قديم منذ /03-11-2017, 04:51 PM   #1

 
الصورة الرمزية A.Tareq
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مواضيعي | ردودي

 رقم العضوية : 10456
 تاريخ الإنتساب : Jul 2014
 مقر الإقامة : جدة
 فرع الجامعة : فرع جدة
 التخصص : بكالوريوس تقنية معلومات
 المستوى : المستوى الثامن
 المشاركات : 136
 الجنس : ذكر
 مستوى التقييم : A.Tareq is on a distinguished road
النقاط : 38

شكراً: 9
تم شكره 6 مرة في 4 مشاركة
Post Quiz 1


Question 1

Which of the following online analytical processing (OLAP) technologies does NOT require the precomputation and storage of information?

a.
MOLAP

b.
HOLAP

c.
ROLAP
d.
SQL

What is the management feature of a dashboard?

a.
summarized dimensional data to monitor key performance metrics

b.
summarized dimensional data to analyze the root cause of problems
c.
operational data that identify what actions to take to resolve a problem

d.
graphical, abstracted data to monitor key performance metrics

Question 3

What does the robustness of a data mining method refer to?

a.
its ability to overcome noisy data to make somewhat accurate predictions

b.
its ability to predict the outcome of a previously unknown data set accurately

c.
its ability to construct a prediction model efficiently given a large amount of data
d.
its speed of computation and computational costs in using the mode

Question 4

Which of the following is a data mining myth?
a.
The current state-of-the-art is ready to go for almost any business.
b.
Data mining requires a separate, dedicated database.

c.
Data mining is a multistep process that requires deliberate, proactive design and use.
d.
Newer Web-based tools enable managers of all educational levels to do data mining.


Question 5

What is the fundamental challenge of dashboard design?
a.
ensuring that users across the organization have access to it
b.
ensuring that the organization has the appropriate hardware onsite to support it

c.
ensuring that the organization has access to the latest web browsers

d.
ensuring that the required information is shown clearly on a single screen


Which component of a reporting system contains steps detailing how recorded transactions are converted into metrics, scorecards, and dashboards?

a.
data supply
b.
extract, transform and load
c.
Assurance
d.
business logic

Which type of visualization tool can be very helpful when a data set contains location data?

a.
bar chart
b.
geographic map

c.
tree map
d.
highlight table

Question 9

All of the following statements about data mining are true EXCEPT
a.
the potentially useful aspect means that results should lead to some business benefit.
b.
the valid aspect means that the discovered patterns should hold true on new data.
c.
the novel aspect means that previously unknown patterns are discovered.
d.
the process aspect means that data mining should be a one-step process to results.

Question 10

Which kind of chart is described as an enhanced variant of a scatter plot?

a.
bullet
b.
bubble chart

c.
heat map
d.
pie chart

Question 12

Identifying and preventing incorrect claim payments and fraudulent activities falls under which type of data mining applications?

a.
computer hardware and software

b.
retailing and logistics

c.
customer relationship management
d.
Insurance

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