Question $3$

$[24$ marks$]$

$3\mathrm{.}1$ In a complex network environment of a research institution, a Linux server hosts critical datasets accessed by multiple research teams. Each team consists of researchers with varying levels of access requirements. However, due to a recent security breach, the system administrator must enhance file access controls to ensure data confidentiality while facilitating collaboration. Discuss the three $(3)$ Linux$-$defined permissions that adhere to the principle of least privilege that could be applied to maintain data security and facilitate collaborative research efforts.

$[15$ marks$]$

$3$

HNTS$300-1-$Jul$-$Dec$2024-$FA$1-$CZ$-$V$3-27052024$

$3\mathrm{.}2$ In a software development environment, a team of developers collaborates on a complex coding project involving multiple programming languages, libraries, and frameworks. As the project progresses, developers encounter challenges in seamlessly integrating various components and analysing the output of different commands and programs. They realise the need to facilitate the efficient and standardised exchange of text$-$based data within the Linux operating system to streamline their workflow. Data exchange must happen while the components' details are hidden from the application. Evaluate the fundamental concepts that text applications can leverage to achieve the programmers' objective of facilitating the efficient and standardised exchange of text data.

$[9$ mark$]$