CAS-003 Dumps

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CompTIA CAS-003: CompTIA Advanced Security Practitioner (CASP)

QUESTION 251

A recent CRM upgrade at a branch office was completed after the desired deadline. Several technical issues were found during the upgrade and need to be discussed in depth before the next branch office is upgraded. Which of the following should be used to identify weak processes and other vulnerabilities?

Correct Answer: D

QUESTION 252

A security administrator notices a recent increase in workstations becoming compromised by malware. Often, the malware is delivered via drive-by downloads, from malware hosting websites, and is not being detected by the corporate antivirus. Which of the following solutions would provide the BEST protection for the company?

Correct Answer: B
The undetected malware gets delivered to the company via drive-by and malware hosing websites. Display filters and Capture filters when deployed on the cloud-based content should provide the protection required.
Incorrect Answers:
A: The company already has an antivirus application that is not detecting the malware, increasing the frequency of antivirus downloads and installing the updates will thus not address the issue of the drive-by downloads and malware hosting websites.
C: A WAF is designed to sit between a web client and a web server to analyze OSI Layer 7 traffic; this will not provide the required protection in this case. WAFs are not 100

QUESTION 253

The source workstation image for new accounting PCs has begun blue-screening. A technician notices that the date/time stamp of the image source appears to have changed. The desktop support director has asked the Information Security department to determine if any changes were made to
the source image. Which of the following methods would BEST help with this process? (Select TWO).

Correct Answer: AC
Running a file comparison analysis on the two images will determine whether files have been changed, as well as what files were changed.
Hashing can be used to meet the goals of integrity and non-repudiation. One of its advantages of hashing is its ability to verify that information has remained unchanged. If the hash values are the same, then the images are the same. If the hash values differ, there is a difference between the two
images.
Incorrect Answers:
B: Steganography is a type of data exfiltration. Data exfiltration is the unauthorized transfer of data from a computer.
D: According to the scenario, the desktop support director has asked the Information Security department to determine if any changes were made to the source image. Asking the desktop support if any changes to the images were made would therefore be redundant.
E: The question requires the Information Security department to determine if any changes were made to the source image, not when the date/time stamp manipulation occurred.
References:
Gregg, Michael, and Billy Haines, CASP CompTIA Advanced Security Practitioner Study Guide, John Wiley & Sons, Indianapolis, 2012, pp. 18, 134

QUESTION 254

An administrator is tasked with securing several website domains on a web server. The administrator elects to secure www.example.com, mail.example.org, archive.example.com, and www.example.org with the same certificate. Which of the following would allow the administrator to secure those domains with a single issued certificate?

Correct Answer: D
Subject Alternative Names let you protect multiple host names with a single SSL certificate. Subject Alternative Names allow you to specify a list of host names to be protected by a single SSL certificate. When you order the certificate, you will specify one fully qualified domain name in the common name field. You can then add other names in the Subject Alternative Names field.
Incorrect Answers:
A: An Intermediate Root Certificate is used to trust an intermediate CA (Certification Authority). The Intermediate root CA can issue certificates but the Intermediate Root Certificate itself cannot be
used to secure multiple domains on a web server.
B: A wildcard certificate can be used to secure multiple domain names within the same higher level domain. For example: a wildcard certificate “*.example.com” can secure an unlimited number of domains that end in ‘example.com’ such as domain1.example.com, domain2.example.com etc. A wildcard certificate cannot be used to secure the domains listed in this question.
C: The certificate used to secure the domains will be an x509 certificate but it will not be a standard EV certificate. EV stands for extended validation. With a non-EV certificate, the issuing CA just ensures that you own the domains that you want to secure. With an EV certificate, further checks are carried out such as checks on your company. EV certificates take longer to issue due to the extra checks but the EV certificate provides extra guarantees to your customers that you are who you say you are. However, a standard EV certificate only secures a single domain.

QUESTION 255

An administrator believes that the web servers are being flooded with excessive traffic from time to time. The administrator suspects that these traffic floods correspond to when a competitor makes major announcements. Which of the following should the administrator do to prove this theory?

Correct Answer: A
There is a time aspect to the traffic flood and if you correlate the data analytics with the times that the incidents happened, you will be able to prove the theory.
Incorrect Answers:
B: A honey pot is designed to attract traffic and this will not prove the theory.
C: Configuring any of your servers for high availability will only accommodate the competitor and not prove your theory.
D: Logging all incoming traffic will not prove the theory as you want to check whether the incidents occur when the competitor makes major announcement a not all of the incoming traffic, even it if is from the competitor.
References:
Gregg, Michael, and Billy Haines, CASP CompTIA Advanced Security Practitioner Study Guide, John Wiley & Sons, Indianapolis, 2012, pp. 114-115