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COMPUTER APPLICATIONS 4 Marks Quetions

Internet Basics · CBSE STD 10 (CBSE - English Medium). 6 questions.

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4 Marks Quetions

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6 questions · timed · auto-graded

Question 14 Marks
What is DNS and also explain its functions?
Answer
DNS stands for Domain Name System. It is a hierarchical distributed naming system for computers, services or any resources connected to the Internet or a private network. It associates various information with domain names assigned to each of the participating entities.
The different functions of DNS are as follows:
  • It translates meaningful domain names into the numerical IP addresses, which is needed for the purpose of locating computer services and devices world wide.
  • It serves as the phone book for the Internet by translating human friendly computer host names into IP addresses.
  • The DNS can be quickly updated, allowing a service’s location on the network to change without affecting the end users.
  • It distributes the responsibility of assigning domain names and mapping those names to IP addresses by designating authoritative names servers for each domain.
  • It also specifies the technical functionality of database service. It defines the DNS protocol, a detailed specification of the data structure and data communication exchanges used in DNS, as part of the Internet Protocol Suite (IPS).
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Question 24 Marks
Read the following paragraph. Find six network and communication related abbreviations and give their expanded form alongwith a single-line definition of each of them.
The RBI is planning to expand its connectivity with all major banks of India. The plan includes providing TCP connectivity through HTTP for easy access points and seeks help from some ISPs to join hands in this venture.
Also, there is a plan to set-up IIS and SMTP servers. Some banks will go for ADSL line while others will use leased line connectivity to access these services.
The RBI is also taking help of IIT professors in this venture.
Answer
Six network and communication related abbreviations are as follows:
  1. TCP (Transmission Control Protocol) A protocol developed for the Internet to get information from one network device to another.
  2. HTTP (HyperText Transfer Protocol) A protocol that transmits hypertext over networks. This is the protocol of the Web.
  3. ISP (Internet Service Provider) An organisation that provides access to the Internet through various connectivity methods.
  4. IIS (Internet Information Server) It is a Microsoft proprietary Web server software.
  5. SMTP (Simple Mail Transfer Protocol) It distributes E-mail messages and attached files to one or more electronic mail boxes.
  6. ADSL (Asymmetrical Digital Subscriber Line) A data communication technology that enables faster data transmission over copper telephone lines than a conventional voice band modem can provide.
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Question 34 Marks
Identify Web addresses and E-mail addresses from the following
  1. www.kool.com
  2. Raga100@rediffmail.com
  3. www.hotspider.co.in
  4. 123hotshot@elixir.co.in
Answer
  1. and
  2. Web address
  3. and
  4. E-mail address
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Question 44 Marks
 Identify Web addresses and E-mail addresses from the following
  1. www.scrapbook.com
  2. aba@scrapbook.com
  3. www.countrywide.co.in
  4. 123@hotshot.co.in
Answer
  1. and
  2. and
  3. are Web address
  4. are E-mail address
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Question 54 Marks
Why is Internet called ‘Network of Networks’?
Answer
  • Internet is called ‘Network of Networks’ because it is global network of computers that are linked together by cables and telephone lines making communication possible among them. It can be defined as a global network over a million of smaller heterogeneous computer networks.
  • The network which consists of thousands of networks spanning the entire globe is known as Internet.
  • The Internet is a world wide collection of networked computers, which are able to exchange information with each other very quickly.
  • Mostly people use the Internet in two ways, E-mail and World Wide Web. In Internet, most computers are not connected directly, they are connected to smaller networks, which in turn are connected through gateways to the Internet backbone.
  • A gateway is a device that connects dissimilar networks. A backbone is central interconnecting structure that connects one or more networks.
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Question 64 Marks
How do Internet help us?
Answer
Internet can be useful for us in following ways:
  1. Allows organisations to advertise their products.
  2. Provides information.
  3. Easily communicate with other people.
  4. Save paper as we can publish documents on the Internet.
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4 Marks Quetions - COMPUTER APPLICATIONS STD 10 Questions - Vidyadip