strong entity set.
weak entity set.
simple entity set.
primary entity set.
B. weak entity set.
COUNT
COUNT(*)
MAX
none of these
Hashed file
B-tree
Ordered file
Unordered file
only i)
only i) ii)
only i) ii) iii)
i) ii) iii) iv)
in the left relation which didnt match with any tuple in right relation
in the left relation which matched with a tuple in right relation
in the right relation which didnt match with any tuple in left relation
in the right relation which matched with a tuple in left relation
temporarily
permanently
none of these
all of the above
producing detail, summary, or exception reports.
recording a business activity.
confirming an action or triggering a response.
maintaining data.
support end users who use English-like commands.
support in the development of complex applications software.
specify the structure of a database.
all of the above.
values.
distinct values.
groups.
columns.
i, ii only
ii and iv only
ii and iv only
i, iv only
VDL and DDL.
DDL and DML.
SDL and DDL.
VDL and DML.
B8ZS
Manchester
RZ
NRZ-L
first
Second
third
fourth
i and ii only
ii and iii only
i and iii only
iii and iv only
strong entity set.
weak entity set.
simple entity set.
primary entity set.
Allow
Access
Grant
none of the above
Graph.
List.
Links.
Tree.
Attenuation
Distortion
Delay
Noise
data file.
data record.
menu.
bank.
1
2
3
4
Attributes
Weak entity set
Relationship sets
Multi-valued attributes
Ring
Bus
Mesh
none of these
Data rate
Bit rate
Signal to Noise Ratio
Baud rate
first
second
third
fourth
3NF
2NF
1NF
none of the above
operating system
controller unit of the kernel
concurrency control component of the database system
none
direct.
hash.
random.
sequential.
i only
ii, only
ii, iii only
none of the above
2
3
4
5
Session layer
Presentation layer
Application layer
Transport layer
rectangle.
square.
ellipse.
triangle.