Network technologies are applied in many areas of everyday life - NSC Information Technology - Question 3 - 2017 - Paper 2
Question 3
Network technologies are applied in many areas of everyday life.
3.1 Computers used for administrative tasks are normally connected in a network. An Ethernet LAN co... show full transcript
Worked Solution & Example Answer:Network technologies are applied in many areas of everyday life - NSC Information Technology - Question 3 - 2017 - Paper 2
Step 1
3.1.1 Name ONE type of cable that is commonly used in an Ethernet network.
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One common type of cable used in an Ethernet network is a UTP (Unshielded Twisted Pair) cable, specifically CAT 5 or CAT 6.
Step 2
3.1.2 Which topology allows every computer to be connected with its own cable to a switch?
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The topology that allows each computer to be connected with its own cable to a switch is the Star topology.
Step 3
3.1.3 Which network protocol would be used to: (a) Access the Internet
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(a) The network protocol used to access the Internet is typically TCP/IP (Transmission Control Protocol/Internet Protocol).
Step 4
3.1.3 Which network protocol would be used to: (b) Browse web pages?
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(b) To browse web pages, the HTTP (Hypertext Transfer Protocol) or HTTPS (HTTP Secure) protocols would be used.
Step 5
3.2 What is the benefit of using a virtual private network (VPN)?
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The benefit of using a VPN is that it creates a secure connection over a public network, enhancing privacy and security while allowing users to access resources remotely.
Step 6
3.3.1 What is this type of data capturing called?
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This type of data capturing is called 'invisible data capturing.'
Step 7
3.3.2 Give ONE example of a real-life situation in which this type of data capturing takes place AND name the type of information that can be captured.
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An example of a real-life situation is when users make online purchases using credit cards. The type of information that can be captured includes personal purchase history and credit card details.
Step 8
3.3.3 The captured data is often used for user profiling purposes. What is user profiling mostly used for?
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User profiling is mostly used for targeted marketing purposes, allowing businesses to tailor advertising and promotions to individual user preferences.
Step 9
3.4 Name THREE types of code a website can implement to provide interactivity.
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Three types of code that a website can implement to provide interactivity are:
JavaScript
AJAX
PHP
Step 10
3.5.1 What is a cookie?
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A cookie is a small text file stored on the user's local computer that is used to save user settings and preferences for a website.
Step 11
3.5.2 What is the effect of deleting cookies for the user?
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The effect of deleting cookies for the user includes losing saved preferences, causing the user to be prompted to set default settings again when visiting a website.
Step 12
3.6 State TWO disadvantages of using VoIP.
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Two disadvantages of using VoIP are:
Both parties need a stable internet connection.
Call quality may vary based on internet speed, potentially leading to poor call experiences.
Step 13
3.7 What is the purpose of a GPS?
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The purpose of a GPS (Global Positioning System) is to provide location data for devices, enabling navigation and tracking of positions.
Step 14
3.8.1 Explain what DRM software is.
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DRM (Digital Rights Management) software refers to any software that uses encryption to manage access rights to digital content, preventing unauthorized copying and distribution.
Step 15
3.8.2 Give ANY ONE area of application of DRM software.
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One area of application of DRM software is in the distribution of digital music, where it prevents unauthorized sharing and copying of tracks.
