Bookstore and BookSearch are the two entities for the given scenario.
Explanation:
- For the given Book.com virtual store, there can be two entities like Bookstore and BookSearch.
- Bookstore can have all the details of the books in the virtual store. hence the attributes can be
- Bookstore attributes: bookname, Authorname, Publisher, Publishedyear, Agegroup, category.
- BookSearch entity can be used to search the books in the virtual store.
- Booksearch attributes: bookname, category, bookid, authorname.
Answer:
The correct Answer is 0.0571
Explanation:
53% of U.S. households have a PCs.
So, P(Having personal computer) = p = 0.53
Sample size(n) = 250
np(1-p) = 250 * 0.53 * (1 - 0.53) = 62.275 > 10
So, we can just estimate binomial distribution to normal distribution
Mean of proportion(p) = 0.53
Standard error of proportion(SE) = 
= 
= 0.0316
For x = 120, sample proportion(p) = 
= 
= 0.48
So, likelihood that fewer than 120 have a PC
= P(x < 120)
= P( p^ < 0.48 )
= P(z < 
) (z=
)
= P(z < -1.58)
= 0.0571 ( From normal table )
The Network Mapper (Nmap) commands that would be useful on this test network are:
- nmap xxx.xxx.x.x -p
- nmap xxx.xxx.x.x -A
<h3>What is a
penetration test?</h3>
A penetration test can be defined as a cybersecurity technique that simulates a cyber attack against an end user's computer system, so as to scan, identify, test and check for exploitable vulnerabilities in the following:
This ultimately implies that, a penetration test avails an tester the ability to exploit a weakness and potential security threats on a test network as a privileged user, during vulnerability assessments of the system.
<h3>The Network Mapper (Nmap) commands.</h3>
In this scenario, the Network Mapper (Nmap) commands that would be useful on this test network are:
- nmap xxx.xxx.x.x -p
- nmap xxx.xxx.x.x -A
Read more on penetration test here: brainly.com/question/25813524
Answer:B kept at a secure location at the facility
Explanation:
