AZ-801 · Question #56
Your on-premises network contains two subnets. The subnets contain servers that run Windows Server as shown in the following table. Name IP address Server1 192.168.1.10 Server2 192.168.0.250 Server3 1
The correct answer is C. subnet mask. Since Server4 (192.168.0.10) can ping Server2 (192.168.0.250) but not Server3 (192.168.0.240), and Server2 can ping Server3, a misconfigured subnet mask on Server3 is the most likely cause of the 'Request timed out' response.
Question
Options
- Adefault gateway
- BIP address
- Csubnet mask
- DDNS server
How the community answered
(24 responses)- A8% (2)
- B13% (3)
- C75% (18)
- D4% (1)
Why each option
Since Server4 (192.168.0.10) can ping Server2 (192.168.0.250) but not Server3 (192.168.0.240), and Server2 can ping Server3, a misconfigured subnet mask on Server3 is the most likely cause of the 'Request timed out' response.
If the default gateway on Server3 were misconfigured, it would primarily affect communication to other subnets, but Server4 is on the same subnet as Server3, and Server2 can ping Server3, implying local responses are possible.
If the IP address on Server3 were incorrect (e.g., duplicated or outside the expected range), Server2 might not be able to ping it successfully, contradicting the problem statement.
Server4 (192.168.0.10/24) and Server2 (192.168.0.250) are on the same subnet (192.168.0.0/24) as Server3 (192.168.0.240). If Server3 has an incorrect subnet mask, it might perceive Server4 as being on a different subnet, even though Server4 is locally connected. This would cause Server3 to attempt to route packets to Server4 via its default gateway instead of directly communicating, leading to a timeout if Server4 is expecting direct communication within the local subnet, resulting in Server3's inability to reply directly to Server4.
DNS server configuration affects name resolution, not direct IP-address-based ping connectivity; pinging by IP address bypasses DNS.
Concept tested: TCP/IP subnetting and connectivity issues
Source: https://learn.microsoft.com/en-us/troubleshoot/windows-server/networking/ip-address-subnet-mask-default-gateway
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