N10-009 · Question #27
N10-009 Question #27: Real Exam Question with Answer & Explanation
The correct answer is B: The router interface is a broadcast address.. Understanding Subnetting: The subnet mask 255.255.255.240 (or /28) indicates that each subnet has 16 IP addresses (14 usable addresses, 1 network address, and 1 broadcast address). Calculating the Subnet Range: Subnet Calculation: For the IP address 10.0.0.95 with a /28 subnet ma
Question
A network administrator configured a router interface as 10.0.0.95 255.255.255.240. The administrator discovers that the router is not routing packets to a web server with IP 10.0.0.81/28. Which of the following is the best explanation?
Options
- AThe web server Is In a different subnet.
- BThe router interface is a broadcast address.
- CThe IP address space is a class A network.
- DThe subnet is in a private address space.
Explanation
Understanding Subnetting: The subnet mask 255.255.255.240 (or /28) indicates that each subnet has 16 IP addresses (14 usable addresses, 1 network address, and 1 broadcast address). Calculating the Subnet Range: Subnet Calculation: For the IP address 10.0.0.95 with a /28 subnet mask: Network address: 10.0.0.80 Usable IP range: 10.0.0.81 to 10.0.0.94 Broadcast address: 10.0.0.95 Router Interface Configuration: Broadcast Address Issue: The IP address 10.0.0.95 is the broadcast address for the subnet 10.0.0.80/28. Configuring a router interface with the broadcast address will cause routing issues as it is not a valid host address.
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