GK Study

Breaking

Computer Database Reletive Question & Answer-2
सितंबर 19, 2018

Computer Database Reletive Question & Answer-2

Computer General knowledge for all competitive exam like ibps,ssc,mppsc,vyapam,RRB. Don't forget to follow our website to get notifications on your email


Q.1 It is better to use files than a DBMS when there are
(A) Stringent real-time requirements.
(B) Multiple users wish to access the data.
(C) Complex relationships among data.
(D) All of the above.
Ans: B
Q.2 The conceptual model is
(A) dependent on hardware.
(B) dependent on software.
(C) dependent on both hardware and software .
(D) independent of both hardware and software.
Ans: D
Q.3 What is a relationship called when it is maintained between two entities?
(A) Unary (B) Binary
(C) Ternary (D) Quaternary
Ans: B
Q.4 Which of the following operation is used if we are interested in only certain columns of a
table?
(A) PROJECTION (B) SELECTION
(C) UNION (D) JOIN
Ans: A
Q.5 Which of the following is a valid SQL type?
(A) CHARACTER (B) NUMERIC
(C) FLOAT (D) All of the above
Ans: D
Q.6 The RDBMS terminology for a row is
(A) tuple. (B) relation.
(C) attribute. D) degree.
Ans: A
Q.7 Which of the following operations need the participating relations to be union compatible?
(A) UNION (B) INTERSECTION
(C) DIFFERENCEqq (D) All of the above
Ans: D
Q.8 The full form of DDL is
(A Dynamic Data Language (B) Detailed Data Language
(C) Data Definition Language (D) Data Derivation Language
Ans: C
Q.9 Which of the following is an advantage of view?
(A) Data security (B) Derived columns
(C) Hiding of complex queries (D) All of the above
Ans: D
Q.10 Which of the following is a legal expression in SQL?
(A) SELECT NULL FROM EMPLOYEE;
(B) SELECT NAME FROM EMPLOYEE;
(C) SELECT NAME FROM EMPLOYEE WHERE SALARY = NULL;
(D) None of the above
Ans: B
Q.11 The users who use easy-to-use menu are called
(A) Sophisticated end users. (B) Naïve users.
(C) Stand-alone users. (D) Casual end users.
Ans: B
Q.12 Which database level is closest to the users?
(A) External (B) Internal
(C) Physical (D) Conceptual
Ans: A
Q.13 Which are the two ways in which entities can participate in a relationship?
(A) Passive and active (B) Total and partial
(C) Simple and Complex (D) All of the above
Ans: B
Q.14 The result of the UNION operation between R1 and R2 is a relation that includes
(A) all the tuples of R1
(B) all the tuples of R2
(C) all the tuples of R1 and R2
(D) all the tuples of R1 and R2 which have common columns
Ans: D
Q.15 Which of the following is a comparison operator in SQL?
(A) = (B) LIKE
(C) BETWEEN (D) All of the above
Ans: D
Q.16 A set of possible data values is called
(A) attribute. (B) degree.
(C) tuple. (D) domain.
Ans: D
Q.17 Which of the operations constitute a basic set of operations for manipulating relational
data?
(A) Predicate calculus (B) Relational calculus
(C) Relational algebra (D) None of the above
Ans:C
Q.18 Which of the following is another name for weak entity?
(A) Child (B) Owner
(C) Dominant (D) All of the above
Ans: A
Q.19 Which of the following database object does not physically exist?
(A) base table (B) index
(C) view
(D) none of the above
Ans: C
Q.20 NULL is
(A) the same as 0 for integer
(B) the same as blank for character
(C) the same as 0 for integer and blank for character
(D) not a value
Ans: D
Q.21 Which of the following is record based logical model?
(A) Network Model (B) Object oriented model
(C) E-R Model (D) None of these
Ans: A
Q.22 A data dictionary is a special file that contains:
(A) The name of all fields in all files.
(B) The width of all fields in all files.
(C) The data type of all fields in all files.
(D) All of the above.
Ans: D
Q.23 A file manipulation command that extracts some of the records from a file is called
(A) SELECT (B) PROJECT
(C) JOIN (D) PRODUCT
Ans: A
Q.24 The physical location of a record is determined by a mathematical formula that trAnsforms
a file key into a record location is :
(A) B-Tree File (B) Hashed File
(C) Indexed File (D) Sequential file.
Ans: B
Q.25 Using Relational Algebra the query that finds customers, who have a balance of over
1000 is
(A) PCustomer_name(s balance >1000(Deposit))
(B) s Customer_name(Pbalance >1000(Deposit))
(C) PCustomer_name(s balance >1000(Borrow))
(D) s Customer_name(Pbalance >1000(Borrow))
Ans: A
Q.26 A primary key is combined with a foreign key creates
(A) Parent-Child relation ship between the tables that connect them.
(B) Many to many relationship between the tables that connect them.
(C) Network model between the tables that connect them.
(D) None of the above.
Ans: A
Q.27 In E-R Diagram derived attribute are represented by
(A) Ellipse (B) Dashed ellipse
(C) Rectangle (D) Triangle
Ans B
Q.28 Cross Product is a:
(A) Unary Operator (B) Ternary Operator
(C) Binary Operator (D) Not an operator
Ans: C
Q.29 An instance of relational schema R (A, B, C) has distinct values of A including NULL
values. Which one of the following is true?
(A) A is a candidate key (B) A is not a candidate key
(C) A is a primary Key (D) Both (A) and (C)
Ans: B
Q.30 Consider the join of a relation R with relation S. If R has m tuples and S has n tuples,
then the maximum size of join is:
(A) mn (B) m+n
(C) (m+n)/2 (D) 2(m+n)
Ans: A
Q.31 The natural join is equal to :
(A) Cartesian Product
(B) Combination of Union and Cartesian product
(C) Combination of selection and Cartesian product
(D) Combination of projection and Cartesian product
Ans: D
Q.32 Which one of the following is not true for a view:
(A) View is derived from other tables.
(B) View is a virtual table.
(C) A view definition is permanently stored as part of the database.
(D) View never contains derived columns.
Ans: C
Q.33 A primary key if combined with a foreign key creates
(A) Parent-Child relationship between the tables that connect them.
(B) Many to many relationship between the tables that connect them.
(C) Network model between the tables that connect them.
(D) None of the above.
Ans: A
Q.34 In E-R Diagram relationship type is represented by
(A) Ellipse (B) Dashed ellipse
(C) Rectangle (D) Diamond
Ans: D
Q.35 Hierarchical model is also called
(A) Tree structure (B) Plex Structure
(C) Normalize Structure (D) Table Structure
Ans: A
Q.36 To delete a particular column in a relation the command used is:
(A) UPDATE (B) DROP
(C) ALTER (D) DELETE
Ans: C
Q.37 The ______ operator is used to compare a value to a list of literals values that have been
specified.
(A) BETWEEN (B) ANY
(C) IN (D) ALL
Ans: A
Q.38 A logical schema
A) is the entire database
B) is a standard way of organizing information into a accessible part
C) describe how data is actually stored on disk
D) none of these
Ans: D
Q.39 A B-tree of order m has maximum of _____________ children
(A) m (B) m+1
(C) m-1 (D) m/2
Ans: A
Q.40 _____________ function divides one numeric expression by another and returns the
remainder.
(A) POWER (B) MOD
(C) ROUND (D) REMAINDER
Ans: B
Q.41 A data manipulation command the combines the records from one or more tables is called
(A) SELECT (B) PROJECT
(C) JOIN (D) PRODUCT
Ans: C
Q.42 In E-R diagram generalization is represented by
(A) Ellipse (B) Dashed ellipse
(C) Rectangle (D) Triangle
Ans: D
Q.43 _________ is a virtual table that draws its data from the result of an SQL
SELECT statement.
(A) View (B) Synonym
(C) Sequence (D) TrAnsaction
Ans: A
Q.44 The method of access which uses key trAnsformation is known as
(A) Direct (B) Hash
(C) Random (D) Sequential
Ans: B
Q.45 A table joined with itself is called
(A) Join (B) Self Join
(C) Outer Join (D) Equi Join
Ans: B
Q.46 _________ data type can store unstructured data
(A) RAW (B) CHAR
(C) NUMERIC (D) VARCHAR
Ans: A




दोस्तों यदि आप को इस जानकारी में कोई त्रुटि या कोई गलती लगे तो कृपया हमें कमेंट बॉक्स में बताएं तथा यह जानकारी  अच्छी लगे तो वेबसाइट को सब्सक्राइब   करें और अपने दोस्तों के साथ शेयर करें

**For more information like this pleas visit our website dally and subscribe this website thank you**

0
By कोई टिप्पणी नहीं:
Labels:
सितंबर 18, 2018

Computer GK-13

Computer General knowledge for all competitive exam like ibps,ssc,mppsc,vyapam,RRB. Don't forget to follow our website to get notifications on your email



451. Dot-matrix is a type of
A) Tape
B) Printer
C) Disk
D) Bus

452. Which is not consisted in a processor
A) ALU
B) CU
C) Memory
D) Registers

453. IBM 1401 is the first computer to enter in Nepal. It belonged to
A) First Generation
B) Second Generation
C) Third Generation
D) Froth Generation

454. The Third Generation Computer was made with             .
A) Vacuum Tube
B) Discrete Components
C) IC
D) Bio Chips

455. Which of the following are the two main components of the
CPU?
A) Control Unit and Registers
B) Registers and Main Memory
C) Control unit and ALU D) ALU and bus

456. Fifth generation computer is also known as
A) Knowledge information processing system
B) Very large scale integration
C) Both of above
D) None of above

457. Second Generation computers were developed during
A) 1949 to 1955
B) 1956 to 1965
C) 1965 to 1970
D) 1970 to 1990

458. What is the name of the computer terminal which gives paper printout?
A) Display screen
B) Soft copy terminal C) Hard copy terminal D) Plotter

459. Programs are executed on the basis of a priority number in a
A) Batch processing system
B) Multiprogramming
C) Time sharing
D) None of these

460. When was Apple Macintosh II microcomputer introduced in the market?
A) 1964
B) 1970
C) 1983
D) 1986

461. When was the world’s first laptop computer introduced in the market and by whom?
A) Hewlett-Packard
B) Epson, 1981
C) Laplink traveling software In1982
D) Tandy model-2000, 1985

462. Today’s computer giant IBM was earlier known by different
name which was changed in 1924. What was that name?
A) Computer Tabulating Recording Co.
B) The Tabulator Ltd.
C) International Computer Ltd.
D) None of above

463. The personnel who deals with the computer and its management put together are called
A) Software
B) Human ware
C) Firmware
D) Hardware


464. Which of the following is input device?
A) scanner B) speaker C) monitor D) projector

465. Which of the following is true?
A) Fields are composed of bytes
B) Records are composed of fields
C) Fields are composed of characters
D) All of above

466. Who built the world’s first electronic calculator using
telephone relays, light bulbs and batteries?
A) Claude Shannon
B) Konrard Zues
C) George Stibits
D) Howard H. Aiken

467. WAN is a most used abbreviation in Networking, what is its full form?
A) WAP Area Network
B) Wide Area Network
C) Wide Array of Network
D) Wireless Access Network

468. In which language is source program written?
A) English
B) Symbolic C) High level D) Temporary

469. Which of the following is correct acronym of VGA?
A) Video Graphics Array
B) Visual Graphics Array
C) Volatile Graphics Array
D) Video Graphics Adapter

470. A song being played on computer speaker is
A) hard output
B) soft output
C) both hard and soft output
D) neither hard nor soft output

471. In the IBM PC-At, what do the words AT stand for
A) Additional Terminals B) Advance technology C) Applied technology
D) Advanced terminology

472. Size of the primary memory of a PC ranges between
A) 2KB to 8KB
B) 64KB & 256KB C) 256KB & 640KB D) None of these

473. What is the number of read-write heads in the drive for a 9- trac magnetic tape?
A) 9
B) 16
C) 18
D) 27

474. Apple company used chips from           for its computers
A) Intel
B) Motorola
C) Both of above
D) None of above

475. Which of the following is a feature of fifth generation computers?
A) Use of natural language
B) artificial intelligence
C) bio-chips
D) All of above

476. Charles Babbage was awarded by Royal Society for his
A)            Difference Engine
B)            Analytic Engine
C)            Binary System in Analytic Engine
D)           His concept of input, mill, output and storage

477. A computer which CPU speed around 100 million instruction per second and with the word length of around 64 bits is known as
A) Super computer B) Mini computer C) Micro computer
D) Macro computer

478. When we look at the cost, which of the following computer is most expensive?
A) Mainframe Computer
B) Mini Computers C) Micro Computers D) Super Computers

479. Which of the following will happen when data is entered into a memory location?
A) It will add to the content of the location
B) It will change the address of the memory location
C) It will erase the previous content
D) It will not be fruitful if there is already some data at the location

480. Which device is used as the standard pointing device in a
Graphical User Environment?
A) Keyboard
B) Mouse
C) Joystick
D) Track ball

481. Mini computers and micro computers are from which generation of computers?
A) First
B) Second
C) Third
D) Fourth

482. Pick the one that is used for logical operations or comparisons such as less than equal to or greater than. A) Arithmetic and Logic Unit
B) Control Unit
C) Both of above
D) None of above

483. The operating speed of third generation computer was
A) Milliseconds B) Microseconds C) Nanoseconds D) Picoseconds

484. Which of the following is true?
A) Mark I was 8 feet long B) Mark I was 2 feet long C) Mark I was 40 feet long D) None of above

485. Charles Babbage is considered the father of modern computers because
A) of his difference engine
B) of his analytical engine
C) his concept of input, mill and output
D) All of above

486. Which of the following is used only for data entry and storage, and never for processing?
A) Mouse
B) Dumb terminal
C) Micro computer
D) Dedicated data entry system


487. What was the first computer brought in Nepal?
A) ICL/2950
B) ENIAC
C) IBM 1401
D) None of above

488. The primary advantage of key-to-tape data entry system is
A) A large percentage of editing can be performed at the time of data entry
B) Key verification is easily performed
C) The tape is reusable
D) Keying errors can be detected as they occur.

489. Basic is              language.
A) a procedural
B) an object oriented
C) both A and B
D) none of the above

490. A computer Program that translates one program instruction at a time into machine language is called a/an
A) Interpreter
B) CPU
C) Compiler
D) Simulator

491. Which of the following have the fastest access time?
A) Semiconductor Memories
B) Magnetic Disks C) Magnetic Tapes D) Compact Disks

492. The first electronic general purpose digital computer built by Eckert and Mauchly called ENIAC did not work on the stored program concept. How many numbers could it store in its internal memory?
A) 100
B) 20
C) 40
D) 80

493. The computer that process both analog and digital is called
A) Analog computer B) Digital computer C) Hybrid computer
D) Mainframe computer

494. What was the name of the first commercially available microprocessor chip?
A) Intel 308
B) Intel 33
C) Intel 4004
D) Motorola 639

495. Which of the following class of computers can process physical quantities such as speed?
A) Analog Computers B) Digital Computers C) Hybrid Computers D) None of above

496. How many types of storage loops exists in magnetic bubble memory
A) 8
B) 4
C) 16
D) 2

497. When did IBM introduce the 20286 based PC/AT?
A) 1982
B) 1984
C) 1985
D) 1989

498. The silicon chips used for data processing are called
A) RAM chips
B) ROM chips
C) Micro processors
D) PROM chips

499. Which computers used operating systems by Microsoft?
A) IBM PCs
B) Apple/Macintosh PCs
C) IBM Compatibles
D) Both A & C

500. One of the main feature that distinguish microprocessors from micro-computer is
A) Words are usually large in microprocessors
B) Words are shorter in microprocessors
C) Microprocessor does not contain I/O device
D) Exactly the same as the machine cycle time
451-B     452-C     453-B     454-C     455-C     456-A    457-B     458-C     459-B     460-C
461-B     462-B     463-B     464-A    465-D    466-C     467-B     468-C     469-A    470-B
471-B     472-C     473-A    474-B     475-D    476-A    477-A    478-D    479-C     480-B
481-D    482-A    483-C     484-D    485-C     486-B     487-C     488-C     489-A    490-A
491-A    492-B     493-C     494-C     495-A    496-D    497-B     498-C     499-D    500-C

दोस्तों यदि आप को इस जानकारी में कोई त्रुटि या कोई गलती लगे तो कृपया हमें कमेंट बॉक्स में बताएं तथा यह जानकारी  अच्छी लगे तो वेबसाइट को सब्सक्राइब   करें और अपने दोस्तों के साथ शेयर करें**For more information like this pleas visit our website dally and subscribe this website thank you**

0
By कोई टिप्पणी नहीं:
Labels:
सितंबर 15, 2018

Computer GK-12

Computer General knowledge for all competitive exam like ibps,ssc,mppsc,vyapam,RRB. Don't forget to follow our website to get notifications on your email


401. Which was the computer conceived by Babbage?
A) Analytical Engine
B) Arithmetic Machine
C) Donald Kunth
D) All of above

402. The processing speed of first generation computers was
A) milliseconds B) microseconds C) nanoseconds D) picoseconds

403. Model 5100 was            in 1957.
A) The first PC built by IBM
B) The first PC built by Apple
C) The first PC built by Motorola
D) The first PC built by Intel

404. VGA is
A) Video Graphics Array
B) Visual Graphics Array
C) Volatile Graphics Array
D) Video Graphics Adapter

405. A kind of scanner MICR is the short form of
A) Magnetic Ink Character Reader
B) Magnetic Ink Code Reader
C) Magnetic Ink Cases Reader
D) None

406. Which of the following is not a class based on size?
A) Mainframe Computer
B) Micro Computer
C) Mini Computer
D) Digital Computer

407. Which 8-bit chip was used in many of today’s TRS-80 computers?
A) Z-8000
B) Motorola 6809
C) Z-8808
D) Z-80

408. Which of the following disk is fixed disk?
A) Hard Disks
B) Flash Disks
C) Blu-Ray Disks
D) DVDs

409. Which of the following professions has not been affected by personal computers?
A) Medical
B) Clerical and law
C) Accounting
D) None of the above

410. The word Abacus is derived from Abax, a word from
A) Latin language
B) Greek Language C) Sanskrit language D) Ancient Egypt

411. In latest generation computers, the instructions are executed
A) Parallel only
B) Sequentially only
C) Both sequentially and parallel
D) All of above

412. Which of the following memory medium is not used as main memory system?
A) Magnetic core
B) Semiconductor C) Magnetic tape D) Both a and b

413. An online backing storage system capable of storing larger quantities of data is
A) CPU
B) Memory
C) Mass storage
D) Secondary storage

414. A kind of serial dot-matrix printer that forms characters with magnetically-charged ink sprayed dots is called
A) Laser printer
B) Ink-jet printer C) Drum printer D) Chan printer

415. Which of the following does not affect the resolution of a video display image?
A) Bandwidth
B) Raster scan rage
C) Vertical and horizontal lines of resolution
D) Screen size


416. Which of the following printing devices an output composed of a series of data?
A) Wire matrix printer
B) Band printer
C) Wang image printer
D) Both a and c

417. Which of the following is an example of fifth generation computer?
A) PIM/m
B) ICL 2950
C) IBM 1401
D) None of above

418. Magnetic disks are the most popular medium for
A) Direct access
B) Sequential access
C) Both of above
D) None of above

419. Which of the following is not a third generation computer?
A) IBM 360
B) IBM 1401
C) PDP-8
D) HP2115

420. The number of records contained within a block of data on magnetic tape is defined by the
A) Block definition
B) Record contain clause
C) Blocking factor
D) Record per block

421. Mark I is also known as
A) American Sequence Controlled Calculator
B) Automatic Sequence Calculating Controller C) American Sequence Controlled Computer D) Automatic Sequence Controlled Calculator

422. Which of the following registers is loaded with the contents of the memory location pointed by the PC?
A) Memory address registers
B) Memory data registers
C) Instruction register
D) Program counter

423. Which of the following are the cheapest memory devices in terms of Cost/Bit?
A) Semiconductor memories
B) Magnetic Disks C) Compact Disks D) Magnetic Tapes

424. MIS is designed to provide information needed for effective decision making by?
A) Consumers
B) Workers
C) Foremen
D) Managers

425. Which is valid statement
A) 1 KB = 1024 Bytes
B) 1 MB = 1024 Bytes C) 1 KB = 1000 Bytes D) 1 MB = 1000 Bytes

426. Latency time is
A) Time to spin the needed data under head
B) Time to spin the needed data under track
C) Time to spin data under sector
D) All of above

427. Who built the first Mechanical Calculator
A) Joseph Marie Jacquard
B) John Mauchly
C) Blaise Pascal
D) Howard Aiken

428. The most important advantage of a video disk is
A) Compactness
B) Potential capacity
C) Durability
D) Cost effectiveness

429. Which of the following generation computers had expensive operation cost?
A) First
B) Second
C) Third
D) Fourth

430. An IBM system/38 represents the computer class of:
A) Small-scale computer
B) Medium-scale computer
C) Large-scale computer
D) Super computer

431. Another word for a daisy wheel printer
A) Petal printer
B) Golf ball printer
C) Laser printer
D) Line printer

432. Cursor is a                 
A) Pixel
B) Thin blinking line C) Pointing device D) None of these

433. Which device is used to backup the data?
A) Floppy Disk
B) Tape
C) Network Drive
D) All of the above

434. Which of the following printers are you sure will not to use if your objective is to print on multi carbon forms?
A) Daisy wheel B) Dot matrix C) Laser
D) Thimble

435. Which of the following items are examples of storage devices?
A) Floppy / hard disks
B) CD-ROMs
C) Tape devices
D) All of the above

436. ASCII and EBCDIC are the popular character coding systems.
What does ASCII stand for?
A) American Stable Code for International Interchange B) American Standard Case for Institutional Interchange C) American Standard Code for Information Interchange D) American Standard Code for Interchange Information

437. Which computers are used as servers for any medium sized organizations?
A) Mainframe Computer
B) Mini Computers C) Micro Computers D) Super Computers

438. Slide Rules was invented in
A) 1614
B) 1617
C) 1620
D) None of above

439. A normal CD-ROM usually can store up to                data?
A) 680 KB
B) 680 Bytes
C) 680 MB D) 680 GB


440. Which of the following required large computer memory?
A) Imaging B) Graphics C) Voice
D) All of above

441. Which was the computer conceived by Babbage?
A) Analytical engine
B) Arithmetic machine
C) Donald Knuth
D) All of above

442. The lower deck of an abacus is known as
A) heaven
B) sky
C) earth
D) floor

443. All modern computer operate on
A) Information
B) Floppies
C) Data
D) Word

444. The computer that can input analog signals and return result in digital form
A) Analog Computers B) Digital Computers C) Hybrid Computers
D) Mainframe Computers

445. Offline device is
A) A device which is not connected to CPU B) A device which is connected to CPU
C) A direct access storage device
D) An I/O device

446. What is the latest write-once optical storage media?
A) Digital paper
B) Magneto-optical disk
C) WORM disk
D) CD-ROM disk

447. Which of the following programming language started from second generation?
A) LISP B) C
C) QBASIC
D) FORTRAN

448. Which one of the following input device is user- programmable?
A) Dumb terminal B) Smart terminal C) VDT
D) Intelligent terminal

449. Floppy disks typically in diameter
A) 3?
B) 5.25? C) 8?
D) All of above

450. Current SIMMs have either     or    connectors (pins)
A) 9 or 32
B) 30 or 70
C) 28 or 72
D) 30 or 72
401-A    402-A    403-A    404-A    405-A    406-D    407-D    408-A    409-D    410-A
411-C     412-C     413-C     414-B     415-D    416-D    417-A    418-C     419-B     420-C
421-D    422-C     423-C     424-D    425-A    426-A    427-C     428-B     429-A    430-A
431-B     432-B     433-D    434-C     435-D    436-C     437-B     438-C     439-C     440-D
441-A    442-C     443-C     444-C     445-A    446-D    447-D    448-D    449-D    450-D

0
By कोई टिप्पणी नहीं:
Labels:
सितंबर 14, 2018

Computer GK-11

Computer General knowledge for all competitive exam like ibps,ssc,mppsc,vyapam,RRB. Don't forget to follow our website to get notifications on your email


351. Number crunchier is the informal name for
A) Mini computer B) Super computer C) Microcomputer
D) Mainframe computer

352. RATS stand for
A) Regression Analysis Time Series B) Regression Analysis Time Sharing C) Real Analysis Series
D) All of above

353. Which technology is used in Compact disks?
A) Mechanical
B) Electrical
C) Electro Magnetic
D) Laser

354. Different components of the motherboard of a PC unit are linked together by sets of parallel electrical conducting lines. What are these lines called?
A) Conductors
B) Buses
C) Connectors
D) Consecutives

355. Which is the first electronic digital computer?
A) ENIAC B) MARK I C) Z3
D) ABC

356. Which of the following is a storage device?
A) Tape
B) Hard Disk
C) Floppy Disk
D) All of the above

357. The metal disks, which are permanently housed in, sealed and contamination free containers are called
A) Hard disks
B) Floppy disk
C) Winchester disk
D) Flexible disk

358. A computer program that converts an entire program into machine language is called a/an
A) Interpreter
B) Simulator
C) Compiler
D) Commander

359. Intel corporation produces chips for which computers?
A) IBM PCs
B) Apple/Macintosh PCs
C) Both of above
D) None of above

360. The first microprocessor built by the Intel corporation was called
A) 8008
B) 8080
C) 4004
D) 8800

361. Which of the following is not a class of computers based on size?
A) Mainframe Computers
B) Mini Computers C) Micro Computers D) Super Computers

362. Who invented EDSAC?
A) John v. Neumann
B) J.P. Eckert and John Mauchley
C) Maurice Wilkes
D) Howard Aiken

363. EEPROM stands for
A) Electrically Erasable Programmable Read Only Memory
B) Electronic Erasable Programmable Read Only Memory
C) Easily Erasable Programmable Read Only Memory
D) Easily Erasable Programmable Read Only Memory

364. Which of the following is a class of computers based on model?
A) Digital Computer
B) Hybrid Computers C) Analog Computers D) AT Computers

365. What are the computers called that performs calculations and comparisons usually in the binary numbering system? A) Analog Computers
B) Digital Computers
C) Hybrid Computers
D) None of above

366. ASCII stands for
A) American Standard Code for Information Interchange
B) American Scientific Code for International Interchange C) American Standard Code for Intelligence Interchange D) American Scientific Code for Information Interchange

367. The data recording format in most of the modern magnetic tape is
A) 7-bit ASCII
B) 7-bit EBCDIC C) 8-bit ASCII
D) 8-bit EBCDIC


368. Why ABC computer is called so?
A) Because it was developed by Atanasoff and Berry
B) Because it was thought to be the first computer so named with first alphabets of English
C) Both of above are the reason to name the computer ABC D) None of above are true

369. Who designed the first electronics computer ? ENIAC/
A) Von Neumann
B) Joseph M Jacquard
C) J. P. Eckert and J. W. Mauchly
D) All of above

370. Central Processing Unit is combination of
A) Control and storage
B) Control and output unit
C) Arithmetic logic and input unit
D) Arithmetic logic and control unit

371. IBM 1401 computer was
A) Mainframe Computer
B) Mini Computers C) Micro Computers D) None of above

372. Time during which a job is processed by the computer is
A) Delay times
B) Real time
C) Execution time
D) Down time

373. CD-ROM stands for
A) Compactable Read Only Memory
B) Compact Data Read Only Memory
C) Compactable Disk Read Only Memory
D) Compact Disk Read Only Memory

374. Which unit converts user data into machine readable form?
A) Input unit
B) Output unit
C) ALU
D) Control Unit

375. Which unit is known as nerve center of computer?
A) ALU B) CU
C) Memory
D) Registers

376. What does the disk drive of a computer do?
A) Rotate the disk
B) Read the disk
C) Load a program from the disk into the memory
D) Both b and c

377. Access time is
A) seek time + latency time
B) seek time
C) seek time
D) latency time

378. Who invented the microprocessor?
A) Marcian E Huff
B) Herman H Goldstein
C) Joseph Jacquard
D) All of above

379. MICR stands for
A) Magnetic Ink Character Reader
B) Magnetic Ink Code Reader C) Magnetic Ink Case Reader D) None of the above

380. The Width of a processor’s data path is measured in bits.
Which of the following are common data paths?
A) 8 bits
B) 12 bits C) 16 bits D) 32 bits

381. MSI is the abbreviation of
A) Medium Scale Integrated
B) Medium System Integrated
C) Medium Scale Intelligent
D) Medium System Intelligent

382. IMB launched its first personal computer called IBM-PC in
1981. It had chips from Intel, disk drives from Tandon, operating system from Microsoft, the printer from Epson and the application software from everywhere. Can you name the country which contribute
A) India
B) China
C) Germany
D) Taiwan

383. Which statement is valid about interpreter?
A) It translates one instruction at a time
B) Object code is saved for future use
C) Repeated interpretation is not necessary
D) All of above

384. Easily reloctable language is
A) Machine language
B) Assembly language
C) High level language
D) Medium level language

385. Which of the following memories needs refresh?
A) SRAM B) DRAM C) ROM
D) All of above

386. Through which device the main components of the computer communicate with each other?
A) Keyboard
B) System Bus
C) Monitor
D) Memory

387. What type of device is computer keyboard?
A) Memory
B) Output C) Storage D) Input

388. Which is the limitation of high level language?
A) Lower efficiency
B) Machine dependence
C) machine level coding
D) None of above

389. An example of a digital device can be
A) Digital clock
B) Automobile speed meter
C) Clock with a dial and two hands
D) All of the above

390. Which of the following is not true?
A) Transistors are much smaller
B) Transistors produce low heat
C) Transistors were less reliable
D) Transistors were used in radios and other electronic devices

391. A characteristic of card systems is:
A) Slowness in processing data
B) Using cards as records of transactions
C) Needing a larger DP staff
D) All of the above


392. The full form of EEPROM is
A) Electrically Erasable Programmable Read Only Memory
B) Easily Erasable Programmable Read Only Memory
C) Electronic Erasable Programmable Read Only Memory
D) None of the above

393. The original ASCII code used__bits of each byte, reserving that last bit for error checking
A) 5
B) 6
C) 7
D) 8

394. A computer programmer
A) Does all the thinking for a computer
B) Can enter input data quickly
C) Can operate all types of computer equipments
D) Can draw only flowchart

395. Fifth generation computer is also known as
A) Knowledge information processing system
B) Very large scale integration (VLSI) C) Both of above
D) None of above

396. The commonly used standard data code to represent alphabetical, numerical and punctuation characters used in electronic data processing system is called
A) ASCII
B) EBCDIC C) BCD
D) All of above

397. Which of the following have low failure rate?
A) mechanical devices
B) electronic devices
C) electro-mechanical devices
D) None of above

398. Which of the following memories need refresh?
A) SRAM B) DRAM C) ROM
D) All of the above

399. A typical personal computer used for business purposes would have   of RAM.
A) 4 KB B) 16 K C) 64 K D) 256 K

400. The ALU of a computer normally contains a number of high speed storage element called
A) Semiconductor memory
B) Registers
C) Hard disks
D) Magnetic disk




351-b     352-A    353-D    354-B     355-D    356-D    357-C     358-C     359-A    360-C
361-D    362-C     363-A    364-D    365-B     366-A    367-D    368-B     369-C     370-D
371-A    372-C     373-D    374-A    375-A    376-D    377-A    378-A    379-A    380-A
381-A    382-D    383-B     384-B     385-B     386-B     387-D    388-A    389-A    390-C
391-D    392-A    393-C     394-A    395-A    396-D    397-B     398-B     399-D    400-B

0
By कोई टिप्पणी नहीं:
Labels: