McKi_IPrAd Flashcards
A 32-bit address scheme
IPv4 address
IPv4 addresses are capable of this many possible addresses
4.2 billion
Each section of an IPv4 address is referred to as this
Octet
An IPv4 address is comprised of this many octets
4
Each octet in an IPv4 address contains this many bits
8
IPv4 addresses are written in this format
Decimal
Each octet in an IPv4 address is separated by this
Period
This is the range of possible values in each octet of an IPv4 address
0 thru 255
A 128-bit address scheme
IPv6 address
IPv6 addresses allow for this many unique addresses
340 undecillion
Each section of an IPv6 address is referred to as this
Quartet
An IPv6 address is comprised of this many quartets
8
Each quartet in an IPv6 address represents this many bits of data
16
IPv6 addresses are written in this format
Hexadecimal
Each quartet in an IPv6 address is separated by this
Colon
These are the ranges of possible values in each quartet of an IPv6 address
0 thru 9, A thru F
Binary bits are represented by these
1’s or 0’s
Method of simplifying an IPv6 address by hiding consecutive all-zero blocks
Compression
Method of simplifying an IPv6 address by trimming leading zeros
Suppression
Types of IP addresses not visible to the public
Private IP address
Range of Class A IPv4 addresses
10.0.0.0 thru 10.255.255.255
Range of Class B IPv4 addresses
172.16.0.0 thru 172.31.255.255
Range of Class C IPv4 addresses
192.168.0.0 thru 192.168.255.255
Loopback (also known as local host) IPv4 addresses always start with this number in the first octet
127.x.x.x
This is the most commonly used loopback address for all operating systems
127.0.0.1
Address that allows a computer to loop data back to itself for testing purposes
Loopback (local host) address
APIPA
Automatic Private IP Addressing
Enables computers to assign an IP address automatically to itself when a DHCP server is unreachable
Automatic Private IP Addressing (APIPA)
APIPA addresses always begin with these two numbers in the first two octets
169.254.x.x
This is an address that is leased and is subject to change
Dynamic IP address
This is a unique address that does not change
Static IP address
30.120.57.4, 172.10.34.206, 201.45.21.50 are all examples of
Public IPv4 addresses
Many customers may request this, since most server applications may require a predictable connection
Static IP address
Customers requesting a static IP(s) will be issued this, containing all IP addresses needed for their network
Subnet Block
A subnet block contains these IP addresses
Network, Routable, Gateway, Broadcast
First physical address in the subnet block identified with a CIDR notation
Network IP
Address used by all devices assigned a routable IP address as an entry and exit point to a network
Gateway IP
Last physical address in the subnet block
Broadcast IP
CIDR
Classless Inter-Domain Routing
Notation used to identify all IP addresses in a subnet block
Classless Inter-Domain Routing (CIDR) notation
This is the CIDR notation for a customer that has 13 static IPs
/28
This is the CIDR notation for a customer that has 5 static IPs
/29
This is the CIDR notation for a customer that has 1 static IP
/30
This is the subnet mask of a customer with a CIDR of /28
255.255.255.240
This is the subnet mask of a customer with a CIDR of /29
255.255.255.248
This is the subnet mask of a customer with a CIDR of /30
255.255.255.252
Static IP addresses do not function with this enabled
Bridge Mode
Software program that serves web pages to users
Web server
Stores all email accounts and provides email services to individuals
Email server
Comcast’s preferred DNS
75.75.75.75
Comcast’s alternate DNS
75.75.76.76
A customer will require this many static IP addresses if they have multiple servers using different ports
One
A customer will require this many static IP addresses if they have multiple servers using the same ports
5 or 13
In order to receive a static IP address, the customer must use this
Comcast-issued IP gateway
