Question #1 (60 marks): you have a new laptop that is running Windows 10 or windows 11 or Linux. You notice a security message that indicates that Firewall has been disabled. The laptop is currently...

Question #1 (60 marks): you have a new laptop that is running Windows 10 or windows 11 or Linux. You notice a security message that indicates that Firewall has been disabled. The laptop is currently connected to your organization's network, and the Domain network profile settings are in effect. You plan to travel this week, and you will connect the laptop to various airport Wi-Fi hotspots. You need to enable Firewall for any public network. Your task is to configure the Firewall of your choice as follows: 1. Turn on Firewall for the Public network profile only. (5marks) 2. In addition to the programs and ports currently allowed or blocked, block firefox only for the Public network profile. (10 marks) 3. Block any traffic from the ip address of 192.162.1.1 for all type of profile (10 marks) 4. show step-by-step how to set up a VPN of your choice (25 marks) Submit a brief written report that documents the above steps. Screenshots must be included showing all the required elements and their configuration settings (at least enough for me to see that it was done properly – imagine that you are documenting this for a colleague so that they would be able to follow your instructions and deploy an exact copy of what you have done). After finishing those steps, answer the following questions: • Why a firewall is a good place to implement a VPN? (5 marks) • Why not implement a VPN at the actual server(s) being accessed? (5 marks) Question
#2 (40 Marks): Some operating systems perform buffered I/O. In this scheme, an output request is accepted from a user, and the user is informed of the normal I/O completion. However, the actual physical write operation is performed later, at a time convenient to the operating system. • First, list the operating systems which perform buffered I/O (20 marks) • Second, discuss the effect of buffered I/O on integrity in a DBMS (20 marks)
Mar 12, 2023
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