Information Technology Flashcards
BEC
Which IT personnel roles should always be segregated?
Operators
Programmers
Librarians
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What are the duties of a systems analyst?
Designs or purchases IT system
Responsible for flowcharts
Liaison between Users and Programmers
Note: Think IT Manager
BEC
What is the primary duty of a Systems Administrator?
A Systems Administrator controls database access.
BEC
What are the duties of a Systems Programmer?
Writes- Updates- Maintains- & Tests software- systems- and compilers
BEC
Which duties should a Systems Programmer NOT have?
In order to maximize internal control- a Systems Programmer should NOT have application programming duties/abilities or be an Operator on the system.
BEC
What are the duties of a Systems Operator?
Schedules and Monitors Jobs
Runs IT Help Desk
BEC
What duties should a System Operator NOT have?
For internal control purposes- they should not be a Programmer on the system.
BEC
If it is not possible to segregate duties in an IT System- what actions should be taken to compensate for internal control purposes?
Include Computer Logs.
Control Group should review the logs.
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What is the purpose of a Management Information System (MIS)?
To assist with decision making.
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What is an Accounting Information System (AIS)?
A type of Management Information System (MIS) that processes accounting transactions.
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What are the characteristics of an Executive Information System (EIS)?
Specialized for Company Executive needs
Assists with Strategy Only
No Decision-Making Capabilities
BEC
What are the characteristics of an Expert System (ES)?
Computer uses reasoning
Structured
No human interpretation needed
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What are the characteristics of a Decision Support System (DSS)?
Computer provides data
Gives Interactive Support
Human interpretation needed
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What are the characteristics of an Ad Hoc computer report?
User initiates the report.
The report is created upon demand.
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When are Exception reports generated?
Exception reports are produced when Edit Tests- Check Digits- or Self-Checking Digits identify a problem
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What is a query?
A type of Ad Hoc report- initiated by a user.
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What is End-User Computing?
The User develops and executes their own application.
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What is the primary benefit of E-commerce?
E-commerce makes business transactions easier.
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What are the risks of E-commerce?
Compromised data or theft.
Less paper trail for auditors.
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What are the benefits of Electronic Data Interchange?
Uses globally-accepted standards
Efficient
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What is a File Server?
A file server stores shared programs and documents.
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What is the purpose of a Database?
Located on a File Server- a Database allows users to share documents.
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What is the purpose of a LAN (Local Area Network)?
It connects computers in close proximity.
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What is the purpose of a WAN (Wide Area Network)?
It connects computers that are far apart.
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What are the characteristics of a VAN (Value-Added Network)?
Privately-owned Network
Serves as 3rd Party Between 2 Companies
Routes EDI Transactions
Accepts wide range of Protocols
Very Costly
BEC
What is the purpose of a Firewall?
Prevents unauthorized access to a network.
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What are the characteristics of a virus?
Takes over a computer
Needs a host program to run
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What are the characteristics of a computer worm?
Takes over multiple computers
Doesn’t need a host program to run