MCSA/MCSE Self-Paced Training Kit (Exam 70-270): Installing ...

26-12 Chapter 26 Implementing, Managing, and Troubleshooting Network Protocols and Services
5. Correct Answers: C
A. Incorrect: In this scenario, the computer and both of the router’s network interfaces
have been configured with class A addresses. However, class A addresses
can have a subnet mask of 255.255.255.0. In fact, a subnet mask of 255.0.0.0
would be extremely unusual.
B. Incorrect: The computer’s default gateway should be set to the IP address of the
router’s local network adapter. In other words, the default gateway must be set to
the IP address that the router has been assigned on the local network. In this case,
the default gateway is correct.
C. Correct: The problem is that the computer’s IP address and the router’s local IP
address are on different logical subnets. The computer has been configured with
an IP address of 10.1.2.2, but the default gateway is 10.1.3.1. Because the default
gateway is on a different logical subnet, the computer cannot send packets to it—
even though it is on the same physical network segment. Assigning the computer
an IP address of 10.1.3.2 places it on the same logical subnet as the router’s
10.1.3.1 address, allowing it to send packets to the router.
D. Incorrect: Each network interface must have a unique IP address. Therefore, you
cannot configure two network adapters to have the same IP address.