Chapter 7 - Supplement - Sheet1 (1) Flashcards
Bit
A bit is one digit, either a 1 or a 0.
Byte
A byte is 7 or 8 bits, depending on whether parity is used.
Octet
An octet, made up of 8 bits, is just an ordinary 8-bit binary number. A section of an ip address
Network address
uniquely identifies each network. This is the designation used in routing to send packets to a remote network—for example, 10.0.0.0, 172.16.0.0, and 192.168.10.0
Broadcast address
The broadcast address is used by applications and hosts to send information to all hosts on a network.
Broadcast address which designates
all networks and all hosts
255.255.255.255
Boradcast address which specifies all subnets and hosts
on network 172.16.0.0
172.16.255.255
Broadcast address for all subnets and hosts on
network 10.0.0.0
10.255.255.255
What is the network address of 172.16.30.56
172.16
Host address
assigned to, and uniquely identifies, each machine on a network. This part of the address must be unique because it identifies a particular machine—an individual—as opposed to a network, which is a group
What is the host address of 172.16.30.56?
30.56
Which octets are set aside for network and host addresses in a class A network?
Network.Host.Host.Host
Which octets are set aside for network and host addresses in a class B network?
Network.Network.Host.Host
Which octets are set aside for network and host addresses in a class C network?
Network.Network.Network.Host
APIPA
Automatic Private IP Addressing. With APIPA, clients can automatically self-configure an IP address and subnet mask
IP Range for APIPA
169.254.0.1 through 169.254.255.254
Subnet mask for APIPA
255.255.0.0
Layer 2 broadcasts
Hardware broadcasts. These are sent to all nodes on a LAN. AKA hardware broadcasts. Don’t go beyond the router. All 1s, or in hex, Fs
Layer 3 broadcasts
Network broadcasts. These are sent to all nodes on the network. Example: ARP (Address Resolution Protocol)
Unicast Address
A unicast address is assigned to a single interface, and this term is used both in IPv4 and
IPv6 to describe your host interface IP address
172.16.255.255 is an example of what type of address
Layer 3 Broadcast
255.255.255 is an example of what type of address? What is the target of the address?
Layer 3 Broadcast, all networks/all hosts
How many addresses will IPv6 provide?
3.4 x 10^38
How many bits is IPv6?
128 bits
0:0:0:0:0:0:0:0
Equals ::. This is the equivalent of IPv4’s 0.0.0.0 and is typically the
source address of a host when you’re using stateful configuration (DHCP).
0:0:0:0:0:0:0:1
Equals ::1. The equivalent of 127.0.0.1 in IPv4.
0:0:0:0:0:0:192.168.100.1
This is how an IPv4 address would be written in a mixed IPv6/
IPv4 network environment.
The global unicast address range in ipv6
2000::/3
The unique local unicast range in ipv6
FC00::/7
The link-local unicast range in ipv6
FE80::/10
The multicast range in ipv6
FF00::/8
Reserved for examples and documentation in ipv6
3FFF:FFFF::/32 and 2001:0DB8::/32
2002::/16
Used with 6to4, which is the transition system—the structure that allows IPv6
packets to be transmitted over an IPv4 network without the need to configure explicit tunnels
Class A Network Range
The IP range for a Class A network is 1 through 126. This
provides 8 bits of network addressing and 24 bits of host addressing by default
Class B Network Range
The IP range for a Class B network is 128 through 191. Class B
addressing provides 16 bits of network addressing and 16 bits of host addressing by default.
Class C Network Range
The IP range for a Class C network is 192 through 223. Class
C addressing provides 24 bits of network addressing and 8 bits of host addressing by default
Class A Private IP Range
The Class A private address range is 10.0.0.0 through
10.255.255.255.
Class B Private IP Range
The Class B private address range is 172.16.0.0 through 172.31.255.255
Class C Private IP Range
The Class C private address range is 192.168.0.0 through 192.168.255.255.
How many bits is ipv4?
32 bits
ipv6 is represented in ____
Hex
ipv4 is represented in ____
decimal
Link-local ipv6 address
Link-local is like an IPv4 private IP address, but it can’t be routed
at all, not even in your organization
Unique local ipv6 address
This, like link-local, is like a private IP address in IPv4 and cannot
be routed to the Internet. However, the difference between link-local and unique local
is that unique local can be routed within your organization or company
What is the valid range used for a class C private IP address?
Class C private range is 192.168.0.0 through 192.168.255.255
Name some of the benefits of IPv6 over IPv4.
More available addresses, simpler header, options for authentication and other security
What is the term for the auto-configuration technology responsible for addresses that
start with 169.254?
Automatic Private IP Addressing (APIPA)
What defines a unicast address?
An IP address assigned to an interface
What defines a multicast address?
One-to-many address
What is the name for a 48-bit (6-byte) numerical address physically assigned to a network
interface, such as a NIC?
MAC address
What gives IPv6 the ability to reference more addresses than IPv4?
IPv6 has a 128 bit address (16 octet), compared to IPv4’s 32-bit address (4-octet)
What is the Class C range of values for the first octet in decimal and in binary?
192-223, 110xxxxx
What is the private address range for class B networks?
172.16.0.0 through 172.31.255.255
What is the 127.0.0.1 address used for?
Loopback or diagnostics
