Computer Quiz

Q1. In SQL, which command is used to change data in a data table?
A. UPDATE 
B. INSERT 
C. BROWSE
D. APPEND 
E. None of these

Q2. Local variables
A. Are created outside a block 
B. Are known only to that block
C. Continue to exist when their block ends 
D. Are illegal in C++
E. None of these

Q3. This ___ data mining technique derives rules from real world case examples.
A. Waterfall model 
B. RAD 
C. White Box
D. Spiral model 
E. Case based reasoning

Q4. Rows of a relation are called:
A. Relation 
B. Tuples 
C. Data structure
D. An entity 
E. None of these

Q5. Which layer of OSI determines the interface of the system with the user?
A. Network 
B. Application 
C. Data link
D. Session 
E. None of these

Q6. Aggregation is a special form of
A. Generalization 
B. Specialization 
C. Association
D. Object 
E. None of these

Q7. Which of the following is a universal gate?
A. AND 
B. OR 
C. EXOR
D. NAND 
E. None of these

Q8. A collection of fields is called a record with respect of DBMS, a record corresponds to
A. Tuple 
B. Relation 
C. File
D. Attribute 
E. None of these.

Q9. Multiplexer means 
A. One into many 
B. Many into one 
C. Many into many
D. All of these 
E. None of these

Q10. Each node in a linked list must contain at least:
A. Three fields 
B. Five fields 
C. Four fields
D. One fields 
E. Two fields

Answers:

Q1 – A
Q2 – B
Q3 – E
Q4 – B
Q5 – B
Q6 – C
Q7 – D
Q8 – A
Q9 – B
Q10 – E