Thursday, 21 January 2021

CS614-Data Warehousing Quiz MCQs Lecture 23-45 Finalterm Objective Questions | SUPERSTARWEBTECH



CS614-Data Warehousing Quiz MCQS #Objective #Questions #FinalTerm

1. Which of the following is NOT one of the variants of Nested-loop join?
2. ___ lists each term in the collection only once and then shows a list of all the documents that contain the given term
3. The optimizer uses a hash join to join two tables if they are joined using a equijoin and 
4. In nested-loop join case, if there are 'M' rows in outer table 'N' rows in inner table, time complexity is 
  • O (M log N)
  • O (log MN)
  • O (MN)
  • O (M + N)
5. Goal driven approach of data warehouse development was result of ___ work
6. In ___ phase of a fundamental data warehouse life cycle model, a working model of data warehouse is deployed for a selective set of users
7. One of the drawbacks of waterfall model is that:
8. Implementation of a data warehouse requires ___ activities
  • Highly integrated
  • Loosely integrated
  • Tightly decoupled
  • None
9. The ___ phase of fundamental data warehouse life cycle model includes data warehouse daily maintenance activities
  • Deployment
  • Operation
  • Enhancement
  • Maintenance
10. As per Bill Inmon, a data warehouse, in contrast with classical application is 
  • Data driven
  • Resource driven
  • Requirement driven
  • Time sensitive
11. Which of the following activity executes parallel with all other activities in Kimball's DWH development approach?
12. Which of the following activity/activities is/are part of project planning phase in Kimball's DWH development approach?
  • Obtain resources
  • Establish the preliminary scope and justification
  • Assess organization's readiness for a data warehouse initiative
  • All of the given
13. Improper documentation results the problem(s) like:
  • Maintenance issue
  • New developers unable to configure already existing code
  • Lot of time required for enhancing the code
  • All of the given
14. Which of the following is NOT one of the possible pitfalls in DWH Life Cycle & Development?
  • Not having multiple servers
  • Low priority for OLAP Cube Construction
  • Improper documentation
  • None
15. The Kimball's iterative data warehouse development approach drew on decades of experience to develop the ___
16. For a smooth DWH implementation we must be a technologist
17. During the application specification activity, we also must give consideration to the organization of the applications
18. The most recent attack is the ___ attack on the cotton crop during 2003-04, resulting in a loss of nearly 0.5 million bales
19. We must try to find the one access tool that will handle all the needs of their users
20. As opposed to the outcome of classification, estimation deal with ___ value outcome
21. To identify the ___ required we need to perform data profiling
22. ___ in agriculture extension is that pest population beyond which the benefit of spraying outweighs its cost
23. People that design and build the data warehouse must be capable of working across the organization at all levels
24. The ___ is only a small part in realizing the true business value buried within the mountain of data collected and stored within organizations business systems and operational databases
25. Data Transformation Service (DTS) provide a set of ___ that lets you extract, transform, and consolidate data from disparate sources into single or multiple destinations supported by DTS connectivity
  • Tools
  • Documentations
  • Guidelines
  • Graphs
26. The goal of ___ is to look at as few blocks as possible to find the matching records
27. A dense index, if fits into memory, costs only ___ disk I/O access to locate a record by given key
  • One
  • Two
  • log n
  • n
28. The key idea behind ___ is to take a big task and break it into subtasks that can be processed concurrently on a stream of data inputs in multiple, overlapping stages of execution
29. Non uniform distribution, when data is distributed across the processors, is called ___
  • Skew in partition
  • Pipeline distribution
  • Distributed distribution
  • Uncontrolled distribution
30. Th goal of ideal parallel execution is to completely parallelize those parts of a computation that are not constrained by data dependencies. The smaller the portion of the program that must be executed ___ the greater the scalability of the computation
31. Data mining is a/an ___ approach, where browsing through data using data mining techniques may reveal something that might be of interest to the user as information that was unknown previously
32. Data mining evolve as a mechanism to cater the limitations of ___ systems to deal massive data sets with high dimensionality, new data types, multiple heterogeneous data resources etc.
33. ___ is the technique in which existing heterogeneous segments are reshuffled, relocated into homogeneous segments.
34. To measure or quantify the similarity or dissimilarity, different techniques are available. Which of the following option represent the name of available techniques?
35. For a given data set, to get a global view in un-supervised learning we use
36. In DWH project, it is assured that ___ environment is similar to the production environment
37. For a DWH project, the key requirement are ___ and product experience
38. Pipeline parallelism focuses on increasing throughput of task execution, NOT on ___ sub-task execution time
39. Many data warehouse project teams waste enormous amounts of time searching in vain for a ___
  • Silver bullet
  • Golden bullet
  • Suitable hardware
  • Compatible product
40. Focusing on data warehouse delivery only often end up ___
41. Pakistan is one of the five major ___ countries in the world
42. ___ is a process which involves gathering of information about column through execution of certain queries with intention to identify erroneous records
  • Data profiling
  • Data Anomaly Detection
  • Record Duplicate Detection
  • None
43. ___ contributes to an under-utilization of valuable and expensive historical data, and inevitably results in a limited capability to provide decision support and analysis
44. DTS allows us to connect through any data source or destination that is supported by ___
45. Execution can be completed successfully or it may be stopped due to some error. In case of successful completion of execution all the transactions will be ___
46. If some errors occurs, execution will be terminated abnormally and all transactions will be rolled back. In this case when we will access the database we will find it in the state that was before the ___
47. To judge effectiveness we perform data profiling twice
48. ___ if fits into memory, costs only one disk I/O access to locate a record by given key
49. The purpose of the House of Quality technique is to reduce ___ types of risk
50. NUMA stands for ___
51. There are many variants of the traditional nested-loop join. If the index is built as part of the query plan and subsequently dropped, it is called
52. Investing years in architecture and forgetting the primary purpose of solving business problems, results in inefficient application. This is the example of ___ mistake
  • Extreme Technology Design
  • Extreme Architecture Design
  • None
53. Classification consists of examining the properties of a newly presented observation and assigning it to a predefined ___
  • Object
  • Container
  • Subject
  • Class
54. During business hours, most ___ systems should probably not use parallel execution
  • OLAP
  • DSS
  • Data Mining
  • OLTP
55. In contrast to statistics, data mining is ___ driven
56. The goal of ideal parallel execution is to completely parallelize those parts of a computation that are not constrained by data dependencies. The ___ the portion of the program that must be executed sequentially, the greater the scalability of the computation.
57. If every key in the data file is represented in the index file then index is 
  • Dense index ✔
  • Sparse index
  • Inverted index
  • None
58. An optimized structure which is built primarily for retrieval, with update being only a secondary consideration is 
59. ___, if too big an does not fit into memory, will be expensive when used to find a record by given key
60. Which of the following is not an activity of Data Quality Analysis Project?
61. Data mining uses ___ algorithms to discover patterns and regularities in data
62. In contrast to data mining, statistics is ___ driven
63. There are many variants of the traditional nested-loop join. When the entire table is scanned it is called
64. Which of the following is not a technique of Data Mining?
65. There are many variants of the traditional nested-loop join, if there is an index is exploited, then it is called ___

Monday, 18 January 2021

MGT610-Buisness Ethics Quiz MCQs Lecture 23-45 Finalterm Objective Questions | SUPERSTARWEBTECH



MGT610-Buisness Ethics Quiz MCQS #Objective #Questions #FinalTerm

1. The antitrust view is based on a number of assumptions. Who has summarized the basic propositions this traditional view is based on?
2. Which of the following view argues that prices nd profits in highly concentrated industries are higher than they should be?
3. Water pollution comes from all except?
4. Fossil fuels include all except?
  • Oil
  • Coal
  • Wind
  • Natural gas
5. Which of the following is TRUE regarding acid rain?
6. Which of the following statement is TRUE?
7. Which of the following refers to the saving or rationing of natural resources for later use?
8. Which of the following views claims that the power of oligopolies is not as large as it appears?
9. How much pounds of plutonium waste has been produced by each nuclear reactor every year?
  • 255
  • 260
  • 265
  • 275
10. Resource depletion may be in any form except?
11. Which of the following is signed by the buyer and seller that details the terms of a purchase?
12. Who argued that misrepresentation in the making of a contract cannot be universalized?
  • Rawls
  • Kant
  • Adam Smith
  • None
13. Who should bear the costs of pollution control?
14. Relationship between a business firm and consumer essentially be?
15. Group of thinkers, sees the key form of hierarchy connected to the destruction of the environment as the domination of women by men is known as?
16. Internalizing external costs is also consistent with which form of justice?
17. Saving of finite and depletable resources of the world is known as?
18. All of the following are the reasons due to which our probability judgements may go wrong except
19. Which of the following makes freedom of choice impossible?
20. Which of the following includes the costs that the firm does not pay the costs of pollution and medical care that result from the manufacture of the commodities?

Thursday, 7 January 2021

CS619 Final Project Phase 1 Gathering and Analysis Requirements | How to make SRS? | System Requirements Specifications (SRS) | SSWT

 Dear Students!

In this post you will learn How to make SRS document? for your final project CS619. As we know that the students of BSCS/BSSE/BSIT in 7th/8th Semester and MIT/MSCS in 3rd/4th Semester have to select CS619 Project. This project is a must to get Degree. It carries 6 credit hours. So, here we will guide you about the first step of CS619 Project i.e. Gathering and Analysis Requirements.



PHASE-1 Gathering and Analysis Requirements

In this phase you are required to make SRS Document.

What is SRS?


SRS stands for Software Requirements Specification. It is a detailed document that tells about how the system is expected to perform. In this document, following topics are covered:
  • Scope of the Project
  • Software Requirements
    •   Functional requirements
    •   Non-Functional requirements
  • Use Case Diagram
  • Usage Scenarios
  • Adopted Methodology
  • Work Plan
Now let's discuss them one by one in detail.

    Scope of the Project


    What is scope?

    The scope of the project defines the necessary information required to start a project. It basically answers to the following questions:
    • What are the needs?
    • What is your goal?
    • How the system will fulfill the user needs?
    • Why user should use this system?

    For example:

    Here is an example of scope of the project: An online departmental store.
    👉 Click here to download the project file: Cash and Carry online Departmental Store

    "Cash & Carry is an Online Departmental Store where people will be offered with a wide range of both grocery and non-grocery items to buy online. It offers items to residents located anywhere in Pakistan. This store is being developed to help users to explore their daily, weekly or monthly required items. The payment gateway methods are easypaisa or cash on Delivery.

    In this project, our goal is to facilitate the users to buy grocery and non-grocery items at the ease of their home. The users will interact with our store through Website. Cash & Carry Online Store System is built in the form of Web Application which includes User registration/login system, search system, information flow charts, administration module, payment gateways etc. When the user makes a transaction and purchases an item from this store, he/she will receive items at his/her doorstep along with an invoice.

    Moreover, this system acts as power up approach for people. And also, time saving. As some people like working women/men and old age persons might not be able to go out due to some reasons like tiredness, illness or time constraint. So, Cash & Carry Online Departmental Store plays a significant Role in the life of people whether it’s a man, a woman, a student, or an elderly."

    💡 Tip: Don't need to add history and philosophy. Just write the specific content only in your own words. 

    Software Requirements


    Here you will write the functional and non-functional requirements in detail.

    Functional Requirements:

    The functional requirements state: “What a system must do?”. Their emphasis is on the user requirements. They fulfill the users desired tasks. These must be put into the system by the developers to meet users’ requirements. 

    For example:

    This example is related to the above mentioned sample project.

    GUI
    The user interface will be simple enough to navigate easily. It will contain only two broad main categories Grocery and Non-grocery items on the home page with other tools like search, add to cart, login/signup buttons, FAQ and information flow charts links etc. 

    Registration
    The customers can register themselves into our system and then login to place order. Registration is mandatory to buy and pay for the items. 

    💡 Tip: You should write all the required functionalities of your project. There may be more than these like: Search, Order Track, Save Selection etc.

    Non-Functional Requirements:

    The non-functional requirements describe: “How a system should behave?”. They specify characteristics of the system.

    For example:

    This example is related to the above mentioned sample project.

    Usability
    The usability is a key factor to facilitate the user. The system must provide a user-friendly environment to its customers. To interact with the user, system should give a proper list of categories for the user to search their required items.

    Security
    To ensure that the user’s information is safe, the system should protect the user’s data. It must refrain the hackers to unauthorized access. The system must use specific standards to secure it from malware attacks and unauthorized access.

    💡 Tip: You should write all the required non-functionalities of your project. There may be more than these like: Accuracy, Reliability, Performance etc.

    Use Case Diagram


    What is Use Case?

    A Unified Modeling Language which represents the interaction between the user and the system. It shows the relationship that exists between the system and the user. The user/actor is involved in different use cases like: login, registration, search, add to cart etc. 

    For example:

    Here is an example Use case diagram of the departmental store 


    Click here to learn more on: How to make Use Case Diagram? 

    Usage Scenarios


    What are usage scenarios?

    They describe the events/actions that occur when the user interacts with the system. They show the real world example that how the people or users interact with the system, What actions do they perform?, What are the conditions?, What will be the exceptions if the action does not meet the desired conditions?

    So here in this section you are required to write the usage scenarios of all cases in the table format which explains:
    • Use Case title
    • Use Case Id
    • Actions Description
    • Alternative Path
    • Pre-conditions
    • Author
    • Exceptions
    • Post-conditions
    You are supposed to provide usage scenario for each use case present in your use case diagram. So basically it explains each use case in detail.

    For example:

    Here is a sample of Usage Scenario from the Online Departmental Store Project.

    Use Case Title

    Register

    Use Case Id

    UC 1.1

    Actions

    A registration Page will open

    Description: A user can register themselves by providing his/her information like: Name, Username, Email, Phone Number, Address, and Password.

    Alternative Path: The user must register to place an order and add items to cart.

    Pre-conditions: The system should provide a proper form for user to fill their required information.

    Author

    Exceptions

    Unregistered User

    If the user leaves any field empty or inputs wrong email/phone number or the inserted password does not match the requirements then user registration will not take place.

    Post Conditions: A success message should be displayed on successful registration.


    🖉 Note: This is only one scenario from the use case diagram. You have to write scenarios for each use case present in the Use case Diagram.

    Adopted Methodology


    Here you will write in detail about which Software Development Lifecycle SDLC Model you adopted for this project. In short you will write about Waterfall Model and Spiral Model with diagrams. And then you will write VU Process Model which is a combination of Waterfall Model and Spiral Model proposed by Virtual University of Pakistan.

    Waterfall Model

    What is waterfall model?

    Waterfall model is a SDLC approach used to make a linear system sequentially. It was the very first process model. This model divides the software development life cycle into different steps or phases. Each phase has its responsibilities and different objectives. This model is unidirectional. Each phase is dependent on the deliverables of the previous phase. The consequences of one phase are the inputs for the next phase. The main advantage of this model is that it is easy to understand and use. It is best for small projects when requirements are known. But there is high amount of risk of waterfall model and it is not suitable for the projects that have changing requirements.




    Spiral Model

    What is Spiral Model?

    The spiral model is a SDLC risk-driven method. It combines the iterative models with elements of Waterfall model. The model works well for large projects. In this model each next stage is link to the previous so commutation flow can go in both directions and if changes come then they can easily be adjusted. This guarantees that there is no conflict with the previous requirements.


    VU Process Model

    What is VU Process Model?

    VU process model is called hybrid approach of website development. It is the combination of both waterfall and spiral model. This model is easy to understand. It is proposed by Virtual University of Pakistan. This model will maximize the quality of the website and reduce the risk because waterfall avoid overlapping which makes it easy to understand and spiral uses for critical projects. We need both functionalities for our project so that’s why we use VU process model because it’s a combination of both spiral and waterfall process Models.



    Work Plan


    Here you will provide Gantt chart of your final project. 

    What is Gantt Chart?

    It is a type of horizontal bar chart which tells the timeline of the project. It shows the starting and finishing time of your project phases. See below to get an idea.

    For example:



    We hope you understood these concept clearly. Feel free to ask any question. 

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