Answer. D: a value that looks loads when the program runs.
Explanation:
In programming, a variable is a value that can change, depending on conditions or on information passed to the program. Typically, a program consists of instruction s that tell the computer what to do and data that the program uses when it is running.
Answer:
See the explanation for the answer.
Explanation:
Australian regulations makes extremely difficult for the enterprises to move organizations sensitive data to the cloud which is storing outside the Australian network. These are all managed by the Office of Australian Information Commissioner(OAIC) which provides oversight on the data privacy regulations designed to govern the dissemination of the sensitive information.
One rule they applied under this is The Australian National Privacy Act 1988 which tells how the organizations collect, use, secure, store the information. The National Privacy Principles in the Act tells how organizations should use the people's personal information. The NPP has a rule that An organization must take the responsibility to hold the information without misuse or modified by unauthorized access. They require enterprises to put security service level agreements with the cloud service providers that define audit rights, data location, access rights when there is cross border disclosure of information.
In later time they introduced a new principle called The Privacy Amendment Act 2012. This principle gives set of new rules along with the changes in the many rules in the previous act and also this is having a set of new principles those are called Australian Privacy Principles (APP).
In this there is principle for cross border disclosure of personal information which is APP8. This rule regulates the disclosure or transfer of personal information by an agency or company to a different location outside the country.
Before disclosure the information outside they have to take responsible steps that the company outside the Australia must not breach the APP 's.
Answer:
All the ports in a hub are in the same collision domain and a hub sends frames from one host to all other hosts in the network. This makes it prone to collision and poor network throughput. Just like a network switch, it uses the CSMA/CD protocol to detect collision in its network.
A network switch reduces its collision domain to just a port and sends frames from one host to another using its mac table as a route. This makes the network very efficient with high throughput. It also uses the CSMA/CD protocol to detect collision
Explanation:
Switches and hubs are used in networking to connect computer devices in a network. A hub is an obsolete device networking that broadcast a frame to all other ports or host in the network except for the send host port. This increases the rate of collision as all the ports in a hub share the same collision domain. A switch is an efficient frame switching device in a network, which uses its MAC table to decide and find a destination host.
CSMA/CD is a collision detection protocol used in a network to detect and prevent a collision. With this protocol, a host is able to listen, wait, send and resend frames to prevent a collision.
Answer: A) systems analysis phase of the SDLC.
Explanation:
In accordance with system development life cycle(SDLC) , analysis phase is the stage where all the requirement and materials for the system are collected and ordered.The requirements are in the form of input and output which are extracted and documented to provide clear vision of outcome.
- Other options are incorrect because design phase is for designing the format ans structure of system through input components. Planning and selection stage is making scheme through opting correct requirement for system.
- Implementation and operation phase is the stage of implementing the components on system structure to make them perform their respective tasks. Logic modelling level is defining inputs , components, outputs in logical manner so that they provide desired result operating.
- Thus, the correct operation is option(A).
