IP Addressing

Question 1

Private IP address blocks

Answer 1

10. 0.0.0/8
11. 16.0.0/12
12. 168.0.0/16

Question 2

IPv4 default route

Answer 2

0.0.0.0

Question 3

Loop back address

Answer 3

127.0.0.0/8

Directs traffic to same host

Question 4

Link-local addresses

Answer 4

169.254.0.0/16

Can be automatically assigned to clients by OS when no IP configuration is available

Question 5

Formula to calculate the # of subneta

Answer 5

2 to the n power

Where n = number of bits borrowed

Question 6

128 in binary

/25

Answer 6

10000000

Question 7

192 in binary

/26

Answer 7

11000000

Question 8

224 in binary

/27

Answer 8

11100000

Question 9

240 in binary

/28

Answer 9

11110000

Question 10

248 in binary

/29

Answer 10

11111000

Question 11

252 in binary

/30

Answer 11

11111100

Question 12

254 in binary

/31

Answer 12

11111110

Question 13

4 steps to subnetting

Answer 13

1) determine how many bits to borrow based on network requirements
2) determine new subnet mask
3) determine subent multiplier
4) list subnets including subnetwork address, host range, and broadcast address

Question 14

2 to the 2nd

Answer 14

4

Question 15

2 to the 3rd

Answer 15

8

Question 16

2 to the 4th

Answer 16

16

Question 17

2 to the 5th

Answer 17

32

Question 18

2 to the 6th

Answer 18

64

Question 19

2 to the 7th

Answer 19

128

Question 20

2 to the 8th

Answer 20

256

Question 21

2 to the 9th

Answer 21

512

Question 22

2 to the 10th

Answer 22

1024

Question 23

how to summarize subnet addresses

Answer 23

1) write out networks in binary
2) start w/ left most bit
3) work right and fall all consecutively matching bits
4) when you find a column of bits that do not match, stop. you are at the summary boundary.
5) count # of matching bits, this is subnet mask
6) copy matching bits for summary network address

Question 24

in IPv6 what analogous to a subnet mask

Answer 24

prefix

-if prefix length is not on quartet boundary write down value for entire quartet

Question 25

how to abbreviate IPv6 address

Answer 25

- omit leading 0s in any given quartet | - represent 1 or more consecutive quartets of all hex 0s with a double colon (::), but only for one such occurrence

Question 26

IPv6 address

Answer 26

128 bit | -represented in 8 quartets of 4 hex digits

Question 27

IPv6 loopback address

Answer 27

::1

Question 28

IPv4 to IPv6 transition methods

Answer 28

- dual stacking - tunneling - NAT-protocol translation

Question 29

What IPv6 address type is commonly used for establishing neighbor relationships for routing protocols?

Answer 29

Link local address

Question 30

How to identify a class a address in binary

Answer 30

Always begins with a 0 Range for 0 to 127 in first octet Network.node.node.node

Question 31

How to identify a class b address

Answer 31

Always begins with 10 in first octet Range of 128-191 Network.network.node.node

Question 32

How to identify class c address

Answer 32

Always begins with 110 in binary Ranges from 192-223 Network.network.network.node

Question 33

Private class a address range

Answer 33

10.0.0.0 - 10.255.255.255

Question 34

Private class b address space

Answer 34

172.16.0.0 - 172.31.255.255

Question 35

Private class c address space

Answer 35

192.168.0.0 - 192.168.255.255

Question 36

Easy to determine powers of 2

Answer 36

To find 2 to the 6th you can double 2 to the 5 etc.

Question 37

/9 mask

Answer 37

255.128.0.0

Question 38

/10 mask

Answer 38

255.192.0.0

Question 39

/11 mask

Answer 39

255.224.0.0

Question 40

/12 mask

Answer 40

255.240.0.0

Question 41

/13 mask

Answer 41

255.248.0.0

Question 42

/14 mask

Answer 42

255.252.0.0

Question 43

/15 mask

Answer 43

255.254.0.0

Question 44

/16 mask

Answer 44

255.255.0.0

Question 45

/17 mask

Answer 45

255.255.128.0

Question 46

/18 mask

Answer 46

255.255.192.0

Question 47

/19 mask

Answer 47

255.255.224.0

Question 48

/20

Answer 48

255.255.240.0

Question 49

/20 mask

Answer 49

255.255.240.0

Question 50

/21 mask

Answer 50

255.255.248.0

Question 51

/22 mask

Answer 51

255.255.252.0

Question 52

/23 mask

Answer 52

255.255.254.0

Question 53

/24 mask

Answer 53

255.255.255.0

Question 54

/25 mask

Answer 54

255.255.255.128 1 bit on, 7 off Block size of 128 2 subnets, each with 126 hosts

Question 55

/26 mask

Answer 55

255.255.255.192 2 bits on, 6 bits off Block size 64 4 subnets, each with 62 hosts

Question 56

/27 mask

Answer 56

255.255.255.224 3 bits on, 5 off Block size 33 8 subnets with 30 hosts

Question 57

/28

Answer 57

255.255.255.240 4 bits on 4 off Block size 16 16 subnets with 14 hosts

Question 58

/29 mask

Answer 58

255.255.255.248 5 bits on 3 off Block size 8 32 subnets with 6 hosts

Question 59

/30 mask

Answer 59

255.255.255.252 6 bits on 2 off Block size 4 64 subnets with 2 hosts

Question 60

How to determine number of available subnets

Answer 60

2 to the x power X=number of masked bits in subnet mask

Question 61

How many hosts per subnet

Answer 61

2 to the y - 2 Y = number of unmasked bits or 0s in subnet mask

Question 62

What are the valid subnets?

Answer 62

256 - subnet mask = block size Start counting from 0 in increments of the block size until you reach subnet mask value

Question 63

Figure wildcard mask from block size

Answer 63

Subtract one from block size A block size of 16 would have a wildcard of .15

Question 64

NAT inside local address

Answer 64

Name of inside source address before translation

Question 65

NAT outside local address

Answer 65

Name of destination host after translation

Question 66

NAT inside global address

Answer 66

Name of inside host after translation

Question 67

NAT outside global address

Answer 67

Name if outside destination host before translation

Question 68

Command to enable IPv6 on router

Answer 68

Ipv6 uno cast-routing

Question 69

Command to add ipv6 address to router interface

Answer 69

Ipv6 address / [eui-64]