What will certainly you get after purchase: One particular. A EC-Council 312-50 examine guide Only two. Printable Pdf files and Test Engine software Three. Truly online EC-Council 312-50 test Several. Interactive space with candidates 5. Produce and get notes around the 312-50 practice questions
2021 Apr 312-50 study guide
Q381. You are having problems while retrieving results after performing port scanning during internal testing. You verify that there are no security devices between you and the target system. When both stealth and connect scanning do not work, you decide to perform a NULL scan with NMAP. The first few systems scanned shows all ports open.
Which one of the following statements is probably true?
A. The systems have all ports open.
B. The systems are running a host based IDS.
C. The systems are web servers.
D. The systems are running Windows.
Answer: D
Explanation: The null scan turns off all flags, creating a lack of TCP flags that should never occur in the real world. If the port is closed, a RST frame should be returned and a null scan to an open port results in no response. Unfortunately Microsoft (like usual) decided to completely ignore the standard and do things their own way. Thus this scan type will not work against systems running Windows as they choose not to response at all. This is a good way to distinguish that the system being scanned is running Microsoft Windows.
Q382. You are configuring the security options of your mail server and you would like to block certain file attachments to prevent viruses and malware from entering the users inbox.
Which of the following file formats will you block?
(Select up to 6)
A. .txt
B. .vbs
C. .pif
D. .jpg
E. .gif
F. .com
G. .htm
H. .rar
I. .scr
J. .exe
Answer: BCEFIJ
Explanation: http://office.microsoft.com/en-us/outlook/HP030850041033.aspx
Q383. Bryan notices the error on the web page and asks Liza to enter liza' or '1'='1 in the email field. They are greeted with a message "Your login information has been mailed to
johndoe@gmail.com". What do you think has occurred?
A. The web application picked up a record at random
B. The web application returned the first record it found
C. The server error has caused the application to malfunction
D. The web application emailed the administrator about the error
Answer: B
Explanation: The web application sends a query to an SQL database and by giving it the criteria 1=1, which always will be true, it will return the first value it finds.
Q384. What is the proper response for a NULL scan if the port is open?
A. SYN
B. ACK
C. FIN
D. PSH
E. RST
F. No response
Answer: F
Explanation: A NULL scan will have no response if the port is open.
Q385. Which definition below best describes a covert channel?
A. Making use of a Protocol in a way it was not intended to be used
B. It is the multiplexing taking place on communication link
C. It is one of the weak channels used by WEP that makes it insecure
D. A Server Program using a port that is not well known
Answer: A
Explanation: A covert channel is a hidden communication channel not intended for information transfer at all. Redundancy can often be used to communicate in a covert way. There are several ways that hidden communication can be set up.
Far out 312-50 simulations:
Q386. Paul has just finished setting up his wireless network. He has enabled numerous security features such as changing the default SSID, enabling WPA encryption and enabling MAC filtering on hi wireless router. Paul notices when he uses his wireless connection, the speed is sometimes 54 Mbps and sometimes it is only 24mbps or less. Paul connects to his wireless router’s management utility and notices that a machine with an unfamiliar name is connected through his wireless connection. Paul checks the router’s logs and notices that the unfamiliar machine has the same MAC address as his laptop.
What is Paul seeing here?
A. MAC Spoofing
B. Macof
C. ARP Spoofing
D. DNS Spoofing
Answer: A
Explanation: You can fool MAC filtering by spoofing your MAC address and pretending to have some other computers MAC address.
Topic 16, Virus and Worms
423. Virus Scrubbers and other malware detection program can only detect items that they are aware of. Which of the following tools would allow you to detect unauthorized changes or modifications of binary files on your system by unknown malware?
A. System integrity verification tools
B. Anti-Virus Software
C. A properly configured gateway
D. There is no way of finding out until a new updated signature file is released
Answer: A
Explanation: Programs like Tripwire aids system administrators and users in monitoring a designated set of files for any changes. Used with system files on a regular (e.g., daily) basis, Tripwire can notify system administrators of corrupted or tampered files, so damage control measures can be taken in a timely manner.
Q387. On a default installation of Microsoft IIS web server, under which privilege does the web server software execute?
A. Everyone
B. Guest
C. System
D. Administrator
Answer: C
Explanation: If not changed during the installation, IIS will execute as Local System with way to high privileges.
Q388. One of the effective DoS/DDoS countermeasures is 'Throttling'. Which statement correctly defines this term?
A. Set up routers that access a server with logic to adjust incoming traffic to levels that will be safe for the server to process
B. Providers can increase the bandwidth on critical connections to prevent them from going down in the event of an attack
C. Replicating servers that can provide additional failsafe protection
D. Load balance each server in a multiple-server architecture
Answer: A
Q389. A denial of Service (DoS) attack works on the following principle:
A. MS-DOS and PC-DOS operating system utilize a weaknesses that can be compromised and permit them to launch an attack easily.
B. All CLIENT systems have TCP/IP stack implementation weakness that can be compromised and permit them to lunch an attack easily.
C. Overloaded buffer systems can easily address error conditions and respond appropriately.
D. Host systems cannot respond to real traffic, if they have an overwhelming number of incomplete connections (SYN/RCVD State).
E. A server stops accepting connections from certain networks one those network become flooded.
Answer: D
Explanation: Denial-of-service (often abbreviated as DoS) is a class of attacks in which an attacker attempts to prevent legitimate users from accessing an Internet service, such as a web site. This can be done by exercising a software bug that causes the software running the service to fail (such as the “Ping of Death” attack against Windows NT systems), sending enough data to consume all available network bandwidth (as in the May, 2001 attacks against Gibson Research), or sending data in such a way as to consume a particular resource needed by the service.
Q390. Leesa is the senior security analyst for a publicly traded company. The IT department recently rolled out an intranet for company use only with information ranging from training, to holiday schedules, to human resources data. Leesa wants to make sure the site is not accessible from outside and she also wants to ensure the site is Sarbanes-Oxley (SOX) compliant. Leesa goes to a public library as she wants to do some Google searching to verify whether the company's intranet is accessible from outside and has been indexed by Google. Leesa wants to search for a website title of "intranet" with part of the URL containing the word "intranet" and the words "human resources" somewhere in the webpage.
What Google search will accomplish this?
A. related:intranet allinurl:intranet:"human resources"
B. cache:"human resources" inurl:intranet(SharePoint)
C. intitle:intranet inurl:intranet+intext:"human resources"
D. site:"human resources"+intext:intranet intitle:intranet
Answer: C