10Base2, also known as RG58, or thinnet, is limited to 185 meters. 10Base5, also known as RG8/RG11 or thicknet, is limited to 500 meters. 10BaseT is only limited to 100 meters. Note that the 2 in 10Base2 refers to the maximum cable length (200 meters, 185, actually) and the 5 in 10Base5 is for 500 meters. Source: ANDRESS, Mandy, Exam Cram CISSP, Coriolis, 2001, Chapter 3: Telecommunications and Network Security (page 32).

The retina, a thin nerve (1/50th of an inch) on the back of the eye, is the part of the
eye which senses light and transmits impulses through the optic nerve to the brain - the equivalent
of film in a camera. Blood vessels used for biometric identification are located along the neural
retina, the outermost of retina's four cell layers.
The following answers are incorrect:
The amount of light reaching the retina The amount of light reaching the retina is not used in the
biometric scan of the retina.
The amount of light reflected by the retina The amount of light reflected by the retina is not used in
the biometric scan of the retina.
The pattern of light receptors at the back of the eye This is a distractor
The following reference(s) were/was used to create this question:
Reference: Retina Scan Technology.
ISC2 Official Guide to the CBK, 2007 (Page 161)

Business continuity is of course a vital activity. However, prior to the creation of a business continuity plan, it is essential to consider the potential impacts of disaster and to understand the underlying risks. It is now widely accepted that both business impact analysis and risk analysis are vital components of the business continuity process. However, many organizations are unsure of how to approach these important disciplines. BIA is important because it provides management level analysis by which an organization assesses the quantitative (financial) and qualitative (non-financial) impacts, effects and loss that might result if the organization were to suffer a Business Continuity E/I/C. The findings from a BIA are used to make decisions concerning Business Continuity Management strategy and solutions.