Which of the following statements is true of Hadoop? A) Hadoop ...

[rosent76]

Which of the following statements is true of Hadoop?
 
  A) Hadoop is written in C++ and runs on Linux.
  B) Hadoop includes a query language called Big.
  C) Hadoop is an open source program that implements MapReduce.
  D) Technical skills are not required to run and use Hadoop.

Question 2

What are the biggest challenges for managing a large-scale systems development project?
 
  What will be an ideal response?

[janeli]

Answer to Question 1

C

Answer to Question 2

The challenges of managing large-scale systems development projects arise from four
different factors: coordination, diseconomies of scale, configuration control, and unexpected
events. Large-scale projects are usually organized into a variety of development groups that work
independently. Coordinating the work of these independent groups can be difficult, particularly if
they reside in different geographic locations or different countries. An accurate and complete
work breakdown structure (WBS) facilitates coordination, but no project ever proceeds exactly
in accordance with the WBS. The coordination problem is increased because software is purethought stuff. Another problem is diseconomies of scale. Adding more people to a project
increases coordination requirements. The number of possible interactions among team members
rises exponentially with the number of team members. Ultimately, no matter how well managed
a project is, diseconomies of scale will set in. Also, as the project proceeds, controlling the
configuration of the work product becomes difficult. Problems can occur with designs, program
code, database data, and other system components. Configuration control is vital here. The last
major challenge to large-scale project management is unexpected events. The larger and longer a
project lasts, the greater the chance of disruption due to an unanticipated event.