Professional Knowledge for IBPS SO (IT Officer)

Professional Knowledge for IBPS SO (IT Officer)

Professional Knowledge for IBPS SO (IT Officer)

Q.1) A context free grammar is ambiguous if
(a) the grammar contains useless non-terminals
(b) it produces more than one parse tree for some sentence
(c) some production has two terminals side by side on the right-hand side
(d) all of the above
(e) None of these
Q.2) Which language are used for real time system
(a) assembly
(b) C
(c) C++
(d) Java
(e) None of these
Q.3) Which command allows viewing or editing of common configuration files?
(e) None of these
Q.4) In UNIX systems the user can change the access rights of the file to different users by using –
(a) PID
(b) Chmod
(c) Head
(d) Tail
(e) None of these
Q.5)The two wire connections between each subscriber’s telephone and the end office are known as –
(a) switches
(b) local central office
(c) local loop
(d) toll office
(e) None of these
Q.6) Which of the following statement is true regarding views in SQL?
(a) one cab represent logical subsets or combinations of data by creating views of tables
(b) view is a logical table based on a table or another view
(c) a view contains no data of its own but is like a window through which data from tables can be viewed or changed
(d) all of the above
(e) None of these
Q.7)Tracking and recording of page modifications is usually performed in hardware by adding a written-into bit to each entry of the page map table. This bit is sometimes called –
(a) buddy bits                          (b) protection bits
(c) priority bits                          (d) dirty bits
(e) None of these
Q.8) When we connect one network to different network it is provided by
(a) networking
(b) gateway
(c) bridge
(d) LAN
(e) None of these
Q.9) The _____ contains information on the data stored in the database on the data stored in the database and is consulted by the DBMS before any data manipulation operation.
(a) data dictionary
(b) data table
(c) view
(d) network catalog
(e) None of these
Q.10)Which of the following Unix command is used to create empty files?
(a) Cat
(b) Vi
(c) Pico
(d) Touch
(e) None of these
Q.11) According to ANSI specifications which is the correct way of declaring main () when it receives command line arguments?
(a) mains (int argc, char * argv [ ])
(b) main (argc, arg V) int argc; char * argv [ ];
(c) main ( )
Int argc; char * arg V [ ];
(d) all of the above
(e) None of these
Q.12) One entity may be:
(a) related to only one other entity
(b) related to only two other entities
(c) related to many other entities
(d) unrelated
(e) None of these
Q.13) Which of the following comparisons between static and dynamic type checking is incorrect?
(a) Dynamic type – checking slows down execution
(b) dynamic type-checking offers more flexibility to the programmers
(c) dynamic type-checking is more reliable
(d) both (a) and (b)
(e) None of these
Q.14) Which one is true for B’ tree
(a) In B+ tree data pointers are stored only at the leaf nodes of the tree
(b) leaf nodes of the B+ tree are usually linked together to provide ordered access on the search field to the record
(c) each internal nodes has at most p tree pointers
(d) all of the above
(e) None of these
Q.15) To construct a parse tree from the leaves to the root, rather than the other way around and so this class of methods is called –
(a) leaf-root parser
(b) top-down parser
(c) bottom-up parser
(d) all of the above
(e) None of these
Q.16) What is the output of the following ‘C’ program?
Main ( )
Float a = 0.7,
If (a < 0.7)
Printf (“C”);
Printf (“C++”)
(a) C
(b) C++
(c) Error
(d) All of the above
(e) None of these
Q.17) Machines within or outside bank premises which enables cash withdrawal and other transactions without help of bank staff is:
(a) ATM
(b) PC
(c) internet
(d) Intranet
(e) None of these
Q.18) In an 8085-microprocessor system the RST instruction will cause an interrupt
(a) only if an interrupt service routine is not being executed
(b) only if a bit in the interrupt mask is made 0
(c) only if interrupts have been enabled by an EI instruction
(d) all of the above
(e) None of these
Q.19) In a vector interrupt
(a) the branch address is assigned to a fixed location in memory
(b) the interrupting source supplies the branch information to the processor through an interrupt vector
(c)The branch address is obtained from a register in the processor
(d) all of the above
(e) None of these
Q.20) The domain D of the relation R is defined as the –
(a) set of all elements of ordered pair which belongs to R
(b) set of all last elements of ordered pair which belongs to R
(c) Set of all first elements of ordered pair which belongs to R
(d) all of the above
(e) None of these

Answer Key
Q.1) b
Q.2) c
Q.3) a
Q.4) b
Q.5) c
Q.6) d
Q.7) d
Q.8) b
Q.9) a
Q.10) d
Q.11) a
Q.12) c
Q.13) d
Q.14) d
Q.15) c
Q.16) a
Q.17) a
Q.18) c
Q.19) b
Q.20) c
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