# CCNA Cidr To Number Of Hosts Memorization

14 Questions | Total Attempts: 254

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CCNA CIDR to Number of Hosts Memorization. Helps you to remember the number of hosts by looking at the CIDR notation. Note: These are the # of usable hosts. add 2 for total # of hosts.

• 1.
How many hosts are available with a CIDR of /17 on a class B network?Example: 172.16.0.0/17Note: These are the # of usable hosts.
• A.

8190

• B.

2046

• C.

32766

• D.

262142

• E.

16382

• 2.
How many hosts are available with a CIDR of /18 on a class B network? Example: 172.16.3.8/18 Note: These are the # of usable hosts.
• A.

32766

• B.

8190

• C.

16382

• D.

126

• E.

4094

• 3.
How many hosts are available with a CIDR of /19 on a class B network? Example: 172.16.2.0/19 Note: These are the # of usable hosts.
• A.

16382

• B.

32766

• C.

126

• D.

8190

• E.

1022

• 4.
How many hosts are available with a CIDR of /20 on a class B network? Example: 172.16.0.0/20 Note: These are the # of usable hosts.
• A.

4094

• B.

32766

• C.

8190

• D.

2046

• E.

254

• 5.
How many hosts are available with a CIDR of /21 on a class B network? Example: 172.16.0.0/21 Note: These are the # of usable hosts.
• A.

4096

• B.

8190

• C.

254

• D.

126

• E.

2046

• 6.
How many hosts are available with a CIDR of /22 on a class B network? Example: 172.16.0.0/22 Note: These are the # of usable hosts.
• A.

2046

• B.

8190

• C.

510

• D.

1022

• E.

254

• 7.
How many hosts are available with a CIDR of /23 on a class B network? Example: 172.16.0.0/23 Note: These are the # of usable hosts.
• A.

126

• B.

62

• C.

14

• D.

254

• E.

510

• 8.
How many hosts are available with a CIDR of /24 on a class B network? Example: 172.16.0.0/24 Note: These are the # of usable hosts.
• A.

254

• B.

1022

• C.

2046

• D.

126

• E.

62

• 9.
How many hosts are available with a CIDR of /25 on a class C network? Example: 192.168.1.1/25 Note: These are the # of usable hosts.
• A.

2

• B.

6

• C.

30

• D.

14

• E.

126

• 10.
How many hosts are available with a CIDR of /26 on a class C network? Example: 192.168.1.1/26 Note: These are the # of usable hosts.
• A.

126

• B.

62

• C.

30

• D.

14

• E.

2

• 11.
How many hosts are available with a CIDR of /27 on a class C network? Example: 192.168.1.1/27 Note: These are the # of usable hosts.
• A.

32

• B.

30

• C.

64

• D.

62

• E.

128

• 12.
How many hosts are available with a CIDR of /28 on a class C network? Example: 192.168.1.1/28 Note: These are the # of usable hosts.
• A.

16

• B.

128

• C.

14

• D.

6

• E.

2

• 13.
How many hosts are available with a CIDR of /29 on a class C network? Example: 192.168.1.1/29 Note: These are the # of usable hosts.
• A.

128

• B.

126

• C.

8

• D.

6

• E.

14

• 14.
How many hosts are available with a CIDR of /30 on a class C network? Example: 192.168.1.1/30 Note: These are the # of usable hosts.
• A.

4

• B.

3

• C.

2

• D.

5

• E.

6

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