Which of the following statements are true?
1.Hypertext links in the WWW are designed to be unidirectional, so the destination of a link may be moved or deleted without the source being notified, resulting in broken links
2.The Google search engine algorithm is secret, so the general public does not know how the results of a search are ranked when presented to a user
3.Web search engines collect personal data and use that data to target users with customized advertising
A1 & 2 only
B1 & 3 only
C2 & 3 only
D1, 2 & 3 ✓ Correct
Correct answer: (D) 1, 2 & 3
Explanation
All three statements are correct about the web and search engines.
Statement 1 is correct because WWW hypertext links are unidirectional, so a moved or removed target leaves a broken link with no notice to the source.
Statement 2 is correct because Google keeps its ranking algorithm secret from the public.
Statement 3 is correct because search engines collect personal data to serve customised advertising.
One-way links mean the source page is never told when its target disappears.
Targeted advertising is a major revenue source that funds free search services.
Want more like this? Create a free account to practise a full test, track your progress, and get spaced-repetition review.
Practise on Mcqkart →🎓 Book an expert →