________ variables are fields within a data set that can be used to categorize or group for comparison
A) Aggregate
B) Category
C) Grouping
D) Summary
Answer: C
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You have been reassigned from the user interface team to the database team due to staff shortages and replanning. The implementation phase is well underway. In which role would you be most proficient given your knowledge of the user interface design and implementation?
What will be an ideal response?
As shown in the accompanying figure, what is the term for a network that covers a large geographic area, such as a city, country, or the world, using a variety of wired and wireless transmission media?
A. local area network (LAN) B. metropolitan area network (MAN) C. wide area network (WAN) D. variable area network (VAN)
What software programs do system developers use to help design and construct information systems?
A. CAD tools B. CASE tools C. SPSS tools D. SAS tools
You have a video transcoding application running on Amazon EC2. Each instance polls a queue to find out which video should be transcoded, and then runs a transcoding process. If this process is interrupted, the video will be transcoded by another instance based on the queuing system. You have a large backlog of videos which need to be transcoded and would like to reduce this backlog by adding more instances. You will need these instances only until the backlog is reduced. Which type of Amazon EC2 instances should you use to reduce the backlog in the most cost efficient way?
A. Reserved instances B. Spot instances C. Dedicated instances D. On-demand instances