Flashcards
ICT networks and online services exam questions
Cards in this deck (12)
- 1Describe 2 differences between fibre optic cables and copper cables for connecting to the Internet (2 marks)Copper uses electrical signals; needs a repeater every 100 m or so; limited in bandwidth; prone to electrical interference (such as lightning).
Fibre-optic uses light; the signal does not weaken much over distance; it is not prone to electrical disturbance; harder to hack; high bandwidth. - 2State two uses of GIS (2marks)(Two from) archaeology, town planning, land surveying, agriculture.
- 3Explain advantages and disadvantages of using Bluetooth to connect devices (4 marks)No need for wires; many devices can connect automatically; signal only travels a short distance; may be hacked by others nearby.
- 4Jess wants to watch a video online. Explain why fibre optic cable is better than dial up for this activity ( 3 marks)With fibre-optic the video would arrive smoothly owing to the high bandwidth available whereas with dial-up the data would arrive so slowly that there would be long pauses while enough data was buffered to show the next screen.
- 5Identify 2 advantages in using wireless network rather than a wired one (2 marks)No wires to sink/conceal
Can work anywhere in the office even close by
Easier o keep offices clean
Fewer trailing wires to trip over - 6A company has wireless network installed. Describe one reason why they might be concerned about the security of their data (1 mark)Teacher Input…
Hacker may gain access to the network and steal data - 7Describe the differences a user would find between using dialup or broadband to access the Internet ( 6 marks)Dial up- Use a modem
-Needs a telephone line
-Coverts signal that can be passed along a telephone line
-Time is spent making the connection by dialling the number
-Data transfer speeds are slow
-Pages appear very slowly when browsing the internet
-Takes longer to upload files compared to broadband - 8Describe 2 differences between fibre optic cables and copper cables for connecting to the Internet (2 marks)Broadband- Uses a cable connection or ASDL
-Can use the telephone at the same time
-Much high transfer data rate compared to dialup
-Can watch listen to video in real time
-Can download large music files in a shorter time
-Can use webcam services - 9Describe the term e-commerce (1 mark)E-commerce is buying or selling goods or services over the internet.
- 10List the process involved with booking online holidays ( 7 marks)To carry out online booking you would:
1. browse websites to find one that provides what you want (e.g. ‘Cheap holidays in Spain 2011’)
2. search the website for your specific requirements (e.g. self catering, near beach)
3. choose the date, number of people, number of rooms and so on
4. proceed to a ‘checkout’
5. choose a method of payment
6. enter the details of credit or debit card
7. enter information about the address where the tickets are to be delivered (or often you print off your tickets and travel plans yourself or they are sent to you by email). - 11An online shopping account is being set up and a password has to be verified. Explain the process of verification ( 2 marks)Verification involves the data being entered twice and the computer checking the two entries match. This ensures that the data has been entered correctly.
- 12State two types of bank card that can be used both at a shop’s checkout and at a bank’s cash point. (2 marks)Debit and credit card
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- Flashcards on Untitled, created by jeror001 on 26/09/2014.
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