Answer:
A) Parentheses
Explanation:
Conditional statements control behavior in JavaScript and determine whether or not pieces of code can run.
There are multiple different types of conditionals in JavaScript including:
If” statements: where if a condition is true it is used to specify execution for a block of code.
“Else” statements: where if the same condition is false it specifies the execution for a block of code.
“Else if” statements: this specifies a new test if the first condition is false.
Now that you have the basic JavaScript conditional statement definitions, let’s show you examples of each.
If Statement Example
As the most common type of conditional, the if statement only runs if the condition enclosed in parentheses () is truthy.
EXAMPLE
if (10 > 5) {
var outcome = "if block";
}
outcome;
OUTPUT
"if block"
Here’s what’s happening in the example above:
The keyword if tells JavaScript to start the conditional statement.
(10 > 5) is the condition to test, which in this case is true — 10 is greater than 5.
The part contained inside curly braces {} is the block of code to run.
Because the condition passes, the variable outcome is assigned the value "if block".
Network topology is the arrangement of the elements of a communication network. Network topology can be used to define or describe the arrangement of various types of telecommunication networks, including command and control radio networks, industrial fieldbusses and computer networks.
Advantages:
It is easy to handle and implement.
It is best suited for small networks.
Disadvantages:
The cable length is limited. This limits the number of stations that can be connected.
This network topology can perform well only for a limited number of nodes.
Answer:
C. Mean
Explanation:
Mean = (∑
)/N
Median = central values when data is sorted
Mode = most repeated value
Standard deviation = 
In standard deviation, formula you may see that deviation is being calculated from the mean (central location). But here we take square of the value before adding all of them.
But if we just take 
, it would be equal to zero.
<u>EXAMPLE</u>
Take 4, 9, 5 as data
mean = (4+9+5)/3 = 18/3 = 6
sum of deviations from mean = (4-6)+(9-6)+(5-6) = (-2)+(3)+(-1) = 0
Answer:
a. Partly True
b. True
Explanation:
(a) "new" keyword or syntax is used for the constructors while working in Perl and Moose object system for Perl.
For Visual Basics .Net, keyword "New" is used
For Python, "___new___" is used which allocates memory for instance and receives class as an argument.
For Objective-C, "alloc" and "init" are used for constructor method. "alloc" allocates memory for the instance and "init" handles the bulk of initializing the instance. Whereas, the "new" keyword calls both "alloc" and "init" for class instance.
(b) A constructor does not return any value because it is called by the memory allocation and object initialization code in the runtime and not directly by your code.
