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Network Technologies and Tools

Network technologies

Operating systems (Windows, Linux)

An operating system (OS) is a system software that sits between the software application a user interacts with and the computer hardware such as input and output devices like a mouse or printer, central processing unit (CPU), and random access …

Project Management Methodologies

Waterfall and agile methodologies are the most documented for project management. Waterfall is seen as traditional which is more applicable to traditional industries like construction, whereas agile is often referenced in software development. In most IT projects, depending on what stage they are …

Concepts Issues Risks When Managing Networking and Cybersecurity Projects

Concepts

A concept is an idea of a project which could be installing software, configuring the network, running a penetration test, writing a business continuity plan, etc. Since it is an idea, it normally refers to a proactive approach such as planning for blue teaming and red teaming events …

Project Lifecycle in Networking and Cybersecurity

A project lifecycle can include the six stages: conception and start up, definition of the project, planning, launch and execution, closure, and post-project evaluation.

Concept and start up

The concept and start up phase includes identifying a problem and possible project owners to conduct the …

Balance Between Restricting and Enabling Access

A balance needs to be struck between restricting and enabling access for legitimate users because security should be implemented where practicable to comply with local data protection regulations, such as the United Kingdom General Data Protection Regulation (UK GDPR), without impeding business …

Methods of Identity Management and Authentication

Identity Management

Single Sign-On (SSO) allows users to sign into multiple platforms with a single set of login credentials. The common SSOs are Google, GitHub, Microsoft, LinkedIn, Facebook. SSO uses what the user knows. Signing in is now convenient because a user only needs to remember one …

Access Control Techniques

Discretionary Access Control

The Discretionary Access Control (DAC) model is the least restrictive whereby it does not rely on the administrator to set roles, thus the power is distributed to the owner, i.e. the person who created the object which could be a file or directory. The owner has full …

Types of Access Control From a Physical Logical and Administrative Perspective

Physical perspective

Access control from a physical perspective is a security system that grants or denies people access into a building or an area. Only authorised employees and visitors are allowed into the premises. Credentials can be verified usually with what the person has which is a staff …

Role of Access Control

Role of access control

Access control is a set of protocols that acts as gatekeepers to blocks unauthorised users and devices from accessing a private network, or give restricted access to external users. The policies prevent unwanted intruders from entering the network or data from leaving. Access …

Effectiveness of Different Transmission Methods

Half duplex vs Full duplex

Half duplex can communicate in only one direction at a time. E.g. a radio (walkie-talkie) whereby only one device is allowed to send data and the other devices can receive.

The advantage of using a half duplex is it is used in Wi-Fi as evidenced in the download and …

Principles of Signal Theory

Signal Theory is the study of how information is transmitted between two or more entities, also known as peers, in a communication system. The digital signals are a series of pulses made of denoting on and off or 1’s or 0’s which can be digital or analog waves. Digital signal processing (DSP) is a …

Main Elements of Data Communication Systems

Data communication happens between two computers: a client and a server. The main elements of data communication systems consist of a sender, receiver, protocol, message,and transmission medium.

A sender and a receiver are an endpoint device, a client or a server. This could be a computer, mobile …