Oxford Cambridge and RSA
GCSE (9-1) Computer Science
Computer Systems
J277/01
Topic: Unit 1.3 The Internet & The Cloud
Time allowed: 30 minutes
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First name Last name
INSTRUCTIONS INFORMATION
Turn over
1
(a) Which of the following statements best describes the Internet? Tick (✓) one box.
[1]
Statement Tick (✓)
A private network used within one building.
A worldwide collection of inter-connected computer networks.
A collection of web pages found on the World Wide Web.
A wireless signal that connects laptops to printers.

(b) Explain why the Internet is considered a Wide Area Network (WAN).
[2]
2

When a user wants to access a website, they type a Uniform Resource Locator (URL) such as www.ocr.org.uk into their web browser.

(a) Explain why URLs are used instead of IP addresses to access websites.
[2]

(b) A Domain Name Server (DNS) is used to help the user access the website.
Describe the steps taken by the DNS to convert the URL www.ocr.org.uk into the website's IP address.
[4]

(c) If the DNS cannot find the IP address for the URL in its own database, state what action it takes next.
[1]
Turn over
3
A startup company, 'TechGen', has created a new website. They pay a third-party company to host the website on a Web Server.

(a) Define what is meant by a Web Server.
[2]

(b) A customer, Sarah, views the TechGen website on her tablet.
Identify which device is the Client in this scenario and explain its role.
[2]
4
[Image of cloud computing storage diagram]
A law firm has decided to move its file storage from a local server in their office to The Cloud.

(a) Define what is meant by The Cloud.
[1]

(b) Explain two benefits to the law firm of using the cloud for storage rather than a local server.
[4]
Benefit 1:
Benefit 2:

(c) Explain two drawbacks to the law firm of using the cloud.
[4]
Drawback 1:
Drawback 2:

(d) The law firm is concerned about data privacy. State one way the cloud provider can secure the data during transmission to ensure it cannot be understood if intercepted.
[1]
END OF QUESTION PAPER