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Q:

___________ is an object model language standard.

A) Data definition language B) Query language
C) Data manipulation language D) OQL
 
Answer & Explanation Answer: D) OQL

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Q:

________ perform Internet Protocol blocking to protect networks from unauthorized access.

A) Firewalls B) Proxy Servers
C) Routers D) VoIP
 
Answer & Explanation Answer: A) Firewalls

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Q:

Which of the following statement is true?

A) A Primary key is also a candidate key B) Each relation has at least one foreign key
C) Foreign keys can't have null values D) A Primary key is also an alternate key
 
Answer & Explanation Answer: A) A Primary key is also a candidate key

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Q:

_________ software are freely available and can be edited and customized by anyone.

A) Free Source B) Open Source
C) Easy Source D) Unpaid Source
 
Answer & Explanation Answer: B) Open Source

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Q:

Which system is used by the Digital Computers to encode data and Programs?

A) Decimal B) Binary
C) Hexa decimal D) Octal
 
Answer & Explanation Answer: B) Binary

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Q:

After a credit card transaction has been authorized by theissuing bank by sending an authorization code to themerchant, the settlement stage of the process begins. Whichof the following is a system type used to process suchstatements?

A) Multitasking B) Memory Processing
C) Level Processing D) Batch Processing
 
Answer & Explanation Answer: D) Batch Processing

Explanation:

After a credit card transaction has been authorized bythe issuing bank by sending an authorization code tothe merchant, the settlement stage of the processbegins. This is called batch processing because anumber (or batch) of transactions is settled all at onetime.

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Q:

Punched card is also called

A) Hollerith card B) Video card
C) Sound card D) Accelerator card
 
Answer & Explanation Answer: A) Hollerith card

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Q:

The Incident Command System (ICS) is

The Incident Command System (ICS) is

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