8/12/2019 Ut2-Seta Class Xii(Info) Session 2012

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DELHI PUBLIC SCHOOL GHAZIABAD

UNIT TEST NO -2 (SET-A)

INFORMATICS PRACTICES (CLASS- XII)

 

TIME 1 HOUR M.M. 35 

GENERAL INSTRUCTIONS:-

• All !"#$%&'# " C&*+!l#&,.

• M# " %/"' %' 0&'$ &0 " !"#$%&'.

Q.1.

(a) State two reasons for which you may like to use a computer network instead of stand alonecomputer.

(b) Give one advantage and one disadvantage of co-aial cables and !"# cables.

Q.$.(a) %hich communication media would you suggest to be procured by a company for connecting

its local offices in &ew 'elhi for very effective and fast communication

(b) khil is transferring songs from his mobile to his friend*s mobile via +luetooth connection. &ame the type of network used by khil used for this purpose.

Q.,.

(a) r. a/eev wants to upload and download files from 0 to a remote nternet server2 write thename of the relevant communication protocol to be used in this case.

(b) amesh is using a software which is downloaded from nternet free of cost but after one moth

of trial he has been asked to pay a license fee for using that software2 &ame the category in

which this software fall.

Q.3. avina is confused between the terms 'omain &ame and !4. 5plain the difference in them by taking a suitable eample.

Q.6. 7ow will you prevent 0counter threats to network securityQ.8. %rite the full form and functions of following protocols

(i) 7""# (ii) S"#

Q.9. S!'0l&4" G&!+ &0 I'#$%$!$%&'# %' G%67 is setting up the network among its different

 branches. "here are four branches named as +:2 #Q2 &# and ;<=. 'istance between various

 branches are given below >

+ranch &# to ;<= 9 ?m

+ranch ;<= to #Q 3 ?m

+ranch #Q to +: , ?m

+ranch &# to +: 3 ?m &umber of computers >

+ranch &# 1,9

+ranch ;<= 86

+ranch +: $@

+ranch #Q @A

(i) Suggest a suitable topology for networking the computer of all the branches.

(ii)  &ame the branch where the server  should be installed. Bustify your answer.

(iii) Suggest the placement of hub or switches in the network.

(iv) ention any economic way to provide internet accessibility to all branches.

8/12/2019 Ut2-Seta Class Xii(Info) Session 2012

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Q.A.

(a) 5pand the following terms-

  OSI8 FLOSS8 FSF8 GNU8

(b) &ame two encoding used for ndian 4anguage :omputing.

Q.@.

(a) %hy do we use try and catch block while writing the B'+: code to establish a connection

 between Bava and <SQ4(b) %rite the name of oCilla*s %eb browser.

Q.1D. ention any two advantages of Epen Source Software over #roprietary Software.

Q.11. :ompare and :ontrast>-(i) ""F and E"F (ii) Static and dynamic fonts.

Q.1$ :onsider a table shopkeeper  in <SQ4 with the following attributes

  (shopkeeper*s ' varchar (6)2 &ame varchar ($D)2 ddress varchar(6D)2 :ityvarchar(,D)2 #hone bigint(1D) ).

Write the complete java code to establish a JDBC connection between MYS! and Java

 "orm using #$% B$&#S 'D$( (nsert the data in the backend with proper validations).

sample screen shot is given for your reference>-

Q.1,

(a) %rite the full form of BF: and #. (b) 5plain the meaning of following statements with respect to B'+: connectivity.lso tell the

 purpose for which they will be used in a program code

(%) %*+&$ 9/.#l.; (%%) %*+&$ 9/<.#4%'.=O+$%&'P'";

Q.13.

(a) 'efine packages with respect to B'+: connectivity.

(b) %hat is the purpose of using statement ob/ect in B'+: programming code.

B&'!# !"#$%&'

%ould you suggest open source software(ESS) for an organisation or sector where the performance isthe factor of utmost importance2 such as ilitary. 5plain with suitable reasons.