which among the following would be appropriate?
Exhibit Study the log given in the exhibit, Precautionary measures to prevent this attack would include writing firewall rules. Of these firewall rules, which among the following would be appropriate?
What has happened when The connection is successful even though you have FTP blocked at the external firewall?
You are running through a series of tests on your network to check for any security vulnerabilities. After normal working hours, you initiate a DoS attack against your external firewall. The firewall Quickly freezes up and becomes unusable. You then initiate an FTP connection from an external IP into your internal network. The connection is successful even though you have FTP blocked at the external firewall. What has happened?
What has happened?
You are running through a series of tests on your network to check for any security vulnerabilities. After normal working hours, you initiate a DoS attack against your external firewall. The firewall quickly freezes up and becomes unusable. You then initiate an FTP connection from an external IP into your internal network. The connection is successful even though you have FTP blocked at the external firewall. What has happened?
Why is that when he does not see any of the traffic produced by Firewalk?
John is using Firewalk to test the security of his Cisco PIX firewall. He is also utilizing a sniffer located on a subnet that resides deep inside his network. After analyzing the sniffer log files, he does not see any of the traffic produced by Firewalk. Why is that?
What no-cost setting could Jacob make to stop pop-ups on these computers?
Jacob is the network administrator for Richardson Electric, a heating and air conditioning company based out of Wichita. Jacob is responsible for the entire corporate network, including its security. Jacob has recently been receivingnumerous calls from users stating that they receive pop-ups all the time. Theseusers’ computers are all running Windows XP SP2. Jacob checks their Internet Explorer settings and the pop-up blocker is on for every machine. Jacob decidesto install a couple of other free browsers that have pop-up blockers, and the computers still receive numerous pop-ups. Jacob downloads free spyware and adwareremoval software to scan these computers. The scans return no results, and thecomputers are still getting numerous pop-ups. Jacob does not have any money inhis budget to buy any commercial products to stop this issue. What no-cost setting could Jacob make to stop pop-ups on these computers?
What port should Vickiblock at the firewall so no external connections can be made directly to the VoIP phones
Vicki is the IT manager for her company, an online retail business in Seattle. Vicki was recently given budget approval by the CIO to purchase 100 VoIP phones and all the VoIP networking equipment needed to make a complete VoIP implementation. Vicki and her employees install all the phones and set up the serversneeded to run the new system. After about three months of setup, everything hasbeen completed and the system is finally stable. Because she is not very familiar with VoIP security, she attends a VoIP security seminar which she finds very informative. One interesting piece of information she learns of is that most VoIP phones are installed with an imbedded OS called VxWorks. This, she finds out, is also what the VoIP phone manufacturer installed on all her company’s new VoIP phones. Vicki also learns that there is a default remote debugger on all these phones that listens on a specific port in case a remote administrator needs to do some troubleshooting. Vicki sees this as a large security problem. Instead of going to each and every new phone to turn off this feature, she decides toblock the necessary port on the firewall to save time. What port should Vickiblock at the firewall so no external connections can be made directly to the VoIP phones?
What built-in technology used by FirewallInformer actively performs these exploit tests on network equipment?
Neville is a network security analyst working for Fenderson Biomedics, a medical research company based out of London. Neville has been tasked by his supervisor to ensure that the company is as secure as possible. Neville first examines and hardens the OS for all company clients and servers. Neville wants to check the performance and configuration of every firewall and network device to ensure they comply with company security policies. Neville has chosen to use Firewall Informer because it actively and safely tests devices with real-world exploits to determine their security state. What built-in technology used by FirewallInformer actively performs these exploit tests on network equipment?
What type of technique might be used by these offenders to access the Internet without restriction?
Neil monitors his firewall rules and log files closely on a regular basis. Some of the users have complained to Neil that there are a few employees who are visiting offensive web sites during work hours, without consideration for others. Neil knows that he has an updated content filtering system and that such access should not be authorized. What type of technique might be used by these offenders to access the Internet without restriction?
While some of the methods listed below work, which holds the least risk of detection?
You wish to determine the operating system and type of web server being used. At the same time you wish to arouse no suspicion within the target organization. While some of the methods listed below work, which holds the least risk of detection?
What ports should be blocked on the firewall to prevent NetBIOS traffic from not coming through the firewall i
What ports should be blocked on the firewall to prevent NetBIOS traffic from not coming through the firewall if your network is comprised of Windows NT, 2000, and XP? (Choose all that apply.)