Which of the following states the Rule of Entity Integrity?
a. Every row must have a value for the primary key and each value must be unique.
b. Every foreign key must appear as another table’s primary key.
c. Every row must have a value for the primary key and values may be repeated.
d. None of the above.
a. Every row must have a value for the primary key and each value must be unique.
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Printer speeds are measured in _____.
A. pages per hour B. characters per minute C. pages per minute D. lines per minute
Critical Thinking QuestionsCase 7-1Tim is working on an important presentation for the annual directors' dinner. He has a few pictures taken at last year's dinner that he would like to edit and then integrate into his accompanying slide show, but he has no experience editing pictures.
Tim asks you how to remove the background from one of the pictures he inserted on a slide. You tell Tim to ____. a. send the picture out to a professional to remove the background and then reinsert the picture; it is too difficult to do in PowerPointc. select the picture, click the Keep Foreground button (PICTURE TOOLS FORMAT tab | Adjust group), drag handles on foreground retention lines to position the part of the picture to be retained within the marquee, click the Keep All Changes button (FOREGROUND tab | Refine group) to keep the wanted picture foregroundb. select the picture, click the Remove Background button (PICTURE TOOLS FORMAT tab | Adjust group), drag handles on background removal lines to position the part of the picture to be retained within the marquee, tap or click the Keep Changes button (BACKGROUND REMOVAL tab | Close group) to discard the unwanted picture backgroundd. select the picture, click the Adjust Background button (PICTURE TOOLS FORMAT tab | Adjust group), drag handles on background removal lines to position the part of the picture to be removed within the marquee, tap or click the Discard All Changes button (BACKGROUND EDITING tab | Close group) to discard the unwanted picture background What will be an ideal response?
Tripwire is an example of a ____ system.
A. Linux B. AIX C. intrusion detection and prevention D. operating
Which of the following port numbers is used for SNMP?
A. 61 B. 151 C. 161 D. 1611