1.
Internet is
Correct Answer
D. A world wide interconnected network of computers which use a common protocol to communicate with one another
Explanation
The correct answer is "a world wide interconnected network of computers which use a common protocol to communicate with one another." This answer accurately describes the internet as a global network of interconnected computers that communicate using a shared protocol. It emphasizes the worldwide nature of the internet and the fact that it is a network of computers that are linked together.
2.
The facilities available on the internet are
(i) electronic mail
(ii) remote login
(iii)file transfer
(iv)word processing
Correct Answer
B. I, ii, iii
Explanation
The correct answer is i, ii, iii. This is because electronic mail, remote login, and file transfer are all facilities available on the internet. Word processing is not typically considered a facility available on the internet, as it is a software application that can be used offline or online.
3.
Internet requires
Correct Answer
C. A commonly agreed set of rules to communicate between computers
Explanation
The correct answer is a commonly agreed set of rules to communicate between computers. This is because the internet is a global network of computers that need to communicate with each other. In order for this communication to happen smoothly, there needs to be a set of rules or protocols that are agreed upon by all parties involved. These protocols ensure that data can be transmitted and received correctly, allowing for seamless communication between computers on the internet.
4.
Each computer connected to the internet must:
Correct Answer
B. Have a unique IP address
Explanation
Each computer connected to the internet must have a unique IP address. This is because IP addresses are used to identify and locate devices on the internet. Without a unique IP address, it would be impossible for computers to communicate with each other effectively on the internet.
5.
IP address is currently:
Correct Answer
A. 4 bytes long
Explanation
The correct answer is 4 bytes long. An IP address is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. IPv4 addresses, which are currently in use, are represented by 32 bits or 4 bytes. IPv6 addresses, on the other hand, are represented by 128 bits or 16 bytes. Therefore, the given answer accurately states that IP addresses are currently 4 bytes long.
6.
IP addresses are converted to:
Correct Answer
C. A hierarchy of domain names
Explanation
IP addresses are not directly converted to a hierarchy of domain names. Instead, domain names are used to represent and organize IP addresses in a hierarchical manner. Domain names provide a more human-readable and memorable way to access websites and resources on the internet, while IP addresses are the numerical addresses used by computers to identify and communicate with each other on the network.
7.
Internet addresses must always have at least
(i) a country name or organization type
(ii) internet service provider’s name
(iii) name of organization
(iv) name of individual
(v) type of organization
Correct Answer
C. i, iii
Explanation
Internet addresses must always have at least a country name or organization type (i) and the name of the organization (iii). This means that every internet address should include information about the country or the type of organization it belongs to, as well as the name of the organization itself.
8.
Internet uses
Correct Answer
A. Packet switching
Explanation
Packet switching is the correct answer because it is the method used by the internet to transmit data. In packet switching, data is divided into small packets and sent over the network individually. These packets can take different routes to reach their destination and can be reassembled at the receiving end. This method allows for efficient use of network resources and enables data to be transmitted in a more flexible and reliable manner compared to other switching methods like circuit switching, telephone switching, and telex switching.
9.
Internet data is broken up as:
Correct Answer
B. Variable length packets
Explanation
Internet data is broken up into variable length packets. This means that the data is divided into packets of different sizes, depending on the amount of information being transmitted. Variable length packets allow for more efficient use of network resources, as they can adapt to the specific needs of each transmission. This flexibility enables faster and more reliable data transfer, as well as better utilization of bandwidth.
10.
Internet packet data structure consists of
(i) source address
(ii) destination address
(iii) The serial number of packets
(iv)message bytes
(v)Control bits for error checking
(vi) Path identification bits
Correct Answer
C. I, ii, iii, iv, v
Explanation
The correct answer is i, ii, iii, iv, v. The internet packet data structure consists of the source address, destination address, serial number of packets, message bytes, and control bits for error checking. The path identification bits are not included in the internet packet data structure.
11.
The packets of an internet message:
Correct Answer
C. Go along different paths based on path availability
Explanation
The correct answer is "go along different paths based on path availability". This means that the packets of an internet message do not follow a predetermined path or a path based on priority. Instead, they are routed along different paths based on the availability of those paths. This allows for efficient routing of packets, as the network can dynamically choose the best available path for each packet at any given time.
12.
The time taken by internet packets:
Correct Answer
C. Is irrelevant for audio packets
Explanation
The time taken by internet packets may vary for different packets, but it is irrelevant for audio packets. This means that the timing of audio packets is not crucial for their transmission and reception. Unlike other types of packets, such as data packets, where timing is important for proper functioning, audio packets can be transmitted and received without strict adherence to specific time intervals.
13.
By an intranet we mean:
Correct Answer
D. A network connecting all computers of an organization and using the internet protocol
Explanation
The correct answer is "a network connecting all computers of an organization and using the internet protocol". This is because an intranet is a private network that is used within an organization and is based on internet protocols. It allows for the sharing of information and resources among the computers and users within the organization. It is different from the other options as it specifically mentions the use of the internet protocol and the connection of all computers within the organization.
14.
By an extranet we mean:
Correct Answer
B. The intranets of two co-operating organizations interconnected via a secure leased line
Explanation
An extranet refers to the intranets of two co-operating organizations interconnected via a secure leased line. This means that two organizations have their own private networks (intranets) and they are connected to each other through a secure and dedicated connection (leased line). This allows the organizations to share information, collaborate, and communicate securely over the network. It is different from the internet as it is a private network limited to the two organizations involved.
15.
World Wide Web:
Correct Answer
C. A collection of linked information residing on computers connected by the internet
Explanation
The World Wide Web refers to a collection of linked information that is stored on computers connected by the internet. It is not just another name for the internet itself, but rather a specific aspect of the internet that allows users to access and navigate through various web pages and websites. The World Wide Web is characterized by its interconnected nature, where information is linked together through hyperlinks, allowing users to easily move between different pages and websites.
16.
Among services available on the World Wide Web are
(i)Encryption
(ii)HTTP
(iii)HTML
(iv)Firewalls
Correct Answer
B. Ii and iii
Explanation
The correct answer is ii and iii. HTTP (Hypertext Transfer Protocol) is a protocol used for transferring data over the internet, while HTML (Hypertext Markup Language) is a markup language used for creating web pages. Both of these services are available on the World Wide Web. Encryption and Firewalls are not specifically mentioned as services available on the Web in the given options.
17.
A worldwide web contains web pages:
Correct Answer
D. Residing in many computers linked together using HTML
Explanation
The correct answer is "residing in many computers linked together using HTML". This answer accurately describes the nature of the worldwide web, which is a network of web pages that are stored on different computers and connected to each other through HTML links. HTML is the standard markup language used to create web pages, allowing them to be displayed and linked together on the internet.
18.
A web page is located using a:
Correct Answer
B. Uniform Resource Locator
Explanation
A web page is located using a Uniform Resource Locator (URL). A URL is a specific string of characters that provides the address of a resource on the internet. It includes the protocol (such as HTTP or HTTPS), the domain name or IP address of the server, and the specific path to the resource. URLs allow users to easily navigate and access web pages by providing a standardized way to identify and locate them. Universal Record Linking, Universal Record Locator, and Uniformly Reachable Links are not correct terms for describing the address of a web page.
19.
A URL specifies the following:
(i) protocol used
(ii) domain name of server hosting web page
(iii) name of folder with required information
(iv) name of document formatted using HTML
(v) the name of ISP
Correct Answer
A. I, ii, iii, iv
Explanation
A URL specifies the protocol used, the domain name of the server hosting the web page, the name of the folder with required information, and the name of the document formatted using HTML. This means that options i, ii, iii, and iv are all correct. The name of the ISP is not typically specified in a URL, so option v is not correct.
20.
HTML stands for?
Correct Answer
B. Hyper Text Markup Language
Explanation
HTML stands for Hyper Text Markup Language. It is the standard markup language used for creating web pages and applications. HTML uses various tags to structure the content and define the layout and appearance of the elements on a web page. It allows for the creation of hyperlinks, which enable users to navigate between different pages and websites.