8 reading and power points to aid in completing this knowledge base.
The knowledge and skills you should retain after completing this assignment are:
Understanding of the OSI model and why it was created Knowledge of each layer and the associated protocols Understanding of how information is moved between layers
This quiz was locked Oct 2 at 2:35pm. Attempt History Attempt Time Score KEPT Attempt 1 9 minutes 16 out of 20 LATEST Attempt 2 2 minutes 15 out of 20 Attempt 1 9 minutes 16 out of 20 Score for this attempt: 15 out of 20 Submitted Sep 27 at 6:54pm This attempt took 2 minutes.
Question 1 1 / 1 pts What does the acronym OSI stand for? Open Session Initiation Operating System Input None of the listed choices Correct! Open System Interconnection
Question 2
1 / 1 pts
Layer 1 of the OSI model is:
(you must have correct spelling, do not use the word layer in your answer) Correct! Correct Answers Physical physical
Question 3
0 / 1 pts
Layer 2 of the OSI model is:
(you must have correct spelling, do not use the word layer in your answer) You Answered Correct Answers Datalink data link Data Link datalink
Question 4
1 / 1 pts
Layer 3 of the OSI model is:
(you must have correct spelling, do not use the word layer in your answer) Correct! Correct Answers network Network
Question 5
0 / 1 pts
Layer 4 of the OSI model is:
(you must have correct spelling, do not use the word layer in your answer) You Answered Correct Answers Transport transport
Question 6
0 / 1 pts
Layer 5 of the OSI model is:
(you must have correct spelling, do not use the word layer in your answer) You Answered Correct Answers session Session
Question 7
0 / 1 pts
Layer 6 of the OSI model is:
(you must have correct spelling, do not use the word layer in your answer) You Answered Correct Answers Presentation presentation
Question 8
1 / 1 pts
Layer 7 of the OSI model is:
(you must have correct spelling, do not use the word layer in your answer) Correct! Correct Answers application Application
Question 9
1 / 1 pts
Encapsulation is:
all of the listed choices
Putting information into a capsul to send onto the network
Correct!
Taking higher level information and packaging it into a package to send to lower levels
none of the listed choices
sealing the information so it is secure
Question 10
1 / 1 pts
What is the highest level in the OSI stack, whose function is to handle communications between the application process (AP) and the computer?
(just enter the layer number 1 through 7 for your answer)
Correct!
Correct Answers
7.0 (with margin: 0.0)
Question 11
0 / 1 pts
What is the OSI layer that ensures that the information is in a format that can be read by both ends?
(just enter the layer number 1 through 7 for your answer)
You Answered
Correct Answers
6.0 (with margin: 0.0)
Question 12
1 / 1 pts
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?
(just enter the layer number 1 through 7 for your answer)
Correct!
Correct Answers
5.0 (with margin: 0.0)
Question 13
1 / 1 pts
What is the OSI layer responsible for error detection, framing, error recovery, and flow control?
(just enter the layer number 1 through 7 for your answer)
Correct!
Correct Answers
2.0 (with margin: 0.0)
Question 14
1 / 1 pts
What is NOT on of 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
Correct!
Ensure viruses are not able to enter the network or infect servers or computing devices
Determine 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
Question 15
1 / 1 pts
The 3 most common layer 2 protocols are
frame relay ehternet and ATM
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.
A connection oriented technology is:
A connection is established in advance of data transmission, like Frame Relay and ATM
