Problem areas

concepts that need a little attention

maintainability

The ability to make modifications, extend functionality, and correct errors

Software requirements

Functional

Non Functional: Regulatory, business, user, architectural

What are the types of design?

Interface

Architectural

Detailed

Continuous

Interface design

Specifications on the interactions between a system and its environment

Architectural design

Specification of the major components of a system, properties, interfaces between these components, and their interactions

Detailed design

specifications of the internal elements of each of the system components, properties, relationships, algorithms and data structures

Continuous design

Simple specification of processes, focusing on continuously adding new features

what are the types of testing?

Unit

Integration

System

Acceptance

Unit testing

tests for specific portions of code

Integration testing

tests that modules work together

System testing

tests that the functional and operational requirements are met

Acceptance testing

tests that the users accept the software, the software meets the business case, contractual obligations, and regulatory requirements

what is a software license

Explains the terms, conditions, and warranties available

Protected by copyright law

Security architecture

the design of system components to address risks and guarantee the CIA triad principles

Digital forensic process

Identification

Collection

Examination

Analysis

Presentation

Evidence in law requirements

Probative value: ability of a piece of evidence to prove or disprove a fact that is relevant to the case

Reliability: truthfulness of a statement about facts

Authenticity: record produced by properly functioning system

Digital forensic principles

Integrity

Reliability

Chain of custody

Chain of custody

Record identifying the movement and handling of digital artifacts.

Integrity

Maintain and safeguard original conditions

Reliability

Methodology to demonstrate that a tool, technique or procedure functions correctly and as intended

Reliability validation

methodology to demonstrate that a tool, technique or procedure functions as intended

validation of methods

Assessment of if standardized sequence of steps leads to a reliable result

Questions to ask about evidence

Where does this come from?

Who gave this?

Where are the originals?

Who tested this?

What is cyber security?

Defending assets from threats with controls

What is a network?

A set of devices that are interconnected and autonomous sharing data and resources either using a wired or wireless connection

OSi model

• Application

• Presentation

• Session

• Transport

• Network

• Data link

• Physical

TCP/IP model

Simplifies model into four layers:

• Application

• Transport

• Internet

• Access layer

Internet

Global network that provides information and communication consisting of interconnected networking, following standard protocols

Protocols

Formal set of rules that determine how data is exchanged on a network so that devices know how to communicate with eachother

What is a database

Organized collection of data that is stored and accessed electronically

Relational database

Set on mathematical set theory, comprised of tables with rows and columns.

Primary key

Unique identifier

Relationships

Connections between the tables

The Cloud

Model for providing on demand services, broad network access, scalability, and ease of maintenance by allowing access to remove servers over the internet

Infrastructure as a service

provides resources such as physical machines

Platform as a service

Provides environments such as operating systems

Software as a service

Provides applications and necessary platforms

What is an operating system?

manages a computers hardware and software resources and applications