Information and Communication Technology 0417/13 May/June 2024: question paper and mark scheme

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1 Pen drive 2 SSD

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2(a) Content/structure 1 2(b) Presentation/style 1 2(c) Behaviour/scripting 1

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3(a) Two from: 2 It is a security method to protect the resources/data that the user can access It is an authentication method Ability to pass through security information from initial login to host PC It requires no manual input from the user 3(b) Three from: 3 Voice recognition Fingerprint scanning Facial recognition Iris recognition Hand geometry recognition Typing recognition

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4 Max five from: 6 Positive Driving/travel becomes safer as the vehicle can react faster to situations Fuel/driving becomes more efficient as the vehicle finds the best way of getting from A to B Prevents human error Keeps drivers/others safe Can avoid accidents Max five from: Negative The vehicle/driver is totally dependent on the technology Very costly to repair/maintain Makes the vehicle more expensive to build/buy as it needs complex systems The device could stop working/misread/disconnect causing accidents/distractions for people Security problem of others/hackers gaining access to the vehicle can control its operation example: slam on the brakes Interference with the signal can stop the vehicle weather can interfere with the signal The driver must remain alert to override the system if needed Humans lose driving skills as no need to learn how to drive (1) Not as safe as the driver is less focused on the road

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5(a) Two from: 2 Uses a WIMP system It can be customised Don’t have to learn commands They are intuitive 5(b) Two from: 2 Dialogue based Gesture based Command line interface

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6(a) Max five from: 6 Advantages Reduced cost as less extra hardware/ dedicated software is needed Far simpler interface for employees Fewer issues with lip sync/video lag/buffering Can be used on more devices Increased privacy as there is no camera More flexibility for the employee as they do not need to be in front of a camera Max five from: Disadvantages Requires internet connection and it must be stable/reliable Cannot see the body language of the people in the conference Cannot tell if the employees are paying attention/or even there Fewer features than video-conferencing Less personal as you cannot see the person 6(b) Max three from: 4 Hardware Camera Monitor Microphone Speakers Router Max three from: Software Software/hardware drivers Video conferencing software CODEC Echo cancelling software

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7(a) Two from: 2 Must contact the copyright holders She must ask permission to use the material She should acknowledge whether material was copyright free or not She should acknowledge the sources for the material 7(b) Three from: 3 Users must not lend/rent/sell the software to other people User must not install the software on a network when other users can access it unless it is a network version Users must not modify/plagiarise the software Must not use coding from the software in your own software 7(c) Three from: 3 Prevents theft of intellectual material Protects the copyright of the owner of the software Prevents plagiarism To ensure people are rewarded for their endeavours

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8(a) Two from: 2 It’s a computer system It can simulate human intelligence Mimics human problem solving/decision making/behaviour It can learn from previous decisions 8(b) Four from: 4 It targets advertisements allows advertisers to attract more relevant customers But targetted adverts may not be relevant/wanted Influences the user to buy articles by advertising by analysing the items they searched for/interests of users on the site/comments made by users Allows for better content on the site as customised to the user Makes it easier to locate/communicate with people therefore improve communication skills It can recognise people’s faces/tag people in photographs posted to reduce the user’s work in doing this It can easily detect spam/inappropriate material therefore making the social media site safer

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9(a) Three from: 3 User interface Inference engine Knowledge base Rules base 9(b) Two from: 2 Explanation system supplies/gives information/data to the user about the solution to the problem It describes the decision making process step by step Clarifies the structure of the solution to the problem

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10 Four from: 4 The sensor may be above the obstacle and may not detect it Sometimes they detect transient/moving obstacles this can cause the cleaner to get confused The home owner becomes too reliant on the technology The sensors can become obstructed by dirt/dust therefore giving false readings/stop working It cannot clean the whole room due to sensing objects Does not know which parts it has cleaned or not

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11(a) Parallel running is running both systems together until the new system works 2 properly/fully implemented When the new system works the old system is removed 11(b) Max four from: 5 Benefits If the new system fails the old one is still available for a time to be used Less data will be lost during implementation Training is gradual New system can be easily tested with live data Max four from: Drawbacks Implementation is expensive as two sets of staff are needed Two systems are needed therefore more expensive There will be duplication of data entry which can cause differences in the output of the two systems More time consuming to enter data into two systems Two systems take up more physical space

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12(a) Two from: 2 Keylogging is a software/hardware device It records/sends to a third party every keystroke on your keyboard It can gain fraudulent access to passwords/confidential information. 12(b) Two from: 2 Install anti-keylogging/anti-malware/anti-spyware software Check the computer system before entering confidential data Update the computer system regularly

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13(a) Two matched pairs: 4 Check digit An extra digit added to a number which is calculated from the other digits, this ensures the rest of the number is correct Length check Checks that there are only 12 characters Presence check Checks that the number exists is the table/not a null value Type check Checks that the data entered is an integer Character check Checks that the data entered are only numbers 13(b) Max two from: 4 Advantages Faster data entry Fewer data entry errors are made Max three from: Disadvantages The scanner could misread the barcode whereas people typing in the data are more likely to check Extra hardware is required increasing costs If the bar code is damaged/folded/missing then the data may not be read properly More reliant on the technology If the barcode is incorrect the scanner would not know whereas a human could see the difference 13(c) Three from: 3 Magnetic stripe reader Radio Frequency Identification reader Optical Mark Reader Optical Character Reader QR scanner Biometric scanner Magnetic Ink Character Reader

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14(a) Three from: 3 Automatic reply to messages Auto-forward and redirection of messages Facility to send copies of a message to many people at once Automatic filing and retrieval of messages Addresses can be stored in an address book and retrieved instantly Notification if a message cannot be delivered Emails are automatically date and time stamped Signatures can be attached Attachments can be sent 14(b) Two from: 2 Allows the user to send a message privately to some of the recipients Any recipients on the bcc line of an email are not visible to other recipients of the email Security method as emails are hidden in bcc list