What is the technique in which a process can do nothing until it gets permission to enter its critical section but continues to execute an instruction or set of instructions that test the appropriate variable to gain entrance? a. spin waiting b. general semaphore c. critical resource d. message passing

Quincy would like to view the contents of a specific message in his inbox. a portion of his computer screen is shown. what should quincy do in order to complete this task? 1. click on the inbox in the navigation pane, and click on the specific message in the folder pane to display its contents. 2. click on the inbox in the outlook today window, and click on the specific message in the folder pane to display its contents. 3. double-click the message’s header in the outlook today window, and right-click on the specific message to display its contents. 4. double-click the mail option in the navigation pane, and right-click on the specific message to display its contents.

Which of these options are the correct sequence of actions for content to be copied and pasted? select content, click the copy button, click the paste button, and move the insertion point to where the content needs to be inserted. click the copy button, select the content, move the insertion point to where the content needs to be inserted, and click the paste button. select the content, click the copy button, move the insertion point to where the content needs to be inserted, and click the paste button. select the content, move the insertion point to where the content needs to be inserted, click the copy button, and click the paste button.

What is a scenario where records stored in a computer frequently need to be checked