Uh, I think you mean antonym.
Anyways, here are some antonyms.
Careless, Certain, Foolish, Inattentive, Incautious
Answer:
A top-level domain or the TLD is the domain at the highest level in the hierarchy of the DNS. And that means in the Internet DNS. Also, the top-level domain is installed in the namespace toot zone. And the top-level domain is the .com, in general, to be named as the best one. The next two are the .net and .org. But since it is required to optimize the website for the mobile devices, we should select here .com.
Explanation:
Please check the answer section.
When we focus on stereotypes we may <span>unconsciously look for information to support our generalizations .</span>
Answer:
(A) A web page will not display in a browser unless it passes syntax validation testing.
(C)A web page must pass syntax validation testing before it is used.
Explanation:
A website is a collection of related web pages. A web page is an electronically arranged content page, designed and developed using web development application and language tool and hosted on a web server.
Web page or application development follows a series of well defined stages called software development life cycle (SDLC). The web application must go through these processes from birth to the end-of-life of the application.
The validation testing in SDLC, consisting of unit, acceptance and loading testing, which checks for syntax error or bugs on the written codes, because bugs could slow the loading of the page or even the display and browser compatibility of elements in the code.
Answer:

Explanation:
Given
Power at point A = 100W
Power at point B = 90W
Required
Determine the attenuation in decibels
Attenuation is calculated using the following formula

Where
t and
t


Substitute these values in the given formula




<em>(Approximated)</em>