IPv4

Question 1

IPv4

Answer 1

32-bit address written in dotted-decimal notation.

Question 2

Octet

Answer 2

8-bit portion of IP address. There are 4 octets in an IP address.

Question 3

Subnet Mask

Answer 3

Determines which bits of an IP address belong to the network and the host.

Question 4

Prefix Notation

Answer 4

aka Slash Notation

/number of bits used for network portion of address

Question 5

Classful Masks

Answer 5

Default subnet masks associated with Class A, B, and C addresses

Question 6

Loopback IP Address

Answer 6

Address with 127 in the first octet.

Represents the device itself.

Question 7

NAT

Answer 7

Network Address Translation

Router converts private IP addresses to publicly routable addresses.

Question 8

Types of Addresses

Answer 8

Unicast
Broadcast
Mutlicast

Question 9

Broadcast Domain

Answer 9

Address to target all devices on a subnet / network

Question 10

255.255.255.255

Answer 10

Targets all devices on the network local to the sending device

Question 11

Directed Broadcast Address

Answer 11

Targets all devices on a remote network.

Question 12

Default Gateway

Answer 12

Routes traffic from sender’s subnet to destination subnet

Question 13

FQDN

Answer 13

Fully Qualified Domain Name

Question 14

DNS

Answer 14

Domain Name Systrem

Translates FQDN into IP address

Question 15

DHCP

Answer 15

Dynamic Host Configuration Protocol

Question 16

Scope

Answer 16

Range of IP addresses available for a DHCP server to lease to hosts

Question 17

APIPA

Answer 17

Automatic Private IP Addressing

Allows a networked device to self-assign an IP address in the 169.254.0.0 block.

Question 18

Interesting Octet

Answer 18

Octet containing last 1 in the subnet mask.