The MA5600 main control board (SCU) restarts repeatedly. What are the reasons why it is impossible?

Question

Options

• AMain control board host software problem
• BIncorrect data configuration
• CUser ring network problem
• DThe main control board component is damaged

• A
  4% (2)
• B
  71% (40)
• C
  18% (10)
• D
  7% (4)

Explanation

Incorrect data configuration (B) is the impossible cause because configuration errors affect service delivery and parameter settings - they do not trigger repeated hardware resets of the control board itself. The SCU will load its configuration and may produce errors or fail to bring up services, but it will not enter a restart loop solely due to bad data.

By contrast, A (host software problem) is a genuine cause - software exceptions or memory leaks in the SCU firmware can crash the process and force a reboot cycle. D (damaged component) is also a real cause - faulty hardware such as a bad memory chip or power regulator will cause the board to fail and restart continuously. C (user ring network problem) can also be a culprit, because a loop or broadcast storm on the downstream network can flood the SCU with traffic, overwhelming it and triggering repeated resets.

Memory tip: Think of it this way - data sits passively in configuration files and doesn't "push" the board; it takes an active failure (software crash, hardware fault, or network flood) to actually restart the SCU. If a distractor is about passive settings rather than an active force, it's the impossible one.

No community discussion yet for this question.