Which of the following statements is true?
a. When you drive a car, pressing its gas pedal sends a message to the car to perform a task—that is, to go faster.
b. You send messages to an object; each message is implemented as a method call that tells a method of the object to perform
its task.
c. A program might call a bank-account object’s deposit method to increase the account’s balance.
d. All of the above statements are true.
d. All of the above statements are true.
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A database server stops responding to requests, and the administrator suspects that the server is experiencing memory faults during heavy network traffic and database access. Which of the following is the FIRST troubleshooting step?
A. Check the security log. B. Check the application logs. C. Check the debug report. D. Check the POST error log.
The UNIX process scheduling algorithm picks the process that will run in the shortest amount of time to be run first.
Answer the following statement true (T) or false (F)