System Analysis and Design

271. In significant codes some or all parts of the code

1. are meaningful
2. are usable
3. are significant
4. represent values

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272. Modulus-11 check digit for the code 45672 is

1. 0
2. 1
3. 2
4. 3

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273. A batch control record uses

1. Batch totals of selected fields
2. A simple count of number of records in a batch
3. Modulus-11 check digit of each key field
4. Totals of selected fields of record totalled for the batch

1. i and ii
2. i, ii, iv
3. i, ii, iii, iv
4. iii and iv

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274. If records are out-of-order then error may be detected by

1. batch control totals
2. radix check
3. sequence number check
4. range check

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275. A data dictionary is usually developed

1. At requirements specification phase
2. During feasibility analysis
3. When DFD is developed
4. When a datadase is designed

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276. By the term "expandable 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 coded

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277. The main problems encountered in off-line data entry are:

1. Data are entered by operators
2. Data entered by hand in forms batched and forms may be missed or misread
3. Errors are detected after a lapse of time
4. Data are entered by users

1. i and ii
2. i and iii
3. ii and iii
4. iii and iv

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278. By the term "concise 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 coded

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279. Errors in codes are detected by

1. proper design of code
2. introducing redundant digits/characters designed to detect errors
3. making the code concise
4. making the code precise

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280. If a field is known to represent an angle of a triangle, radix used to check should be

1. 90
2. 60
3. 180
4. 360

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