Web Technologies MCQ Quiz - Objective Question with Answer for Web Technologies - Download Free PDF

Important Points

• A Web server is a software/Hardware responsible for accepting HTTP requests from clients, which are known as Web browsers, and serving them HTTP responses along with optional data contents, which usually are Web pages such as HTML documents and linked objects (images, videos, etc.).

Key Points

Key Points

Option 1: Reference type variables are stored in the heap.

True, Reference Type variables are stored in a different area of memory called the heap. This means that when a reference type variable is no longer used, it can be marked for garbage collection.

Examples of reference types are Classes, Objects, Arrays, Indexers, Interfaces, etc.

Option 2: Value-type variables are stored in the stack.

True,  Value Type variables are stored in the stack. A Value Type stores its contents in memory allocated on the stack. When you created a Value Type, a single space in memory is allocated to store the value and that variable directly holds a value.

Option 3: In unboxing, a value type is converted to an object type.

False, Boxing is the process of converting a value type to the type object or to any interface type implemented by this value type. When the common language runtime (CLR) boxes a value type, it wraps the value inside a System. Object instance and stores it on the managed heap. Unboxing extracts the value type from the object.

Hence the correct answer is only I and ii.

Concept:

XML stands for extensible markup language which lets you define your own tags in the order they occur. It is derived from SGML (Standard Generalized markup language).

Explanation:

XML is a platform-independent language. It is used to store and organize the data. The first line in the XML document is the XML prolog which includes XML declaration, DOCTYPE, version and comments. XML documents must contain a root element. In XML1.0, all things in the prolog are optional while for version 1.1, declaration is required in the prolog.

Syntax for declaring the version of XML is :

XML is slightly different from HTML. In html, we have predefined tags, while in XML we have to define our own tags. XML .XML is used for storing and transporting the data. Using the XML sharing of data between two programs on different platforms is possible. 

Key Points

 The tag is used to embed an image in an HTML page. src - Specifies the path to the image. alt - Specifies an alternate text for the image, if the image for some reason cannot be displayed.

Syntax:

src Attribute= The required src attribute specifies the path (URL) to the image.

Example:

Hence the correct answer is src.

Model–view–controller (MVC) is a software design pattern commonly used for developing user interfaces which divides the related program logic into three interconnected elements

1. Model

2. View

3. Controller

Model

• Model is the central component of the architecture.
• It is the application's dynamic data structure, independent of the user interface.
• It directly manages the data, logic and rules of the application.

View

• Any representation of information such as a chart, diagram or table.
• Multiple views of the same information are possible, such as a bar chart for management and a tabular view for accountants.

Controller

Accepts input and converts it to commands for the model or view.

The correct answer is Google Chrome.

Key Points

• The Omnibox is a URL box that combines the functions of both the address bar and search box.
• If a user enters the URL of a site previously searched from, Chrome allows pressing Tab to search the site again directly from the Omnibox.
• If a user types keywords into the Omnibox that don't match any previously visited websites and presses enter, Chrome will conduct the search using the default search engine.

Additional Information

• The first web browser - or browser-editor rather - was called WorldWideWeb.
• The first web browser, WorldWideWeb, was developed in 1990 by Tim Berners-Lee for the NeXT Computer.
• The first tool used for searching content (as opposed to users) on the Internet was Archie.

The correct answer is a microcomputer.

Key Points

• Microcomputer is a small size computer using a single-chip microprocessor where the central processing unit is stored. 
• Microcomputer consists of keyboard, monitor, mouse, printers and other peripherals. These types of computers receive the input from the user, process it and send it to the output unit.
• In a client-server architecture, microcomputers work as client computers which generate the request to the server and receive the services from the centralized server. The user of the client computers can generate requests to the server through an interface provided by the client computers.

Thus the correct answer is a microcomputer.

Additional Information

• Mainframe computers are the computers used by organizations to process a huge amount of databases. Usually, mainframe computers are used for making transactions between the servers, processing commercial data for business analysis and so on. An example of a mainframe computer is the Z-series mainframe IBM computer.
• Mini computers are recognized as small computers used for scientific, engineering, process and managing the database and so on. It is powerful and more expensive than the microcomputer.
• PDA is the abbreviation of Personal Digital Assistants. It is so small in size that can fit the palm of the user's hand. Palm Tungsten is an example of PDA.

• The Internet has created revolutionary changes in this era of Information Technology.
• It is a one-stop platform to locate any information one is interested in. 
• Searching for specific information is the main purpose of using the Internet and search engines are one such tool.

Important Points

Search Engines:

• A search engine helps to manage, filter, and retrieve the information for its users.
• Search engines are automated tools to search for information from a collection using metadata stored in the database of search engines.
• It is an information retrieval system and assists in locating information on the web.
• Search engines are also defined as online utilities that quickly search thousands of web documents for a word or phrase being searched.
• Search engines are usually accessed using web clients called web browsers. 
• Google, Bing, MSN, and Yahoo! are the most popular search engines.
•  

Key Points

• Windows:
  • Windows is a collection of programs known as an operating system (OS) that controls a PC (personal computer).
  • First produced by Microsoft in November 1985. 
  • Linux is an open-source operating system (OS). 
• MS Word: 
  • Microsoft Word or MS Word (often called Word) is a graphical word processing program that users can type with.
  • It is made by the computer company Microsoft.
  • Its purpose is to allow users to type and save documents. Similar to other word processors.
  • It has helpful tools to make documents.

Hence, An example of an 'internet search engine' is Yahoo.

The correct answer is To

Key Points

• To field is generally for the main recipients of your email. 

• CC stands for carbon copy and BCC stands for blinding carbon copy.
• CC and BCC are both ways of sending copies of an email to additional people.
• It is used to send copies of an email to additional people by specifying multiple addresses in the To field.
• BCC field of a message, those addresses are invisible to the recipients of the email.
• Any email addresses that you place in the To field or the CC field are visible to everyone who receives the message.
• You put four email addresses in the To field or put one email address in the To field and three in the CC field, the four people will all receive the same email.
• They’ll also be able to see the email address of every other recipient in the To and CC fields.

Explanation:

Web browser

• A browser is a software application used to enable computers users to locate and access web pages
• The browser translates the basic HTML code that allows us to see image, text video and listen to audios on the website, along with hyperlinks that let us travel to different web pages
• The Web utilizes browsers, such as Internet Explorer or Firefox, to access web documents called web pages that are linked to each other via hyperlinks

Examples of Web Browsers:

• Hence, Google's web browser is called 'Chrome', Apple’s web browser is called 'Safari' and "Mozilla Firefox" is an open-source web browsing software.
• Android is a Linux based operating system which is designed for touch screen mobiles (tablets, smartphones).