1.4 Flashcards
What is needed in order to configure a layer 3 device?
I’ll need to provide the IP address, the subnet mask, and the default gateway.
What is subnet mask used for?
It is used by the local device to determine what subnet it is on.
What is default gateway?
IT is also called the router IP address and it is used to communicate with devices out of the local network.
What are reserved IP addresses?
Block of addresses that will never be used on any layer 3 device (set aside for future use or testing). They range between 240.0.0.1 - 255.255.255.254.
What is a loopback address?
The loopback address is a reserved IP address used for testing purposes and it ranges 127.0.01 - 127.255.255.254
What is a virtual IP?
IP addresses designated to our VMs (Not associated with a physical network adapter)..
How can you communicate outside of a local network?
The router allows you to communicate outside of the local subnet using the default gateway, but the default gateway must be an IP address on the local subnet.
How many classes are for classful subnet mask?
5, class A, B, C, D and E
What does VLSM stand for?
Variable Length Subnet Masks
What is DHCP used for?
Provides automatic address/IP configuration for almost all devices.
What does APIPA stand for?
Automatic Private IP Addressing
What is Static addressing used for?
To assign an IP address that never changes based on MAC address.
What does EUI stand for?
Extended Unique Identifier
What’s the difference between MAC address and EUI-64?
MAC address is only 48 bits but EUI-64 is 64 bits.
What is EUI-64 made of?
EUI-64 combines a 64 bit IPv6 prefix and the MAC address.
