Achief information security officer (ciso) needs to establish a kri for a particular system. the system holds archives of contracts that are no longer in use. the contracts contain intellectual property and have a data classification of non-public. which of the following be the best risk indicator for this system?

(a) average minutes of downtime per quarter
(b) percent of patches applied in the past 30 days
(c) count of login failures per week
(d) number of accounts accessing the system per day

5.a fishing rod is formed from a composite material of 0.5 kg of glass fibers embedded in a matrix of 0.5 kg of epoxy resin. the glass fibers are assumed to be long, continuous and unidirectional. to achieve a greater stiffness it is proposed to use a different composite that is comprised of long continuous carbon fibers that will be embedded in a matrix of 0.5 kg of epoxy resin. if the modulus of elasticity of the carbon fiber composite is 10% greater than the elastic modulus of the glass fiber composite, estimate the mass of carbon fibers that will be used to make the carbon fiber composite. assume the applied tensile stress is parallel to the direction of the long axis of the fibers. the epoxy resin, glass fiber, and carbon fiber have an elastic modulus of 5, 86, and 350 gpa respectively and a density of 1100, 2500, and 1800 respectively.