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Q171. A group policy requires users in an organization to use strong passwords that must be changed every 15 days. Joe and Ann were hired 16 days ago. When Joe logs into the network, he is prompted to change his password; when Ann logs into the network, she is not prompted to change her password. Which of the following BEST explains why Ann is not required to change her password?
A. Ann’s user account has administrator privileges.
B. Joe’s user account was not added to the group policy.
C. Ann’s user account was not added to the group policy.
D. Joe’s user account was inadvertently disabled and must be re-created.
Answer: C
Explanation:
Group policy is used to manage Windows systems in a Windows network domain environment by means of a Group Policy Object (GPO). GPO’s include a number of settings related to credentials, which includes password expiration. Because Anne was not prompted to change her password, it could only mean that her user account was not added to the group policy.
Q172. Matt, a security analyst, needs to select an asymmetric encryption method that allows for the same level of encryption strength with a lower key length than is typically necessary. Which of the following encryption methods offers this capability?
A. Twofish
B. Diffie-Hellman
C. ECC
D. RSA
Answer: C
Explanation:
Elliptic curve cryptography (ECC) is an approach to public-key cryptography based on the algebraic structure of elliptic curves over finite fields. One of the main benefits in comparison with non-ECC cryptography (with plain Galois fields as a basis) is the same level of security provided by keys of smaller size.
Q173. Sara, an employee, tethers her smartphone to her work PC to bypass the corporate web security gateway while connected to the LAN. While Sara is out at lunch her PC is compromised via the tethered connection and corporate data is stolen. Which of the following would BEST prevent this from occurring again?
A. Disable the wireless access and implement strict router ACLs.
B. Reduce restrictions on the corporate web security gateway.
C. Security policy and threat awareness training.
D. Perform user rights and permissions reviews.
Answer: C
Explanation:
BYOD (In this case Sara’s smart phone) involves the possibility of a personal device that is infected with malware introducing that malware to the network and security awareness training will address the issue of the company’s security policy with regard to BYOD.
Q174. Which of the following is used to certify intermediate authorities in a large PKI deployment?
A. Root CA
B. Recovery agent
C. Root user
D. Key escrow
Answer: A
Explanation:
The root CA certifies other certification authorities to publish and manage certificates within the organization. In a hierarchical trust model, also known as a tree, a root CA at the top provides all of the information. The intermediate CAs are next in the hierarchy, and they trust only information provided by the root CA. The root CA also trusts intermediate CAs that are in their level in the hierarchy and none that aren’t. This arrangement allows a high level of control at all levels of the hierarchical tree. .
Q175. Mike, a security professional, is tasked with actively verifying the strength of the security controls on a company’s live modem pool. Which of the following activities is MOST appropriate?
A. War dialing
B. War chalking
C. War driving
D. Bluesnarfing
Answer: A
Explanation:
War dialing is a technique of using a modem to automatically scan a list of telephone numbers, usually dialing every number in a local area code to search for computers, Bulletin board systems and fax machines. Hackers use the resulting lists for various purposes: hobbyists for exploration, and crackers - malicious hackers who specialize in computer security - for guessing user accounts (by capturing voicemail greetings), or locating modems that might provide an entry-point into computer or other electronic systems. It may also be used by security personnel, for example, to detect unauthorized devices, such as modems or faxes, on a company's telephone network.
Q176. After visiting a website, a user receives an email thanking them for a purchase which they did not request. Upon investigation the security administrator sees the following source code in a pop-up window:
<HTML>
<body onload="document.getElementByID(‘badForm’).submit()">
<form id="badForm" action="shoppingsite.company.com/purchase.php" method="post" >
<input name="Perform Purchase" value="Perform Purchase"/>
</form>
</body>
</HTML>
Which of the following has MOST likely occurred?
A. SQL injection
B. Cookie stealing
C. XSRF
D. XSS
Answer: C
Explanation:
XSRF or cross-site request forgery applies to web applications and is an attack that exploits the web application’s trust of a user who known or is supposed to have been authenticated. This is often accomplished without the user’s knowledge.
Q177. Which of the following would be MOST appropriate to secure an existing SCADA system by preventing connections from unauthorized networks?
A. Implement a HIDS to protect the SCADA system
B. Implement a Layer 2 switch to access the SCADA system
C. Implement a firewall to protect the SCADA system
D. Implement a NIDS to protect the SCADA system
Answer: C
Explanation:
Q178. How must user accounts for exiting employees be handled?
A. Disabled, regardless of the circumstances
B. Disabled if the employee has been terminated
C. Deleted, regardless of the circumstances
D. Deleted if the employee has been terminated
Answer: A
Explanation:
You should always disable an employee’s account as soon as they leave. The employee knows the username and password of the account and could continue to log in for potentially malicious purposes. Disabling the account will ensure that no one can log in using that account.
Q179. Computer evidence at a crime scene is documented with a tag stating who had possession of the evidence at a given time.
Which of the following does this illustrate?
A. System image capture
B. Record time offset
C. Order of volatility
D. Chain of custody
Answer: D
Explanation:
Chain of custody deals with how evidence is secured, where it is stored, and who has access to it. When you begin to collect evidence, you must keep track of that evidence at all times and show who has it, who has seen it, and where it has been.
Q180. Jane, an individual, has recently been calling various financial offices pretending to be another person to gain financial information. Which of the following attacks is being described?
A. Phishing
B. Tailgating
C. Pharming
D. Vishing
Answer: D
Explanation:
Vishing (voice or VoIP phishing) is an electronic fraud tactic in which individuals are tricked into revealing critical financial or personal information to unauthorized entities. Vishing works like phishing but does not always occur over the Internet and is carried out using voice technology. A vishing attack can be conducted by voice email, VoIP (voice over IP), or landline or cellular telephone. The potential victim receives a message, often generated by speech synthesis, indicating that suspicious activity has taken place in a credit card account, bank account, mortgage account or other financial service in their name. The victim is told to call a specific telephone number and provide information to "verify identity" or to "ensure that fraud does not occur." If the attack is carried out by telephone, caller ID spoofing can cause the victim's set to indicate a legitimate source, such as a bank or a government agency.
Vishing is difficult for authorities to trace, particularly when conducted using VoIP. Furthermore, like many legitimate customer services, vishing scams are often outsourced to other countries, which may render sovereign law enforcement powerless.
Consumers can protect themselves by suspecting any unsolicited message that suggests they are targets of illegal activity, no matter what the medium or apparent source. Rather than calling a number given in any unsolicited message, a consumer should directly call the institution named, using a number that is known to be valid, to verify all recent activity and to ensure that the account information has not been tampered with.