CompTIA CompTIA Security+ RC0-501 Questions & Answers

• Question 331:

  A new intern in the purchasing department requires read access to shared documents. Permissions are normally controlled through a group called "Purchasing", however, the purchasing group permissions allow write access. Which of the following would be the BEST course of action?

  A. Modify all the shared files with read only permissions for the intern.

  B. Create a new group that has only read permissions for the files.

  C. Remove all permissions for the shared files.

  D. Add the intern to the "Purchasing" group.

  Correct Answer: B

• Question 332:

  A business has recently deployed laptops to all sales employees. The laptops will be used primarily from home offices and while traveling, and a high amount of wireless mobile use is expected. To protect the laptops while connected to untrusted wireless networks, which of the following would be the BEST method for reducing the risk of having the laptops compromised?

  A. MAC filtering

  B. Virtualization

  C. OS hardening

  D. Application white-listing

  Correct Answer: C

• Question 333:

  Which of the fallowing security controls does an iris scanner provide?

  A. Logical

  B. Administrative

  C. Corrective

  D. Physical

  E. Detective

  F. Deterrent

  Correct Answer: D

• Question 334:

  During a data breach cleanup, it is discovered that not all of the sites involved have the necessary data wiping tools. The necessary tools are quickly distributed to the required technicians, but when should this problem BEST be revisited?

  A. Reporting

  B. Preparation

  C. Mitigation

  D. Lessons Learned

  Correct Answer: D

• Question 335:

  Select the appropriate attack from each drop down list to label the corresponding illustrated attack Instructions: Attacks may only be used once, and will disappear from drop down list if selected. When you have completed the simulation, please select the Done button to submit.

  Hot Area:

  

  Correct Answer:

  

  

  1: Spear phishing is an e-mail spoofing fraud attempt that targets a specific organization,seeking unauthorized access to confidential data. As with the e-mail messages used in regular phishing expeditions, spear phishing messages appear to

  come from a trusted source. Phishing messages usually appear to come from a large and well-known company or Web site with a broad membership base, such as eBay or PayPal. In the case of spear phishing, however, the apparent source

  of the e-mail is likely to be an individual within the recipient's own company and generally someone in a position of authority.

  2: The Hoax in this question is designed to make people believe that the fake AV (antivirus) software is genuine.

  3: Vishing is the act of using the telephone in an attempt to scam the user into surrendering private information that will be used for identity theft. The scammer usually pretends to be a legitimate business, and fools the victim into thinking he

  or she will profit.

  4: Phishing is the act of sending an email to a user falsely claiming to be an established legitimate enterprise in an attempt to scam the user into surrendering private information that will be used for identity theft.

  Phishing email will direct the user to visit a website where they are asked to update personal information, such as a password, credit card, social security, or bank account numbers, that the legitimate organization already has. The website,

  however, is bogus and set up only to steal the information the user enters on the page.

  5: Similar in nature to e-mail phishing, pharming seeks to obtain personal or private (usually financial related) information through domain spoofing. Rather than being spammed with malicious and mischievous e-mail requests for you to visit

  spoof Web sites which appear legitimate, pharming 'poisons' a DNS server by infusing false information into the DNS server, resulting in a user's request being redirected elsewhere. Your browser, however will show you are at the correct

  Web site, which makes pharming a bit more serious and more difficult to detect. Phishing attempts to scam people one at a time with an e-mail while pharming allows the scammers to target large groups of people at one time through domain

  spoofing.

  References:

  http://searchsecurity.techtarget.com/definition/spear-phishing

  http://www.webopedia.com/TERM/V/vishing.html

  http://www.webopedia.com/TERM/P/phishing.html

  http://www.webopedia.com/TERM/P/pharming.html

• Question 336:

  The security administrator has installed a new firewall which implements an implicit DENY policy by default. Click on the firewall and configure it to allow ONLY the following communication.

  1.

  The Accounting workstation can ONLY access the web server on the public network over the default HTTPS port. The accounting workstation should not access other networks.

  2.

  The HR workstation should be restricted to communicate with the Financial server ONLY, over the default SCP port

  3.

  The Admin workstation should ONLY be able to access the servers on the secure network over the default TFTP port.

  Instructions: The firewall will process the rules in a top-down manner in order as a first match The port number must be typed in and only one port number can be entered per rule Type ANY for all ports. The original firewall configuration can

  be reset at any time by pressing the reset button. Once you have met the simulation requirements, click save and then Done to submit.

  

  

  Hot Area:

  

  Correct Answer:

  

  

  Implicit deny is the default security stance that says if you aren't specifically granted access or privileges for a resource, you’re denied access by default.

  Rule #1 allows the Accounting workstation to ONLY access the web server on the public network over the default HTTPS port, which is TCP port 443.

  Rule #2 allows the HR workstation to ONLY communicate with the Financial server over the default SCP port, which is TCP Port 22

  Rule #3 and Rule #4 allow the Admin workstation to ONLY access the Financial and Purchasing servers located on the secure network over the default TFTP port, which is Port 69.

  References:

  Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, pp.26, 44

  http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers

• Question 337:

  For each of the given items, select the appropriate authentication category from the dropdown choices. Instructions: When you have completed the simulation, please select the Done button to submit.

  

  Hot Area:

  

  Correct Answer:

  

  Something you are includes fingerprints, retina scans, or voice recognition.

  Something you have includes smart cards, token devices, or keys.

  Something you know includes a passwords, codes, PINs, combinations, or secret phrases.

  Somewhere you are includes a physical location s or logical addresses, such as domain name, an IP address, or a MAC address.

  Something you do includes your typing rhythm, a secret handshake, or a private knock.

  References:

  Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, p. 285

• Question 338:

  For each of the given items, select the appropriate authentication category from the drop down choices.

  

  Select the appropriate authentication type for the following items:

  Hot Area:

  

  Correct Answer:

  

  Biometrics refers to a collection of physical attributes of the human body that can be used as identification or an authentication factor. Fingerprints and retinas are physical attributes of the human body.

  Two types of tokens exist, Time-based one-time password (TOTP) tokens and HMACbased one-time password (HOTP). TOTP tokens generate passwords at fixed time intervals, whereas HOTP tokens generate passwords not based on fixed

  time intervals but instead based on a non-repeating one-way function, such as a hash or HMAC operation.

  Smart cards can have Multi-factor and proximity authentication embedded into it.

  PAP allows for two entities to share a password in advance and use the password as the basis of authentication. The same goes for PIN numbers.

  References:

  Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, pp. 282, 285

  http://en.wikipedia.org/wiki/Password_authentication_protocol#Working_cycle

  http://en.wikipedia.org/wiki/Smart_card#Security

• Question 339:

  A security administrator discovers that an attack has been completed against a node on the corporate network. All available logs were collected and stored.

  You must review all network logs to discover the scope of the attack, check the box of the node(s) that have been compromised and drag and drop the appropriate actions to complete the incident response on the network. The environment is

  a critical production environment; perform the LEAST disruptive actions on the network, while still performing the appropriate incident responses.

  Instructions: The web server, database server, IDS, and User PC are clickable. Check the box of the node(s) that have been compromised and drag and drop the appropriate actions to complete the incident response on the network. Not all

  actions may be used, and order is not important. If at anytime you would like to bring back the initial state of the simulation, please select the Reset button. When you have completed the simulation, please select the Done button to submit.

  

  Once the simulation is submitted, please select the Next button to continue.

  Correct Answer:

  Database server was attacked; actions should be to capture network traffic and Chain of Custody.

  (The database server logs shows the Audit Failure and Audit Success attempts)It is only logical that all the logs will be stored on the database server and the least disruption action on the network to take as a response to the incident would be

  to check the logs (since these are already collected and stored) and maintain a chain of custody of those logs.

  

  

  IDS Server Log:

  

  Web Server Log: Database Server Log:

  

  

  Users PC Log:

  

• Question 340:

  You have just received some room and WiFi access control recommendations from a security consulting company. Click on each building to bring up available security controls. Please implement the following requirements:

  The Chief Executive Officer's (CEO) office had multiple redundant security measures installed on the door to the office. Remove unnecessary redundancies to deploy three-factor authentication, while retaining the expensive iris render.

  The Public Cafe has wireless available to customers. You need to secure the WAP with WPA and place a passphrase on the customer receipts.

  In the Data Center you need to include authentication from the "something you know" category and take advantage of the existing smartcard reader on the door.

  In the Help Desk Office, you need to require single factor authentication through the use of physical tokens given to guests by the receptionist.

  The PII Office has redundant security measures in place. You need to eliminate the redundancy while maintaining three-factor authentication and retaining the more expensive controls.

  

  Instructions: The original security controls for each office can be reset at any time by selecting the Reset button. Once you have met the above requirements for each office, select the Save button. When you have completed the entire simulation, please select the Done button to submit. Once the simulation is submitted, please select the Next button to continue.

  

  

  Correct Answer:

  See the solution below.