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Web Applications and Databases:

Web applications are the application software that runs on a web server. They are different from the computer-based computer programs that run locally on the user’s Operating System. Web applications are different and can be accessed by the user with the help of a web browser and an active network connection. A database can be defined as an organized collection of structured information or data.


Web Applications and Databases Sample Questions:

Question 1: Which of the following serves the web pages?


(a) Host

(b) Client

(c) Server

(d) Router 

Answer: (c)

Explanation: The server is a special computer that provides resources, data, services, or programs to other computers (clients), over a network.


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Question 2: Which of the following computer requests web pages from the server?


(a) Host

(b) Server 

(c) Client

(d) Router

Answer: (c)

Explanation: The client can be defined as software or hardware that accesses the services provided by the server in the client-server model of Computer Networks.


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Question 3: Which of the following web pages is not interactive and its primary purpose is to display information only?


(a) Dynamic

(b) Server

(c) Client

(d) Static

Answer: (d)

Explanation: Static webpages are used for the purpose of displaying information to the user which is exactly stored in the format to be displayed, unlike the dynamic web pages which are generated by the web applications.


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Question 4: Which of the following can initialize a new instance of the Line Class?


(a) Border

(b) Line()

(c) Surround 

(d) None of these

Answer: (b)

Explanation: Line() is a constructor and it is used for the purpose of initializing a new instance of the Line class.


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Question 5: Which term refers to text that cannot be modified by the user?


(a) Constant

(b) Dynamic

(c) Static

(d) Hardcoded

Answer: (c)

Explanation: The most common sort of text is static text. When you need to add text to the Stage, Buttons, or any other text that doesn't need to update or load from an external source, utilise static text.


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Question 6: A relational database is made up of a collection of ?


(a) Tables

(b) Fields

(c) Records

(d) Keys

Answer: (a)

Explanation: Fields are the relation or table's columns. Each row in a relation is referred to as a record.


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Question 7: Using which method, the problem of ordering the update in multiple updates can be avoided?


(a) Set

(b) Where

(c) Case

(d) When

Answer: (c)

Explanation: The order of updating tuples can be added using case statements.


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Question 8: Which of the following is referred to by the phrase "NTFS"?


(a) New Technology File System

(b) New Tree File System

(c) New Table type File System

(d) Both A and C

Answer: (a)

Explanation: The FAT 32 file structure was used to store and handle files in older operating systems ( or File Allocation Table).


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Question 9: The tuples of the relations can be in which order?


(a) Any

(b) Same

(c) Sorted

(d) Constant

Answer: (a)

Explanation: Only the values are counted. The order of the tuples does not matter.


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Question 10: Which of the following terms refers to many copies of the same data (or information) occupying memory space?


(a) Data Repository

(b) Data Inconsistency

(c) Data Mining

(d) Data Redundancy

Answer: (d)

Explanation: When more than one copy of the exact same data exists in many locations, this is known as data redundancy.


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