Inspect them and make sure that they are exact copies then delete one if they are the same.
a.The primary purpose of JavaScript is to enable features such as validation of forms before they are submitted to the server.
<u>Explanation:</u>
On web pages before submitting the day, end user has to do client validations such as whether data enter is correct data type, so end user for client side validation been eiher by VBSCRIPT (visual basic script language) or (JavaScript java script). Internet explorer or Microsoft edge uses VBSCRIPT for web page validation.
For visual basic script languages end user should have enough knowledge on visual basic programming languages. Same away for java script end user have enough knowledge on c language.
Both Scripts are used for client side validation on success of validation end user will submit web page form for next action. JavaScript is used in most of the browser including Microsoft explorer or Microsoft edge.
Answer:
a. 118.20.210.254
Explanation:
Here are the few characteristics of Class A:
First bit of the first octet of class A is 0.
This class has 8 bits for network and 24 bits for hosts.
The default sub-net mask for class A IP address is 255.0.0.0
Lets see if the first bit of first octet of 118.20.210.254 address is 0.
118 in binary (8 bits) can be represented as : 1110110
To complete 8 bits add a 0 to the left.
01110110
First bit of the first octet of class A is 0 So this is class A address.
For option b the first octet is : 183 in the form of bits = 10110111 So it is not class A address
For option c the first octet is 215 in the form of bits = 11010111 So it is not class A address
For option d the first octet is 255 in the form of bits = 11111111. The first bit of first octet is not 0 so it is also not class A address.
Answer:
Data is stored in tables, where each row is an item in a collection, and each column represents a particular attribute of the items. Well-designed relational databases conventionally follow third normal form (3NF), in which no data is duplicated in the system. ... With a homogenous data set, it is highly space efficient
