System Analysis and Design

171. A cost benefit analysis consists of

  1. finding the direct and indirect cost of developing, implementing and running the system
  2. finding out the tangible and intangible benefit of the system
  3. finding the investment to be made in the system
  4. finding the profit which will accrue from the system
  1. iii and iv
  2. i and iv
  3. ii and iii
  4. i and ii
Correct answer: (D)
i and ii

172. By technical feasibility of a solution we mean that

  1. technology is available to implement it
  2. persons are available to implement it
  3. persons have technical ability to implement it
  4. funds are available to implement it
Correct answer: (A)
technology is available to implement it

173. In simple payback method one

  1. accounts for interest payments on benefits
  2. ignores interest payments
  3. only accounts for interest on capital investments
  4. only accounts for interest on recurring expenses
Correct answer: (B)
ignores interest payments

174. By operational feasibility we mean

  1. the system can be operated nicely
  2. the system is unusable by operators
  3. the system can be adapted by an organization without major disruptions
  4. the system can be implemented
Correct answer: (C)
the system can be adapted by an organization without major disruptions

175. In designing a system it is found that the cost of the system was Rs 1,50,000 and the benefit is Rs 10,000 per month. The interest is 1% per month; the payback period using payback method with interest is

  1. 14 months
  2. 17 months
  3. 15 months
  4. 20 months
Correct answer: (C)
15 months

176. Characteristics of good goals are that they

  1. are quantified
  2. improve quality
  3. are realizable within the constraints of the organization
  4. aim at an ideal system
  1. i and ii
  2. ii and iv
  3. ii and iii
  4. i and iii
Correct answer: (D)
i and iii

177. In a DFD external entities are represented by a

  1. rectangle
  2. ellipse
  3. diamond shaped box
  4. circle
Correct answer: (A)
rectangle

178. A data cannot flow between a store and

  1. a store
  2. a process
  3. an external entity
  1. i and iii
  2. i and ii
  3. ii and iii
  4. ii
Correct answer: (A)
i and iii

179. A context diagram

  1. describes the context of a system
  2. is a DFD which gives an overview of the system
  3. is a detailed description of a system
  4. is not used in drawing a detailed DFD
Correct answer: (B)
is a DFD which gives an overview of the system

180. Before developing a logical DFD it is a good idea to

  1. develop a physical DFD
  2. develop a system flow chart
  3. determine the contents of all data stores
  4. find out user’s preferences
Correct answer: (A)
develop a physical DFD
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