In Ruby variable scope is indicated by the first character in a variable's name. The character used to specify a global variable is?

A. $
B. @
C. @@
D. None of the above


Answer: A

Computer Science & Information Technology

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This stands for the mail exchange record, which points to the incoming email servers of the organization

What will be an ideal response?

Computer Science & Information Technology

Answer the following statements true (T) or false (F)

1) Access rights are managed at the physical organization layer. 2) Double buffering is when a process transfers data to (or from) one buffer while the operating system empties (or fills) the other. 3)RAID 0 provides real-time backups of all data so that in the event of a disk failure, all of the critical data is still immediately available. 4) The SCAN policy favors jobs whose requests are for tracks nearest to both innermost and outermost tracks, and favors the latest arriving jobs. 5) RAID is a set of physical disk drives viewed by the operating system as a single logical drive.

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A duplicate master slide appears in the ________ below the layouts associated with the original master side

Fill in the blank(s) with correct word

Computer Science & Information Technology

Case-Based Critical Thinking QuestionsCase 2-2You have built your first schedule but your supervisor wants you to make some changes to it, adding some padding in some places and tightening things up in other places. This requires you to familiarize yourself with the concepts of lead and lag time.In your schedule, you have a step for photo research and a second step for design layout. The two steps are in an FS relationship to one another, but your supervisor tells you that the layout can begin before all of the photo research is done. Which of the following will accomplish this?

A. adding a lead time of -50% B. removing a lead time of 50% C. adding a lead time of 50% D. adding a lag time of 50%

Computer Science & Information Technology