Methods of communication

The governing concept is matching the communication method to the audience and confidentiality of the information. A password-reset notice is specific to one account and may contain private security details, so it should be sent individually through a secure channel. An exam date, holiday announcement, or general staff rule is relevant to many people and suits group communication. Therefore, option D is the appropriate choice.

The governing concept is choosing communication according to the audience and purpose. A public announcement is suitable for information shared by everyone, but a student who has a special arrangement may need a separate, private message explaining exactly what to do. Therefore, option B is correct. The other choices describe common information for a group, so an additional individual message is not normally necessary.

The governing concept is matching the communication channel to the sensitivity of the information. A temporary login code is private authentication data linked to one account, so it should be delivered only to the intended person through a secure individual channel. Option D is correct. A holiday, public-event date, or general school rule is ordinary information that can safely be shared with a group.

The governing concept is real-time digital communication. During a video call, audio and video are transmitted through digital networks so that participants can see and respond to one another during the same session. Option A is correct. Paper-based and printed communication depend on physical documents and are not inherently immediate or interactive. A video call also clearly uses technology, so option D contradicts the situation.

The governing concept is digital information sharing through a website. Publishing the timetable online allows many students and families to view the same schedule from a suitable device, improving access and reducing dependence on receiving separate paper copies. Option A is correct. The purpose is not decoration, privacy, or cancellation; in fact, a public timetable communicates important examination information to its intended users.

The governing concept is choosing a communication channel according to purpose, formality and record-keeping needs. Email is appropriate for a formal application because it supports a clear subject, respectful structure, attachments and a retrievable record for the principal. A one-word reply, instant location sharing and casual group discussion are faster and more natural in messaging apps. Thus option B is the best choice.

Asynchronous communication does not require both participants to be available simultaneously. An email can be composed now, delivered through the internet, and opened or answered later; therefore option B correctly explains its timing. Email can contain text, images, or files, so A is too narrow. It uses the internet, and it is not automatically deleted, making C and D incorrect.