General Computer Knowledge - in Hindi

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Which of the following is a non volatile memory?


निम्न में से कौन सी नानवालेटाइल मेमोरी है?

A)

DRAM


B)

SRAM


C)

ROM


D)

RAM



Correct Answer :

ROM


Explanation :

Read Only Memory: ROM is non-volatile memory, which do not loose their content on failure of power supply.

A ROM is a form of semiconductor memory technology used where the data is written once and then not changed.

Which shortcut key is used to select the entire document in MS Word ?

A) Alt + A/एम एस. वर्ड में पूरे दस्तावेज को चुनने के लिए उपयोग किया जाता है?
B) Shift + A
C) Ctrl + A
D) Enter + A

Correct Answer :Ctrl + A

Which shortcut key is used to close the opened window?

A) Ctrl + F1
B) Alt + F2
C) Ctrl + F4
D) Alt + F4

Correct Answer :Alt + F4

Which shortcut key is used to select an entire column in M S Excel?

A) Ctrl + Enter
B) Ctrl + Space
C) Ctrl + Alt
D) Ctrl + Shift

Correct Answer :Ctrl + Space

Which of the following is not used for computer memory measurement?

A) Nibble
B) Byte
C) MIPS
D) Bit

Correct Answer :MIPS

Which one of the following was the first computer network?

A) CNNET
B) NSF NET
C) ASAPNET
D) ARPANET

Correct Answer :ARPANET

For an internet connection which of the following device is required?


इंटरनेट कनेक्शन के लिए कौन सी डिवाइस उपयोग की जाती है?
A) Mouse/माउस
B) Modem/मोडेम
C) Printer/प्रिंटर
D) Scanner/स्केनर

Correct Answer :Modem

Which of the following are the storage devices?
(I) Hard disk.
(II) Floppy Disk
(III) CD ROM

A) I and II
B) II and III
C) I and III
D) I, II and III

Correct Answer :I, II and III

What is the use of name box in MSExcel?


एम.एस. एक्सल में नेम बाक्स का क्या उपयोग हैं?
A) Displays the Sum
B) Used to type formulas
C) Displays the address of the cell
D) Used to insert rows and columns

Correct Answer :Displays the address of the cell

Which shortcut key is used to delete an entire word, in MSWord?


कौन सा शॉर्टकट MSWord में, एक पूरे शब्द हटाने के लिए प्रयोग किया जाता है?
A) Ctrl + Delete
B) Alt + delete
C) Shift Backspace
D) Ctrl+D

Correct Answer :Ctrl + Delete

In MS Excel _________ is written before writing any formula?


MS Excel में सूत्र लिखने से पहले _________ लिखा जाता है?
A) =
B) >
C) <
D) %

Correct Answer :=

Which protocol is the protocol of the internet?


निम्न मे से कौन सी प्रोटोकाल इंटरनेट प्रोटोकाल है?
A) SFTP
B) HTTP
C) TCP/IP
D) HTTPs

Correct Answer :TCP/IP

Bluetooth is an example of which type of network?

A) Personal Area network
B) Local Area network
C) Virtual private network
D) Wide area Network

Correct Answer :Personal Area network

What is the full form of OSI?


ओ. एस. आई. का पूरा नाम क्या हैं?
A) Open system inter connection
B) Operating system interface
C) Optical service implementation
D) Optical Status Identification

Correct Answer :Open system inter connection

Which of the following are the three components of CPU (Central Processing Unit) of a Computer?

A) CU, ALU and Output
B) Output, MU and CU
C) Input, MU and ALU
D) ALU, MU and CU

Correct Answer :ALU, MU and CU

Which of the following is not an input device?


निम्न में से कौन सा इनपुट डिवाइस नहीं हैं?
A) Mouse/माउस
B) Speaker/स्पीकर
C) Microphone /माइक्रोफोन
D) Joystick/जॉयस्टिक

Correct Answer :Speaker

Which of the following electronic devices was used in First generation Computers?

A) Microprocessor
B) Vacuum Tube
C) Transistor
D) Integrated Circuit

Correct Answer :Vacuum Tube

Every NIC (Network Interface Card) has its own _____address that identifies the PC on the network?

A) MAD
B) PAC
C) MAC
D) SAT

Correct Answer :MAC

Which language is directly understood by the computer without translating it?

A) Machine language
B) Hardware language
C) Inter language
D) Soft language

Correct Answer :Machine language

Which of the following can be the extension of MS Word document?

A) .doc
B) .exe
C) .txt
D) .dll

Correct Answer :.doc

MSExcel is an example of ?

A) A word Processor
B) Spread Sheet software
C) Both (a) and (b)
D) Neither (a) nor (b)

Correct Answer :Spread Sheet software

Which is a functional key used to display ‘save as’ box?


सेव एज बॉक्स को प्रदर्शित करने के लिए किस बटन उपयोग किया जाता है?
A) F10
B) F12
C) F9
D) F11

Correct Answer :F12

In MS Excel, by default the number are ___________ Aligned ?

A) Left
B) Right
C) Justified
D) Center

Correct Answer :Right

In M.S. Word, what is the use of “Alt + Shift + d”?


एम एस वर्ड में “Alt + Shift + d” उपयोग क्या है?
A) Inserts a table
B) Inserts date
C) Inserts the logo
D) Inserts picture

Correct Answer :Inserts date

What is of the following network device is used to join two network segments together?


निम्नलिखित नेटवर्क डिवाइस में एक साथ दो नेटवर्क क्षेत्रों में शामिल करने के लिए प्रयोग किया डिवाइस क्या है?
A) Bridge/ब्रिज
B) Repeater /रिपिटर
C) Firewall/फ़ायरवॉल
D) Bus/बस

Correct Answer :Bridge

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If the perimeter of a rectangle is 10 cm and the area is 4 cm2, then its length is?

Height and Distance

An aeroplane flying at a height of 300 m above the ground passes vertically above another plane at an instant when the angles of elevation of the two planes from the same point on the ground are 60º and 45º respectively. What is the height of the lower plane from the ground?

From the top of a building 90 m high, the angles of depression of the top and the bottom of a tree are 30º and 45º respectively. What is the height of the tree?

Trigonometry

What is the value of sinx √( 1 /1+cosx + 1 /1-cosx ) ?

What is cos4 A - sin4 A / cos2 A - sin2 A equal to?

If 7sin2 x +3cos2 x = 4, 0 < x < 90º ,then what is the value of tan x?

If x = a cosθ + b sinθ and y = a sinθ - b cosθ then what is x2 + y2 equal to?

Average

The mean of 5 numbers is 15. If one more number is included, the mean of the 6 numbers becomes 17. What is the included number?

The mean marks obtained by 300 students in a subject are 60. The mean of top 100 students was found to be 80 and the mean of last 100 students was found to be 50. The mean marks of the remaining 100 students are?

In an asymmetrical distribution, of the mean and median of the distribution are 270 and 220 respectively, then the mode of the data is?

Let a, b, c, d, e, f, g be consecutive even numbers and j, k, l, m, n be consecutive odd numbers. What is the average of all the numbers?

Alligation or Mixture

25 kg of alloy X is mixed with 125 kg of alloy Y. If the amount of lead and tin in the alloy X is the ratio 1 : 2 and the amount of lead and tin in the alloy Y is in the ratio 2 : 3, then what is the ratio of lead to tin in the mixture?

Simplification

The ratio of two numbers is 1 : 5 and their product is 320. What is the difference between the square of these two numbers?