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2021 Sep 312-50 study guide
Q301. A particular database threat utilizes a SQL injection technique to penetrate a target system. How would an attacker use this technique to compromise a database?
A. An attacker uses poorly designed input validation routines to create or alter SQL commands to gain access to unintended data or execute commands of the database
B. An attacker submits user input that executes an operating system command to compromise a target system
C. An attacker gains control of system to flood the target system with requests, preventing legitimate users from gaining access
D. An attacker utilizes an incorrect configuration that leads to access with higher-than-expected privilege of the database
Answer: A
Explanation: Using the poorly designed input validation to alter or steal data from a database is a SQL injection attack.
Q302. Your are trying the scan a machine located at ABC company’s LAN named mail.abc.com. Actually that machine located behind the firewall. Which port is used by nmap to send the TCP synchronize frame to on mail.abc.com?
A. 443
B. 80
C. 8080
D. 23
Answer: A
Q303. If you send a SYN to an open port, what is the correct response?(Choose all correct answers.
A. SYN
B. ACK
C. FIN
D. PSH
Answer: AB
Explanation: The proper response is a SYN / ACK. This technique is also known as half-open scanning.
Q304. Theresa is the chief information security officer for her company, a large shipping company based out of New York City. In the past, Theresa and her IT employees manually checked the status of client computers on the network to see if they had the most recent Microsoft updates. Now that the company has added over 100 more clients to accommodate new departments, Theresa must find some kind of tool to see whether the clients are up-to-date or not. Theresa decides to use Qfecheck to monitor all client computers. When Theresa runs the tool, she is repeatedly told that the software does not have the proper permissions to scan. Theresa is worried that the operating system hardening that she performs on all clients is keeping the software from scanning the necessary registry keys on the client computers.
What registry key permission should Theresa check to ensure that Qfecheck runs properly?
A. In order for Qfecheck to run properly, it must have enough permission to read
B. She needs to check the permissions of the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates registry key
C. Theresa needs to look over the permissions of the registry key
D. The registry key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Microsoft must be checked
Answer: B
Explanation: Qfecheck check the registry HKLM\Software\Microsoft\Updates
Q305. What type of Virus is shown here?
A. Cavity Virus
B. Macro Virus
C. Boot Sector Virus
D. Metamorphic Virus
E. Sparse Infector Virus
Answer: E
Most recent 312-50 free draindumps:
Q306. Which one of the following is defined as the process of distributing incorrect Internet Protocol (IP) addresses/names with the intent of diverting traffic?
A. Network aliasing
B. Domain Name Server (DNS) poisoning
C. Reverse Address Resolution Protocol (ARP)
D. Port scanning
Answer: B
This reference is close to the one listed DNS poisoning is the correct answer.
This is how DNS DOS attack can occur. If the actual DNS records are unattainable to the attacker for him to alter in this fashion, which they should be, the attacker can insert this data into the cache of there server instead of replacing the actual records, which is referred to as cache poisoning.
Q307. Erik notices a big increase in UDP packets sent to port 1026 and 1027 occasionally. He
enters the following at the command prompt.
$ nc -l -p 1026 -u -v
In response, he sees the following message.
cell(?(c)????STOPALERT77STOP! WINDOWS REQUIRES IMMEDIATE ATTENTION.
Windows has found 47 Critical Errors.
To fix the errors please do the following:
1. Download Registry Repair from: www.reg-patch.com
2. Install Registry Repair
3. Run Registry Repair
4. Reboot your computer
FAILURE TO ACT NOW MAY LEAD TO DATA LOSS AND CORRUPTION!
What would you infer from this alert?
A. The machine is redirecting traffic to www.reg-patch.com using adware
B. It is a genuine fault of windows registry and the registry needs to be backed up
C. An attacker has compromised the machine and backdoored ports 1026 and 1027
D. It is a messenger spam. Windows creates a listener on one of the low dynamic ports from 1026 to 1029 and the message usually promotes malware disguised as legitimate utilities
Answer: D
Explanation: The "net send" Messenger service can be used by unauthorized users of your computer, without gaining any kind of privileged access, to cause a pop-up window to appear on your computer. Lately, this feature has been used by unsolicited commercial advertisers to inform many campus users about a "university diploma service"...
Q308. Steven works as a security consultant and frequently performs penetration tests for Fortune 500 companies. Steven runs external and internal tests and then creates reports to show the companies where their weak areas are. Steven always signs a non-disclosure agreement before performing his tests. What would Steven be considered?
A. Whitehat Hacker
B. BlackHat Hacker
C. Grayhat Hacker
D. Bluehat Hacker
Answer: A
Explanation: A white hat hacker, also rendered as ethical hacker, is, in the realm of information technology, a person who is ethically opposed to the abuse of computer systems. Realization that the Internet now represents human voices from around the world has made the defense of its integrity an important pastime for many. A white hat generally focuses on securing IT systems, whereas a black hat (the opposite) would like to break into them.
Q309. Who is an Ethical Hacker?
A. A person who hacks for ethical reasons
B. A person who hacks for an ethical cause
C. A person who hacks for defensive purposes
D. A person who hacks for offensive purposes
Answer: C
Explanation: The Ethical hacker is a security professional who applies his hacking skills for defensive purposes.
Q310. Jess the hacker runs L0phtCrack’s built-in sniffer utility which grabs SMB password hashes and stores them for offline cracking. Once cracked, these passwords can provide easy access to whatever network resources the user account has access to.
But Jess is not picking up hashed from the network.
Why?
A. The network protocol is configured to use SMB Signing.
B. The physical network wire is on fibre optic cable.
C. The network protocol is configured to use IPSEC.
D. L0phtCrack SMB filtering only works through Switches and not Hubs.
Answer: A
Explanation: To protect against SMB session hijacking, NT supports a cryptographic integrity mechanism, SMB Signing, to prevent active network taps from interjecting themselves into an already established session.