got wrong lots+99% of times Flashcards
(32 cards)
the most appropriate device to input the following:
information from the chip in an electronic passport
RFID reader
the most appropriate device to input the following:
text from an id card
Optical Character Reader
the most appropriate device to input the following:
account details from the front of a credit card at an EFTPOS terminal
Chip reader
the most appropriate device to input the following:
account details from the back of a credit card at an EFTPOS terminal
Magnetic stripe reader
define phising
send emails to fraudulently obtain another person’s bank details
define pharming
illegally installing malicious code which redirects a person to a fraudulent website with the purpose of obtaining that person’s bank details
HILARY
PHISING
pharming on a large scale
websites
define smishing
sending text messages to fraudulently obtain another person’s bank details
Describe the details of computer addresses that are stored by a router
Stores IP addresses
IP address is a unique identifier set up by network manager/ISP
Can change but should match the network it’s on
IP address consists of 4 numbers separated by full stops
Stores MAC addresses
6 pairs of hexadecimal digits
MAC address is usually hard coded by manufacturer, never changes
(c) Explain how Optical Character Recognition is used before the computer processes the data
car plate
- camera takes image of number plate
- stores in file
- Software identifies number plate in image and crops
- OCR software converts into digital data
what is URL
Uniform Resource Locator
e.g dogshite.com
reduce the amount of excess information on search
Used advanced searches Use Boolean operands… …use + and – to limit results to only key words Use speech marks around key phrases Use the specific web address
the most appropriate device to input the following:
data written in special ink at the bottom of bank cheques
Magnetic Ink Character Reader/Optical Character Reader
the most appropriate device to input the following:
information on the label of a supermarket product
bar code reader
the most appropriate device to input the following:
shaded in boxes on a student’s examination answer sheet
Optical Mark Reader
the most appropriate device to input the following:
debit card details input at an ATM
magnetic stripe reader/chip and PIN reader
items of hardware which would enable the computer to be connected to a local area network
– hub
– switch
– NIC
– bridge
Name one item of hardware which would enable the network to be connected to the internet
router/modem
what is GPS
Global Positioning System
– space-based navigation system
– typically four satellites must be visible to the receiver
– calculates the distance from a receiver to the satellite
– calculates the position of the receiver
Compare and contrast the use of magnetic tapes with removable magnetic disks to make network
server backups
tapes – cheaper per bit – more compact for the same memory – less prone to data loss/mechanical failure – slower to access lost work – slower to restore the system
both
– store large amounts of data
– fast data transfer rates
– can be stored well away from the server
There are many microprocessor controlled devices in the modern home. Discuss the effects of
these on people’s lifestyles.
😀microprocessor controlled devices do housework
👉dont need to do things manually
👉 be in house when cooking/washing clothes
😀 greater social interaction
😀 more leisure time/ do other things
👉leave home to get fit
👉go shopping
👉work at any time
😀 able to do other things when convenient
😀 encourage a healthy lifestyle
Negative
😡 unhealthy eating bc dependency on ready meals
😡 laziness/lack of fitness
😡 manual household skills are lost
😡 microprocessor controlled burglar alarm provides a sense of security
pros/cons of WLAN than LAN
😀 cheaper as less cabling is required
😀 new workstations can be sited anywhere
😀different devices can be connected easily
😡 limited area of network 😡 strength of signal is weaker 😡 easier to hack into/less secure 😡 physical obstacles can interfere with signal/can cause disconnection 😡 slower data transmission rates
(a) Describe what an RFID chip consists of
– an integrated circuit
– which contains aerial
– which receives and transmits data
