Health Safety and Security at Workplace

Antivirus software scans for, detects, blocks, quarantines, and sometimes removes viruses and other malware. It helps reduce digital security risks, although updates and safe user behaviour are also important. It is not a physical cleaning tool, file-renaming tool, or device for replacing keyboard keys.

Direct answer: A is correct. E-waste means discarded electrical and electronic equipment, such as computers, phones, chargers, and other devices. Some electronic items can contain substances that are harmful if they are released into soil, water, or air. They may also contain useful materials such as metals that can be recovered through proper recycling. Safe management involves collecting e-waste separately, removing or protecting personal data when appropriate, sending it to authorised handlers, and using controlled dismantling and recycling processes. Option A is correct because these steps protect human health and the environment while recovering useful resources. Option B is wrong because destroying valuable metals wastes resources and is not the purpose of recycling. Option C is wrong because open burning can release harmful smoke and pollutants. Option D is wrong because mixing e-waste with ordinary household waste makes safe treatment difficult and may contaminate disposal sites. Memory cue: separate, secure, send for authorised recycling—never burn or casually dump e-waste.

The student should avoid retaliation, preserve messages and screenshots, note relevant usernames or dates, and tell a parent, teacher, counsellor, or another trusted adult. Evidence supports appropriate reporting and assistance. Blocking or reporting the account may also be suitable after evidence is saved. Deleting evidence or sending threats can worsen the situation.

A strong password should be sufficiently long, unique, difficult to predict, and kept confidential. A passphrase or a suitable mixture of character types can improve resistance to guessing, but no password should be shared casually. Names and very short passwords are predictable. Multi-factor authentication adds protection where available. Therefore, A is correct.

Information such as an address, phone number, password, identity details, or bank information may be used for fraud, identity theft, unwanted contact, or account compromise if exposed to an untrustworthy person. Online posts may also be copied or forwarded. People should share only necessary information through trusted channels and protect sensitive credentials. Hence, A is correct.

The internet connects users to online information, communication services, learning resources, and many other facilities. Searching for reliable information and communicating through email or messaging are valid uses. Shutting down a device is a local computer operation, while folding paper and repairing a chair are physical activities unrelated to internet use. Hence, option A is correct.

A password is a secret used to prove a user’s identity. If it is shared, another person may enter the account, read private information, change settings, send messages, or misuse the account. Sharing cannot make a computer faster, enlarge a screen, or automatically print a file. Strong passwords should be kept confidential.

Trusted, updated antivirus software can scan files and programs and warn about or remove many malicious threats. It is one part of protection; safe browsing, updates, backups, and careful handling of attachments are also important. Opening every file, sharing passwords, and clicking unknown links increase risk rather than preventing viruses. Therefore, A is correct.

A public computer may be used by many people after you. Logging out closes your session and reduces the chance that another user will read private information, send messages, or change account settings. Saving a password, leaving the account open, or opening unknown files creates security or malware risks. Therefore, logging out is the safe action.

Using the operating system’s Shut Down command closes programs and gives the computer a chance to save information and finish tasks safely. Pulling the power cable can cause unsaved work to be lost and may risk file-system damage. Hitting the screen or throwing the keyboard is unsafe and does not shut down the system properly. Thus, A is correct.

Shut down is the operating-system command and process used to close programs and turn off a computer safely. Copy duplicates data, Rename changes a file’s name, and Paste inserts copied or cut content in a new location. None of those actions turns off the computer. Therefore, the correct term for proper computer power-off is Shut down.

A strong password should use a suitable length and a mixture of uppercase and lowercase letters, numbers, and special symbols. This increases the number of possible combinations and makes guessing or automated attacks more difficult. A name, birth date, or repeated digit is predictable personal information or a simple pattern, so those choices provide much weaker protection.

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.