Jack, a network technician, needs to subnet a class C network into as many subnets as possible, with at least 22 usable hosts per subnet. What subnet mask should he use?

  • 255.255.255.240
  • 255.255.255.128
  • 255.255.255.252
  • 255.255.255.224

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Network Architecture
Network operations
Network security
Troubleshooting
Industry standards, practices, and network theory
CompTIA Network+ N10-006
  • Network Architecture
  • Network operations
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  • Network security
  • Troubleshooting
  • Industry standards, practices, and network theory