Your school is launching a major drive to embrace the digital era - NSC Information Technology - Question 6 - 2017 - Paper 2

Biometrics refers to the use of personal characteristics to authenticate the identity of a person. This includes unique physical traits such as fingerprints, facial recognition, and iris patterns.

A suitable example of biometrics in this scenario could be fingerprint recognition.

1. RFID cards can be lost or stolen, compromising security.
2. They can be cloned, allowing unauthorized access.

Virtual memory is a technique that uses hard drive space as an extension of RAM. This allows a computer to run more applications than its physical memory can support.

The operating system, such as Windows or Linux, implements and manages virtual memory.

The use of virtual memory can be limited by increasing the physical RAM or by closing applications that are not currently in use.

Lossless compression results in no data loss, preserving the original file quality, while lossy compression may lose some insignificant data, resulting in reduced file quality.

A protocol is a set of rules for transmitting data across a network. It governs how data is encoded, transmitted, and decoded during communication.

The SMT protocol is typically used for sending emails.

A distributed database is a database that is spread over multiple servers in different locations, allowing for improved data access and redundancy.

1. It eliminates congestion on a single server by distributing workloads.
2. It allows for greater availability as data can be accessed from multiple locations.

The main feature of Web 1.0 is that it consists primarily of static web pages with limited interactivity, focusing on read-only information.

Web 3.0 is referred to as the Semantic Web because it focuses on the ability to interpret information like humans do, enabling better user needs and personalization.

This feature is called the Internet of Things (IoT), where devices communicate independently with one another.

A webinar is an online seminar or presentation that allows interaction between the presenter and participants over the Internet.

One way the staff member may benefit is by expanding their knowledge base regarding educational practices.

SaaS stands for 'Software as a Service'.

Cloud applications operate by processing most functions in the cloud, where data is stored on remote servers. Users access these applications via their internet browsers without needing installation on local machines.

1. The software is not owned, leading to recurring costs for access.
2. If the service provider's server is down, users cannot access their information.

An RSS service is a web-based content delivery system that automatically provides users with updates about new content on websites they follow.

1. Limit time spent on the web and turn off notifications while working.
2. Refrain from sharing personal information online.

1. Increased anonymity online makes it difficult to trace criminals.
2. Many users are unaware of security risks, leading to negligence.

The term used is 'piggybacking'.

A drone is a machine that can fly autonomously or be remotely controlled, typically equipped with cameras and sensors.

1. It allows for rapid prototyping, enabling quick adjustments to designs.
2. Parts can be printed on-demand, reducing waste and storage issues.