How does a screened host setup differ from a dual-homed host configuration? Why might you choose this configuration?
What will be an ideal response?
A screened host setup is similar to a dual-homed host, but the main difference is that a router
is often added between the host and the Internet to carry out IP packet filtering. A screened host is essentially a combination of a dual-homed host and screening router configuration; the two are blended for an added layer of functionality, security, and performance. You might choose this setup for perimeter security on a corporate network. A common enhancement is to have a screened host function as an application gateway or proxy server. The only network services allowed to pass through the proxy server are those for which proxy applications are already available.
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In computer science, process scheduling can be handled by simple or priority queues.
Answer the following statement true (T) or false (F)
Cable TV is a two-way service with signals coming to and from your TV to the cable provider.
Answer the following statement true (T) or false (F)
Access control is intended to guard the ____ of information by making it accessible only to authorized users.
A. confidentiality B. availability C. integrity D. non-repudiation
Some systems analysts maintain that source documents are unnecessary. They say that all input can be entered directly into the system, without wasting time in an intermediate step. Do you agree? Can you think of any situations where source documents are essential?
What will be an ideal response?