29 November Wednesday

I.C.T.(Information and Communication Technology)

വെബ് ഡെസ്‌ക്‌Updated: Monday Oct 16, 2017

(കഴിഞ്ഞ ലക്കത്തില്‍നിന്ന് തുടര്‍ച്ച)
13. Which of the following correctly lists computer memory types from highest to lowest speed ?                                                                                                                                                  
(1) Secondary Storage; Main Memory (RAM);Cache Memory;CPU Registers                                                                                                                     
(2) CPU Registers; Cache Memory; Secondary Storage; Main Memory (RAM)                                                                                                                       
(3) CPU Registers; Cache Memory; Main Memory (RAM); Secondary Storage                                                                                                                                        
(4) Cache Memory; CPU Registers; Main Memory (RAM); Secondary Storage                                     
[Speed  is inversely proportional to storage. Here storage comes at the end of 2 choices 3and4. So the ansewer is 3or4 .The highest speed is from CPU Registers;  So the answer is (3) The sequence is  CPU Registers; Cache Memory; Main Memory (RAM); Secondary Storage (hard disk)]                                                                                                                                                                                                                               

14). Which of the following statement(s) is/are TRUE ?                                                           S1 : The decimal number 11 is larger than the hexadecimal number11.                                                                                                              
S2 : In the binary number 1110.101, the fractional part has the decimal value as 0.625.                                                                                                                                                 
(1) S1 only     (2) S2 only     (3) Both
S1 and S2      (4) Neither S1 nor S2.                                         [There are 4 number systems namely  Decimal number system, Binary number system, Octor number system and  Hexadecimal number system.We can not compare the same number in different systems.Hence S1is false.  Now, we can take 0.625.We get 
0.625into2=1.250-------1                                                        0,250into 2=0.500------0                                                             0.500into2 =1,000------1 Thus fraction part is 101                                      S1is false  and S2 is true. Hence answer is (2)]                 
15). Read the following two statements :                                                                                                         
I : Information and Communication Technology (ICT) is considered a subset of Information Technology (IT).                                                                                                                       
II : The 'right to use' a piece of software is termed as copyright.                                                                 Which of the above statement(s) is/are CORRECT ?                                                             
(1) Both I and II         (2) Neither I nor II        (3) II only     (4) I only                           
[I.C.T is a subset of I.T.  Hence statement (1)is correct. We canot use copy right material with out permission. Only open sourse material can be used freely.The second statement is not correct. Hence the answer is(4)]

16). Which of the following is a characteristic of Web2.0 applications ?   
(1) Multiple users schedule their time to use Web2.0 applications one by one.                                                 Web2.0 applications are focused on the abiltiy for people to collaborate and share information online.                                                                                                                             
(3) Web2.0 applications provide users with content rather than facilitating users to create it.                                                                                                                                
(4) Web2.0 applications use only staticpages.                                                                                      
[Web 2.0 refers to World Wide Web websites that emphasize user-generated content, usabiltiy (ease of use, even by non-experts), and interoperabiltiy (this means that a website can work well with other products,systems, and devices) By Web2.0 ,we can collaborate/share/create applications.We can create/share messages in Facebook or Twitter.  Hence (2) is the answer].    
17). With regard to a word processing software, the process of combining static information in a publication together with variable information in a data source to create one merged publication is called                                                                                                                                      
(1) Eletcronic mail    
(2) Data sourcing    
(3)Mail merge     
(4) Spam mail                            
[Eletcronic mail (e-mail) is a method of exchanging messages between people using eletcronics. A data source is simply the source of the data. It can be a file, a particular database. The data might be located on the same computer as the program, or on another computer somewhere on a network. Mail merge is the automatic addition of names and addresses from a database to letters and envelopes in order to facilitate sending mail, especially advertising, to many addresses.Email spam, also known as junk email or unsolicited bulk email (UBE), is a subset of spam that involves nearly identical messages sent to numerous recipients by email. Static information is sent from one part  to other by Mail merging .Hence answer is (3) ]

18). DVD technology uses an optical media to store the digital data. DVD is an acronym for   
(1) Digital Vector Disc  
(2) Digital Volume Disc                                     
(3) Digital Versatile Disc
(4) Digital VisualizationDisc                                                                 
[DVD technology uses an optical media to store the digital data. DVD is an acronym for. Digital Volume Disc Short for Digital Versatile Disc or Digital Disc,  DVD or DVD-ROM is a disc capable of storing large amounts of data on one disc.The full form of D.V.D.is Digital Versatile Disc .Hence the answer is(3)]                                                                                                                                                       

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