Huawei Certified Network Associate – Routing and Switching (HCNA-RS, legacy) — Question 2

Which of the following statements regarding the verification of IP connectivity are false? (Choose three)

Answer options

• A. The ping 127.0.0.1 command can be used to check whether the network cable is correctly inserted into the host's Ethernet port.
• B. The ping command with the host IP address as the destination can be used to verify that the TCP/IP protocol suite is functioning correctly.
• C. The ping command can be used to verify connectivity between the host and the local gateway.
• D. The command "ipconfig /release" can be used to check connectivity problems between the host and the local gateway.

Correct answer: A, B, D

Explanation

Option A is incorrect because pinging 127.0.0.1 tests the loopback interface, not the physical connection of the network cable. Option B is also wrong because while pinging the host's IP checks if the TCP/IP stack is operational, it doesn't specifically verify connectivity with external devices. Option D is incorrect as well; ipconfig /release is used to release the IP address and does not check connectivity with the local gateway.