Professional Knowledge Questions for IBPS SO IT Mains 2017

Q1. Which of the following are two most important network architecture or reference model?
i) Layered reference model
ii) OSI reference model
iii) DSL reference model
iv) TCP/IP reference model
(a) i and ii
(b) ii and iii
(c) iii and iv
(d) ii and iv
(e) only iii

Q2. CREATE TABLE Employee(Emp_id NUMERIC NOT NULL, Name VARCHAR(20) , dept_name VARCHAR(20), Salary NUMERIC UNIQUE(Emp_id,Name));
INSERT INTO Employee VALUES(1002, Ross, CSE, 10000)
INSERT INTO Employee VALUES(1006,Ted,Finance, );
INSERT INTO Employee VALUES(1002,Rita,Sales,20000);


Consider the given SQL statements in the description. What will be the result of the query?
(a) All statements executed
(b) Error in create statement
(c) Error in insert into Employee values(1006,Ted,Finance, );
(d) Error in insert into Employee values(1008,Ross,Sales,20000);
(e) Error in Create Table;


Q3. A variable X is called pointer if:
(a) X contains the address of an element in data
(b) X points to the address of first element in data
(c) X can store only memory addresses
(d) X contain the data and the address of data
(e) X cannot store a value more than 1 bit.

Q4. Which among the following operation cannot be performed on a queue?
(a) Traversal
(b) Insertion
(c) Deletion
(d) Retrieval
(e) All of the above operations are performed on a queue


Q5. Which of the following is used to get back all the transactions back after rollback?
(a) Commit
(b) Rollback
(c) Flashback
(d) Redo
(e) Save


Q6. Which among the following is an example of a network database?
(a)Unify
(b)Ingress
(c)IDMS
(d)MySQL
(e)Both (a) and (b)


Q7. Which of the following is IaaS service provider?
(a) EC2
(b) EC1
(c) EC10
(d) Hybrid
(e) Both (a) and (b)


Q8. Which statement is true regarding synonyms?
(a) Synonyms can be created for tables but not views
(b) Synonyms are used to reference only those tables that are owned by another user
(c) A public synonym and a private synonym can exist with the same name for the same table
(d) The DROP SYNONYM statement removes the synonym, and the status of the table on which the synonym has been created becomes invalid
(e) All of the given statements are true


Q9. A binary search tree whose left subtree and right subtree in differ in height by at most 1 unit is called _______.
(a) Lemma Tree
(b) Redblack Tree
(c) AVL Tree
(d) Both (a) and (c)
(e) None of the above


Q10. What does Rollback do after commit?
(a) Undo the transactions before commit
(b) Clears all transactions
(c) Redo the transactions before commit
(d) No action
(e) Redo (one) previous transaction

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