Once pixels have been selected, which of the following would be used to change their colors?
A. Hue/Saturation dialog box
B. Color Swatches
C. Color Options dialog box
D. Colors list menu
Answer: A
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A(n) _____________ is a part of a tree that is a tree itself.
A. supertree B. subtree C. heap D. trunk
The ER diagram in Figure 17.13 shows only entities and primary key attributes. The absence of recognisable named entities or relationships is to emphasize the rule-based nature of the mapping rules described in Step 2.1 of logical database design.
Answer the following questions with reference to how the ER model in Figure 17.13 maps to relational tables.
(a) How many relations will represent the ER model?
(b) How many foreign primary keys are mapped to the relation representing X?
(c) Which relation(s) will have no foreign key?
(d) Using only the letter identifier for each entity, provide appropriate names for the
relations mapped from the ER model.
(e) If the cardinality for each relationship is changed to one-to-one with total participation
for all entities; how many relations would be derived from this version of the ER model?
According to Lewin and Schein's 3-stage model of organizational change, which of the following tasks would be found in the 'unfreezing' stage?
A. Monitor progress against success criteria B. Establish controls to ensure change is occurring C. Establish processes and systems to institutionalize change D. Assign leaders and implementation team?
After installing a new video card, the text is so large that some parts of the browser cannot be seen. What is the most likely problem?
A) The resolution is set too low. B) The card is incompatible with the operating system installed on the system. C) The cable needs to be upgraded. D) The integrated video port needs to be disabled.