Health Safety and Security at Workplace

A clean, quiet, and suitable background helps classmates focus on the lesson and presents respectful online behavior. The camera should be used according to the teacher’s rules, with attention to privacy and appearance. Disturbing others, sending unknown links, or leaving an account open are unsafe or discourteous actions, not correct camera etiquette.

An attachment from an unknown sender may contain malware or a fake document designed to steal information. First check the sender, address, context, and message, and confirm through a trusted channel if necessary. Do not open it merely because it looks urgent, share a password, or forward it. If it remains suspicious, report or delete it.

Signing out ends the active session and helps prevent the next user from opening private messages, changing settings, or using the account. It is especially important on a shared or public computer. Signing out is normally done after work, not before opening the account or while typing a password. The chair-related option is unrelated.

A date of birth, name, phone number, or common word may be guessed from public information or tried by automated attacks. Such details should therefore be avoided. A stronger password is long, unique, and difficult to predict, with a suitable mix of characters when required. The other three choices generally improve password strength rather than weaken it.

Phishing is a social-engineering attack in which a message, website, or call pretends to be trustworthy. It tries to make a person reveal passwords, banking details, one-time codes, or other private information, or click a harmful link. It is not genuine teaching, screen cleaning, or ordinary legal communication. Suspicious urgency and unknown links are warning signs.

A screen lock requires authentication such as a password, PIN, pattern, or biometric check before the device can be used. This reduces the chance that another person will read files, messages, or account information when the owner is away. It does not enlarge pictures, increase sound, or print paper. A strong lock is one part of device security.

Safe online behavior means pausing before trusting a message, checking the sender and link, and avoiding unexpected requests for passwords or personal details. Sharing passwords, opening every link, or publicly exposing private information increases risk of fraud, malware, or identity misuse. Therefore, caution with suspicious messages is the responsible habit among the choices.

Checking the recipient address helps prevent sending private, incomplete, or sensitive information to the wrong person. Before selecting Send, verify the name, address, and copied recipients, especially when an autocomplete suggestion appears. This check does not change computer speed, color pictures, or turn off the keyboard; it protects communication accuracy and privacy.

Digital citizenship means using digital devices, networks, and online services in a responsible, safe, respectful, and informed way. It includes protecting privacy, following rules, communicating politely, checking information, and respecting others’ rights. It is not about living in a city, writing on paper, or purchasing a printer. Thus, responsible behavior online best expresses the meaning.

A photograph can reveal a person’s identity, location, or personal situation, so sharing it may affect privacy and dignity. Ask the person for permission and consider who needs to see it, particularly for children or sensitive situations. Sending it immediately, giving a false name, or hiding the source is not respectful or responsible digital behavior.

Digital messages can reach many people quickly, so forwarding an unverified claim can spread misinformation and create fear, confusion, or harmful decisions. Before forwarding, check the source, date, evidence, and whether trustworthy organizations support the claim. Incorrect forwarding does not repair a computer, renew a printer, or enlarge a classroom; its main consequence is information harm.

Correct posture keeps the back, neck, shoulders, and wrists in a more natural position and can reduce strain during computer work. The screen and chair should be positioned comfortably, and the user should change position and take breaks. Posture does not increase a password, delete files, or speed up a printer. Its main purpose is health and comfort.

Continuous screen viewing can contribute to eye tiredness, dryness, and discomfort. Short, regular breaks allow the eyes and body to relax; looking away into the distance and blinking normally can also help. Good screen habits do not involve sharing passwords, pushing equipment, or forwarding every message. Therefore, giving the eyes rest is the healthy choice.

An unknown sender cannot be assumed to be trustworthy. The message may attempt phishing, spread false information, request money, or contain a link or attachment carrying malware. The email should be checked carefully rather than opened or answered impulsively. Thus, option A gives the valid reason.

A public computer may be used by many people, and its browser can retain saved passwords or an active login session. The next user could open the account, read private information, or misuse it. Therefore, passwords should not be saved there and the user should sign out. Option A is correct.

A strong password is usually long and difficult to guess, using a varied combination of letters, numbers, and symbols where allowed. A name is predictable, sharing a password removes secrecy, and reusing one password increases the damage from a single breach. Hence, option A describes the good practice.

Two-step verification requires a second proof of identity after the password, such as a code from an authenticator or a registered device confirmation. If someone obtains the password, this extra check can still block entry. Shutting down a computer, changing a mouse, or printing does not provide this account protection, so A is correct.

Device and software updates commonly repair known security weaknesses, improve reliability, and may add useful features or compatibility. Delaying them can leave the device exposed to threats that an available patch could address. Updates do not change a chair, count paper, or hide sound, so option A is correct.

An urgent password request from an unknown sender is a common phishing warning sign. Riya should not use the embedded link or disclose her password; she should independently type the organisation's official web address or contact its known support channel. This verifies the request without trusting the suspicious message, so C is correct.

Unknown files or attachments may contain malware that runs when opened. Avoiding them, checking the sender, using updated security software, and scanning files reduces the chance of infection. Opening every attachment increases risk, while sharing passwords and stopping updates weaken security. Therefore, option A is the correct habit.