BEC 6 M5: Processing Integrity

Question 1

Three components of a system

Answer 1

1. input
2. output
3. process

Question 2

Typical input controls

Answer 2

1. data validation at the field level (edit checks, meaningful error messages, etc.)
2. prenumbering forms to prevent incompleteness or duplicates
3. well-defined source data preparation procedures use to collect and prepare source documents

Question 3

processing controls

Answer 3

1. data matching
2. file labels
3. recalculation of batch/hash totals
4. cross-footing and zero-balance tests
5. Write-protection mechanisms
6. database processing integrity procedures

Question 4

Output controls

Answer 4

1. user review of output
2. reconciliation procedures
3. external data reconciliation
4. output encryption

Question 5

Database processing Integrity Procedures

Answer 5

1. admin establishes/enforces procedures for accessing/updating database
2. data dictionary ensures data items are defined and used consistently
3. concurrent update controls to prevent multiple users attempting to update the same record concurrently

Question 6

What does continuous processing integrity mean?

Answer 6

have data integrity that is consistent and accurate throughout processing cycle

Question 7

diagnostic controls

Answer 7

designed to achieve efficiency in operations of the form to get the most from resources used. compares actual performance with planned performance

Question 8

application programer

Answer 8

responsible for writing and/or maintaining application programs

Question 9

systems programmer

Answer 9

responsible for installing, supporting (troubleshooting), monitoring, and maintaining the operating system

Question 10

computer operators

Answer 10

responsible for scheduling and running processing jobs (usually automated)

Question 11

File Librarian

Answer 11

store and protect programs from damage and unauthorized use

Question 12

Data Librarian

Answer 12

has cusotdy of and maintains the entity’s data and ensures that production data is released only to authorized individuals (usually automated)

Question 13

Security administrator

Answer 13

assigns initial passwords and maintenance of passwords

Question 14

end user

Answer 14

anybody who enters data into a system or who use the info processed by the system

Question 15

Issue with system analyst and computer programmer being the same person

Answer 15

the person could easily bypass security systems because they are incharge of both hardware and software

Question 16

Issues with computer operators and computer programmers being the same person

Answer 16

person could make unauthorized and undetected program changes

Question 17

problem being the security admin and computer operator/programer

Answer 17

this person could give himself or another access to areas they are not authorized to enter

Question 18

primary objective of data security controls

Answer 18

ensure that storage media are subject to authorization prior to access, change or destruction

Question 19

batch totals

Answer 19

totals of dollar fields in transactions

Question 20

hash totals

Answer 20

totals of fields in transactions other than dollars

Question 21

grandfather-father-son file rotation prcedure

Answer 21

can be used to either recover from processing problems or retain files off-site for disaster recovery

Question 22

four major functions of transaction processing

Answer 22

1. data storage
2. data input
3. data processing
4. info output