Master/slave multiprocessor organizations __________.
a) exhibit high fault tolerance
b) enable many processors to execute the operating system, reducing the likelihood that contention will build up for operating system resources.
c) exploit hardware asymmetry (e.g., if one processor is more powerful than other processors) and known parallelism in computationally-intensive tasks.
d) exhibit high scalability, where adding a processor increases the system throughput by the new processor’s rated capacity.
c) exploit hardware asymmetry (e.g., if one processor is more powerful than other processors) and known parallelism in computationally-intensive tasks.
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Below is an excerpt from a system design document for an accident management system. It is a natural language description of the rationale for a relational database for permanent storage. Model this rationale with issues, proposals, arguments, criteria, and resolutions:
One fundamental issue in database design was database engine realization. The initial nonfunctional requirements on the database subsystem insisted on the use of an object- oriented database for the underlying engine. Other possible options included using a relational database, a file system, or a combination of the other options. An object- oriented database has the advantages of being able to handle complex data relationships and is fully buzzword compliant. On the other hand, OO databases may be too sluggish for large volumes of data or high- frequency accesses. Furthermore, existing products do not integrate well with CORBA, because that protocol does not support specific programming language features such as Java associations. Using a relational database offers a more robust engine with higher performance characteristics and a large pool of experience and tools to draw on. Furthermore, the relational data model integrates nicely with CORBA. On the downside, this model does not easily support complex data relationships. The third option was proposed to handle specific types of data that are written once and read infrequently. This type of data (including sensor readings and control outputs) has few relationships with little complexity and must be archived for extended periods of time. Files offer an easy archival solution and can handle large amounts of data. Conversely, any code would need to be written from scratch, including serialization of access. We decided to use only a relational database, based on the requirement to use CORBA and in light of the relative simplicity of the relationships between the system’s persistent data.
Orange is the emblematic color of Irish Protestants, what is the color used by Irish Catholics? ____________.
a. orange b. red c. green d. none of the above