You want a system to have at least 99.5% reliability.  The system is to be implemented using replicated instances of a component, but a single instance of that component has only 90% reliability.  If the system will work as long as at least one of the components is working, no other failures are relevant, and component failures are independent, what is the minimum number of component instances (total, including the first component) that must be in the system?

Which one is a key characteristic of a publish-subscribe system?

Imagine we are using Chord and performing a lookup for key 12. Given this Chord finger table, showing i and succ(p + 2^(i-1)): 1: 9 2: 9 3: 9 4: 14 5: 20 Which node will be selected next for investigation?

One decentralized mutual exclusion approach we discussed involved replicating a resource N times, where access requires a majority vote from m > N/2 coordinators. What is the impact of increasing m if all other parameters were kept the same?

In a RESTful API:

Order: Midazolam 0.5 mg/kg PO for a 33‑lb child. Supplied: 2 mg/mL. Place your number answer only in the text box and add the mg/ml on your paper. Do not round up.  

Order: Ibuprofen 120 mg PO Q8H for a 33‑lb child. Safe: 5–10 mg/kg/dose Q6–8H (max 40 mg/kg/day).  Provide the low safe dose range as your first text box.  Place the high range number only in the second box.  Then indicate yes (safe)  or no if it is in the safe dose range to be administered in the third box.  

Infuse Protonix 40 mg in 50 mL over 20 minutes IVPB. Place the number only in the text box.  On your paper, indicate the answer and ml/hr.  

In almost all original state constitutions, as well as the Articles of Confederation, where was most of the power placed?

The Bill of Rights limits the power of which of the following?