CNX-001 · Question #21
A company's IT department is expected to grow from 100 to 200 employees, and the sales department is expected to grow from 1,000 to a maximum of 2,000 employees. Each employee owns a single laptop wit
The correct answer is C. Allocate 10.1.0.0/22 to the IT department. Allocate 10.2.0.0/15 to the sales department.. The subnets must accommodate the maximum expected host count with room for growth. For IT (max 200 hosts): a /22 provides 2^10 = 1,024 addresses (1,022 usable), which comfortably fits 200 devices. For Sales (max 2,000 hosts): a /21 would give 2,046 usable hosts (tight), while a /
Question
A company's IT department is expected to grow from 100 to 200 employees, and the sales department is expected to grow from 1,000 to a maximum of 2,000 employees. Each employee owns a single laptop with a single IP allocated. The network architect wants to deploy network segmentation using the IP range 10.0.0.0/8. Which of the following is the best solution?
Options
- AAllocate 10.1.0.0/30 to the IT department. Allocate 10.2.0.0/16 to the sales department.
- BAllocate 10.1.0.0/16 to the IT department. Allocate 10.2.1.0/24 to the sales department.
- CAllocate 10.1.0.0/22 to the IT department. Allocate 10.2.0.0/15 to the sales department.
- DAllocate 10.1.0.0/16 to the IT department. Allocate 10.2.1.0/25 to the sales department.
How the community answered
(46 responses)- A4% (2)
- B7% (3)
- C74% (34)
- D15% (7)
Explanation
The subnets must accommodate the maximum expected host count with room for growth. For IT (max 200 hosts): a /22 provides 2^10 = 1,024 addresses (1,022 usable), which comfortably fits 200 devices. For Sales (max 2,000 hosts): a /21 would give 2,046 usable hosts (tight), while a /15 gives 2^17 = 131,072 addresses - sufficient, though generous. Reviewing the other options: A uses a /30 for IT (only 2 usable hosts - completely inadequate). B uses a /24 for sales (254 usable - insufficient for 2,000). D uses a /25 for sales (126 usable - far too small for 2,000). Only option C provides enough capacity for both departments at their maximum projected sizes.
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