Overview Flashcards
How many layers does the OSI have?
7
What does OSI Model stand for?
Open systems interconnection model
What is the second layer of the OSI model?
Data Link
What is the first layer of the OSI model?
Physical
What is the seventh layer of the OSI model?
Application
What is the fifth layer of the OSI model?
Session
What is the sixth layer of the OSI model?
Presentation
What is the third layer of the OSI model?
Network
What is the fourth layer of the OSI model?
Transport
Which layer of the OSI model is TCP on?
4
Which layer of the OSI model is IP on?
3
What is each “segment” of an IP address called?
Octet
How many bits is an IP address?
32
What is the range of a private class A IP address?
10.0.0.0 - 10.255.255.255
What is the range of a private class B IP address?
172.16.0.0 - 172.31.255.255
What is the range of a private class C IP address?
192.168.0.0 - 192.168.255.255
Using a private class C address, how many devices can you have on each network?
254
What is a subnet?
The division of one network into two or more smaller ones.
Including non-private IPs, what is class A?
1.0.0.0 - 127.255.255.255
Including non-private IP addresses, what is class B?
128.0.0.0 - 191.255.255.255
Including non-private IP addresses, what is class C?
192.0.0.0 - 233.255.255.255
What is a subnet mask?
4 octets which identifies the network address (192.168), and the node address (0.1).
