System Analysis and Design

251. It is necessary to carefully design data input to a computer based system because

  1. it is good to be careful
  2. the volume of data handled is large
  3. the volume of data handled is small
  4. data entry operators are not good
Correct answer: (B)
the volume of data handled is large

252. In interactive data input a menu is used to

  1. enter new data
  2. add/delete data
  3. select one out of many alternatives often by a mouse click
  4. detect errors in data input
Correct answer: (C)
select one out of many alternatives often by a mouse click

253. By the term "meaningful code” we understand that the code

  1. conveys information on item being coded
  2. is of small length
  3. can add new item easily
  4. includes all relevant characteristics of item being code
Correct answer: (A)
conveys information on item being coded

254. Significant codes are

  1. concise
  2. meaningful
  3. expandable
  4. comprehensive
  1. i and ii
  2. i, ii and iii
  3. ii, iii and iv
  4. i, ii and iv
Correct answer: (C)
ii, iii and iv

255. For modulus-11 check digit to detect a single transcription errors

  1. weights should all be distinct
  2. weights may all be equal and > 0
  3. weights should be less than 8
  4. weights should all be > 0 and distinct
Correct answer: (B)
weights may all be equal and > 0

256. A record total uses

  1. batch totals of selected fields
  2. count of numbers of records
  3. modulus-11 check digit sum of all fields
  4. total of selected fields of a record
Correct answer: (D)
total of selected fields of a record

257. Reasonableness checks for monthly mess bill of a student if daily rate is Rs. 40 is

  1. 1200
  2. 12000
  3. 120
  4. 2400
Correct answer: (D)
2400

258. In payroll record a reasonable inter-field relationship check is to relate salary field with

  1. age field
  2. department field
  3. designation field
  4. increment field
Correct answer: (C)
designation field

259. A data dictionary is useful as

  1. it is a documentation aid
  2. it assists in designing input forms
  3. it contains al data in an application including temporary data used in processes
  4. it is a good idea in system design
  1. (i) and (ii)
  2. (i) and (iv)
  3. (i),(ii) and (iii)
  4. (i) and (iv)
Correct answer: (B)
(i) and (iv)

260. In on-line data entry it is possible to

  1. Give immediate feedback if incorrect data is entered
  2. Eliminate all errors
  3. Save data entry operators time
  4. Eliminate forms
Correct answer: (A)
Give immediate feedback if incorrect data is entered
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