Derek has stumbled upon a wireless network and wants to assess its security. However, he does not find enough traffic for a good capture. He intends to use AirSnort on the captured traffic to crack the WEP key and does not know the IP address range or the AP. How can he generate traffic on the network so that he can capture enough packets to crack the WEP key?
Answer(s): D
By forcing the network to answer to a lot of ICMP messages you can gather enough packets to crack the WEP key.
Jim’s Organization just completed a major Linux roll out and now all of the organization’s systems are running Linux 2.5 Kernel. The roll out expenses has posed constraints on purchasing other essential security equipment and software. The organization requires an option to control network traffic and also perform stateful inspection of traffic going into and out of the DMZ, which built-in functionality of Linux can achieve this?
Answer(s): C
iptables is the name of the user space tool by which administrators create rules for the packet filtering and NAT modules. While technically iptables is merely the tool which controls the packet filtering and NAT components within the kernel, the name iptables is often used to refer to the entire infrastructure, including netfilter, connection tracking and NAT, as well as the tool itself. iptables is a standard part of all modern Linux distributions.
Bob was frustrated with his competitor, Brownies Inc., and decided to launch an attack that would result in serious financial losses. He planned the attack carefully and carried out the attack at the appropriate moment. Meanwhile, Trent, an administrator at Brownies Inc., realized that their main financial transaction server had been attacked. As a result of the attack, the server crashed and Trent needed to reboot the system, as no one was able to access the resources of the company. This process involves human interaction to fix it. What kind of Denial of Service attack was best illustrated in the scenario above?
Answer(s): B
This is not a DDOS, there is only one person involved as attacker
Sara is using the nslookup command to craft queries to list all DNS information (such as Name Servers, host names, MX records, CNAME records, glue records (delegation for child Domains), zone serial number, TimeToLive (TTL) records, etc) for a Domain. What do you think Sara is trying to accomplish? Select the best answer.
The zone transfer is the method a secondary DNS server uses to update its information from the primary DNS server. DNS servers within a domain are organized using a master-slave method where the slaves get updated DNS information from the master DNS. One should configure the master DNS server to allow zone transfers only from secondary (slave) DNS servers but this is often not implemented. By connecting to a specific DNS server and successfully issuing the ls –d domain-name > file-name you have initiated a zone transfer.
Bill has started to notice some slowness on his network when trying to update his company’s website while trying to access the website from the Internet. Bill asks the help desk manager if he has received any calls about slowness from the end users, but the help desk manager says that he has not. Bill receives a number of calls from customers that can’t access the company website and can’t purchase anything online. Bill logs on to a couple of this routers and notices that the logs shows network traffic is at all time high. He also notices that almost all the traffic is originating from a specific address.Bill decides to use Geotrace to find out where the suspect IP is originates from. The Geotrace utility runs a traceroute and finds that IP is coming from Panama. Bill knows that none of his customers are in Panama so he immediately thinks that his company is under a Denial of Service attack. Now Bill needs to find out more about the originating IP Address.What Internet registry should Bill look in to find the IP Address?
Answer(s): A
LACNIC is the Latin American and Caribbean Internet Addresses Registry that administers IP addresses, autonomous system numbers, reverse DNS, and other network resources for that region.
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