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EC0-350 PDF DEMO:
QUESTION NO: 1
Mark works as a contractor for the Department of Defense and is in charge of network security.
He has spent the last month securing access to his network from all possible entry points. He has segmented his network into several subnets and has installed firewalls all over the network. He has placed very stringent rules on all the firewalls, blocking everything in and out except ports that must be used. He does need to have port 80 open since his company hosts a website that must be accessed from the Internet. Mark is fairly confident of his perimeter defenses, but is still worried about programs like Hping2 that can get into a network through covert channels. How should mark protect his network from an attacker using Hping2 to scan his internal network?
A.Block ICMP type 13 messages
B.Block all incoming traffic on port 53
C.Block all outgoing traffic on port 53
D.Use stateful inspection on the firewalls
Correct:A
QUESTION NO: 2
Eric notices repeated probes to port 1080. He learns that the protocol being used is designed to allow a host outside of a firewall to connect transparently and securely through the firewall. He wonders if his firewall has been breached. What would be your inference?
A.Eric's network has been penetrated by a firewall breach
B.The attacker is using the ICMP protocol to have a covert channel
C.Eric has a Wingate package providing FTP redirection on his network
D.Somebody is using SOCKS on the network to communicate through the firewall
Correct:D
QUESTION NO: 3
Bill has started to notice some slowness on his network when trying to update his company's website and 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 cannot access the company website and cannot purchase anything online. Bill logs on to a couple of his routers and notices that the logs show network traffic is at an 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 the 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?
A.LACNIC
B.ARIN
C.RIPE LACNIC
D.APNIC
Correct:A
QUESTION NO: 4
After a client sends a connection request (SYN) packet to the server, the server will respond
(SYN-ACK) with a sequence number of its choosing, which then must be acknowledged (ACK) by the client. This sequence number is predictable; the attack connects to a service first with its own
IP address, records the sequence number chosen, and then opens a second connection from a forged IP address. The attack doesn't see the SYN-ACK (or any other packet) from the server, but can guess the correct responses. If the source IP address is used for authentication, then the attacker can use the one-sided communication to break into the server. What attacks can you successfully launch against a server using the above technique?
A.Session Hijacking attacks
B.Denial of Service attacks
C.Web page defacement attacks
D.IP spoofing attacks
Correct:A
QUESTION NO: 5
Bill has successfully executed a buffer overflow against a Windows IIS web server. He has been able to spawn an interactive shell and plans to deface the main web page. He first attempts to use the "Echo" command to simply overwrite index.html and remains unsuccessful. He then attempts to delete the page and achieves no progress. Finally, he tries to overwrite it with another page in which also he remains unsuccessful. What is the probable cause of Bill's problem?
A.The system is a honeypot
B.The HTML file has permissions of read only
C.You cannot use a buffer overflow to deface a web page
D.There is a problem with the shell and he needs to run the attack again
Correct:B
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Updated: May 27, 2022