To answer this question, let's go through each option to understand why it is correct or incorrect:
Option A) Host-based IDS - This option is incorrect because a proxy server does not directly create a host-based Intrusion Detection System (IDS). Host-based IDS typically involves installing IDS software on individual hosts to monitor and detect any suspicious activities.
Option B) Network-based IDS - This option is incorrect because a proxy server does not directly create a network-based IDS. Network-based IDS usually involves dedicated hardware or software that monitors network traffic for suspicious activities.
Option C) Network perimeter - This option is correct. A proxy server is commonly used to create a network perimeter, which acts as a boundary between the internal network and the external network (such as the internet). By using a proxy server, organizations can control and monitor the traffic flowing in and out of their network, enhancing security and privacy.
Option D) Network entrapment point - This option is incorrect because a proxy server is not specifically used as a network entrapment point. A network entrapment point refers to a location within a network where unauthorized activities or threats can be detected or captured.
Therefore, the correct answer is option C) network perimeter. A proxy server is ideal for creating a network perimeter to enhance network security and control the flow of traffic.