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2021 Mar 312-50 exam answers
Q171. You are the security administrator for a large online auction company based out of Los Angeles. After getting your ENSA CERTIFICATION last year, you have steadily been fortifying your network’s security including training OS hardening and network security. One of the last things you just changed for security reasons was to modify all the built-in administrator accounts on the local computers of PCs and in Active Directory. After through testing you found and no services or programs were affected by the name changes.
Your company undergoes an outside security audit by a consulting company and they said that even through all the administrator account names were changed, the accounts could still be used by a clever hacker to gain unauthorized access. You argue with the auditors and say that is not possible, so they use a tool and show you how easy it is to utilize the administrator account even though its name was changed.
What tool did the auditors use?
A. sid2user
B. User2sid
C. GetAcct
D. Fingerprint
Answer: A
Explanation: User2sid.exe can retrieve a SID from the SAM (Security Accounts Manager) from the local or a remote machine Sid2user.exe can then be used to retrieve the names of all the user accounts and more.
Q172. As a securing consultant, what are some of the things you would recommend to a company to ensure DNS security?
Select the best answers.
A. Use the same machines for DNS and other applications
B. Harden DNS servers
C. Use split-horizon operation for DNS servers
D. Restrict Zone transfers
E. Have subnet diversity between DNS servers
Answer: BCDE
Explanations:
A is not a correct answer as it is never recommended to use a DNS server for any other application. Hardening of the DNS servers makes them less vulnerable to attack. It is recommended to split internal and external DNS servers (called split-horizon operation). Zone transfers should only be accepted from authorized DNS servers. By having DNS servers on different subnets, you may prevent both from going down, even if one of your networks goes down.
Q173. You have discovered that an employee has attached a modem to his telephone line and workstation. He has used this modem to dial in to his workstation, thereby bypassing your firewall. A security breach has occurred as a direct result of this activity. The employee explains that he used the modem because he had to download software for a department project. What can you do to solve this problem?
A. Install a network-based IDS
B. Reconfigure the firewall
C. Conduct a needs analysis
D. Enforce your security policy
Answer: D
Explanation: The employee was unaware of security policy.
Q174. In the context of using PKI, when Sven wishes to send a secret message to Bob, he looks up Bob’s public key in a directory, uses it to encrypt the message before sending it off. Bob then uses his private key to decrypt the message and reads it. No one listening on can decrypt the message.
Anyone can send an encrypted message to Bob but only Bob can read it. Thus, although many people may know Bob’s public key and use it to verify Bob’s signature, they cannot discover Bob’s private key and use it to forge digital signatures.
What does this principle refer to?
A. Irreversibility
B. Non-repudiation
C. Symmetry
D. Asymmetry
Answer: D
Explanation: PKI uses asymmetric key pair encryption. One key of the pair is the only way to decrypt data encrypted with the other.
Q175. You want to hide a secret.txt document inside c:windowssystem32tcpip.dll kernel library using ADS streams. How will you accomplish this?
A. copy secret.txt c:windowssystem32tcpip.dll kernel>secret.txt
B. copy secret.txt c:windowssystem32tcpip.dll:secret.txt
C. copy secret.txt c:windowssystem32tcpip.dll |secret.txt
D. copy secret.txt >< c:windowssystem32tcpip.dll kernel secret.txt
Answer: B
Latest 312-50 book:
Q176. Which of the following keyloggers cannot be detected by anti-virus or anti-spyware products?
A. Covert keylogger
B. Stealth keylogger
C. Software keylogger
D. Hardware keylogger
Answer: D
Explanation: As the hardware keylogger never interacts with the Operating System it is undetectable by anti-virus or anti-spyware products.
Q177. Sandra is the security administrator of ABC.com. One day she notices that the ABC.com Oracle database server has been compromised and customer information along with financial data has been stolen. The financial loss will be estimated in millions of dollars if the database gets into the hands of competitors. Sandra wants to report this crime to the law enforcement agencies immediately.
Which organization coordinates computer crime investigations throughout the United States?
A. NDCA
B. NICP
C. CIRP
D. NPC
E. CIA
Answer: D
Q178. SNMP is a connectionless protocol that uses UDP instead of TCP packets? (True or False)
A. True
B. False
Answer: A
Explanation: TCP and UDP provide transport services. But UDP was preferred. This is due to TCP characteristics, it is a complicate protocol and it consume to many memory and CPU resources. Where as UDP is easy to build and run. Into devices (repeaters and modems) vendors have built simple version of IP and UDP.
Q179. What is "Hacktivism"?
A. Hacking for a cause
B. Hacking ruthlessly
C. An association which groups activists
D. None of the above
Answer: A
Explanation: The term was coined by author/critic Jason Logan King Sack in an article about media artist Shu Lea Cheang. Acts of hacktivism are carried out in the belief that proper use of code will have leveraged effects similar to regular activism or civil disobedience.
Q180. Harold just got home from working at Henderson LLC where he works as an IT technician. He was able to get off early because they were not too busy. When he walks into his home office, he notices his teenage daughter on the computer, apparently chatting with someone online. As soon as she hears Harold enter the room, she closes all her windows and tries to act like she was playing a game. When Harold asks her what she was doing, she acts very nervous and does not give him a straight answer. Harold is very concerned because he does not want his daughter to fall victim to online predators and the sort. Harold doesn't necessarily want to install any programs that will restrict the sites his daughter goes to, because he doesn't want to alert her to his trying to figure out what she is doing. Harold wants to use some kind of program that will track her activities online, and send Harold an email of her activity once a day so he can see what she has been up to. What kind of software could Harold use to accomplish this?
A. Install hardware Keylogger on her computer
B. Install screen capturing Spyware on her computer
C. Enable Remote Desktop on her computer
D. Install VNC on her computer
Answer: B
