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2021 Sep 312-50 book
Q201. If a competitor wants to cause damage to your organization, steal critical secrets, or put you out of business, they just have to find a job opening, prepare someone to pass the interview, have that person hired, and they will be in the organization.
How would you prevent such type of attacks?
A. It is impossible to block these attacks
B. Hire the people through third-party job agencies who will vet them for you
C. Conduct thorough background checks before you engage them
D. Investigate their social networking profiles
Answer: C
Q202. Which of the following ICMP message types are used for destinations unreachables?
A. 0
B. 3
C. 11
D. 13
E. 17
Answer: B
Explanation: Type 3 messages are used for unreachable messages. 0 is Echo Reply, 8 is Echo request, 11 is time exceeded, 13 is timestamp and 17 is subnet mask request. Learning these would be advisable for the test.
Q203. This tool is widely used for ARP Poisoning attack. Name the tool.
A. Cain and Able
B. Beat Infector
C. Poison Ivy
D. Webarp Infector
Answer: A
Q204. Let's imagine three companies (A, B and C), all competing in a challenging global environment. Company A and B are working together in developing a product that will generate a major competitive advantage for them. Company A has a secure DNS server while company B has a DNS server vulnerable to spoofing. With a spoofing attack on the DNS server of company B, company C gains access to outgoing e-mails from company B. How do you prevent DNS spoofing? (Select the Best Answer.)
A. Install DNS logger and track vulnerable packets
B. Disable DNS timeouts
C. Install DNS Anti-spoofing
D. Disable DNS Zone Transfer
Answer: C
Explanation: Explantion: Implement DNS Anit-Spoofing measures to prevent DNS Cache Pollution to occur.
Q205. Steven is the senior network administrator for Onkton Incorporated, an oil well drilling company in Oklahoma City. Steven and his team of IT technicians are in charge of keeping inventory for the entire company; including computers, software, and oil well equipment. To keep track of everything, Steven has decided to use RFID tags on their entire inventory so they can be scanned with either a wireless scanner or a handheld scanner. These RFID tags hold as much information as possible about the equipment they are attached to. When Steven purchased these tags, he made sure they were as state of the art as possible. One feature he really liked was the ability to disable RFID tags if necessary. This comes in very handy when the company actually sells oil drilling equipment to other companies. All Steven has to do is disable the RFID tag on the sold equipment and it cannot give up any information that was previously stored on it.
What technology allows Steven to disable the RFID tags once they are no longer needed?
A. Newer RFID tags can be disabled by using Terminator Switches built into the chips
B. RFID Kill Switches built into the chips enable Steven to disable them
C. The company's RFID tags can be disabled by Steven using Replaceable ROM technology
D. The technology used to disable an RFIP chip after it is no longer needed, or possibly stolen, is called RSA Blocking
Answer: D
Explanation: http://www.rsa.com/rsalabs/node.asp?id=2060
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Q206. Your lab partner is trying to find out more information about a competitors web site. The site has a .com extension. She has decided to use some online whois tools and look in one of the regional Internet registrys. Which one would you suggest she looks in first?
A. LACNIC
B. ARIN
C. APNIC
D. RIPE
E. AfriNIC
Answer: B
Explanation: Regional registries maintain records from the areas from which they govern. ARIN is responsible for domains served within North and South America and therefore, would be a good starting point for a .com domain.
Q207. 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
Explanation: Nessus is the world's most popular vulnerability scanner, estimated to be used by over 75,000 organizations world-wide. Nmap is mostly used for scanning, not for detecting vulnerabilities. Hping is a free packet generator and analyzer for the TCP/IP protocol and make is used to automatically build large applications on the *nix plattform.
Q208. 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 defense, but is still worried about programs like Hping2 that can get into a network through convert channels.
How should mark protect his network from an attacker using Hping2 to scan his internal network?
A. Blocking 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
Answer: A
Explanation: An ICMP type 13 message is an ICMP timestamp request and waits for an ICMP timestamp reply. The remote node is right to do, still it would not be necessary as it is optional and thus many ip stacks ignore such packets. Nevertheless, nmap again achived to make its packets unique by setting the originating timestamp field in the packet to 0.
Q209. Which of the following encryption is not based on Block Cipher?
A. DES
B. Blowfish
C. AES
D. RC4
Answer: D
Explanation: RC4 (also known as ARC4 or ARCFOUR) is the most widely-used software stream cipher and is used in popular protocols such as Secure Sockets Layer (SSL) (to protect Internet traffic) and WEP (to secure wireless networks).
Topic 22, Penetration Testing Methodologies
556. Joel and her team have been going through tons of garbage, recycled paper, and other rubbish in order to find some information about the target they are attempting to penetrate.
What would you call this kind of activity?
A. CI Gathering
B. Scanning
C. Dumpster Diving
D. Garbage Scooping
Answer: C
Q210. You have installed antivirus software and you want to be sure that your AV signatures are working correctly. You don't want to risk the deliberate introduction of a live virus to test the AV software. You would like to write a harmless test virus, which is based on the European Institute for Computer Antivirus Research format that can be detected by the AV software.
How should you proceed?
A. Type the following code in notepad and save the file as SAMPLEVIRUS.COM. Your antivirus program springs into action whenever you attempt to open, run or copy it. X5O!P%@AP[4\PZX54(P^)7CC)7}$SAMPLEVIRUS-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*
B. Type the following code in notepad and save the file as AVFILE.COM. Your antivirus program springs into action whenever you attempt to open, run or copy it. X5O!P%@AP[4\PZX54(P^)7CC)7}$AVFILE-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*
C. Type the following code in notepad and save the file as TESTAV.COM. Your antivirus program springs into action whenever you attempt to open, run or copy it. X5O!P%@AP[4\PZX54(P^)7CC)7}$TESTAV-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*
D. Type the following code in notepad and save the file as EICAR.COM. Your antivirus program springs into action whenever you attempt to open, run or copy it. X5O!P%@AP[4\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*
Answer: D
Explanation: The EICAR test file (official name: EICAR Standard Anti-Virus Test File) is a file, developed by the European Institute for Computer Antivirus Research, to test the response of computer antivirus (AV) programs. The rationale behind it is to allow people, companies, and AV programmers to test their software without having to use a real computer virus that could cause actual damage should the AV not respond correctly. EICAR likens the use of a live virus to test AV software to setting a fire in a trashcan to test a fire alarm, and promotes the EICAR test file as a safe alternative.