CompTIA Security+ Question G-8

Which of the following is the primary security concern when deploying a mobile device on a network?

A. Strong authentication
B. Interoperability
C. Data security
D. Cloud storage technique

Answer: C

Explanation:
Mobile devices, such as laptops, tablet computers, and smartphones, provide security challenges above those of desktop workstations, servers, and such in that they leave the office and this increases the odds of their theft which makes data security a real concern. At a bare minimum, the following security measures should be in place on mobile devices: Screen lock, Strong password, Device encryption, Remote Wipe or Sanitation, voice encryption, GPS tracking, Application control, storage segmentation, asses tracking and device access control.

CompTIA Security+ Question E-77

Elastic cloud computing environments often reuse the same physical hardware for multiple customers over time as virtual machines are instantiated and deleted. This has important implications for which of the following data security concerns?

A. Hardware integrity
B. Data confidentiality
C. Availability of servers
D. Integrity of data

Answer: B

Explanation:
Data that is not kept separate or segregated will impact on that data’s confidentiality maybe being compromised. Be aware of the fact that your data is only as safe as the data with which it is integrated. For example, assume that your client database is hosted on a server that another company is also using to test an application that they are creating. If their application obtains root-level access at some point (such as to change passwords) and crashes at that point, then the user running the application could be left with root permissions and conceivably be to access data on the server for which they are not authorized, such as your client database. Data segregation is crucial; keep your data on secure servers.

CompTIA Security+ Question B-82

Which of the following data security techniques will allow Matt, an IT security technician, to encrypt a system with speed as its primary consideration?

A. Hard drive encryption
B. Infrastructure as a service
C. Software based encryption
D. Data loss prevention

Answer: A

Explanation:
Disk and device encryption encrypts the data on the device. This feature ensures that the data on the device cannot be accessed in a useable form should the device be stolen. It should be implemented using a hardware-based solution for greater speed.