ICT Digital Communication and Collaboration 3 — Questions and Answers
Question 1: Which of the following best describes end-to-end encryption in messaging apps like Signal?
- Messages are encrypted only while stored on the server
- Only the sender's device encrypts the message; the server decrypts it for delivery
- Messages are encrypted on the sender's device and can only be decrypted by the intended recipient's device (Correct answer)
- Encryption applies only to attachments, not to text messages
Correct answer: Messages are encrypted on the sender's device and can only be decrypted by the intended recipient's device
End-to-end encryption ensures that only the communicating users can read the messages — even the service provider cannot access plaintext content.
Question 2: What is a 'virtual whiteboard' tool such as Miro or MURAL primarily used for in remote collaboration?
- Scheduling team meetings across time zones
- Brainstorming, diagramming, and visual collaboration in real time (Correct answer)
- Managing project timelines and Gantt charts
- Tracking employee attendance and work hours
Correct answer: Brainstorming, diagramming, and visual collaboration in real time
Virtual whiteboard tools provide an infinite digital canvas for teams to brainstorm, map ideas, and collaborate visually during remote sessions.
Question 3: In a video conferencing tool, what does 'breakout room' functionality allow participants to do?
- Leave the meeting without notifying the host
- Split into smaller sub-groups for focused discussion within the same meeting (Correct answer)
- Record separate audio tracks for each participant
- Share their screen with only selected attendees
Correct answer: Split into smaller sub-groups for focused discussion within the same meeting
Breakout rooms divide meeting participants into smaller groups that can collaborate independently before reconvening in the main session.
Question 4: Which of the following is a best practice when using a shared team calendar?
- Keep personal appointments private and only add work meetings
- Add detailed descriptions to events so colleagues understand context (Correct answer)
- Avoid sharing your calendar with managers to maintain privacy
- Book meeting rooms without adding them to calendar invites
Correct answer: Add detailed descriptions to events so colleagues understand context
Adding clear descriptions, agendas, and relevant details to calendar events helps all participants prepare and reduces confusion.
Question 5: What is 'bandwidth' in the context of a video call, and how does it affect call quality?
- The physical size of the data packet; larger packets improve quality
- The amount of data that can be transmitted per second; insufficient bandwidth causes lag or dropped quality (Correct answer)
- The encryption strength used to secure the call
- The maximum number of participants allowed in a call
Correct answer: The amount of data that can be transmitted per second; insufficient bandwidth causes lag or dropped quality
Bandwidth determines how much data can flow between devices; when it is too low for a video call's requirements, quality degrades (pixelation, freezing, audio drops).
Question 6: A remote employee needs to access the company's internal file server securely from home. Which technology is most appropriate?
- Public Wi-Fi with a strong password
- VPN (Virtual Private Network) (Correct answer)
- FTP without authentication
- Shared cloud folder with open permissions
Correct answer: VPN (Virtual Private Network)
A VPN creates an encrypted tunnel between the employee's device and the company network, enabling secure access to internal resources remotely.
Question 7: Which netiquette rule is most important to follow when participating in a professional online discussion forum?
- Always post in ALL CAPS to emphasize your points
- Reply to every post to show engagement
- Stay on topic and keep posts relevant to the discussion thread (Correct answer)
- Use informal abbreviations to save time
Correct answer: Stay on topic and keep posts relevant to the discussion thread
Staying on topic ensures discussions remain useful and easy to follow; off-topic posts disrupt the thread and reduce the forum's value.
ICT Digital Communication and Collaboration 3
Which of the following best describes end-to-end encryption in messaging apps like Signal?