Mark works as a project engineer in Tech Perfect Inc. His office is configured with Windows XP-based computers. The computer that he uses is not configured with a default gateway. He is able to access the Internet, but is not able to use e-mail services via the Internet. However, he is able to access e-mail services via the intranet of the company.
Which of the following could be the reason of not being able to access e-mail services via the Internet?
A. Proxy server
B. IP packet filter
C. Router
D. Protocols other than TCP/IP
Mark works as a project engineer in Tech Perfect Inc. His office is configured with Windows XP-based computers. The comp
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Mark works as a project engineer in Tech Perfect Inc. His office is configured with Windows XP-based computers. The comp
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