Information and Communication Technology 4IT1 | Paper 1 Mock 01 | Written Paper 1

(a) Reposting a screenshot can lose the original author/account, publication date/time, URL/link, surrounding caption/context, and evidence or references. Any two. [2]

(b) Search distinctive words from the claim, use reverse-image search on the screenshot or video image, then trace links/accounts back to the earliest identifiable post and check its publisher and date. [3]

(c) Warning signs include no named qualified author or health organisation, no evidence/research references, a promise of a guaranteed or instant cure, pressure to buy or urgently share, or contradiction by reliable health sources. Any two developed signs. [4]

(d) Inaccurate medical information may cause people to delay effective treatment or ignore professional advice. They may spend money on ineffective products, and harmful actions can spread quickly. It can also cause anxiety, mistrust or conflict. Any two developed consequences. [4]

(e) Immediate removal can limit harm and further sharing, especially where a post is clearly dangerous or fraudulent. However, automatic removal could wrongly suppress legitimate discussion or new evidence. Platforms should use expert checking and a clear appeals process. A balanced conclusion is to remove or limit clearly harmful false claims promptly, but label, review and permit appeal for genuinely disputed content. [5]

(a) The router directs data between the science-fair network and the internet. [1]

(b) The switch provides extra wired connections for the server and router. [1]

(c) A wired server connection is stable and reliable, so results are less likely to be interrupted by wireless interference or range problems. [2]

(d) A separate guest wireless network keeps visitor smartphones separate from the student and server network, reducing unauthorised access to internal devices and data. [2]

(e) Possible causes include overloaded wireless bandwidth from many smartphones and insufficient internet bandwidth. Too many devices connected to the router/access point or wireless interference are also valid. [2]

(f) Record the number of connected devices and webpage response time, then compare quiet and busy periods. This provides evidence of whether demand is linked to poor performance. Router logs or speed tests are also valid evidence. [2]

(a) Source code is the instructions written by a programmer in a high-level programming language before translation. [2]

(b) The compiler translates source code into machine/object code, checks for syntax errors during translation, and produces code used to create an executable program. [3]

(c) Theatre staff would normally receive the executable file, because this is the completed program they can run. [1]

(d) Testing identifies errors before real bookings are affected. It checks calculations such as total cost, checks that validation rejects invalid seat numbers/data, and confirms reliable operation with expected inputs. Any two explained points. [4]

(e) Valid test-data examples include number of tickets, performance date, seat number, customer name and payment reference. Any two. [2]

(a) This is a local area network (LAN) [1] because devices are within one clinic/building [1] and use local wired/wireless links rather than a wide geographical area. [1]

(b) Nurses could use a touchscreen keyboard, on-screen forms/drop-down lists, stylus, microphone with speech recognition, approved document-image camera, or connected barcode scanner. Any three. [3]

(c) Create an individual account for every staff member, [1] requiring a password or multi-factor authentication. [1] Put reception staff in a reception role/group, [1] with access to appointments/contact details but denied access to clinical notes. [1]

(d) A server stores files centrally, [1] so authorised staff access the current record from different network devices. [1] Backups, updates and security are managed centrally, and failure of one reception computer does not lose the records. [1]

(e) Include scheduled automatic backups, an off-site/secure-cloud copy, encryption of backup files, restore testing, several versions, and restricted access to backup media. Any three. [3]

(a) Visitors with regular internet access are the three device groups: \[31+27+14=72\] Therefore, 72 visitors have regular internet access. Equivalently, \(80-8=72\). [2]

(b) Smartphone using mobile data is most likely to make a large video slow. Its 8 Mbit/s speed is the lowest non-zero speed shown, so a large video will take longer to download or buffer. [3]

(c) Provide a text-only or low-image page to reduce downloaded data; compress images/use smaller images; offer a small downloadable PDF for offline use; and avoid automatic video playback while providing a transcript. Any two described methods. [4]

(d) Eight surveyed visitors have no regular internet access. Others may lack a suitable device, money for mobile data or digital skills. They could not independently obtain event times or booking information, creating unequal access to the service, which is digital exclusion. [4]

(e) Digital alternatives include an email newsletter, library social-media account, messaging-app channel/group, QR code linking to a downloadable guide, or an electronic noticeboard in the library. Any two. [4]

(a) Without the VPN, other users on the public wireless network may monitor traffic. Data packets could be intercepted, allowing unencrypted video or login information to be read or stolen. [3]

(b) The VPN converts the video data into ciphertext before it leaves the laptop. An interceptor does not have the encryption key needed to read it. The intended server or VPN endpoint decrypts the data at the other end. [3]

(c) Confirm that the VPN is connected, check that the wireless network name is trusted, and verify the office server URL or certificate. Updated security software, multi-factor authentication and locking the laptop when unattended are further suitable checks. [3]

(d) A checksum is the appropriate method. A checksum calculated at the sender and receiver can be compared to detect whether the video file was altered during transfer. A password controls access, while a backup provides another copy; neither specifically detects file alteration in transit. [2]

(a) Features suggesting an official council result include a .gov domain, the council named as publisher, an HTTPS address, or a verified official-organisation description. Any two. [2]

(b) Search for a relevant phrase such as safe cycling routes, use the search engine date/time filter, and select results from the past year or set a custom recent range. [3]

(c) Identify the copyright owner/licence and check that it permits copying or reuse. If no suitable licence is shown, request permission. Give attribution where the licence requires it. Any two developed checks. [4]

(d) A cached page may be out of date. Routes, road works or safety advice could have changed, so relying on it alone could give users inaccurate or unsafe information. [3]

(e) Use a responsive layout so content fits smartphones and laptops; provide alternative text for maps/images for screen readers; use high contrast and readable font sizes; provide captions/transcripts for video; or provide a low-data text version for slow networks. Any two described methods. [4]