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jpf-netplus-1.4

Section 1.4

QuestionAnswer
What are the ingredients for Subnetting IP Address, Subnet Mask, Default Gateway
An IP address is a combination of? Network ID and Host ID
Class A subnet mask Which class mask is 255.0.0.0
Class B subnet mask Which class mask is 255.255.0.0
Class C subnet mask Which class mask is 255.255.255.0
Class A Address range 0.0.0.0 to 127.255.255.255
Class B Address range 128.0.0.0 to 191.255.255.255
Class C Address range 192.0.0.0 to 223.255.255.255
Class A Address Leading bits 0xxx
Class B Address Leading bits 10xx
Class C Address Leading bits 110x
CIDR Classless Inter-Domain Routing Removes restriction by classfull subnet masks
What is supernetting makes many different network look like a single network
Class A Private Address Range 10.0.0.0 to 10.255.255.255 or 10.0.0.0/8
Class B Private Address Range 172.16.0.0 to 172.31.255.255 or 172.16.0.0/12
Class C Private Address Range 192.168.0.0 to 192.168.255.255 or 192.168.0.0/16
Private addresses Are non-routable
What does NAT stand for? Network Address Translation
What does NAT do? Converts a Private Address to a Public IP
At what layer does NAT work Works on layer 3
What does SNAT stand for? Source Network Address Translation.
What does SNAT do? Converts large number of IP to ONE external address.
What does DNAT stand for? Destination Network Address Translation.
What does DNAT do? Commonly used to publish a service located in a private network on a publicly accessible IP address. This use of DNAT is also called port forwarding.
What does PAT stand for? Port Address Translation.
What does PAT do Converts Port Numbers.
What does DHCP stand for? Dynamic Host Configuration Protocol
What does DHCP Configure automatically IP address and subnet mask. Requires a DHCP server
What is a Static Address Address is assigned by MAC address in the DHCP server, the address is always the same logical address.
What is a Dynamic address Address that is assigned from a pool of available IP addresses in the DHCP server. They have a lease time.
What does APIPA stand for Automatic Private IP Address
What does APIPA Assigns an IP if no DHCP is available
What is the APIPA Address range 169.254.0.1 to 169.254.255.254
Created by: jerryfreund
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