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2021 Sep 312-50v8 exam engine
Q251. You are the security administrator for a large network. You want to prevent attackers from running any sort of traceroute into your DMZ and discovering the internal structure of publicly accessible areas of the network. How can you achieve this?
A. There is no way to completely block tracerouting into this area
B. Block UDP at the firewall
C. Block TCP at the firewall
D. Block ICMP at the firewall
Answer: A
Q252. One of your team members has asked you to analyze the following SOA record. What is the version?
Rutgers.edu.SOA NS1.Rutgers.edu ipad.college.edu (200302028 3600
3600 604800 2400.
A. 200303028
B. 3600
C. 604800
D. 2400
E. 60
F. 4800
Answer: A
Q253. Which.security strategy requires using several, varying methods to protect IT systems against.attacks?
A. Defense in depth
B. Three-way handshake
C. Covert channels
D. Exponential backoff algorithm
Answer: A
Q254. In Trojan terminology, what is a covert channel?
A. A channel that transfers information within a computer system or network in a way that violates the security policy
B. A legitimate communication path within a computer system or network for transfer of data
C. It is a kernel operation that hides boot processes and services to mask detection
D. It is Reverse tunneling technique that uses HTTPS protocol instead of HTTP protocol to establish connections
Answer: A
Q255. To send a PGP encrypted message, which piece of information from the recipient must the sender have before encrypting the message?
A. Recipient's private key
B. Recipient's public key
C. Master encryption key
D. Sender's public key
Answer: B
Up to the minute 312-50v8 exam question:
Q256. John is using a special tool on his Linux platform that has a signature database and is therefore able to detect hundred of vulnerabilities in UNIX, Windows, and commonly-used web CGI scripts. Additionally, the database detects DDoS zombies and Trojans. What would be the name of this multifunctional tool?
A. nmap
B. hping
C. nessus
D. make
Answer: C
Q257. Which statement best describes a server type under an N-tier architecture?
A. A group of servers at a specific layer
B. A single server with a specific role
C. A group of servers with a unique role
D. A single server.at a specific layer
Answer: C
Q258. Which of the following are variants of mandatory access control mechanisms? (Choose two.)
A. Two factor authentication
B. Acceptable use policy
C. Username / password
D. User education program
E. Sign in register
Answer: AC
Q259. A Trojan horse is a destructive program that masquerades as a benign application. The software initially appears to perform a desirable function for the user prior to installation and/or execution, but in addition to the expected function steals information or harms the system.
The challenge for an attacker is to send a convincing file attachment to the victim, which gets easily executed on the victim machine without raising any suspicion. Today's end users are quite knowledgeable about malwares and viruses. Instead of sending games and fun executables, Hackers today are quite successful in spreading the Trojans using Rogue security software.
What is Rogue security software?
A. A flash file extension to Firefox that gets automatically installed when a victim visits rogue software disabling websites
B. A Fake AV program that claims to rid a computer of malware,but instead installs spyware or other malware onto the computer. This kind of software is known as rogue security software.
C. Rogue security software is based on social engineering technique in which the attackers lures victim to visit spear phishing websites
D. This software disables firewalls and establishes reverse connecting tunnel between the victim's machine and that of the attacker
Answer: B
Q260. You are trying to package a RAT Trojan so that Anti-Virus software will not detect it. Which of the listed technique will NOT be effective in evading Anti-Virus scanner?
A. Convert the Trojan.exe file extension to Trojan.txt disguising as text file
B. Break the Trojan into multiple smaller files and zip the individual pieces
C. Change the content of the Trojan using hex editor and modify the checksum
D. Encrypt the Trojan using multiple hashing algorithms like MD5 and SHA-1
Answer: A