Network Addressing

Question 0

How many IPv4 classes?

Answer 0

Five classes (Class A-E)

Question 1

APIPA address

Answer 1

169.254.X.X

Question 2

How big is class A and what is the range?

Answer 2

Large networks

0.0.0.0. - 127.255.255.255

Question 3

How big is class B and what is the range?

Answer 3

Medium networks

128.0.0.0 - 191.255.255.255

Question 4

How big is class C and what is the range?

Answer 4

Small networks

192.0.0.0 - 223.255.255.255

Question 5

How big is class D and what is the range?

Answer 5

Multicast

224.0.0.0 - 239.255.255.255

Question 6

How big is class E and what is the range?

Answer 6

Experimental

240.0.0.0 - 247.255.255.255

Question 7

Name the IPv4 Private Addresses

Answer 7

Classes A,B and C

Question 8

IPv4 private address range for Class A

Answer 8

10.0.0.0 - 10.255.255.255

Question 9

IPv4 private address range for Class B

Answer 9

172.16.0.0 - 172.31.255.255

Question 10

IPv4 private address range for Class C

Answer 10

192.168.0.0 - 192.168.255.255

Question 11

Subnet mask determines what?

Answer 11

Which section is network and which section is host

Question 12

What is CIDR?

Answer 12

Classes Inter-domain notation

Counting 1’s from left to right, then notated as “/#”
Example:
11111111.11111111.11100000.00000000 = /19

Question 13

What are the common CIDR defaults?

Answer 13

/8 - 255.0.0.0
/12 - 255.240.0.0
/24 - 255.255.255.0

Question 14

10000000

Answer 14

128

Question 15

11000000

Answer 15

192

Question 16

11100000

Answer 16

224

Question 17

11110000

Answer 17

240

Question 18

11111000

Answer 18

248

Question 19

11111100

Answer 19

252

Question 20

11111110

Answer 20

254

Question 21

11111111

Answer 21

255

Question 22

What is the default subnet mask for Class A private?

Answer 22

255.0.0.0

Question 23

What is the default subnet mask for Class B private?

Answer 23

255.240.0.0

Question 24

What is the default subnet mask for Class C private?

Answer 24

255.255.0.0

Question 25

What address is reserved for loop back? Aka “home” pinging yourself to ensure NIC is sending/receiving data

Answer 25

127.X.X.X/8