Thursday, March 1, 2018

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

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