Answer:
A. Define boundaries
C. Deny access
D. Delay access
Explanation:
A barrier is a material or structure used to prevent or block access. Barriers can either be natural or structural and are used for many purposes usually for security reasons. The following are functions of barriers either natural or structural:
- Define areas of boundaries
- Delay or slow access. Example is the use of speed bumps to slow down vehicles.
- Provide access to entrances such as the use of gates
- Deny access to unauthorized personnel and allowing authorized personnel.
In C influenced languages - 0.
The stage that precedes the implementation stage of SDLC is <u>testing</u> and it involves checking the functionality of the system.
System design involves the process of determining an overall system architecture, which typically comprises the following:
- Physical processing components.
Generally, there are seven (7) main stages in the systems development life cycle (SDLC) model and these include:
1. Planning.
2. Analysis.
3. Design.
4. Development.
5. Testing.
6. Implementation.
7. Maintenance.
From the above, we can deduce that the stage which precedes the implementation stage of SDLC is testing.
During the testing stage of SDLC, a quality assurance (QA) expert checks the system to determine whether or not it is functioning properly before it is deployed for operation, which is where the system can be used.
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Answer:
Gantt Chart
Explanation:
Gantt chart can help in planning and managing projects by breaking a large project into a series of smaller tasks in an organized way. It tracks both time and interdependencies between tasks. It is an important tool for showing phases, tasks, milestones & resources.
A computer’s motherboard has a series of slots and connectors. Slots allow daughter boards to be plugged directly while connectors allow communication through cables with other peripheral devices. CPU sockets, Hard Drive connectors, Memory sockets, and Power connector are examples of components that can be connected internally in some way to the motherboard. Other physical devices include RAM, hard disks, and graphics card.
