If various sites are linked to one another, then the user at a site might access data that is present at some other site this is known as _______
If various sites are linked to one another, then the user at a site might access data that is present at some other site this is known as _______
In _________transparency The fact that the constituent databases are of different types; that the hardware systems are of different types etc. are not known to the users due to this feature of the DDBMS
In _________transparency The fact that the constituent databases are of different types; that the hardware systems are of different types etc. are not known to the users due to this feature of the DDBMS
The updation of data on more than two networked computer systems is termed as a ________transaction
The updation of data on more than two networked computer systems is termed as a ________transaction
______means The ability to track data distribution, replication and fragmentation by enlarging the DDBMS catalogue
______means The ability to track data distribution, replication and fragmentation by enlarging the DDBMS catalogue
______processing means the capability to transmit queries and access remote sites between different sites via communication network.
______processing means the capability to transmit queries and access remote sites between different sites via communication network.
In _______ pages, entries are designed/planned by properties to locate entries matching particular requirements
In _______ pages, entries are designed/planned by properties to locate entries matching particular requirements
In the ________interface the end users are free to have interfaces of their own choice at their sites
In the ________interface the end users are free to have interfaces of their own choice at their sites
The entire database is controlled by a single site and hence is known as _______ Database System
The entire database is controlled by a single site and hence is known as _______ Database System
Vertical fragmentation is similar as __________.
Vertical fragmentation is similar as __________.
___________ transparancy feature permits a transaction to be executed either completely or not at all just as in case of a local database system
___________ transparancy feature permits a transaction to be executed either completely or not at all just as in case of a local database system
.______is a Cost of time required and total expenditure to transmit a message from site ‘A’ to site ‘B’
.______is a Cost of time required and total expenditure to transmit a message from site ‘A’ to site ‘B’
________feature permits the distributed database to continue to be operational even if there is a failure at some nodes.
________feature permits the distributed database to continue to be operational even if there is a failure at some nodes.
___________ transparancy feature permits one distributed database to be treated as a single (albeit logical) database
___________ transparancy feature permits one distributed database to be treated as a single (albeit logical) database
______ means the frequency of failures in link or sites
______ means the frequency of failures in link or sites
Database management system that resides entirely on a machine different from that of the user connected through a network is known as ________database
Database management system that resides entirely on a machine different from that of the user connected through a network is known as ________database
______meansThe level at which data could be accessed in spite of the malfunction of some sites or link
______meansThe level at which data could be accessed in spite of the malfunction of some sites or link
_____ is the cost of connecting the sites physically in system
_____ is the cost of connecting the sites physically in system
__________ transparency permits a physically dispersed database to be managed as though it were a centralised database
__________ transparency permits a physically dispersed database to be managed as though it were a centralised database
It is more costly and also tough to implement a distributed database system as compared to _______local database.
It is more costly and also tough to implement a distributed database system as compared to _______local database.
Replication comes in helpful, when you want to improve the _______ of data
Replication comes in helpful, when you want to improve the _______ of data