List two disadvantges of a database system as compared to a file-based system.
Database systems are complex, difficult and time consuming. Damage to data base affects virtually all application progra…
List the basic difference between DOS and UNIX.
DOS is a single user operating system and UNIX is multiuser operating system.
What is ARP ? How it differ from IP?
ARP: Address Resolution Protocol is a computer networking protocol for determining a network host's hardware address w…
Is a two dimensional array passed as a value or reference argument to a function ?
Two dimensional arrays are passed as reference argument. If a two dimensional array is to be passed to a function, the pa…
What is a foreign key in an RDBMS?
A foreign key in a relation is an attribute which is primary key of some other relation.
Mention two advantages of a DBMS over a file storage of data.
Data redundary can be avoided by using DBMS. DBMS provide backup and recovery and concurrency control.
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