Mark Scheme 5

5. Professional photography for family events
(a) (i) Define the term “picture resolution”. [2]
Answers may include:
 the number of dots, or pixels, used to create or display an image
 higher resolution means that more pixels are used to create the image/ more dots to print the image, resulting in a sharper image/improved image quality when printing
 resolution describes the detail in a picture
 resolution measured in pixels per inch (ppi) or dots per inch (dpi).
Award [1] for a basic comment about picture resolution with [1] for each additional comment up to a maximum of [2].

(ii) Identify two problems that will occur if Claudia uses photographs with a low resolution. [2]
Answers may include:
 photos will lack detail
 photos will be pixelated when enlarged
 videos containing Claudia’s photos will be pixelated when projected on a large screen
 customers will not be satisfied with the quality and will not use her services.
Award [1] for each problem up to a maximum of [2].

(iii) Claudia stores photographs and videos on the hard disk of her computer. Identify two additional locations where these files could be stored. [2]
Answers may include:
 external hard disk
 Cloud storage (accept names of cloud services e.g. iCloud, Dropbox etc.). Do not accept a generic reference to 'websites'
 a set of USB flash memory devices
 optical media (e.g. CD/DVD).
Award [1] for each location up to a maximum of [2].

(b) Claudia holds large amounts of personal information, photographs and videos from her customers. Explain three actions Claudia could take to protect the security of the information that she holds. [6]
Answers may include:
 save customer’s files in external devices (USBs, hard drives etc) and keep these devices in a secure place (locked up)  password protect the files/folders that contain customer’s information
 keep files in her laptop and never let other people use the laptop
 save files with coded names instead of using customer’s names for the files
 have a firewall installed to avoid hackers entering into her computer remotely
 if files are kept on her computer, use a secure password to unlock the system
 have her computer go on standby mode and request a password to re-use after a short period of inactivity
 encrypt the files / storage device so information is unreadable unless the decryption key/password is used
 use biometric authentication (e.g. fingerprint scanner, iris scanner) to control access.
Award [1] for each type of action identified, and [1] for an appropriate explanation of that action. Award a maximum of [6] for the response.

(c) Claudia needs to allow potential customers to see her work. She would like to be able to show these potential customers her best pictures and a list of former clients that they may contact. Some friends have suggested that she should create a website and other friends have suggested that she should open an account on a social networking site to post her work. Discuss these two alternatives as a way of showing her work to potential clients. [8]
Answers may include:
Website Social networking site
 website can be created completely and show her own design (eg background colour, fonts, layout)
 website can be redesigned if a new interface is needed and the URL shared via email or social networking sites with others
 an expert may need to be hired to create/maintain the website in order to show her work
 in order to show her work, may need to pay to host the site and to get an URL.
 social networking site has its own design but it is faster to post and share her work
 social networking site may have distractors on the page (eg ads, other likes) that diverts attention away from her work
 social networking sites are being used by many potential customers and no need to send them a link or URL in order to see her work
 social networking sites may be too public and pictures placed by Claudia may be misused by others
 potential clients may need to have an account with the social network in order to access her work.

In part (c) of this question it is expected there will be a balance in the ITGS terminology between IT technical terminology and the terminology related to social and ethical impacts.