High-lighted Concepts Flashcards

1
Q

Difference between IPv4 and IPv6

A

4 - 32bits decimal, used most, can handle NAT hardware
6 - 128bit Hexi-decimal, simple header and larger address space

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2
Q

Why IPv6 has been slow to adopt

A

4 is most used, is supported by more hardware, and uses NAT
6 - is static only, lacks supported router protocols NAT isn’t supported by hardware

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3
Q

Why was IPv6 needed

A

IPv4 is running out of Space

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4
Q

How many addresses are available for IPv4 and 6

A

4 - 340 Trillion, 6 - 4.2 billion

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5
Q

What are the key internet standards organizations

A

IETF, ISOC, IAB, IRTF, W3C

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6
Q

IETF

A

Internet engineering task force

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7
Q

ISCO

A

Internet scociety

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8
Q

IAB

A

Internet architecture board

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9
Q

IRTF

A

Internet research task force

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10
Q

W3C

A

Worldwide web consortium

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11
Q

ARIN

A

American registry of internet numbers

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12
Q

What is ARIN’s role

A

ARIN’s primary function is the registration of IP addresses and ASNs, collectively referred to as Internet number resources. These resources are delegated in a way to ensure global uniqueness. ARIN also operates directory services which allow the public to determine to whom those number resources are issued.

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13
Q

What is the role of internet registries

A

Assigns and allocates IP numbers

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14
Q

How many regional Internet registries are there

A

5 : APNIC, ARIN, RIPE NCC, LACNIC, AFRINIC

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15
Q

APNIC, ARIN, RIPE NCC, LACNIC, AFRINIC

A

APNIC - Asia Pacific network info center
ARIN - American registry for internet numbers
RIPENCC - European IP network coordination center
LACNIC - Latin American and Caribbean network info center
AFRINIC - African Network info center

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16
Q

Cost structure for obtaining blocks of IP addresses

A

Per IP address by regional registry area

17
Q

Types of IP addresses

A

Public, private, static, dynamic

18
Q

What is subnet mask used for

A

Determining the Network and host portions of an IP address usually for subnetting

19
Q

IP address classes

A

Public - A,B,C,D,E
Private - A,B,C, APIPA

20
Q

Public IP class ranges

A

A - 1-127
B - 128-191
C - 192-223
D - 224-239 Multicasting
E - 240-255 Experimental

21
Q

Private IP class ranges

A

A - 10
B - 172.16-31
C - 192.168-255
APIPA - 169.254.1.0-169.254.254.255
Future use RFC3927-169.254.0.0 (1st/last 256)

22
Q

Rules and procedures for communication and behavior

A

Protocol

23
Q

How did Internet Protocols come into existence

A

ARPANET growth led to Bob Kahn and Uint Cerf creating IP addresses and has grown to the current IANA assigning IP addresses