Answer:
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Answer: a. RADIUS
Explanation:
RADIUS as developed with the idea of allowing its users or clients to be able to authenticate to a dial-in access server. So basically it is a client server protocol and he client here is the firebox and the server is the RADIUS server.
The authentication mechanism start by user who sends a message to the RADIUS server. Then the RADIUS server upon receiving the message accept or denies it. It accepts if the client is configured to the server.
A large amount of additional information can be sent by the RADIUS server in its Access-Accept messages with users so we can say that RADIUS is uitable for what are called "high-volume service control applications" such as dial-in access to a corporate network.
JavaScript can be used to simulate the behavior of the placeholder attribute in older browsers by using the placeholder attribute which add a placeholder text as a default value and using a different color to differentiate from a color previously entered.
<h3>How are behavior simulated?</h3>
Normally, a user can simulate the behavior of placeholder text in older browsers by setting the value of the value property.
In conclusion, the JavaScript can be used to simulate the behavior of the placeholder attribute in older browsers by using the placeholder attribute which add a placeholder text as a default value and using a different color to differentiate from a color previously entered.
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<em>brainly.com/question/16698901</em>