Answer:
The answer to this question is Control(ctrl).
Explanation:
We use control(ctrl) key when we need to select multiple entities.
So when we want to select more than one sketched entity we need to press and hold the control key on the keyboard when we are selecting the items.
Hence we conclude that the answer to this question is Control(ctrl).
Answer:
<u>Scalable database</u>
Explanation:
Good examples of a scalable database include; NoSQL database, MySQL, Microsoft SQL.
<em>Remember</em>, these databases are called scalable databases because they support memory expansion without a measurable performance decrease.
For example, if the management of a hotel notices that its 1 terabyte computer used to store its security videos is no longer adequate to meet the hotel's expansion, then decide to buy a newer server that can be integrated into the current system. We can say they just applied the concept of scalable databases.
Answer:
In other words, the CSS rules can "cascade" in their order of precedence. Where the rules are located is one factor in the order of precedence. The location order of precedence is: browser default rules, external style sheet rules, embedded styles, and inline style rules.
Corrected or Complet Question
The ____ operator executes one of two expressions based on the results of a conditional expression.
a. .
b. ( )
c. ,
d. ?:
Answer:
(d) ? :
Explanation:
The ternary operator (? :) is an operator that executes one out of two expressions based on the results of a conditional expression. It is a faster or shorthand way of writing an if ... else statement. The operator checks the conditional expression and depending on whether it is true or false, one of its two statements will be executed. For example:
String correct = (4 < 5) ? "yes" : "no" ;
In the code above,
i. the conditional statement is (4 < 5) and this will be tested for to return true or false.
ii. the first expression (the one after the ?) is "yes" which will be executed if the conditional statement returns true.
iii. and the second expression (the one after the : ) is "no" which will be executed if the conditional statement returns false.
Therefore, since the conditional expression returns true for 4 < 5, the first expression will be executed. i.e "yes". This means that the String variable <em>correct </em> will have a value of "yes".
