How do you perform a LOOP BACK test?

Question 1 / 27070NUrOc0noQWb2KaREBHfB

Question 1 of 27070NUrOc0noQWb2KaREBHfB

Question 1 of 27070

How do you perform a LOOP BACK test?

🔍 Key Concepts

• Loopback in communications and networking is used to test your own equipment, not the external network • In IP networking, there is a special reserved address used only to test the local device • Distinguish between testing your own terminal internally vs testing the path through a station or another terminal

💭 Think About

• Which option specifically checks only that your own terminal/processor/network stack is functioning, without depending on any external station or path? • Look for the choice that uses a built-in, standardized mechanism for testing the local device, rather than involving other equipment or operators. • Ask yourself: is this test verifying end-to-end communications with another party, or is it purely a self-test on my own system?

✅ Before You Answer

• Identify which option uses a special test address rather than a normal destination • Eliminate any choices that require another station or operator for the test to work • Confirm that the correct method would still work even if you were not connected to any external network

Question 1 of 27070

How do you perform a LOOP BACK test?

Initiate a Performance Verification Test through terminal software.

Initiate a test to IP address: 127.0.0.1.

Send yourself a test message.

Request the LES to send you a test message.

Question 1 / 27070NUrOc0noQWb2KaREBHfB

Question 1 of 27070NUrOc0noQWb2KaREBHfB

How do you perform a LOOP BACK test?

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Question 1 of 27070

How do you perform a LOOP BACK test?