Users in several departments are reporting connectivity problems. The technician examines the
computer and finds the following settings. The IP address is 10.0.1.0 with a subnet mask of
255.255.252.0. The default gateway is 10.0.1.1 and the DNS server is 10.0.0.15. A user can
connect to the internet but not servers on other internal subnets. The technician is not able to
connect with a server with an IP of 10.0.2.25. Which of the following is MOST likely the problem?

A.
Default gateway

B.
Duplicate IP address

C.
Wrong DNS

D.
Subnet mask