IP Concepts Flashcards
Not linked to modules but important
What is 00000000
in decimal?
0
What is 240 in binary?
11110000
What is 192 in binary?
11000000
What is 10000000
in decimal?
128
What is 11111110
in decimal?
254
What is 128 in binary?
10000000
What is 11111111
in decimal?
255
What is 248 in binary?
11111000
What is 224 in binary?
11100000
what is 252 in binary?
11111100
What is 11110000
in decimal?
240
What is 11111111
in decimal?
255
What is 192 in binary?
11000000
What is 11111110
in decimal?
254
What is 11111000
in decimal?
248
What is 00000000
in decimal?
0
What is 224 in binary?
11100000
What is 252 in binary?
11111100
What is 10.0.0.1 in binary?
00001010.00000000.00000000.00000001
What is 192.135.64.5 in binary?
11000000.10000111.1000000.101
What is 10.250.19.88 in binary?
1010.11111010.10011.1011000
What is 172 in binary?
10101100
What is 8.56.140.33 in binary?
00001000.00111000.10001100.00100001
What is 203.1.77.144 in binary?
11001011.00000001.01001101.10010000
What is 195.17.46.12 in binary?
11000011.00010001.00101110.00001100
What is 101.200.15.66 in binary?
01100101.11001000.00001111.01000010
What is 39 in binary?
100111
What is 220 in binary?
11011100
What is 154 in binary?
10011010
What is 250 in binary?
11111010
What is 87 in binary?
1010111
How many usable IP addresses are in a /27 network?
30
Total IPs = 2^(32-CIDR) then subtract 2 (network and broadcast)
2^(32-27) = 2^5 = 32
32-2 = 30
What is the subnet mask for a /14 CIDR network?
255.252.0.0
Convert the CIDR prefix into binary 1’s and count them
11111111.11111100.0.0
Now convert the binary into decimal
255.252.0.0
How many usable IP addresses are in a /26 network?
62
What is the subnet mask for a /22 CIDR network?
255.255.252.0
What is the subnet mask for a /17 CIDR network?
255.255.128.0
What is the subnet mask for a /15 CIDR network?
255.254.0.0
How many usable IP addresses are in a /21 network?
2,046
What is the CIDR notation for the subnet mask 255.255.255.0?
/24
What is the subnet mask for a /29 CIDR network?
255.255.255.248
What is the subnet mask for a /16 CIDR network?
255.255.0.0
What is the subnet mask for a /30 CIDR network?
255.255.255.252
How many usable IP addresses are in a /25 network?
126
What is the CIDR notation for the subnet mask 255.192.0.0?
/10
What is the CIDR notation for the subnet mask 255.255.255.224?
/27
What is the subnet mask for a /22 CIDR network?
255.255.252.0
What is the subnet mask for a /15 CIDR network?
255.254.0.0
How many usable IP addresses are in a /30 network?
2
What is the subnet mask for a /18 CIDR network?
255.255.192.0
What is the subnet mask for a /12 CIDR network?
255.240.0.0
What is the subnet mask for a /14 CIDR network?
255.252.0.0
What is the CIDR notation for the subnet mask 255.255.255.254?
/31
How many usable IP addresses are in a /28 network?
14
What is the subnet mask for a /16 CIDR network?
255.255.0.0
What is the subnet mask for a /8 CIDR network?
255.0.0.0
What is the CIDR notation for the subnet mask 255.255.248.0?
/21
What is the CIDR notation for the subnet mask 255.255.255.128?
/25
What is the subnet mask for a /13 CIDR network?
255.248.0.0
How many usable IP addresses are in a /25 network?
126
What is the CIDR notation for the subnet mask 255.255.240.0?
/20
What is the CIDR notation for the subnet mask 255.224.0.0?
/11
What is the CIDR notation for the subnet mask 255.254.0.0?
/15
What is the CIDR notation for the subnet mask 255.255.224.0?
/19
How many usable IP addresses are in a /25 network?
126
What is the subnet mask for a /18 CIDR network?
255.255.192.0
What is the binary for 1?
00000001
What is the binary for 2?
00000010
What is the binary for 4?
00000100
What is the binary for 8?
00001000
What is the binary for 16?
00010000
What is the binary for 32?
00100000
What is the binary for 64?
01000000
What is the binary for 128?
10000000
What is the binary for 192?
11000000
What is the binary for 224?
11100000
What is the binary for 240?
11110000
What is the binary for 248?
11111000
What is the binary for 252?
11111100
What is the binary for 254?
11111110
What is the binary for 255?
11111111