Health Safety and Security at Workplace

A password is a secret credential that helps prove a user’s identity. If it is shared, another person may enter the account, read private information, change settings, or misuse the account. Therefore, keeping it confidential protects the account. The other choices are unrelated to password security and do not explain why secrecy is necessary.

Cyber safety means using computers, phones, networks, and online services in a secure and responsible way. It includes protecting passwords, avoiding suspicious links, respecting privacy, and reporting harmful activity. Driving, planting trees, or measuring a playground may be useful activities, but they are not the meaning or main area of cyber safety.

An unknown link may lead to a fake login page, malware download, scam, or website designed to steal personal information. A careful user checks the sender and destination before opening it and avoids entering credentials on suspicious pages. The other options describe impossible or unrelated results, so option A is the only safety-related answer.

Personal information is data that identifies a person or can affect that person’s privacy or security. A home address reveals location, and a password protects access to an account; both therefore require careful handling. General weather and public news are normally not personal details, while blank paper contains no identifying information.

Before confirming a digital payment, the user should check the recipient’s name, account or address, amount, and any confirmation screen. This helps prevent sending money to the wrong person and can reveal a scam. Secret numbers must never be shared, unknown messages should not be trusted, and an account should not be left open on a shared device.

A computer virus is a type of malicious program that can copy itself, spread to other files or systems, corrupt data, slow the computer, or interfere with normal operation. It cannot perform physical activities such as cleaning a classroom, buying paper, or cooking food. Safe downloads, updates, and security software help reduce the risk.

Antivirus software scans files, programs, and sometimes system activity for known or suspicious harmful software. It can warn the user, quarantine a threat, or remove it, although no single tool guarantees complete protection. Coloring pictures, joining chairs, or physically cleaning a monitor are not functions of antivirus software.

Software updates may add useful features, improve performance and compatibility, and fix security weaknesses discovered after release. An update may require a restart, but it does not always shut down the computer permanently, delete files automatically, or break the keyboard. Installing updates from legitimate sources is an important safe-computing practice.

A backup is an additional copy of important files kept separately from the working copy. If the original is deleted, damaged, lost, or encrypted by malware, the backup can help restore the information. A good practice is to back up regularly and protect the backup. Painting a computer, washing a mouse, or tearing paper has no relation to data recovery.

To judge online information, examine who published it, when it was published or updated, what evidence it gives, and whether other trustworthy sources agree. A dramatic title or forwarded message is not proof. Opening an unknown link can create security risk, and believing every message ignores the possibility of errors, bias, or misinformation.

Digital etiquette, also called netiquette, means behaving respectfully and responsibly while communicating or working online. It includes using polite language, respecting privacy, avoiding harmful posts, checking information before sharing, and considering how messages affect others. Running, folding paper, or hiding electricity has no connection with standards of conduct in digital communication.

Using polite and clear language supports respectful online communication and reduces misunderstanding. A responsible sender also checks facts, avoids insults, and does not pressure others to reveal private information. Insulting words can harm people, false information can mislead them, and unnecessary requests for personal details can threaten privacy. Therefore, option A is the correct behavior.

A public computer can be used by many people, so leaving an account signed in may allow the next user to read messages, change settings, or misuse stored information. Signing out removes the active session; users should also avoid saving passwords and clear sensitive information when appropriate. Writing down a password, leaving the account open, or opening unknown files is unsafe.

Two-step verification requires a password plus another proof, such as a code from an authenticator, a security key, or an approved device. If someone learns the password, the second step can still block unauthorized access. It does not delete the account, change the computer’s weight, or make a printer faster; its purpose is stronger account protection.

Spam is unsolicited digital communication sent in bulk or without a useful reason for the recipient. It may contain advertisements, scams, misleading claims, malware, or links asking for information. A genuine teacher’s instruction, a notebook, and an attendance record are not automatically spam. Users should avoid suspicious attachments and report or delete unwanted messages carefully.

Before posting or forwarding information, check whether it is accurate, necessary, appropriate, and safe to share. Consider whether it contains private details and whether the recipient is trustworthy. Speed, fear, or the presence of a password is not a valid test of responsible sharing. Online content can spread quickly and may be difficult to remove later.

A digital footprint is the broad trail of data created by a person’s online activities. It can include posts, comments, searches, purchases, account actions, and information collected by websites or services. Browser history is only one possible part of this trail, not the whole concept. A screen icon and a physical footprint are unrelated meanings of the word footprint.

HTTPS indicates that the connection between the browser and website is encrypted, and a lock indicator can help users inspect connection details. These signs protect the connection but do not prove that every website or offer is honest, so users must still check the domain and avoid suspicious requests. Colors, attractive wording, and free-gift promises are not security evidence.

Before starting a computer, check that the power source, power cable, monitor, and required peripherals are connected safely and correctly. This prevents avoidable startup problems and reduces the chance of unsafe handling. Deleting files, sharing a password, or tearing paper in a printer is unnecessary and potentially harmful, so none of those choices is a proper first check.

Muting the microphone while listening prevents background sounds such as traffic, typing, or conversations from disturbing the class. When the teacher invites a learner to answer or ask a question, the learner should unmute, speak clearly, and mute again afterward. Thus, muting is most useful when the learner is not speaking.