Hey it is 15 hope this helps
Answer:
The answer to this question is given below in the explanation section.
Explanation:
You can submit your course work most often in a Word document. Because in the word document, you can insert text, numbers, images, charts whatever you want such as required for writing a book- easily.
The correct options to this question, that you should need to avoid using to create and submit course work are pages, numbers, and keynote.
Because while submitting the course work, you need to submit a complete word document, it is not required to you that you have to submit numbers, pages, or keynotes along with the course assignment. You can create a course assignment or project document in word and submit to your respective teacher. However, you can not create your course work using keynotes or pages, etc as given in the question.
Answer:
The correct answer to the following question is Drive-by hacking
.
Explanation:
Drive-by hacking is the type of hacking which comes under the cyberterrorism.
Drive-by hacking is the hacking where the hackers can access their data and steal their data, use their network services from some "safe" distance without going inside the company or an organization.
Drive-by download is the type of download of the malicious code into your mobile devices or the computers which occur by designed and it leave you to the cyberattack.
For the view of Exercise 4.18, explain why the database system would not allow a tuple to be inserted into the database through this view.
For reference
For the database of Figure 4.12, write a query to find the ID of each employee with no manager. Note that an employee may simply have no manager listed or may have a null manager. Write your query using an outer join and then write it again using no outer join at all.
OUTER JOIN
select e.ID from employee e left outer join manages m on e.ID = m.ID
where m.manager_id is null;
NO OUTER
select e.ID from employee e where e.ID not in (select m.ID from manages m) or e.ID in (select m.ID from manages m where m.manager_id is null);
