CompTIA Updated FC0-U61 Exam Questions and Answers by may

Dumpster diving is a technique used by attackers to obtain sensitive information from discarded documents, such as passwords, account numbers, or personal details. This information can be used to breach the confidentiality of an organization or an individual. Confidentiality is the principle of protecting information from unauthorized access or disclosure. To prevent dumpster diving, documents containing confidential information should be shredded or securely disposed of. References : The Official CompTIA IT Fundamentals (ITF+) Study Guide (FC0-U61), page 206.

A website that is not secure means that the connection between the user’s browser and the web server is not encrypted or authenticated. This can expose the user’s data to interception, modification, or impersonation by attackers. One way to secure a website is to use HTTPS (Hypertext Transfer Protocol Secure), which is a protocol that encrypts and verifies the data exchanged between the browser and the server. HTTPS relies on certificates, which are digital documents that contain information about the identity and public key of the website owner. Certificates are issued by trusted authorities called certificate authorities (CAs), which verify the legitimacy of the website owner before issuing a certificate. When a user browses to a website that uses HTTPS, the browser checks the certificate to ensure that it is valid, signed by a CA, and matches the website’s domain name. If any of these checks fail, the browser will display a warning message that the site is not secure, and advise the user not to proceed or enter any sensitive information.

Personally Identifiable Information (PII) refers to data that can be used to identify, contact, or locate a single person, or to identify an individual in context. A full name and date of birth are classic examples of PII because they can directly identify a person. Other options listed may relate to a person's life but do not specifically and directly identify an individual in most contexts.References: The definition and examples of PII are part of data privacy topics covered under the CompTIA IT Fundamentals, which discusses security measures and identification data types.

 A kilobyte is a unit of digital information that equals 1,024 bytes. A byte is the smallest unit of data that can be stored or processed by a computer. A kilobyte can store a small amount of text, such as a few sentences or a paragraph. Storage devices, such as hard disks and flash drives, use kilobytes and other larger units, such as megabytes and gigabytes, to measure their capacity and performance. References: The Official CompTIA IT Fundamentals (ITF+) Study Guide (FC0-U61), page 38.