Lesson 4: Network Addressing

Question 1

A variation on the standard MAC address in which the host extension is 36 bits long rather than 24 bits long allowing for more host addresses for each manufacturer’s orgnaizationally unique identifier (OUI). The ___-___ format has now been deprecated by the IEEE in favor of EIU-64.

Answer 1

60 Bit Extended Unique Identifier (EIU-60)

Question 2

A variation on the standard 48 bit MAC address format in which the host extension is 40 bits long, allowing for more host addresses per OUI. ___-___ is especially important because IPv6 uses a modified form og this format to create a unique interface identifiers out of MAC addresses.

Answer 2

64 Bit Extended Unique Identifier (EIU-64)

Question 3

A Microsoft Windows feature which acts as a failover in case a problem occurs when trying to connect to an IP address range.

Answer 3

Automatic Private Internet Protocol Addressing (APIPA)

Question 4

A system of numerical notation using only 2 digits (0 and 1)

Answer 4

Binary

Question 5

A method of communication in which one computer sends packets to all available computers on the network. See multicast and unicast.

Answer 5

Broadcast

Question 6

A method of determining what portion of an IP address is network ID and what portion of an IP address is used to denote host. This method went out of general use around 1993 but is still in use in some routers and other devices today.

Answer 6

Classful IP Addressing

Question 7

A standard that came about as a form of shorthand to indicate what portion of a given IP address is to be used for netork ID and what part is used for host.

Answer 7

Classless Inter-Domain Routing (CIDR)

Question 8

A method of determining what portion of an IP address is host and what portion is network that is based souly on the subnet mask.

Answer 8

Classless IP Addressing

Question 9

A protocol developed to allow IP addresses to be assigned dynamically without requiring constant input from the network administrator.

Answer 9

Dynamic Host Configuration Protocol (DHCP)

Question 10

A method of assigning a different IP address each time a user logs in. See also Static IP Addressing.

Answer 10

Dynamic IP Addressing

Question 11

A variation on the standard 48-bit MAC address in which the host extension portion of the address is allowed to be longer than the conventional 24 bits. The most common versions of EUI are EUI-60 and EUI-64.

Answer 11

Extended Unique Identifier (EIU)

Question 12

A baswe 16 numbering system that replaces every 4 bits with the numerals 0-9 or alphabetic letters A-F. The result is a string of numbers and letters that are much easier for humans to read. See also Binary.

Answer 12

Hexadecimal

Question 13

An interim router on the path between a source end system and a destination end system on a IP network.

Answer 13

Hop

Question 14

The primary end-to-end protocol in the TCP/IP suite, providing connectionless service at the network layer. IP is responsible for some of the most critical functions on a TCP/IP network, including addressung, subnetting, and routing.

Answer 14

Internet Protocol (IP)

Question 15

One of the 2 main versions of IP that is the oldest and most widely used. The logical address used in IPv4 are 32 bits long and are generally expressed in 8-bit digital format.

Answer 15

IP Version 4 (IPv4)

Question 16

An updated version of IP that is the least widely adopted.

Answer 16

IP Version 6 (IPc6)

Question 17

Thephysical binary address that every network device is given when it is created by it’s manufacturer.

Answer 17

MAC Address

Question 18

A method of communication in which a computer sends packets to multiple computers at one time, but not to all computers on the network. (See broadcast and unicast).

Answer 18

Multicast

Question 19

A technology used to stretch out the limited number of IP addresses available to IPv4.

Answer 19

Network Address Translation (NAT)

Question 20

The binary address that every device is given when it’s created by it’s manufacturer. See also MAC Address.

Answer 20

Physical Address

Question 21

A technology that Network Address Translation (NAT) uses to keep track of which device asks for which piece of information.

Answer 21

Port Address Translation (PAT)

Question 22

An IP address which cannot be used on the internet.

Answer 22

Private IP Address

Question 23

A netork which is intended to have direct access to the internet.

Answer 23

Public Network

Question 24

A specific type of NAT in which the router/switch, in charge of the NAT process for the network, changes the source IP address of the request going out of the local network.

Answer 24

Source Network Addess Translation (SNAT)

Question 25

The oldest way to assign IP addresses in which a network administrator randomlty assigns all of them. Eaach user uses the same IP address every time he or she logs in. See Dynamic IP Addressing.

Answer 25

Static IP Addressing

Question 26

The process of taking a given IP address range and breaking it up into smaller pieces so that the range can be used on more than 1 network.

Answer 26

Subnetting

Question 27

The process of combining several IP ranges into one larger network.

Answer 27

Supernetting

Question 28

The most commonly used group of protocols designed to work together to carry out all functions needed for data to be communicated across the netwok.

Answer 28

TCP/IP Protocol Suite

Question 29

A method of communication in which a computer sends a packet to only one computer at a time. See broadcast and multicast.

Answer 29

Unicast