NPTEL E-Business Week 9 Assignment Answers 2024
1. Decision support systems are typically used at______________level of management.
a. Top
b. Middle
c. Bottom
d. All
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2. What does a web crawler do?
a. Discovers security and privacy loopholes of websites
b. Downloads and indexes content from all the websites.
c. Searches appropriate keywords in a website.
d. All of the above
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3. What type of data is there in an access log file?
a. Binary values
b. Floating point numbers
c. Numeric values
d. Text
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4. How to detect crawler activities in a web site?
a. Analyzing the error log file
b. Analyzing the cookies
c. Analyzing the referrer field of the access log
d. Analyzing the user agent field of the access log
Answer :-
5. During pre-processing stage of the access log analysis, the missing entries due to caching can be identified
a. After page view identification
b. Before pageview identification
c. After sessionization
d. Before sessionization
Answer :-
6. Which of the following analysis of access log can help gaining insight into typical customer behaviors
a. Data Mining
b. Static aggregation
c. Session Analysis
d. OLAP
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7. During access log analysis, the data was collected from multiple servers and during multiple time periods in a day and arranged as a multi-dimensional data cube in a data warehouse. Which type data analysis could be most appropriate here.
a. Data Mining
b. Static aggregation
c. Session Analysis
d. OLAP
Answer :-
8. Data pre-fetching and personalization for a website can be achieved by developing_____________ for users browsing behavior.
a. Association rules
b. Causal models
c. Sequence mining models
d. Probabilistic models
Answer :-
9. The nodes in the static part of the customer behaviour model graph represent
a. All the sessions accessed from the access log of the website
b. All the registered users of a website
c. All the pages of the website allotted to ecommerce activities
d. A page or a group of pages representing the functional area
Answer :-
10. The customer’s average think time can never be zero due to the inherent delays involved in
a. Network
b. Server
c. Client
d. All of the above
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