Answer:
Examples of Fact-finding techniques includes:
-
Prototyping
-
Questionnaires
- Research and sites visit
-
Interviews
Explanation:
It is important to note that a database system is a tool that allows users to define, create, maintain, and control access to a collection of logically related data and description of these data, designed to meet the information needs of an organization.
<u>Prototyping
</u>
<em>Advantage:</em> enables testing and understanding of the system in advance before final implementation of solution, while requiring less time for research.
<em>Disadvantage:</em> Training and Development cost consumes resources.
<u>Research and site visit </u>
<em>Advantage :</em> better time management if the problem has been researched upon before.
<em>Disadvantage:</em> appropriate permission is often needed before using research materials.
<u> Questionnaires
</u>
<em>Advantage: </em>This technique is not expensive, and responses can be calculated and analysed quickly.
<em>Disadvantage:</em> There may be Incomplete answers received from users and body language of user cannot be observed.
<u>Interviews</u>
<em>Advantage:</em> The body language of interviewees is been perceived.
<em>
Disadvantage: </em>Interviewing is time consuming and costly.
Answer:
D. O(NlogN)
Explanation:
The computation of the overall algorithm cost is as follows:
Given that
O(logN) + O(N) × O(logN) + 1
In the case of complexity we considered the high order that dominates the other terms
Thus, that term would be
O(N) × O(logN)
It could be rewrite as
O(NlogN)
Hence, the correct option is D.
All the other options are wrong
They sometimes offer free service
Answer: Jim left the computer unattended while shopping for supplies to be used at the next crime scene.
Explanation: While transporting the evidence to a secure location (lab), he left the computer unattended in his car and goes shopping for supplies that will be used in his next crime scenes. This act will give the criminals or their accomplice the opportunity to break into his car and tamper with what ever evidence he might have left behind in his car.
Answer:
Tab isolation
Explanation:
Tab isolation is a feature of the browser that works to protect your data from malware. its uses to enhance the reliability of the browser by considering the impact of the crash.
A browser without the tab isolation can be crash fully due to the crashing of one tab. this feature helps to recover the previous opening tab after crashing while on the previous version of the browser if one tab crashes then it automatically crashes all other tabs.
