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Professional Knowledge Quiz for SBI, IBPS IT Officer - Set 1

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In SBI and IBPS IT Officer exam, Professional Knowledge section alone contains 75 marks. It means, this section is most important for cracking IBPS/SBI IT Officer Exam. This is the first set on Professional Knowledge from us. In this post, we are providing you some really important questions of this section along with explanation.

Computer Quiz for IT Officer

  • 1. What is the task of the UNIX kernel?

    1. Provides a link between the user and the system
    2. Provides a link between user and application
    3. Provides a link between the kernel and application
    4. Provides a link between system components and application
    5. None of the above
    Answer And Explanation
    Answer: Option B
    Explanation:
    Note :The kernel is the part of operating system that interacts directly with the hardware of computer, through device drivers that are built into the kernel. Kernel performs I/O service( which allows computers to interact with terminals, storage devices and printers).

Computer Quiz for IT Officer

  • 2.Only the process executing the critical section is allowed access to the shared variable, all other processes should be prevented from doing so until the completion of the critical section. This is often referred to as

    1. Mutual exclusion
    2. Semaphores
    3. Deadlock
    4. Interprocess communication
    5. None of the above
    Answer And Explanation
    Answer: Option A
    Explanation:
    Note:Mutual exclusion refers to the problem of ensuring that no two processes or threads are in their critical section at the same time. Only a single thread should be able to access the shared resource at any given point of time. This can be achieved with the help of monitors and locks.

Computer Quiz for IT Officer 

  • 3.The network administrator of the XYZ bank, chennai branch, wants to enable connection between the marketing and the business development. Which device, would you recommend so that the packets are routed using the best path?

    1. Switches
    2. Routers
    3. Bridges
    4. Repeaters
    5. None of the above
    Answer And Explanation
    Answer: Option B
    Explanation:
    Note:Routing is the process of selecting paths in a network along which to send network traffic. Routing is performed for many kinds of networks, including the telephone network, electronic data networks and transportation network.

Computer Quiz for IT Officer

  • 4.A context free grammar is ambiguous if

    1. The grammar contains useless non terminals
    2. It produces more than one parse tree for some sentence
    3. Some production has two terminals side by side on the right hand side
    4. All of the above
    5. None of the above
    Answer And Explanation
    Answer: Option B
    Explanation:
    Note:A grammar is ambiguous if there is word which has 2 different derivation/ parse trees.

Computer Quiz for IT Officer  

  • 5.Which command allows viewing or editing of common configuration files?

    1. SYSEDIT
    2. REGEDIT
    3. CFGEDIT
    4. AUTOEDIT
    5. None of the above
    Answer And Explanation
    Ans-A( The SYSEDIT utility is a program that allow you to modify the 4 windows configuration files- Auto exec.bat, config.sys, win.ini and System.ini.)

Computer Quiz for IT Officer

  • 6.Which language are used for real time system?

    1. Assembly
    2. C
    3. C++
    4. Java
    5. None of the above
    Answer And Explanation
    Answer: Option C
    Explanation:
    Note:C++  is used in real time applications because in C++, life time of all objects are exactly known and C++ program guarantee that resources are acquired and released in fully deterministic manner. One of important feature of C++ is scope bound resource management.

    C was explicitly not designed for concurrent real time systems. However, for C, POSIX real-time profit is used (Extension of C).

    Java is not used in real time systems because of the non deterministic performance effects inherent in the JAVA language design, such as dynamic class loading and in JRE itself such as garbage collector and native code compilation.

    Assembly is a low level language not meant for real time systems.

Computer Quiz for IT Officer

  • 7. Which of the following statement is true regarding views in SQL?

    1. One can represent logical subsets or combinations of data by creating views of tables.
    2. View is a logical table based on a table or another view.
    3. A View contains no data of its own but is like a window through which data from tables can be viewed or changed.
    4. All of the above
    5. None of the above
    Answer And Explanation
    Answer: Option D
    Explanation:
    Note:Views are the virtual tables. They are called virtual table because the result set of a view is not usually saved in the database. The result set for a view is dynamically incorporated into the logic of the statement and the result set is built dynamically at run time. What is stored in the database is a SELECT statement. The result set of the SELECT command forms the virtual table returned by the view. A user can use this virtual table by referencing the view name in Transact-SQL statements. So, all statements given are true.

Computer Quiz for IT Officer  

  • 8.To overcome the difficulty of race around condition which of the following flip-flop is used?

    1. JK flip-flop
    2. SR flip-flop
    3. D flip-flop
    4. Master-slave flip-flop
    5. None of these
    Answer And Explanation
    Answer: Option D
    Explanation:
    Note: Master slave flip flop is a cascade into two flip flops in which the first one responds to the data input when block is high whereas the second one responds to the output of the first one when the clock is low. Thus the final output change only when the clock is low when the data inputs are not effective. Thus the race around conditions gets eliminated in this.

Computer Quiz for IT Officer

  • 9. In a vector interrupt

    1. The branch address is assigned to a fixed location in memory.
    2. The interrupting source supplies the branch information to the processor through an interrupt vector.
    3. The branch address is obtained from a register in the processor
    4. All of the above
    5. None of these
    Answer And Explanation
    Answer: Option B
    Explanation:
    Note: In vectored interrupt, the interruption source supplies the braven address to information to the processor. The set of address supplied by different interrupting sources is known as interrupt vector. Vector interrupt is faster in response than the non  vectored interrupt in which the branch address is fixed.

Computer Quiz for IT Officer 

  • 10.The__________ contains information on the data stored in the database and is consulted by the DBMS before any data manipulation operation.

    1. Data Dictionary
    2. Data Table
    3. View
    4. Network catalog
    5. None of these
    Answer And Explanation
    Answer: Option A
    Explanation:
    Note:A Data dictionary is a centralized repository of information about data.(eg: meaning, relationship to other data, origin, format, etc) when developing programs that use the data model, a data dictionary can be consulted to understand where a data item fits in the structure,what values it may contain, and basically what the data item means in real world terms.

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