Kerala Plus Two Computer Science Chapter Wise Previous Questions and Answers Chapter 7 Web Hosting
Question 1.
What type of hosting will you use to support a government website? Give its advantages. [March – 2016] (2)
Answer:
Types of web hosting : Various types of web hosting services are available. We can choose the web host¬ing services according to our needs depends upon the storage space needed for hosting, the number of visitors expected to visit, etc.
1) Shared Hosting : This type of hosting sharing resources, like memory, disk space and CPU hence the name shared. Several websites share the same server. This is suitable for small websites that have less traffic and it is not suitable for large websites that have large bandwidth, large storage space and have large volume of traffic.
Eg:
Shared hosting is very similarto living in an Apartment(Villas) complex. All residents are in the same location and must share the available resources(Car parking area, Swimming pool, Gymnasium, playground, etc) with everyone.
2) Dedicated Hosting : A web server and its resources are exclusively for one website that have large volume of traffic means large volume of requests by the visitors. Some Govt, departments or large organizations require uninterrupted services forthat round the clock power supply is needed. It is too expensive but it is more reliable and provide good service to the public.
Eg:
It is similar to living in an Our own house. All the resources in your house are only for you. No . one else’s account resides on the computer and would not be capable, of tapping into your resources.
3) Virtual Private Server (VPS): A VPS is a virtual machine sold as a service by an Internet hosting Service. A VPS runs its own copy of an OS (Operating System) and customers have super level access to that OS instance, so they can install almost any s/wthat runs on that OS. This type is suitable for websites that require more features than shared hosting but less features than dedicated hosting.
Eg:
It is similar to owning a Condo
Question 2.
a) List the factors to be taken into consideration while buying hosting space on a web server. [Say – 2016] (2)
b) What type of web page designing is called responsive web design? (1)
Answer:
a) It depends upon the storage space needed for hosting, the number of visitors expected to visit, etc.
b) Responsive web design means the home page of the website is displayed differently according to the screen size of the browsers window (mobile phone, palmtop, tablet, laptop, and desktop) we used.
Question 3.
An example of a virtualization software is ………………. [March – 2017] (1)
Answer:
VMware / Virtualbox / Free VPS / Usermode Linux / Microsoft Hyper-V
Question 4.
Discuss steps involved in registering the domain name of your school web site. [March – 2017] (2)
Answer:
Millions of websites are available over Internet so that, our school website must be registered with a suitable name. Domain Name registration is used to identify a website over Internet. A domain name must be unique(i.e. no two website with same name is available). So we have to check the availability of domain name before we register it, for this www.whois.net website will help. If the domain name entered is available then we can register it by paying the Annual registration fees through online.
Consider a Post Office, it has two addresses one string address (Irinjalakuda) and one numeric(pin) code (680121). Just like this the website has also two addresses a string address for example www.agker.cag.gov.in and a numeric address (http:/ /210.212.239.70/). We are following string address, hence this domain name has to be connected to the corresponding IP address of the web server. This is done by using ‘A record’(Address record) of the domain. ‘A record’ is used to store the IP address and the corresponding domain name.
Question 5.
What is the advantage of using SFTP protocol in FTP software? [Say – 2017] (3)
Answer:
Then FTP client software helps to establish a connection between the client computer and the remote server computer. Unauthorised access is denied by using username and password hence secure our website files for that SSH(Secure Shell) FTP simply SFTP is used.