Who proposed the relational model?


Options: Bill Gates B. E.F. Codd C. Herman Hollerith D. Charles Babbage

Ans:– B ,


Description: mcqquestions

Asked in: KCC-2018   |   JOA 556-2018  |  HRTC JTO-2017

Hits Today: 17512 | Level: Moderate




Got some suggestion about this question or to make this site better? Please leave your comments below.


Want to see where do you stand among other aspirants in "Computer" Category?

Click Here to take quick 5 mins MCQ test to find out.

More Database Systems Related questions:


. Command Interpreter is also known as
Options: a. Prompt b. Shell c. Command d. DOS Prompt

Ans:0 – b ,0 – b


. The primary purpose of an operating system is:
Options: To make the most efficient use of the computer hardware B. To allow people to use the computer, C. To keep systems programmers employed D. To make computers easier to use

Ans: – A ,


Which class of IP address has the most host addresses available by default?
Options: A,    B,    C,    A and B

Ans:A ,A


. Slides can have
Options: a. title, text, graphs b. drawn objects, shapes c. clipart, drawn art, visual d. any of the above

Ans:9 – D ,9 – D


Which of the following commands can be used to get information about all users who are currently logged into the system?
Options: which,    who,    who am i,    1 /u

Ans:B ,B


Which, of the following, is true for testing and debugging?
Options: Testing checks for logical errors in the programs, while debugging is a process of correcting those errors in the program,    Testing detects the syntax errors in the program while debugging corrects those errors in the program,    Testing and debugging indicate the same thing,    All of the above

Ans:A ,A


Why does a successfully mapped network drive disappear every time you boot the computer?
Options: The computer you are connected to has moved,    You didn't click reconnect on log on,    The map statement is not in the autoexec.bat file,    The last drive was not set correctly

Ans:C ,C


Which of the following is not a factor to consider when switching from small to large block size?
Options: The length of all of the fields in a table row.,    The number of columns,    Block contention,    Random row access speed

Ans:B ,B


The value of a capacitor can be made larger by:
Options: increasing the area of the plates,    decreasing the area of the plates,    increasing the frequency of the applied voltage,    increasing the voltage applied to the plates

Ans:A ,A


16. How much space in minimum must be provided between columns?
Options: a. 0″ b. 0.5″ c. 1″ d. 1.5″

Ans:– A ,– A


. How can you remove borders applied in cells?
Options: a. Choose None on Border tab of Format cells b. Open the list on Border tool in Formatting toolbar then choose first tool (no border) c. Both of above d. None of above

Ans:– c,– c


. EBCDIC stands for
Options: A) Extended Binary Coded Decimal Interchange Code B) Extended Bit Code Decimal Interchange Code C) Extended Bit Case Decimal Interchange Code D) Extended Binary Case Decimal Interchange Code

Ans:A,A


To activate the previous cell in a pre-selected range, press
Options: a. The Alt key b. The Tab key c. The Enter key d. None of the above

Ans:D,None of the above


. The MS DOS operating system is a
Options: a. Graphical user interface, single tasking operating system b. Graphical user interface, multitasking operating system c. Command driven interface, single tasking operating system d. Command driven interface, multitasking operating system

Ans:9 – c ,9 – c


Paging
Options: is a method of memory allocation by which the program is subdivided into equal portions, or pages and core is subdivided into equal portions or blocks.,    consists of those addresses that may be generated by a processor during execution of a computation.,    is a method of allocating processor time.,    allows multiple programs to reside in separate areas of core at the time.

Ans:A ,A


If you wanted to deny FTP access from network 200.200.10.0 to network 200.199.11.0 but allow everything else, which of the following command strings is valid?
Options: access-list 110 deny 200.200.10.0 to network 200.199.11.0 eq ftp access-list 111 permit ip any 0.0.0.0 255.255.255.255,    access-list 1 deny ftp 200.200.10.0 200.199.11.0 any any,    access-list 100 deny tcp 200.200.10.0 0.0.0.255 200.199.11.0 0.0.0.255 eq ftp,    access-list 198 deny tcp 200.200.10.0 0.0.0.255 200.199.11.0 0.0.0.255 eq ftp access-list 198 permit ip any 0.0.0.0 255.255.255.255

Ans:D ,D


Which is not a factor when categorizing a computer?
Options: Speed of the output device,    Amount of main memory the CPU can use,    Cost of the system,    Capacity of the hard disk

Ans:E ,E


Which of the following is an essential file of a MS-DOS boot disk?
Options: COMMAND.COM B. START.COM C. TREE.COM D. VER.COM

Ans: A ,COMMAND.COM


. To display hidden files
Options: a. Dir/hidden b. Attrib/ah c. Dir/ah d. None of above

Ans:1 – c ,1 – c


. Which report section prints once at the bottom of every printed page?
Options: a. Detail b. Page Header c. Page Footer d. Report Header

Ans:5 – c ,5 – c


What is the name given to the weapons which use computerised guidance system?
Options: Guided weapons,    Smart weapons,    Dumb weapons,    Starwars weapons

Ans:B,Smart weapons


A bookmark is an item or location in document that you identify as a name for future reference. Which of the following task is accomplished by using bookmarks?
Options:  A) To add anchors in web page, B) To mark the ending of a paragraph of document, C) To quickly jump to specific location in document, D) To add hyperlinks in webpage,

Ans:-C,-C


. Which one is the last column header in Excel 2007?
Options: a. XFD b. XFX c. XFL d. XFT

Ans:– a,– a


. Bit map terminal
Options: A) support display containing multiple window B) require considerable amount of video RAM C) requires tremendous amount of copying and hence low performance D) all of above

Ans:D,D


After doing a low-level format, what would be the next step in configuring the hard drive in a system?
Options: Format DOS partition,    Install operating system,    Configure DMA channel and back-up interrupt,    Partition had disk

Ans:A ,A


An Audit trial is
Options: a feature of data processing systems that allows for the study of data as processed from step to step; and auditor can then trace all transactions that affect an account.,    a data item that characterizes an object,    two or more data items handled as a unit,    All of the above

Ans:A ,A


You type Router#sh ru and receive an % ambiguous command error. Why did you receive this message?
Options: The command requires additional options or parameters.,    There is more than one show command that starts with the letters ru.,    There is no show command that starts with ru.,    The command is being executed from the wrong router mode.

Ans:B ,B


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

Ans:A,A


A UML diagram includes which of the following?
Options: Class name,    List of attributes,    List of operations,    All of the above.

Ans:D ,D


Which bitwise operator is suitable for turning off a particular bit in a number?
Options: && operator,    & operator,    || operator,    ! operator

Ans:B ,B


Which command will display the CHAP authentication process as it occurs between two routers in the network?
Options: show chap authentication,    show interface serial 0,    debug ppp authentication,    debug chap authentication

Ans:C ,C


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

Ans:B,B


A file containing relatively permanent data is
Options: Random file,    Transaction file,    Master file,    Sequential file

Ans:C ,C


Which WLAN IEEE specification allows up to 54Mbps at 2.4GHz?
Options: A,    B,    G,    N

Ans:C ,C


Which of the following might be used by a company to satisfy its growing communications needs?
Options: front-end processor,    multiplexer,    controller,    concentrator

Ans:E ,E


Which of the following characteristic(s) is/are suited to the PSS applications?
Options: bursty traffic and low communications intensity,    widely dispersed terminals and access to international packets switched services,    Multiple remote host or applications accessed by a single local access circuit terminal and circuit,    All of the above

Ans:D ,D


Programmers refer to the items needed to reach a problem's goal as the _____
Options: Input,    Out put,    Processing,    Purpose

Ans:A ,A


Which of the following is usually a special one-time operation that must be completed over a limited time period?
Options: Batch,    Patch,    Project,    Word

Ans:C ,C


A database language concerned with the definition of the whole database structure and schema is ________
Options: a. DCL b. DML c. DDL d. All of above

Ans:ndash; c,ndash; c


A person who has the responsibility for development of a new product (such a instant coffee) in a firm is called a
Options: brand manager,    project manager,    development manager,    market manager

Ans:B ,B


What command is used to create a backup configuration?
Options: copy running backup,    copy running-config startup-config,    config mem,    wr mem

Ans:B ,B


. For what Antikyathera was used?
Options: A) For counting B) For Calculating tax collection C) For calculating astronomical positions D) For calculating firing weapons

Ans:9-C,9-C


A development strategy whereby the executive control modules of a system are coded and tested first, is known as
Options: Bottom-up development,    Top-down development,    Left-Right development,    All of the above

Ans:B ,B


Which of the following technique is used for fragment?
Options: a technique used in best-effort delivery systems to avoid endlessly looping packets,    a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame,    one of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size,    All of the above

Ans:C ,C


In which stage the following code #include<stdio.h> gets replaced by the contents of the file stdio.h
Options: During editing,    During linking,    During execution,    During preprocessing

Ans:D ,D


Which language has recently become the de-facto standard for interfacing application programs with relational database system?
Options: Oracle,    SQL,    dBASE,    4GL

Ans:B ,B


What is the name given to the molecular-scale computer?
Options: Femtocomputer,    Nanocomputer,    Supercomputer,    Microcomputer

Ans:B,B


The process of reading a database schema and producing a data model from that schema is known as:
Options: data modeling.,    database design.,    reverse engineering.,    None of the above is correct.

Ans:C ,C


The coming together of three technologies i.e. microelectronics, computing and communications has ushered in
Options: information explosion,    information technology,    business revolution,    educational upgradation

Ans:B ,B


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

Ans:D,D

www.000webhost.com