- Machine language is the only language that the computer can directly execute and is different for each type of
A. hardware computer only
B. supercomputer only
C. computer
D. none of the above
- The three categories of programming languages are : machine language, assembly language and
A. structured programming language
B. high-level languages
C. subprograms
D. none of the above
- A job is a unit of work to be processed by the………..
- A computer can only execute instructions that are in
A. assembly language
B. machine language
C. job control program
D. none of the above
- The job control program translates the job control commands written by a programmer into
A. high-level language
B. assembly language
C. machine language
D. none of the above
- Application programs are the programs that meet
A. machine language needs
B. job control program needs
C. user's needs
D. none of the above
- When computers were first developed, machine language was the only way they could
A. be programmed B. not be programmed C. both (A) and (B) D. none of the above
- Often assembly language instructions will execute faster than those written in
A. machine language B. high-level language
C. Pascal D. none of the above
C. Pascal D. none of the above
- Pascal can be used to write a wide variety of programs, from those that are highly scientific to those that are strongly
A. business oriented B. general oriented C. source oriented D. none of the above
- In Pascal, there is no limit to the length of an identifier, but some compilers only recognize the ,
A. four characters in the identifier
B. three characters in the identifier
C. eight characters in the identifier
D. none of the above
- The formulation of user-defined identifiers should allow the rules for
A. identifiers B. operations
C. computer D. none of the above
- A storage location whose value can change during program execution is referred to as
A. integer B. variable
C zero integer D. none of the above
- An integer is a signed or. unsigned
A. a few numbers B. only one number C. whole number D. : none of the above
- Variable of data type Boolean can represent only one of the two values
A. zero and one B. true or false
C. three or four D. none of the above
- The data type char contains all of the characters that can be represented by a given
A. identifier B. program
C. computer system. D. none of the above
- The variable of type char can contain only a single character
A. of all time B. at a time
C. at the beginning D. none of the above
- A vertical arrangement of information on worksheet is termed as
A. row B. vertical row
C. column D. none of the above
- The information stored in a cell is termed as
A. COMMAND
B. CONTENTSC. BOOT
D. none of the above
A collection of on-line reference information used to perform program operations, this is termed
- as
A. FORMULA
B. FIELD
C. Help
D. none of the above
- Macro substitution is a powerful programming technique used in
A. files
B. command files
C. data bases
D. none of the above
- A command file is a disk file that has a series of
A. command in it
B. databases
C. computer programs
D. none of the above
- A command file is actually a
A. data base
B. computer memory
C. computer program
D. micro substitution
- To print formatted reports with dBASE n, we use its built-in
A. any particular format
B. report generator
C. computer memory
D. none of the above
- A computer's main memory is called
A. database
B. computer memory
C. random access memory or RAM
D. none of the above
- Data in RAM also have names which are stored in memory variables instead of
A. memory
B. databases
C. computer memory
D. none of the above
- Memory variables are temporary storage places for pieces of
A. information
B. databases
C. RAM
D. none of the above
- The command is Append. Which is the correct definition in the following?
A. Formats screen and printer displays
B. Allows us to add new data to our data base
C. A condition is not true
D. none of the above
- The command name is B. Which is the correct definition in the following? '
A. Refers to all records in the database
B. Creates or edits a command file
C. signals drive B for storing data files
D. none of the above
- The CHR function tells us the character that goes along
A. with computer memory B with a number
C. with a data base
D. none of the above
- When we set alternate to TRANSFER, dBASE created a disk file called:
A. ALTERNATE ON
B. TRANSFER.TXT
C. QUIT dBASE
D. none of the above
- Computer can only perform
A. several basic operations
B. two basic operations
C. three basic operations
D. none of the above
- Assembly languages also referred to as low level languages
B. machine language
C. high language program
D. none of the above
- Lotus is an exciting and impressive piece of
A. data base
B. hardware computer system
C. software computer system
D. none of the above
- In supercomputer, a machine must be capable of performing at least
A. 10 million arithmetic operations per second
B. 20 million arithmetic operations per second
C. 40 million arithmetic operations per second
D. 80 million arithmetic operations per second
- Before you can start WordStar, you need to be n the directory that contains all of the WordStar programs. The name of this directory is:
- If the directory docs not list the drive letter where you need to keep the data disk blank, you must change it with the
A. M option
B.N option
C. L option
D. none of the above
- LOTUS is an exciting and impressive piece-of
A. computer hardware
B. computer software
C. computer
D. none of the above
- An address that does not change if you copy the formula from one cell to another. The term of this definition is
A. ASCII
B. ADDRESSS
C. ABSOLUTE ADDRESS
D. none of the above
- A particular type of data locate in a column is termed as
A. ATTRIBUTE
B. BYTE
C. BOOT
D. none of the above
- Unique location on a spread sheet identified by the intersection" between one row and one column. The term of this definition is
A. CELL POINTER
B. CELL
C. BYTE
D. none of the above
- Listing of files on a particular disk is termed as
A. DISK PREFIX
B. CELL
C. DIRECTORY
D. none of the above
1. The model which provides a concrete expression of these concepts by means of two fundamental ideas — logical records and links, is called a
A. relationship model
B. network model
C. hicrachical modelD. none of the above
2. The network model has been established by
A. CODASYL committee
B. IBM
C. ECA
D. none of the above
3. A link may be defined as the representation of an
A. objects B, programs
A. objects B, programs
C. association D. none of the above
4. DML is intended provide operations which ope- rate upon data stored in the
A, file B. record
C. database D. none of the above
5. In the hierarchical model a hierarchical schema is defined by a tree whose nodes are
A. database B. logical record types
C. links D. none of the above
6. The set of all values in the relations represents the contents of the
A. database B. record file
C. table D. none of the above
7. In hierarchical data model, the database is represented by
A. a directed graph B. tree structures
C. relation D, none of the above
C. relation D, none of the above
8. A Database Management System (DBMS) is a software system capable of supporting and managing any number of independent
A. results B. relations
D none of the above
9. Support for data independence is arguably the most important feature of a
A system B, database system
C. relation D. none of the above
10. Distinct levels of data independence arc
A. two B. three
A. two B. three
C. four D, none of the above
11. Database software may be divided into
A. four distinct categories
B. three distinct categories
C. two distinct categories
D. none of the above
12. Any large software project may be divided into several
A. project phases B. sub projects
C hardware D. none of the above
13. Data modeling occupies an important position in the
A. database file B. database life cycle
C. relation D. none of the above
14. The term "software engineering" implies the application of scientific knowledge and discipline to the construction of
A. database record
B. computer hardware system
C. computer software system
D. none of the above
15. Program correctness has been a strong motivation for much of the work in software engineering and
A. high-level language programming
B. programming language design
C. Pascal
D. none of the above
Answers:
1
|
2
|
3
|
4
|
5
|
B
|
A
|
B
|
B
|
B
|
11
B
|
12
A
|
13
B
|
14
C
|
15
B
|
6
|
7
|
9
|
10
| |
A
|
B
|
C
| s |
- For the novice, there is a recommended
A. learning sequence
B. sub-sequence
C. interesting way
D. none of the above
- In fact, the more you use LOTUS 1-2-3, the more you think of new and
A. interesting ways to use it
B. different ways to use it
C. more complicated ways to use it
D. none of the above
- LOTUS 1-2-3 operates with IBM and compatible
A. hardware requirements only
B. software requirements only
C. both A and B or personal computers
D. none of the above
- Work sheets have been used to organize
A. financial information only
B. business information only
C. financial and business information for years
D. none of the above
- With the advent of the microcomputer, worksheets became
A. electronic
B. more complex
C. easy
D. none of the above
- Before you ran the installation program, you created a directory for the
A. WordStar files B. programs
C. hard disk D. none of the above
- In earlier versions of WordStar, the Edit Menu was referred to as the
A, Old Menu B. Main Menu
C Menu D. none of the above
- WordStar also allows us to save a marked block of text in
A. a new file B. an old file
C. a program D. none of the above
- WordStar provides us reading a block of text into
A. a document B. a program
C. a new file D. none of the above
- To perform any WordStar block operations, you must first mark the block of text
A. not to be used
B. to be used
C. of program to be used
D. none of the above
- WordStar supports
A. documents
B. background printing
C. without printing
D. none of the above
- All the file names that you give any WordStar document must confirm to the DOS
A. file naming conventions
B. and programs
C. and document
D. none of the above
- We can send dBASE reports to word processing system for editing or
A. inclusion in other documents
B. printing
C. programming
D. none of the above
- dBASE is a data base management systemfor
A. supercomputer
B. microcomputer
C. minicomputer
D none of the above
- In computer world, a database is like our shoebox file, with a
A. very rigid structure
B. simple structure
C. program
D. none of the above
- There is a very important difference between human database managers and
A. computer database management systems B any management system
C. structure database systems
D. none of the above
- The computer does not understand anything
about
A. any information
B. programming languages
C. information base on its context
D. none of die above
- We structure our database rigidly so the
A. computer does not mistake
B. program can be formed
C. database is properly occurred
D. none of the above
- We can send dBASE reports to word processing systems for further editing or inclusion
A. in other documents
B. of programming
C. any other information
D. none of the above
- Lotus is an exciting and impressive piece of
A. hardware computer system
B. software computer system
C. database
D. none of the above
- Beginning in Module-2, you encounter many LOTUS
A. commands
B. piece of computer software
C. 1-2-3 commands
D. none of the above
- The current worksheet is entirely in the
A. computer
B. main memory of the computer
C. programming
D none of the above
- The name of WordStar's directory is
A. WS5 B. WS7
C. WS4 D. none of the above
- If you use WordStar on a dual-floppy system and start WordStar with drive A as the default you will need to change the logged drive to Bwhen
A. you put the computer on
B. you start the program
C. you change the drive
D. none of the above
- WordStar displays an alphabetical listing of as many files on the logged disk or
A. it has room for
B. it has directory specification
C. it has Opening Menu
D. none of the above
- An entity type may contain the declaration of another entity type, and so on, in order to define
A. Pascal's record file
B. hierarchical structure
C. database
D. none of the above
- Important point concerning the hierarchical model is the physical implementation of the
A. system B. software system
C. evaluated trees D. none of the above
- The data model proposed by E.F. Codd in 1970 is called the
A. Codd Model
B. relational data model
C. network model
D. none of the above
- The basic idea is to consider a database as a collection of time varying tables called
A. relations B. network model
C. Pascal's structure D. none of the above
- The relational algebra is a set of operators which can be used to define new relations from
A. the old ones B. existing ones
C. system D. none of the above
- Relational algebra can be used to express
A. relations
B. system
C. queries and updates
D. none of the above
- SQL is a relational language which has also been implemented in several
A. DBMSs B. ECA
C. QUEL D. none of the above
- Relational algebra is one of the basic concepts for defining
A. high-level language
B. relational language
C. machine language
D. none of the above
- SQL is neither a pure algebraic language nor a
A. machine language
B. assembly language
C. predicative language
D. none of the above
- Codd shows that relational algebra is equivalent to first order
A. differential equation
B. predicate calculus
C. differential calculus
D. none of the above
- In SQL the statement Expand Table can be used at any time
A. old relation B. given relation
C. combination D. none of the above
- The tutorial is designed to quickly acquaint you with the basic knowledge of
A. Computer
B. WordStar
C. Software programming
D. none of the above
- To start WordStar on a computer with two floppy disk drives, you need to place a copy of your DOS disk in drive A before
A. you start programming
B. you format the disk
C. you turn the computer on
D. none of the above
- Before you can start WordStar, you need to be in the directory that contains all of the
A. WordStar programs
B. computer technology
C. basic working of WordStar
D. none of the above
- The original WordStar was the very first software program,
A. mention program
B. mention word processor
C. mention computing
D. none of the above
- Before a program written in high language can be executed, it must be translated into
A. block structural language
B. machine language
C. structural programming language
D. none of the above
- A loop is usually the easiest way to perform a repetition task such as printing a list of
A. a few names
B. several hundred names
C. One name only
D. none of the above
- The syntax of a language can be described using syntax diagrams, such as those for
A. Pascal
B. loop
C. sequence
D. none of the above
- A program that adds three numbers together and determines the average is a
A. loop B. term
C. sequence D. none of the above
- Those languages which are strongly oriented toward the programmer rather than toward the computer, they are termed as
A. machine language
B. high-level language
C. assembly language
D. none of the above
- Pascal contains statements that allow the programmer to efficiently alter the flow of program
execution by using decision
A. structure only
B. loops only
C. structures and loops
D. none of the above
- In block-structured language, programs are com- posed of subprograms or blocks, each designed to perform a
A. decision structures
B. loop
C. specific task
D. none of the above
- The important feature of Pascal is that it is a general-purpose
A. programming language
B. high level language
C. source program
D none of the above
- Pascal programs are usually translated into machine language by a
A. batch processing
B. computer
C. block
D. none of the above
- There is no limit to the length of
A. Pascal program
B. structured programming language
C. an identifier
D. none of the above
- Assembly languages also referred to as
A. high language program
B. low-level languages
C. machine language
- Peripheral devices consist of input devices, out- put devices and
A. logical operation
B. secondary storage device
C. arithmetic operation
D. none of the above
- The primary storage unit temporarily stores data, programs, and
A. physical components
B. peripheral devices
C. processing results
D. none of the above
- The central processing unit consists of the arithmetic/logic unit, which performs arithmetic and logical operations, and the control unit, which controls the operations of,
A. CPU
B. ALU
C. peripheral devices
D. none of the above
- The relational model whose guiding ideas were published in 1970 has dominated the area of
A. software system
B. hardware system
C. database research and development
D. none of the above
- A link is represented by a diagram, called a A. Bachman diagram B. Pascal diagram C. Theory diagram D. none of die above
- A great advantage of Modula-2 over Ada is that it is a
A. greater language B. small language C. Pascal language D. none of die above
- Integrity constraints are predicates which must be true for data stored in the
A. system B. hardware system
C. database D. none of the above
- In a distributed DBMS one may add a third factor which is the transmission time in the
A. relation B. system
C. network D. none of die above
- A transaction is the unit of concurrency and A. system B. recovery control C. software system D. none of the above
- A DBMS allows data manipulation through primitive operations which can be grouped to form A. data transactions B. software system
C. hardware system D. none of the above
- The INSERTION clause specifies the storage method as either AUTOMATIC or
A. DBMS B. MANUAL
C. CODASYL D. None of the above
- The RETENTION clause specifies the degree of freedom available to the members of a
A. database B. system
C. link D. none of the above
- When items stored in primary storage need to be kept permanently, they can be transferred to secondary storage. Example of secondary storage media are
A. magnetic disks and tape
B. air
C. water
D. none of the above
- Programs are list of instructions that a computer can use to solve a problem. A program or series of programs is called
A. hardware
B. software
C. language program
D. none of the above
- Pascal provides standard fifes, named
A. input and output B. input only
C. output only D. none of the above
- An operating system contains A. one type of .program
B. several types of programs
C. only two types of programs
D. none of the above
- Computers can only perform
A. two basic operations
B. three basic operations
C. several basic operations
D. none of the above
- A data model may be defined as a pattern according to which data are
A. organized B. weaklyorganized
- The term 'software engineering' implies the application of scientific knowledge and discipline to the construction of
A; systems B. hardware systems
C. software systems D. none of the above
- In software system, the data must be shared among
A. a very few users B. many different usersC.two users D. none of the above
- One of the most important techniques for dealing with complexity in software systems is the
A. principle of abstraction
B. principle of stepwise refinement
C. maintainability of the system
D none of the above
D none of the above
- Concurrency control in database management systems, including
A. database procedure
B. transaction
C. alternatives to locking
D. none of the above
- The developments in software engineering have led to the emergence of a
A. programming language
B. new class of programming language
C. new class of system
D. none of the above
- Program correctness has been a strong motivation for much of the work in software engineering and
A. hardware system
B. assembly language
C. programming language design
D. none of the above
- Modula-2 is a language which is suitable both for the implementation of
A. database system only
B. application programs
C. database management systems and application
programs
programs
D. none of the above
- The logical database design is a
A. three stage process B. two-stage process . C. four stage process D. none of the above
- Arithmetic and logic operations are the only types of instructions that the
(A) CPU is able to execute
(B) ALU is able to execute
(C) Hardware is able to execute
(D) none of the above
- The primary storage unit also referred to as
(A) main memory, primary memory
(B) internal storage
(C) both (A) and (B) ,(D) none of the above
- In a national election, the records of all the votes cast for the office of President are data when these votes are tabulated and the final total is determined, the result is called
(A) Input (B) information
(C) ALU (D) none of the above
- A given computer system can have
(A) only one input devices
(B) not more than two input devices
(C) many different input devices
(D) none of the above
- Output devices; allow the user to examine the computer's output. Displaying output on the screen gives the user the results in a convenient, readable form; this output is referred to as
(A) hard copy (B) soft copy
(C) input devices (D) none of the above
- As with input devices, a particular computer system can have
(A) only one output device
(B) only two output devices
(C) many different output devices
(D) none of the above
- Disk and tape drives are commonly used
(A) hard copy
(B) soft copy
(C) secondary storage devices
(D) none of the above
- A computer is a device for automatically carrying out a/an :
(A) information
(B) instructions
(C) program of instructions
(D) none of the above
- One of the more modern programming languages is called:
(A) higher language
(B) Pascal
(C) Assembly language
(D) None of the above
- Hardware consists of the actual
(A) components of the computer
(B) components of the computer system
(C) components of the software
(D) none of the above
- The component of the computer system which perform processing functions is called the
(A) control unit
(B) main memory
(C) central processing unit (CPU)
(D) none of the above
- The arithmetic unit (ALU) performs
(A) mathematics computations
(B) primary memory
(C) CPU
(D) none of the above
- Peripheral devices can be divided into
(A) four general categories
(B) three general categories
(C) two general categories
(D) none of the above
- Programs and data that are entered into a computer to be processed are called
(A) output
(B) input
(C) both (A) and (B)
(D) none of the above
- When data is processed, or converted to some meaningful form, this is called
(A) ALU (B) CPU
(C) information (D) none of the above
- In supercomputer, a machine must be capable of performing atleast
(A) 5 million arithmetic operations per second
(B) 10 million arithmetic operations per second
(C) 20 million arithmetic operations per second
(C) 20 million arithmetic operations per second
(D) none of the above
- For most business applications, the extremely high-speed processing capabilities of a super-computer
(A) are. necessary (B) are not necessary
(C) both (A) and (B) (D) none of the above
- Minicomputers manufactured today are more powerful than
(A) supercomputer (B) mainframes
(C) microcomputer (D) none of the above
- Which of the following computer is currently the smallest and least costly computer
(A) microcomputer (B) supercomputer
(C) mainframes (D) none of the above
(C) mainframes (D) none of the above
- Some programs direct the computer in its own internal operations. These are called
(A) software
(B) system programs
(C) application programs
(D) none of the above
- The communication between the CPU and external modules takes place via the
(A) address only
(B) data buses only
(C) address and data buses
(D) none of the above
- The SET SELECTION clause indicates how to access to set
A. occurrence B. a system
C, a software D. none of the above
- Once complied by the DBMS, the database scheme will be used to create and to control
A. system B. data storage
C. a link D. none of the above
- The way, the occurrence of an owner is linked to the occurrence of its
A. relation B. system
C. members D. none of the above
- The SOCRATE/CLIODDL can be used to define
A. records and file B. relation
C. schemes D. none of the above
- In SOCRATE/CLIODDL one must specify the maximum numbers of occurrences for each
A. link B. entity type
C. scheme D. none of the above
- An entity defines a block structure similar to
A. hierarchical structure
B. Pascal's record constructor
C. scheme
D. none of the above
- If the value of maxim for the computer system used is 2147403647. Then the range of allowable integers for this particular system is
A. 2147483647 through - 2147483647
B. - 2147483647 through 2147483647
C. 2147483647 through zero
D none of the above
- The Computer can access data stored on a hard disk more quickly than that stored
A. on a floppy disk
B. program
C. memory
D. rtbne of the above
- The arithmetic logic shift unit (ALSU) is a combination circuit that performs a number of arithmetic and logic arid
A. memory unit
B. shift micro operations
C. control memory
D. none of the above
D. none of the above
- The block diagram of the processor unit consists Of a file of 14 registers, on ALSU, and three buses that provide the data path
A. within the system
B. within the unit
C. within the tile
D. none of the above
- The 14 registers in the processor .unit are assigned special (asks by the
A. ALSU
B. CPU
C DOR
D none of the above
- A computer usually have .several input, and output (I/O) devices, these collectively known as
A. function unit
B. bit-pattern
C. peripherals
D. none of the above
- In Pascal, it is impossible-for variable values oV. Constants to be used as
A instructions
B. bit pattern
C. peripherals
D. none of the above
- Irv-Pascal, in exponential notation, the number is
written as a value which is multiplied by _10 to
A. any power
B. the appropriate power
C. 10th power
D. none of the above
- In characteristic, a plus sign (+) is to be shifted
A. to the left a certain number of places
B. to the zero a certain numbers of places
C. to the right a certain number of places
D. none of the above
- In characteristic, a negative sign (-) indicates that the decimal point should be shifted a certain number of places
A. to the right
B. to the zero
C. to the left
D. none of the above
- The standard identifiers are the words
A. real only
B. real, integer only
C. real, integer, Boolean, and char
D. none of the above
- User-defined identifiers are those identifiers that are supplied by the programmer to name objects or processes that are used
A. within the database
B. within the program
C. within (lie Pascal compiler
D. none of the above
- The primary storage unit in a Computer is divided into
A. two separate storage locations only
B. three separate storage locations only
C. many separate storage locations only
D. none of the above
- A variable has distinct characteristic
A. a name, a type only
B. a value,-a name only
C. a name, a value, a type
D. none of the .above
- A variable name may be any valid user-defined identifier and serve as a symbolic name for a
A. database only
B. language program
C. specific location in memory
D. none of the above
- In Pascal, a data type determines both the group of possible values of the variables and the allowable
A. identifiers
B. operations for the variable
C. storage location
D. none of the above
- DIR is used only after a read operation, to receive the data from
A- database
B. data bus
C. data-bus buffers
D. none of the above
- Eight processor Registers are used as for manipulating data through
A. data bus ,
B. database
C. program instructor
D. none of the above
- The program counter, can be changed by the programmer by means of
A. branch type instructions
B. ordinary instructions
C: programming language
D. none of the above
- The basic model -for a digital computer is still
known as the
A. Pascal machine
B. Neumann machine
C. Charles Babbage machine
D. none of the above
- The structure, for A sample Digital Computer
referred to
A. SDC
B. SDCc .
C. SDQcc
D. none Of trie above
- The two main categories of software are application software and
A. machine language
B. system software
C. high-level languages
D. none of the above
- Some digital computers are called decimal/ computers because
A. decimal number can not be read in such computer
B. decimal number can be read in such computer
C. it does not contain decimal number
D. none of the above
- Which computer is often found In small businesses and in homes and classrooms?
A. mainframe
B. supercomputer
C. microcomputer
D. none of the above
D. none of the above
- Which computer's primary storage unit is usually smaller than that of the other types of computer?
A. minicomputer
B. microcomputer
C. supercomputer
D. none of the above
- A computer which uses a series of digits to represent all types of information is called
A. a digital computer
B. an analogue computer
C. super computer
D. none of the above
- We can combine dBASE power with other software systems by transferring
A. files to an fro dBASE
B. program to another program
C. files to an fro Database
D. none of the above
- It is not possible to declare all the functions on an entity, or all of the subtypes, at the
A. existing data
B. entire database
C. module creation
C. module creation
D. none of the above
- Integrity constraints are predicates which must be free for data stored in
A. an entity
B. the database
C. the system
D. none of the above
- One of the aspects of data integrity is related to data access and
A. on the database
B. the language programming
C. privacy problems
D. none of the above
- A DBMS allows data manipulation through primitive operations which can be grouped to form
A. database transactions
B. database modification
C. software modules
D. none of the above
- The INGRES system is composed with
A. one module
B. two modules
C. four modules
D. none of the above
- QUEL is interpreted by the
A. DBMS system
B. INGRES system
C. SQL system
D. none of the above
- It is also possible to access the relational DBMS through application program written in
A. high-level programming language
B. Pascal language programming
C. procedural language
D. none of the above
- We can send dBASE reports to word processing systems for further editing or inclusion
A. in other programs
B. in other documents
C. in other systems
D. none of the above
- The top three lines in a LOTUS 1-2-3 is termed as
A. PANEL
B. CONTROL PANEL
C. EXTENSION
D. none of the above
- The module scheme does not provide one of the common features of modules in programming, namely
A. the accessing a number of shared modules
B. the hiding of names
C. and the partitioning of the same space
D. both B and C
- Modules of the kind used in ADA and Module-2 allow one to declare a collection of procedures and functions that
A. hiding the names
B. reference each other
C. partitioning of the same space
D. none of the above
- The advantage of using storage system like binary relations or triples which does not keep all the function values on
A. an entity together
B. entire database
C existing data
C existing data
D. none of the above
- SQL is a relational language which has also been implemented in several
A. DBMSs B. QUEL
C. INGRES D. none of the above
- Several relational languages have been defined for different
A. relational DBMS ,
B. relational DBMSs
C. QUEL languages
D. none of the above
- Relational algebra is one of the basic concepts for defining
A. programming languages
B. relational languages
C. high-level programming language D. none of the above
- Using the operators of relational algebra one may manipulate and query the database in a
A. non-homogeneous manner
B. homogeneous manner
C. both A and B
D. none of the above
- Modula-2 is an ideal language for interacting with an existing DBMS, where a suitable module
A. has not been provided
B. has been provided
C. both A and B
D. none of the above
- Locking mechanism guarantees exclusive access to an item of data while a lock
A. has not been used
B. is in force ,
C. both A and B
D. none of the above
- The ability to define such abstract objects, together with appropriate operations, is invaluable for
A. programming language
B. high-level programming language
C. database applications
D. none of the above
- One of the most important technique for dealing with complexity in software system is the principle of
A. programming language
B. abstraction
C. database technology
D. hone of the above
- The term 'software engineering' implies the application of scientific knowledge to the construction of
A. computer software systems
B. computer hardware systems
C. high-level programming language
D. none of the above
- By error we mean any deviation from the behavior stipulated by the
A. database system
B. requirements analysis
C. incorrect data modeling
D. none of the above
- By implementation we mean the transformation of our design into a database system which operates on a particular machine, usually under the control of
A. software system
B. hardware system
D. none of the above
- Boolean variables are sometimes referred to as
A. variables
B. real variables
C. logical variables
D. none of the above
- In Pascal, decimal notation, requires that a real number contains at least one digit before and after the
A. exponential notation
B. decimal point
C. zero
D. none of the above
No comments:
Post a Comment