CompTIA Security+ Question D-66

Which of the following technologies can store multi-tenant data with different security requirements?

A. Data loss prevention
B. Trusted platform module
C. Hard drive encryption
D. Cloud computing

Answer: D

Explanation:
One of the ways cloud computing is able to obtain cost efficiencies is by putting data from various clients on the same machines. This “multitenant” nature means that workloads from different clients can be on the same system, and a flaw in implementation could compromise security.

CompTIA Security+ Question D-55

Which of the following has a storage root key?

A. HSM
B. EFS
C. TPM
D. TKIP

Answer: C

Explanation:
Trusted Platform Module (TPM) is a hardware-based encryption solution that is embedded in the system’s motherboard and is enabled or disable in BIOS. It helps with hash key generation and stores cryptographic keys, passwords, or certificates on non-volatile (NV) memory. Data stored on NV memory is retained unaltered when the device has no power. The storage root key is embedded in the TPM to protect TPM keys created by applications, so that these keys cannot be used without the TPM.

CompTIA Security+ Question C-18

Which of the following hardware based encryption devices is used as a part of multi-factor authentication to access a secured computing system?

A. Database encryption
B. USB encryption
C. Whole disk encryption
D. TPM

Answer: D

Explanation:
Trusted Platform Module (TPM) is a hardware-based encryption solution that is embedded in the system’s motherboard and is enabled or disable in BIOS. It helps with hash key generation and stores cryptographic keys, passwords, or certificates.

CompTIA Security+ Question B-32

Which of the following tools will allow a technician to detect security-related TCP connection anomalies?

A. Logical token
B. Performance monitor
C. Public key infrastructure
D. Trusted platform module

Answer: B

Explanation:
Performance Monitor in a Windows system can monitor many different ‘counters’. For TCP network connections, you can monitor specific TCP related counters including the following: Connection Failures Connections Active Connections Established Connections Passive Connections Reset Segments Received/sec Segments Retransmitted/sec Segments Sent/sec Total Segments/sec

By monitoring the counters listed above, you will be able to detect security-related TCP connection anomalies.

CompTIA Security+ Simulation 7

A Security administrator wants to implement strong security on the company smart phones and terminal servers located in the data center. Drag and Drop the applicable controls to each asset type.

Instructions: Controls can be used multiple times and not all placeholders needs to be filled. When you have completed the simulation, Please select Done to submit.

Correct Answer:


Cable locks are used as a hardware lock mechanism – thus best used on a Data Center Terminal Server.

Network monitors are also known as sniffers – thus best used on a Data Center Terminal Server.

Install antivirus software. Antivirus software should be installed and definitions kept current on all hosts. Antivirus software should run on the server as well as on every workstation. In addition to active monitoring of incoming fi les, scans should be conducted regularly to catch any infections that have slipped through- thus best used on a Data Center Terminal Server.

Proximity readers are used as part of physical barriers which makes it more appropriate to use on a center’s entrance to protect the terminal server.

Mentor app is an Apple application used for personal development and is best used on a mobile device such as a smart phone.

Remote wipe is an application that can be used on devices that are stolen to keep data safe. It is basically a command to a phone that will remotely clear the data on that phone. This process is known as a remote wipe, and it is intended to be used if the phone is stolen or going to another user.

Should a device be stolen, GPS (Global Positioning System) tracking can be used to identify its location and allow authorities to find it – thus best used on a smart phone.

Screen Lock is where the display should be configured to time out after a short period of inactivity and the screen locked with a password. To be able to access the system again, the user must provide the password. After a certain number of attempts, the user should not be allowed to attempt any additional logons; this is called lockout – thus best used on a smart phone.

Strong Password since passwords are always important, but even more so when you consider that the device could be stolen and in the possession of someone who has unlimited access and time to try various values – thus best use strong passwords on a smartphone as it can be stolen more easily than a terminal server in a data center.

Device Encryption- Data should be encrypted on the device so that if it does fall into the wrong hands, it cannot be accessed in a usable form without the correct passwords. It is recommended to you use Trusted Platform Module (TPM) for all mobile devices where possible.

Use pop-up blockers. Not only are pop-ups irritating, but they are also a security threat. Pop-ups (including pop-unders) represent unwanted programs running on the system, and they can jeopardize the system’s well-being. This will be more effective on a mobile device rather than a terminal server.

Use host-based firewalls. A firewall is the first line of defense against attackers and malware. Almost every current operating system includes a firewall, and most are turned on by Default- thus best used on a Data Center Terminal Server.

References:
Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, 6th Edition, Sybex,
Indianapolis