Options: Â A compiler does a conversion line by line as the program is run
B. Â A compiler converts the whole of a higher level program code into machine code in one step
C. Â A compiler is a general purpose language providing very efficient execution
D. Â None of the above
The total capacitive reactance of a parallel capacitor circuit is:
Options: equal to the sum of the individual capacitive-reactance values, equal to the sum of the individual capacitance values, equal to the source voltage divided by total current, less than the capacitance value of the smallest capacitor
A rule of thumb for choosing indexes for a relational database includes which of the following?
Options: Indexes are more useful on smaller tables., Indexes are more useful for columns that do not appear frequently in the WHERE clause in queries., Do not specify a unique index for the primary key of each table., Be careful indexing attributes that have null values.
. ASCII and EBCDIC are the popular character coding systems. What does ASCII stand for?
Options: A) American Stable Code for International Interchange
B) American Standard Case for Institutional Interchange
C) American Standard Code for Information Interchange
D) American Standard Code for Interchange Information
Options: the central processing unit of the computer only., the central processing unit of the computer and input/output units only, the central processing unit of the computer, input/output units, and data storage units only, All of the above
. One way to make a PowerPoint slide display animations is to:
Options: a. Select the slide in normal view; and click Format, Animation b. Click the PowerPoint window and move it around vigorously with the mouse for a manual animation effect c. Select the slide in slide sorter view, right click and choose preset animations from the shortcut menu d. PowerPoint does not have an animation feature
Why is the width of the data bus so important to the processing speed of a computer?
Options: The narrower it is, the greater the computer's processing speed, The wider it is, the more data that can fit into main memory, The wider it is, the greater the computer's processing speed, The wider it is, the slower the computer's processing speed
. Which of the following statements does NOT hold true for the Top Values property?
Options: a. The Top Values property displays only the highest values from the query.
b. The Top Values property requires the fields to have a defined sort order.
c. The Top Values property finds a specified number of records.
d. The Top Values property finds a specified percentage of records.