CCNA: Cisco Certified Network Associate — Question 439

The address block 192.168.32.0/24 must be subnetted into smaller networks. The engineer must meet these requirements:
✑ Create 8 new subnets.
✑ Each subnet must accommodate 30 hosts.
✑ Interface VLAN 10 must use the last usable IP in the first new subnet.
✑ A Layer 3 interface is used.
Which configuration must be applied to the interface?

Answer options

• A. no switchport mode trunk ip address 192.168.32.97 255.255.255.224
• B. switchport ip address 192.168.32.65 255.255.255.240
• C. no switchport ip address 192.168.32.30 255.255.255.224
• D. no switchport mode access ip address 192.168.32.62 255.255.255.240

Correct answer: C

Explanation

The correct answer is C because it assigns the last usable IP address in the first subnet (192.168.32.30) with the appropriate subnet mask (255.255.255.224) for accommodating the required hosts. Options A, B, and D are incorrect as they either use the wrong subnet mask or assign IPs that do not meet the specified criteria for subnets and hosts.