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Computer Operation and Security

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Submitted By pebbienika
Words 519
Pages 3
8/31/14
Computer Operation and Security

Task 1

AMI - 6 beeps
AMI – BIOS cannot switch CPU into protected mode
Phoenix - beep - pause - beep beep beep - pause - beep beep beep beep- pause - beep beep + 1-3-4-3
Phoenix – Test 512K base memory

Task 2 Both hardware and software firewalls prevent unauthorized access and unauthorized use to the network. These firewalls ignore information that is not secured and comes from locations that are unknown and suspicious. Hardware firewalls can be stand-alone and/or in broadband routers. Hardware firewalls does not necessarily have to be configured and can protect all machines on a local network. Hardware firewalls examine packet headers by using a packet filter. Based on previously stored information and rules, the packet is then forwarded to its destination or dropped. Hardware firewalls determine whether the information packets are safe based on the ports and URL.

8/31/14

Software firewalls are installed on a specific computer as opposed to supporting a whole network. It protects against remote access to control your computer. It can also block the running of potentially unsafe applications on your computer. Software firewalls normally uses minimal system resources and runs in the background constantly to ensure protection for the computer. Software firewalls need to be kept up-to-date to ensure the best level of protection from newer viruses and malicious content. It is best to always test both hardware firewalls and software firewalls. Software firewalls has the capability to block both incoming and outgoing connections.
There are advantages and disadvantages to utilizing the hardware firewall. If the user isn’t too tech savvy, they could potentially expose the whole network to major vulnerabilities that could be detrimental to the company. This exposure could leak information that compromises the

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