Specialist Officer IT Previous Year Questions - 2

1. Override is a method
1. For an operation that replaces an inherited method for the same operation
2. For a data that replaces an inherited method for the same operation
3. For an operation that takes arguments form library function
4. All of these
5. None of these
2. Local variables
1. Are created outside a block
2. Are known only to that block
3. Continue to exist when their block ends
4. Are illegal in C++
5. None of these
3. ____ is virus that inserts itself into a system’s memory. Then it take number of actions when an infected file is executed.
1. Web scripting virus
2. Polymorphic virus
3. Macro virus
4. Boot sector virus
5. Resident virus
4. This ___ data mining technique derives rules from real world case examples.
1. Waterfall model
2. RAD
3. White Box
4. Spiral model
5. Case based reasoning
5. The ___ remains operative until the software is required.
1. Waterfall model
2. Incremental model
3. Spiral model
4. Prototyping model
5. Incremental model
6. Data mining evolve as a mechanism to cater the limitations of ___ systems to deal massive data sets with high dimensionality, new data type, multiple heterogeneous data resource etc.
1. OLTP
2. OLAP
3. DSS
4. DWH
5. None of these
7. An important application of cryptography, used in computerized commercial and financial transaction
1. Data mining
2. Data warehousing
3. Digital signature
4. Media convergence
5. None of these
8. Rows of a relation are called:
1. Relation
2. Tuples
3. Data structure
4. An entity
5. None of these
9. The drawbacks of the binary tree sort are remedied by the
1. Linear sort
2. Quick Sort
3. Heap Sort
4. Insertion Sort
5. None of these
10. Which layer of OSI determines the interface of the system with the user?
1. Network
2. Application
3. Data link
4. Session
5. None of these

          11.  The tracks on a disk which can be accused without repositioning the R/W heads is

1. Surface
2. Cylinder
3. Cluster
4. All of these
5. None of these

           12.  Which of the following is true about GUIs?

1. They make computers easier to use for nonprofessionals
2. They use icons and menus that users can select with a mouse
3. Both (1) and (2)
4. All of the these
5. None of these

           13.  A computer system consisting of its processor, memory and I/O devices accepts data, processes it and produces the output results .Can you tell in which component is the raw data fed?

1. Mass Memory
2. Main Memory
3. Logic Unit
4. Arithmetic unit
5. None of these

           14.  The mechanical diskette drive in which you insert your diskette is connected to the computer’s—bus

1. Data
2. Communication
3. Address
4. Parallel
5. None of these

           15.  A set of programs that handle firm’s database responsibilities is called a

1. Data base Management System (DBMS)
2. Data Base Processing System (DBPS)
3. Data Management System (DMS)
4. All of these
5. None of these

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