What is the tightest (shortest) mask you can put onto any Class A network and leave yourself a minimum of 250 valid subnets with which to work?

Options are :

- 255.0.0.0
- 255.255.192.0
- 255.255.252.0
- 255.192.0.0
- 255.255.255.0
- 255.255.0.0

**Answer :**255.255.0.0

Certification : CCNA Cyber Ops - SECOPS # 210-255

How many valid host IP addresses exist on each subnet when 132.14.0.0 is subnetted with a /22 mask?

Options are :

- 2048
- 1024
- 1022
- 2046
- 510
- 512

**Answer :**1022

You've just subnetted the 147.33.0.0 network with a /19 mask. How many valid subnets do you have to work with?

Options are :

- 6
- 16
- 126
- 14
- 128
- 8

**Answer :**8

What is the broadcast address for the 211.24.32.0 255.255.255.192 subnet?

Options are :

- 211.24.32.127 /28
- 211.24.32.31 /28
- 211.24.32.64 /26
- 211.24.32.63 /26
- 211.24.32.254 /27
- 211.24.32.255 /27

**Answer :**211.24.32.63 /26

Which of these subnets contains the IP address 172.18.49.200 / 27?

Options are :

- 172.18.49.0 255.255.255.240
- 172.18.49.192 255.255.255.224
- 172.18.49.128 255.255.255.240
- 172.18.49.192 255.255.255.240
- 172.18.49.0 255.255.255.224
- 172.18.49.128 255.255.255.224

**Answer :**172.18.49.192 255.255.255.224

Which three of these addresses can be found on the 144.13.26.0 /27 subnet?

Options are :

- 144.13.26.14
- 144.13.26.2
- 144.13.26.31
- 144.13.26.32
- 144.13.26.30
- 144.13.62.1

**Answer :**144.13.26.14
144.13.26.2
144.13.26.30

What is the minimum number of host bits necessary when the subnets on your network must contain at least 128 hosts?

Options are :

- 10
- 7
- 8
- 9
- 6
- 5

**Answer :**8

Certification : CCNA Cyber Ops - SECOPS # 210-255

When applied to a Class C network, the subnet mask 255.255.255.224 results in how many valid IP addresses per subnet?

Options are :

- 30
- 32
- 128
- 64
- 126
- 62

**Answer :**30

What is the broadcast address for the subnet 17.200.14.0 /25?

Options are :

- 17.200.255.255 /25
- 17.200.14.255 /25
- 17.200.14.63 /25
- 17.200.14.127 /25
- 17.200.14.1 /25
- 17.200.14.128 /25

**Answer :**17.200.14.127 /25

Your boss just subnetted the 148.4.0.0 network with a 255.255.255.128 mask. He then asks you to check his math. How many valid host addresses will you have on each subnet?

Options are :

- 256
- 126
- 128
- 64
- None of these choices is the correct answer.
- 62
- 254

**Answer :**126

Practice : CCNA Cyber Ops - SECOPS # 210-255

What is the tightest (shortest) mask you can put on the 130.17.0.0 network while allowing yourself 60 valid subnets?

Options are :

- 255.255.255.252
- 255.255.128.0
- 255.255.0.0
- 255.255.252.0
- 255.255.192.0
- 255.252.0.0

**Answer :**255.255.252.0

Given the 17.0.0.0 /14 network, how many valid subnets do we have to work with?

Options are :

- 62
- 64
- 96
- 128
- 126
- 94

**Answer :**64

Your boss plans on subnetting the 222.1.1.0 network with a /28 mask. She asks your opinion. What should you tell her?

Options are :

- It's a solid plan that will leave you with the same number of valid subnets and valid host addresses on each of those subnets.
- It's an illegal plan, since you can't subnet that particular subnet with a /28 mask.
- It's a terrific plan as long as you're happy with 32 valid subnets and 14 valid host addresses on each of those subnets.
- It's a good plan that will leave you with 16 valid subnets and 14 valid host addresses on each subnet.

**Answer :**It's a good plan that will leave you with 16 valid subnets and 14 valid host addresses on each subnet.

Certification : CCNA Cyber Ops - SECOPS # 210-255

Upon which of these subnets will you find the IP address 222.22.2.2 /22?

Options are :

- 222.22.0.0 /16
- 222.0.0.0 /22
- 222.22.0.0 /24
- 222.22.0.0 /22
- 222.22.2.0 /22

**Answer :**222.22.0.0 /22

Upon what subnet will you find the IP address 24.7.32.89 / 14?

Options are :

- 24.2.0.0 /14
- 24.7.32.0 /14
- 24.4.0.0 /14
- 24.6.0.0 /14
- 24.0.0.0 /14

**Answer :**24.4.0.0 /14

Convert the decimal 148 to a binary string.

Options are :

- 10001110
- 10010100
- 10011000
- 01111110
- 10011100
- 01111111

**Answer :**10010100

Certification : CCNA Cyber Ops - SECOPS # 210-255

You've been given the 11.0.0.0 network with a /12 mask. How many valid subnets do you have to work with?

Options are :

- 6
- 14
- 62
- 32
- 8
- 30
- 64
- 16

**Answer :**16

You're about to subnet the 221.13.7.0 network with a /28 mask. Doing that will leave you with how many valid subnets to work with?

Options are :

- 128
- 16
- 6
- 14
- 32
- 8
- 126
- 30

**Answer :**16

What is the decimal equivalent of the binary string 00001110?

Options are :

- 24
- 15
- 17
- 25
- 9
- 14

**Answer :**14

Certification : CCNA Cyber Ops - SECOPS # 210-255

Given the following network and mask, how many valid IP addresses reside on each subnet?

39.0.0.0 /26

Options are :

- 4
- 32
- 128
- 62
- This is an illegal subnet mask for this network.
- 2
- 126
- 30
- 64

**Answer :**62

The major network number 14.0.0.0 has been subnetted with a 255.255.252.0 mask. How many valid IP addresses can you hand out on each subnet?

Options are :

- 4
- 512
- 1024
- 1022
- 2048
- 510
- 2
- 2046

**Answer :**1022

The 15.5.0.0 network has been subnetted with a /27 mask. How many valid host addresses reside on each subnet?

Options are :

- 32
- 128
- 4094
- 16
- 30
- 4096
- 126
- 14

**Answer :**30

Certification : CCNA Cyber Ops - SECOPS # 210-255

A senior admin at your network has subnetted the 178.14.0.0 network with a /21 mask and has naturally handed it over to you at this point. How many subnets does this leave you to work with?

Options are :

- 128
- 62
- 16
- 126
- 14
- 64
- 30
- 32

**Answer :**32

The decimal 237 is represented by which of the following binary strings?

Options are :

- 11111000
- 11101101
- 11100010
- 11100111
- 11101111
- 11110011

**Answer :**11101101

Which of these subnets contains the IP address 163.14.89.213 /19?

Options are :

- 163.14.16.0 /19
- 163.14.48.0 /19
- 163.14.8.0 /19
- 163.14.64.0 /19
- 163.14.80.0 /19
- 163.14.32.0 /19

**Answer :**163.14.64.0 /19

Practice : CCNA Cyber Ops - SECOPS # 210-255

Of the following three addresses, which are found on a common subnet? The subnet mask for each address is 255.255.240.0.

Host A: 10.1.17.14

Host B: 10.1.18.12

Host C: 10.1.22.142

Options are :

- They're all on the same subnet.
- Host A and Host B are on a common subnet, but Host C does not share that subnet.
- Host C and Host A are on a common subnet, but Host B does not share that subnet.
- Host B and Host C are on a common subnet, but Host A does not share that subnet.
- None of these hosts share a subnet with another named host.

**Answer :**They're all on the same subnet.

Given the network 39.0.0.0 and a subnet mask of 255.255.192.0, how many valid subnets will you have to work with?

Options are :

- 1022
- 0
- 1024
- 2048
- 2
- This is an illegal mask for this network.
- 4
- 2046

**Answer :**1024

How many valid host IP addresses exist on the 179.12.0.0 255.255.255.240 subnet?

Options are :

- 62
- 16
- 64
- 6
- 30
- 32
- 14
- 8

**Answer :**14

Mock : CCNA Cyber Ops - SECOPS # 210-255

What binary string correctly represents the decimal 77?

Options are :

- 01000110
- 01001110
- 01001111
- 01001101
- 01110001
- 01100000

**Answer :**01001101

Convert the binary string 00110110 to a decimal.

Options are :

- 54
- 39
- 48
- 49
- 38
- 50

**Answer :**54

The 200.1.3.0 network has been subnetted with a 255.255.255.252 mask. How many valid addresses exist on each subnet?

Options are :

- 128
- 0
- 4
- 254
- 126
- 2
- 256

**Answer :**2

Practice : CCNA Cyber Ops - SECOPS # 210-255

The three host addresses shown here are all in the default VLAN and each has a mask of 255.224.0.0. Assuming no physical issues exist, which of these statements are true?

Host A: 10.66.1.1

Host B: 10.77.1.1

Host C: 10.88.1.1

Host D: 10.99.1.1

Options are :

- Any of these hosts can ping the other, as they are all on the same subnet.
- Hosts A and B will be able to ping each other, but any ping involving Host C or Host D will fail.
- Hosts C and D can ping each other, but any ping involving Host A or Host B will fail.
- Hosts B, C, and D will be able to ping each other, but pings involving Host A as a source or destination will fail.
- Hosts A, B, and C will be able to ping each other, but pings involving Host D as a source or destination will fail.
- As these four hosts are each on a different subnet, all pings will fail.

**Answer :**Hosts A, B, and C will be able to ping each other, but pings involving Host D as a source or destination will fail.

Convert the binary string 11110001 to a decimal.

Options are :

- 87
- 242
- 239
- 241
- 99
- 243
- 212

**Answer :**241

Of these four addresses, which two share a common subnet? Each address has a subnet mask of 255.255.255.240.

Host A: 200.1.1.126

Host B: 200.1.1.148

Host C: 200.1.1.155

Host D: 200.1.1.160

Options are :

- Hosts A and B
- Hosts A and C
- These four hosts are found on four separate subnets.
- Hosts B and C
- All four hosts are on the same subnet.
- Hosts C and D
- Hosts B and D

**Answer :**Hosts B and C

Mock : CCNA Cyber Ops - SECFND # 210-250

What is the decimal equivalent of the binary string 01010101?

Options are :

- 79
- 127
- 111
- 66
- 85
- 89
- 99

**Answer :**85

What subnet contains the IP address 214.38.242.123 /27?

Options are :

- 214.38.242.32.0 /27
- 214.38.242.0 /24
- 214.38.242.122 /27
- 214.38.242.64.0 /27
- 214.38.242.120 /27
- 214.38.242.96 /27

**Answer :**214.38.242.96 /27

Which of these binary strings represents the decimal 138?

Options are :

- 10000111
- 10001111
- 10001011
- 10001110
- 10000101
- 10001010

**Answer :**10001010

Mock : CCNA Cyber Ops - SECOPS # 210-255

Which of these binary strings accurately represents the decimal 199?

Options are :

- 11001111
- 11000011
- 11000001
- 11000111
- 11011111

**Answer :**11000111

Given the following network and mask, how many valid addresses will be available on each subnet?

142.14.0.0 /25

Options are :

- 126
- 256
- 254
- 128
- 4
- 2
- 6
- 8

**Answer :**126

Upon which of the following subnets will the 11.9.248.7 /14 address be found?

Options are :

- 11.8.0.0 /14
- 11.9.128.0 /14
- 11.9.0.0 /14
- 11.0.0.0 /14
- 11.1.0.0 /14

**Answer :**11.8.0.0 /14

Which of the following three addresses are found on the same subnet?&nbss="card-header"> **Point our Mistakes and Post Your Suggestions**

- Test : CCNA Cyber Ops - SECOPS # 210-255
- QA : CCNA Cyber Ops - SECOPS # 210-255
- QA : CCNA Cyber Ops - SECOPS # 210-255
- Certification : CCNA Cyber Ops - SECOPS # 210-255
- QA : CCNA Cyber Ops - SECOPS # 210-255
- Certification : CCNA Cyber Ops - SECOPS # 210-255
- Mock Exam : CCNA Cyber Ops - SECFND # 210-250
- Test : CCNA Cyber Ops - SECOPS # 210-255
- Certification : CCNA Cyber Ops - SECFND # 210-250
- Test : CCNA Cyber Ops - SECOPS # 210-255
- Mock : CCNA Cyber Ops - SECOPS # 210-255