System Analysis and Design

231. The following structural English is incorrect because
case (income slab)
Income slab =1 : tax= 10%
Income slab =2 or 3 : tax= 20%
Income slab =5 : tax= 30%
end case

  1. no action is specified for income slab of 4
  2. income slab has to be rupees
  3. income slab =2 or 3 is wrong
  4. number of cases is too small
Correct answer: (A)
no action is specified for income slab of 4

232. In a limited entry decision table the action stub

  1. lists X or - corresponding to actions to be executed
  2. lists the conditions to be tested
  3. has Y or N or - entries
  4. lists the actions to be taken
Correct answer: (D)
lists the actions to be taken

233. In "test 4" missing rule is:

  1. NYNN
  2. NYYN
  3. YYNN
  4. YNYN
Correct answer: (C)
YYNN

234. In "test 4" the contradictory actions are:

  1. A1, A3
  2. A1, A2
  3. A2, A3
  4. A2, I
Correct answer: (B)
A1, A2

235. Decision tables are better then Decision trees when

  1. Conditions are to be isolated from actions in a word statement
  2. Condition sequences are to be found from a word statement
  3. Logical correctness of a word statement is to be established
  4. Large number of actions is to be performed
Correct answer: (C)
Logical correctness of a word statement is to be established

236. Rule R1 is interpreted as follows:

  1. If C1 is TRUE and C2 is FALSE then perform action A2
  2. If C1 is TRUE and C2 is FALSE then perform action A1 and then action A2
  3. If C1 is TRUE and C2 is FALSE then perform action A3 and then action A1
  4. If C1 is TRUE and C2 is FALSE then perform action A1 and then action A3
Correct answer: (D)
If C1 is TRUE and C2 is FALSE then perform action A1 and then action A3

237. Decision table "test2" is

  1. really incomplete
  2. complete
  3. apparently incomplete
  4. apparently complete
Correct answer: (C)
apparently incomplete

238. The decision table given in answer (a) of question 9.4.3 is

  1. incomplete
  2. apparently ambiguous
  3. has contradictory specifications
  4. logically complete
Correct answer: (D)
logically complete

239. The decision table "test 3" is

  1. incomplete
  2. ambiguous
  3. incorrect
  4. has redundancies
Correct answer: (D)
has redundancies

240. Decision Trees are preferred when

  1. Too many conditions need to be tested
  2. Sequencing of testing conditions is important
  3. When there are many loops to be performed
  4. When too many actions are to be taken
Correct answer: (B)
Sequencing of testing conditions is important
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