Layer 3 Addressing Flashcards
Layer 3 addresses are assigned to devices using?
Internet Protocol (IP)
Purpose of Internet Protocol?
in order to exchange data on a network
Routed Protocols
Define the way information is packaged and sent from one network device to another.
Simply address the packet of information.
Routing Protocols
Determine the path from the source address to the destination address
(True/False) Layer 3 addresses are built into a piece of hardware?
False, Layer 3 addresses are typically assigned by a network administrator to a particular device.
(True/False) Because these addresses are not tied to a particular piece of hardware, the addresses can be reused when a device is upgraded or replaced with another device?
True
Two General Categories of IP Addresses?
Public IP Addresses
Private IP Addresses
Public IP Addresses
Globally Unique Addresses
Private IP Addresses
Locally Unique Addresses that are not intended to be routable across public networks, such as the internet; instead they are intended to be used only on internal networks.
Two Versions of IP used in networking today
IP Version 4 (IPv4)
IP Version 6 (IPv6)
(True/False) IP is a routed protocol?
True
(True/False) IP is a logical addressing method?
True
What layer of the OSI model do IP operate within?
Network Layer
How many octets, in length, is a basic IPv4 Header (without options)?
20 octets in length
20 octets is = to ____ bytes
20 bytes
20 octets is = to ____ bits
160 bits
How many fields make up an IP header (not including options)
12 fields
Is data part of the IP Packet or IP Header?
IP Packet
How many bit is an IP address number?
32-bit number
Loopback addresses
All addresses in the 127.0.0.0/8 network are reserved for testing purposes.
Private IP addresses
Internal networks
10.0.0.0/8
172.16.0.0/12
192.168.0.0/16
are not routable across the internet
Automatic Private IP Addresses (APIPA)
169.254.0.0/16 addresses are link-local private addresses that are randomly generated by a client when the client cannot dynamically obtain an IP address.
Multicast Addresses
224.0.0.0/4 addresses are used to send a single stream of data to multiple devices simultaneously, thereby conserving bandwidth.
Global Broadcast Address
255.255.255.255 used to send data to every computer on a network or subnetwork.
Binary System
base-2 system
What is base-2 system
meaning that every possible number can be composed of only two different character choices
base-2 counts in?
Binary
base 8 counts in?
Octal
base 10 counts in?
Decimal
base 16 counts in?
Hexadecimal
