Which type of security measure reduces the likelihood of a deliberate attack?

A technician finds that the network card is no longer functioning. At which of the following OSI layers is the problem occurring?

A. Layer 1 B. Layer 3 C. Layer 5 D. Layer 7

Suppose that the coordinator of a transaction crashes after it has recorded the intentions list entry but before it has recorded the participant list or sent out the canCommit? requests. Describe how the participants resolve the situation. What will the coordinator do when it recovers? Would it be any better to record the participant list before the intentions list entry?

What will be an ideal response?