Tessy runs an online language school. Her tutors use laptop computers at home, while many learners use a smartphone on public Wi-Fi. A lesson involves a 45-...
Question 1 Report
Tessy runs an online language school. Her tutors use laptop computers at home, while many learners use a smartphone on public Wi-Fi. A lesson involves a 45-minute live speaking activity, a short pronunciation recording and a worksheet containing personal progress information. During a trial, several learners reported that video froze when other people were using the same network. Tessy is choosing between video conferencing software, email, a learning-platform message board and a shared cloud-storage folder. She wants the communication method to be reliable, affordable and suitable for learners in different time zones.
(a) Which communication method is most suitable for the live speaking activity? Give one reason. [2]
(b) Describe two factors that could cause the video conference to freeze for a learner. [3]
(c) State three reasons why a message board could be more suitable than live video for posting the worksheet. [4]
(d) Explain why Tessy should use password-protected cloud storage rather than attaching every learner's progress file to an email. [7]
Answer Details
(a) Video conferencing software is most suitable because it provides live two-way audio and video, allowing immediate speaking practice and feedback. [2]
(b) Video may freeze if available bandwidth is low, if many devices are sharing the same Wi-Fi connection, or if the wireless signal is weak or intermittent. Network congestion, high latency, or an old low-specification device can also prevent smooth video processing. [3]
(c) A message board is asynchronous, so learners in different time zones can access the worksheet when convenient. It uses less bandwidth than live video, one copy can be posted to the whole class, and the worksheet remains available for later reference. Learners can also ask and answer questions in one discussion thread. [4]
(d) Password-protected cloud storage requires authorised users to log in. Permissions can limit each progress file to the tutor and its individual learner, reducing the chance of sending personal progress information to the wrong email address. Access can be removed when a learner leaves. The latest version is kept in one controlled location instead of leaving multiple uncontrolled inbox copies, and backup or version history can recover an altered or deleted file. [7]
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