Thursday 30 March 2017

AMIE Computer Science Section B | AMIE



Choose from above subjects.


Computer Science MCQ solved | DRDO CSE | CSE Mcq

1) Poor response times are usually caused by 

A. Process busy

B. High I/O rates

C. High paging rates

D. Any of the above


2) ........... runs on computer hardware and serve as platform for other software to run on ...

A. Operating system

B. Application Software

C. System Software

D. All


3) Which of the following about addresses is true?

A. they have a unique identifier

B. their contents will not change

C. their identifier will not be same

D. none of the above


4) Which of the following program is not a utility?

A. Debugger

B. Editor

C. Spooler

D. All of the above


5) The number of digits a number system uses to represent the numbers in the system is called ...

A. base

B. basic

C. radix

D. base or radix


6) Each time you turn the power switch on which control files the computer will check 

A. command.com, IO.sys

B. command.com, dat.com, dir.com

C. command.com, IO.sys, MSDOS.sys

D. chkdsk.exe


7) ............ interface consists of things like program counter, registers, interrupts and terminals.

A. Hardware

B. Software

C. Data 

D. None


8) The number of bits that a computer can process at a time in parallel is called the ...

A. Word length

B. Speed

C. Accuracy

D. Diligence


9) The binary equivalent of 20 is ......

A. 11111

B. 10100

C. 10101

D. 10011


10) .............. is the first program run on a computer when the computer boots up

A. System software

B. Operating system

C. System operations

D. None



11) The decimal equivalent of 111111 is ...

A. 25

B. 40

C. 65

D. none of the above


12) A system that synchronizes hardware and software to produce electronic tones is a ....

A. Synthesizer

B. Plain talk

C. Voice type

D. MIDI


13) ............ shares characteristics with both hardware and software.

A. Operating system

B. Software

C. Data 

D. None


14) How many characters can be coded in ASCII-7?

A. 7

B. 128

C. 256

D. none of the above


15) Which of the following is a portable computer?

A. Laptop

B. Sub-note books

C. PDAS

D. All of the above


16) Multiprogramming systems ..

A. Are easier to develop than single programming systems

B. Execute each job faster

C. Execute more jobs in the same time period

D. Are used only large mainframe computers


17) Microsecond is ....

A. thousand of a second

B. millionth of a second

C. billionth of a second

D. trillionth of a second


18) How many characters can be coded in ASCII-8 and EBCDIC?

A. 7

B. 128

C. 256

D. none of the above


19) The primary purpose of an operating system is .....

A. 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


20) The main function of computer is/are ....

A. receive input and produce output

B. information processing

C. information storage

D. all of the above



Answers:
1) D. Any of the above
2) A. Operating system
3) A. they have a unique identifier
4) C. Spooler
5) D. base or radix
6) C. command.com, IO.sys, MS-DOS.sys
7) A. Hardware
8) A. Word length
9) B. 10100
10) B. Operating system
11) D. none of the above
12) D. MIDI
13) A. Operating system
14) B. 128
15) D. All of the above
16) C. Execute more jobs in the same time period
17) B. millionth of a second
18) C. 256
19) A. To make the most efficient use of the computer hardware
20) D. all of the above

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1. In which shortcut key use to center the selecting text.

A) Ctrl+F

B) Ctrl+E

C) Ctrl+M

D) None of the above


2. You can Hyperlink the file

A) Pressing the Ctrl+Enter

B) Pressing Ctrl+Shift+Enter

C) Break command from view menu

D) Both A and C


3. Which of the following is not a part of standard office suite?

A) Word Processor

B) Database

C) Image Editor

D) File Manager


4. Which bar is usually located below that title bar that provides categorized options?

A) Menu bar

B) Toolbars

C) Status Bar

D) All of the above


5. Which of the following are valid Minimum and Maximum zoom size in MS Word?

A) 20, 200

B) 10, 300

C) 10, 500

D) 15, 400


6. Which of the following are the Minimum and Maximum font size of MS Word?

A) 1, 72

B) 2, 128

C) 4, 1800

D) 1, 1638


7. We can insert Maximum number of Columns are

A) 35

B) 45

C) 25

D) 15


8. To move the cursor page to page of documents.

A) Ctrl+ Page Down

B) Ctrl+Page UP

C) Both of the above

D) None of the above


9. The four types of mail merge main documents are

A) Form letters, directories, catalogs and envelopes

B) Form letters, Envelops and Mailing labels, directories and lists

C) Basic letters, envelopes, labels and list

D) Form letters, envelopes, mailing labels and catalog


10. You can break the active column using

A) Break From Insert Command

B) Ctrl+Shift+Enter

C) Ctrl+Enter

D) Both A and B

Answers:
1.  B) Ctrl+E
2.  D) Both A and C
3.  D) File Manager
4.  C) Status Bar
5.  C) 10, 500
6.  D) 1, 1638
7.  B) 45
8.  C) Both of the above
9   D) Form letters, envelopes, mailing labels and catalog
10 D) Both A and B

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1. Which of the following is/ are the part of operating system?
A) Kernel services
B) Library services
C) Application level services
D) All of the above

2. The system of ............... generally ran one job at a time. These were called single stream batch processing.
A) 40's
B) 50's
C) 60's
D) 70's


3. In ............. generation of operating system, operating system designers develop the concept of multi-programming in which several jobs are in main memory at once.
A) First
B) Second
C) Third
D) Fourth


4. State True or False.
i) In spooling high speed device like a disk is interposed between running program and low-speed device in Input/output.
ii) By using spooling for example instead of writing directly to a printer, outputs are written to the disk.
A) i-True, ii-False
B) i-True, ii-True
C) i-False, ii-True
D) i-False, ii-False

5. Which of the following is/are the functions of operating system?
i) Sharing hardware among users.            ii) Allowing users to share data among themselves.
iii) Recovering from errors.                          iv) Preventing users from interfering with one another.
v) Scheduling resources among users.
A) i, ii, iii and iv only
B) ii, iii, iv and v only
C) i, iii, iv and v only
D) All i, ii, iii, iv and v

6. .................. executes must frequently and makes the fine grained decision of which process to execute the next.
A) Long-term scheduling
B) Medium-term scheduling
C) Short-term scheduling
D) None of the above

7. With ................ a page is brought into main memory only when the reference is made to a location on that page.
A) demand paging
B) main paging
C) prepaging
D) postpaging

8. ....................... provides a larger sized of virtual memory but require virtual memory which provides multidimensional memory.
A) Paging method
B) Segmentation method
C) Paging and segmentation method
D) None of these

9. ............... is a large kernel containing virtually the complete operating system, including, scheduling, file system, device drivers and memory management.
A) Multilithic kernel
B) Monolithic kernel
C) Micro kernel
D) Macro kernel

10. ............... is a large operating system core provides a wide range of services.
A) Multilithic kernel
B) Monolithic kernel
C) Micro kernel
D) Macro kernel
Answers:
1.       D) All of the above
2.       B) 50's
3.       C) Third
4.       B) i-True, ii-True
5.       D) All i, ii, iii, iv and v
6.       C) Short-term scheduling
7.       A) demand paging
8.       B) Segmentation method
9.       B) Monolithic kernel
10.      D) Macro kernel

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1) The process of storing extra or duplicate information used for rebuilding the lost information in event of disks failure is known as ...

A. stripping

B. redundancy

C. disk array

D. RAID


2) A thread that is to be canceled is often referred to as the ....

A. target thread 

B. thread cancellation

C. asynchronous cancellation

D. defined cancellation


3) ........... ensures the every message sent to a group of receivers will be delivered to either all of them or none of them. 

A. Ordered delivery

B. Atomicity 

B. Survivability 

D. Realiability


4) An arrangement of record in a sequence in which they arrive is known as a ...........

A. pile 

B. file

C. disk 

D. directory


5) ........... also known as monitor mode. 

A. User mode 

B. System mode

C. Unprivileged mode

D. Process mode


6) The technique, for sharing the time of a computer among several jobs, which switches jobs so rapidly such that each job appears to have the computer to itself, is called ........

A. time sharing

B. time out 

C. time domain

D. multitasking


7) For batch and payroll applications which of the following file organization is better ........

A. random file

B. sequential file

C. indexed file 

D. hashed file


8) Name the scheduler that selects among the processes that are ready to execute and allocates the CPU to one of them. 

A. Long term scheduler

B. Medium term scheduler 

C. Job scheduler

D. Short term scheduler


9) Failure during inter-process communication may be due to .....

A. loss of request transfer unit

B. single datagram messages 

C. multi datagram messages

D. message passing


10) The process of direct mapping by using some faster algorithms is called as .........

A. hashing 

B. searching

C. sorting 

D. indexing


11) Name the system in which the processors do not share memory and each processor that its own local memory.

A. Tightly coupled system

B. Parallel processing system

C. Loosely coupled system

D. Batch processing system


12) Which technique was introduced because a single job could not keep both the CPU and I/O devices busy?

A. Time-sharing

B. Spooling

C. preemptive scheduling

D. Multiprogramming 


13) Those directories in which the root directory has all system file and no other sub-directory is known as ...

A. flat directory

B. single directory

C. hierarchical directory

D. indexed directory


14) Which is responsible for maintaining all the important abstractions of the operating system?

A. Kernel

B. System libraries

C. System utilities

D. Daemons


15) A four message reliable IPC protocol for client server communication works as ........

A. request, reply, acknowledgment

B. reply, acknowledgment, request, acknowledgment

C. request, acknowledgment, reply, acknowledgment 

D. request, request, reply, acknowledgment 


16) A path name that starts at root directory is ..........

A. absolute

B. relative

C. hybrid

D. hierarchical 


17) Where does the problem of fragmentation occur?

A. Static storage allocation

B. Static allocation storage 

C. Stack allocation with dynamic binding

D. Heap allocation


18) Idempotency basically means .........

A. reliability 

B. repeatability 

C. Survivability

D. flexibility


19) All path names are specified relative to the working directory ........

A. absolute path name 

B. relative path name

C. hybrid path name

D. hierarchical path name


20) The time taken by the disk arm to locate the specific address of a sector for getting information is called ........

A. rotational latency

B. seek time

C. search time 

D. response time

Answers:
1) B. redundancy
2) A. target thread 
3) B. Atomicity
4) A. pile 
5) B. System mode
6) A. time sharing
7) B. sequential file
8) D. Short term scheduler
9) B. single datagram messages 
10) A. hashing 
11) C. Loosely coupled system
12) D. Multiprogramming 
13) A. flat directory
14) A. Kernel
15) C. request, acknowledgment, reply, acknowledgment 
16) A. absolute
17) D. Heap allocation
18) B. repeatability 
19) B. relative path name
20) B. seek time

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1. Pressing F8 key for three times selects

 A) A word
 B) A sentence
 C) A paragraph
 D) Entire document


2. What happens if you press Ctrl + Shift + F8?

 A) It activates extended selection
 B) It activates the rectangular selection
 C) It selects the paragraph on which the insertion line is.
 D) None of above


3. How can you disable extended selection mode?

 A) Press F8 again to disable
 B) Press Del to disable
 C) Press Esc to disable
 D) Press Enter to disable


4. What does EXT indicator on status bar of MS Word indicate?

 A) It indicates whether the external text is pasted on document or not
 B) It indicates whether extended add-ons are installed on MS Word or not
 C) It indicates whether Extended Selection mode is turned on or off
 D) None of above


5. What is the maximum number of lines you can set for a drop cap?

 A) 3
 B) 10
 C) 15
 D) 20


6. What is the default number of lines to drop for drop cap?

 A) 3
 B) 10
 C) 15
 D) 20


7. What is the shortcut key you can press to create a copyright symbol?

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


8. How many columns can you insert in a word document in maximum?

 A) 35
 B) 45
 C) 55
 D) 65


9. What is the smallest and largest font size available in Font Size tool on formatting toolbar?

 A) 8 and 72
 B) 8 and 64
 C) 12 and 72
 D) None of above


10. What is the maximum font size you can apply for any character?

 A) 163
 B) 1638
 C) 16038
 D) None of above


11. Which of the following is graphics solution for Word Processors?

 A) Clipart
 B) WordArt
 C) Drop Cap
 D) All of above


12. The keystrokes Ctrl + I is used to

 A) Increase font size
 B) Inserts a line break
 C) Indicate the text should be bold
 D) Applies italic format to selected text


13. A character that is raised and smaller above the baseline is known as

 A) Outlined
 B) Raised
 C) Superscript
 D) Subscript


14. What is the purpose of inserting header and footer in document?

 A) To enhance the overall appearance of the document
 B) To mark the starting and ending of page
 C) To make large document more readable
 D) To allow page headers and footers appear on document when printed


15. Which of the following function key activates the speller?

 A) F5
 B) F7
 C) F9
 D) Shift + F7


16. The minimum number of rows and columns in MS Word document is

 A) 1 and 1
 B) 2 and 1
 C) 2 and 2
 D) None of above


17. Thesaurus tool in MS Word is used for

 A) Spelling suggestions
 B) Grammar options
 C) Synonyms and Antonyms words
 D) All of above


18. Why Drop Caps are used in document?

 A) To drop all the capital letters
 B) To automatically begin each paragraph with capital letter
 C) To begin a paragraph with a large dropped initial capital letter
 D) None of above


19. 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?

 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


20. A word processor would most likely be used to do

 A) Keep an account of money spent
 B) Do a computer search in media center
 C) Maintain an inventory
 D) Type a biography


Answers

1-B, 2-B, 3-C, 4-C, 5-B, 6-A, 7-A, 8-B, 9-A, 10-B, 11-A, 12-D, 13-C, 14-D, 15-B, 16-A, 17-C, 18-C, 19-C, 20-D





Thursday 23 March 2017

Highest Internet Speed in India | Startup Village

Most of us think only counties like USA and china having Internet speed in Gbps but its good to know that in India we have internet speed of 1 Gbps (1000 Mbps ). Yes that's true its in Startup Village in Kochi.

Google pics
The new connectivity comes as a milestone in our efforts to ensure the most conducive atmosphere of growth for the increasing number of incubatees. World-class infrastructure facilities will prompt the young companies to perform and meet the global competition," said Startup Village CEO Sijo George Kuvilla.


Read more here :

https://en.wikipedia.org/wiki/Startup_Village

https://yourstory.com/2016/07/startup-village/

http://gadgets.ndtv.com/internet/news/gigabit-internet-comes-to-india-at-kochis-startup-village-300295


Tuesday 14 March 2017

Importance of Resources | Resources V/S Money

Nowadays we all are so busy that we can't even wait for while for anything. We need each and everything on spot. Sometime we compare money with resources and found money is much important than resources. Let me tell you the value of our resources.

We have seen many people around us wasting food at food courts , ordering extent amount of food which they will not consume. If we ask them they will say it's our money. But they should be aware of this thing that "Resources are much important than money"

If a person is squeezing toothpaste till last drop of it then we say "How miser guy is this". But if each family use toothpaste just one extra day before throwing it away, then it can play a enormous role in saving our resources. We have around 1,200,536,286 household population,  you can imagine just a single drop of toothpaste can play a big role in utilizing our resources. Just think about this!


Source : Google pics

We all should make it habit to fully utilize a resource before buying others. If we have more money then we should spend it in organizing resources not for wasting them.