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CBSE Class 12 Board Exam 2019 : Computer Science

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SET-4 Series BVM Code No. 91 Candidates must write the Code on the Roll No. title page of the answer-book. Please check that this question paper contains 27 printed pages. Code number given on the right hand side of the question paper should be written on the title page of the answer-book by the candidate. Please check that this question paper contains 7 questions. Please write down the Serial Number of the question before attempting it. 15 minute time has been allotted to read this question paper. The question paper will be distributed at 10.15 a.m. From 10.15 a.m. to 10.30 a.m., the students will read the question paper only and will not write any answer on the answer-book during this period. COMPUTER SCIENCE Time allowed : 3 hours Maximum Marks : 70 General Instructions : (i) SECTION A refers to programming language C++. (ii) SECTION B refers to programming language Python. (iii) SECTION C is compulsory for all. (iv) Answer either SECTION A or SECTION B. (v) It is compulsory to mention on the page 1 in the answer-book whether you are attempting SECTION A or SECTION B. (vi) All questions are compulsory within each section. (vii) Questions 2(b), 2(d), 3 and 4 have internal choices. 91 1 P.T.O. SECTION A [Only for candidates, who opted for C++] 1. (a) (b) (c) (d) 91 Write the names of any four fundamental data types of C++. Write the names of the correct header files, which must be included in the following C++ code to compile the code successfully : void main() { char L[]="CS 2018"; int N=strlen(L); cout<<L[N-1]; } Rewrite the following C++ program after removing any/all syntactical error(s). Underline each correction done in the code : Note : Assume all required header files are already included in the program. #define Area(L,B) = L*B structure Recta { int Length,Breadth; }; void main() { Recta R = [10,15]; cout<<Area(Length.R,Breadth.R); } Find and write the output of the following C++ program code : Note : Assume all required header files are already included in the program. void Alter(char *S1, char *S2) { char *T; T=S1; S1=S2; S2=T; cout<<S1<<"&"<<S2<<end1; } void main() { char X[]="First", Y[]="Second"; Alter(X,Y); cout<<X<<"*"<<Y<<end1; } 2 2 1 2 2 (e) Find and write the output of the following C++ program code : Note : Assume all required header files are already included in the program. 3 void Convert(float &X, int Y=2) { X=X/Y; Y=X+Y; cout<<X<<"*"<<Y<<endl; } void main() { float M=15, N=5; Convert(M,N); Convert(N); Convert(M); } (f) Observe the following C++ code and find the possible output(s) from the options (i) to (iv) following it. Also, write the minimum and maximum values that can possibly be assigned to the variable End. Note : Assume all the required header files are already being included in the code. The function random(N) generates any possible integer between 0 and N-1 (both values included). 2 void main() { randomize(); int A[]={10,20,30,40,50,60,70,80}; int Start = random(2) + 1; int End = Start + random(4); for(int I=Start; I<=End, I++) cout<<A[I]<<"$"; } 91 (i) 10$20$30$ (ii) 20$30$40$50$60$ (iii) 30$40$50$60$ (iv) 40$50$60$70$ 3 P.T.O. 2. (a) Given the following class Test and assuming all necessary header file(s) included, answer the questions that follow the code : class Test { int Marks; char TName[20]; public: Test(int M) { Marks = M; } Test(char S[]) { strcpy(TName,S); } Test(char S[], int M) { Marks = M; strcpy(TName,S); } Test(Test &T) { Marks = T.Marks + 10; strcpy(TName,T.TName); } }; void main() { Test T1(10); Test T2(70); Test T3(30, "PRACTICAL"); _______________; } (i) (ii) 91 //Function 1 //Function 2 //Function 3 //Function 4 //Statement //Statement //Statement //Statement I II III IV Which of the statement(s) out of (I), (II), (III), (IV) is/are incorrect for object(s) of the class Test ? 1 What is Function 4 known as ? Write the Statement IV, that would execute Function 4. 1 4 (b) Observe the following C++ code and answer the questions (i) and (ii). Note : Assume all necessary files are included. class Point { int X,Y; public: Point(int I=10, int J=20) //Function 1 { X = J; Y = I; } void Show() //Function 2 { cout<< " Points are " << X << " & " << Y <<endl; } ~Point() //Function 3 { cout<<"Points Erased"<<endl; } }; void main() { Point P(5); P.Show(); } (i) (ii) For the class Point, what is Function 3 known as ? When is it executed ? 1 What is the output of the above code, on execution ? 1 OR (b) 91 Explain Polymorphism in context of Object Oriented Programming. Also give a supporting example in C++. 5 2 P.T.O. (c) Write the definition of a class GRAPH in C++ with following description : 4 Private Members XUnit // integer YUnit // integer Type // char array of size 20 AssignType() /* Member function to assign value of Type based upon XUnit and YUnit as follows : */ Condition Type XUnit = 0 Or YUnit = 0 None XUnit is more than YUnit Bar XUnit is less than or equal to YUnit Line Public Members InXY() /* Function to allow user to enter values of XUnit and YUnit and then invoke AssignType() to assign value of Type */ OutXY() 91 // Function to display XUnit, Yunit and Type 6 (d) Answer the questions (i) to (iv) based on the following : class Ground { int Rooms; protected: void Put(); public: void Get(); }; 4 class Middle : private Ground { int Labs; public: void Take(); void Give(); }; class Top : public Middle { int Roof; public: void In(); void Out(); }; void main() { Top T; } (i) Which type of Inheritance out of the following is illustrated in the above example ? (ii) (iii) (iv) Single Level Inheritance, Multilevel Inheritance, Multiple Inheritance Write the names of all the members, which are directly accessible by the member function Give() of class Middle. Write the names of all the members, which are directly accessible by the member function Out() of class Top. Write the names of all the members, which are directly accessible by the object T of class Top declared in the main() function. OR 91 7 P.T.O. (d) Consider the following class HeadQuarter class HeadQuarter { int Code; char Des[20]; protected : char Address[40]; public: void Get(){cin>>Code;gets(Des);gets(Address);} void Put(){cout<<Code<<Des<<Address<<endl;} }; Write a code in C++ to protectedly derive another class FrontOffice from the base class HeadQuarter with following members. Data Members 4 Location of type character of size 10 Budget of type double Member Functions A constructor function to assign Budget as 100000 Assign() to allow user to enter Location and Budget Display() to display Location and Budget 3. (a) Write a user-defined function NoTwoThree(int Arr[], int N) in C++, which should display the value of all such elements and their corresponding locations in the array Arr (i.e. the array index), which are not multiples of 2 or 3. N represents the total number of elements in the array Arr, to be checked. Example : If the array Arr contains 0 1 2 3 4 25 8 12 49 9 Then the function should display the output as : 25 at location 0 49 at location 3 OR 91 8 3 (a) Write a user-defined function ReArrange(int Arr[], int N) in C++, which should swap the contents of the first half locations of the array Arr with the contents of the second half locations. N (which is an even integer) represents the total number of elements in the array Arr. 3 Example : If the array Arr contains the following elements (for N = 6) 0 1 2 3 4 5 12 5 7 23 8 10 Then the function should rearrange the array to become 0 1 2 3 4 5 23 8 10 12 5 7 NOTE : (b) DO NOT DISPLAY the Changed Array contents. Do not use any other array to transfer the contents of array Arr. Write definition for a function XOXO(char M[4][4]) in C++, which replaces every occurrence of an X with an O in the array, and vice versa. For example : ORIGINAL ARRAY M 2 CHANGED ARRAY M X X O X O O X O O X O O X O X X O O X X X X O O X X O O O O X X NOTE : DO NOT DISPLAY the Changed Array contents. Do not use any other array to transfer the contents of array M. OR 91 9 P.T.O. (b) Write definition for a function ColSwap(int A[4][4]) in C++, which swaps the contents of the first column with the contents of the third column. 2 For example : ORIGINAL ARRAY A CHANGED ARRAY A 10 15 20 25 20 15 10 25 30 35 40 45 40 35 30 45 50 55 60 65 60 55 50 65 70 75 80 85 80 75 70 85 NOTE : (c) DO NOT DISPLAY the Changed Array contents. Do not use any other array to transfer the contents of array A. Let us assume P[20][10] is a two-dimensional array, which is stored in the memory along the row with each of its elements occupying 2 bytes, find the address of the element P[10][5], if the address of the element P[5][2] is 25000. 3 OR (c) Let us assume P[20][30] is a two-dimensional array, which is stored in the memory along the column with each of its elements occupying 2 bytes. Find the address of the element P[5][6], if the base address of the array is 25000. 91 3 10 (d) Write a user-defined function Pop(Book B[], int &T), which pops the details of a Book, from the static stack of Book B, at the location T (representing the Top end of the stack), where every Book of the stack is represented by the following structure : struct Book { int Bno; char Bname[20]; }; 4 OR (d) For the following structure of Books in C++ struct Book { int Bno; char Bname[20]; Book *Link; }; Given that the following declaration of class BookStack in C++ represents a dynamic stack of Books : class BookStack { Book *Top; //Pointer with address of Topmost Book of Stack public: BookStack() { Top = NULL; } void Push(); //Function to push a Book into the dynamic stack void Pop(); //Function to pop a Book from the dynamic stack ~BookStack(); }; Write the definition for the member function void BookStack::Push(), that pushes the details of a Book into the dynamic stack of BookStack. 91 11 4 P.T.O. (e) (e) 4. (a) (a) (b) Evaluate the following Postfix expression, showing the stack contents : 2 250,45,9,/,5,+,20,*,OR Convert the following Infix expression to its equivalent Postfix expression, showing the stack contents for each step of conversion : 2 A + B * C ^ D - E A text file named MESSAGE.TXT contains some text. Another text file named SMS.TXT needs to be created such that it would store only the first 150 characters from the file MESSAGE.TXT. Write a user-defined function LongToShort() in C++ that would perform the above task of creating SMS.TXT from the already existing file MESSAGE.TXT. OR A text file named CONTENTS.TXT contains some text. Write a user-defined function LongWords() in C++ which displays all such words of the file whose length is more than 9 alphabets. For example : if the file CONTENTS.TXT contains : "Conditional statements of C++ programming language are if and switch" Then the function LongWords() should display the output as : Conditional statements programming Write a user-defined function TotalPrice() in C++ to read each object of a binary file STOCK.DAT, and display the Name from all such records whose Price is above 150. Assume that the file STOCK.DAT is created with the help of objects of class Stock, which is defined below : class Stock { char Name[20]; float Price; public: char* RName() { return Name; } float RPrice() { return Price; } }; OR 91 12 3 3 2 (b) A binary file DOCTORS.DAT contains records stored as objects of the following class : class Doctor { int DNo; char Name[20]; float Fees; public: int *GetNo() { return DNo; } void Show() { cout<<Dno<<" * " <<Name<< " * " <<Fees<<endl;} }; (c) Write definition for function Details(int N) in C++, which displays the details of the Doctor from the file DOCTORS.DAT, whose DNo matches with the parameter N passed to the function. Find the output of the following C++ code considering that the binary file STOCK.DAT exists on the hard disk with the following 5 records for the class STOCK containing Name and Price. Name Price Rice 110 Wheat 60 Cheese 200 Pulses 170 Sauce 150 2 1 void main() { fstream File File.open("STOCK.DAT",ios::binary|ios::in); Stock S; for (int I=1; I<=2; I++) { File.seekg((2*I-1)*sizeof(S)); File.read((char*)&S, sizeof(S)); cout << "Read : " << File.tellg()/sizeof(S)<< endl; } File.close(); } OR (c) 91 Differentiate between seekg() and tellg(). 13 1 P.T.O. SECTION B [Only for candidates, who opted for Python] 1. (a) Write the names of any four data types available in Python. 2 (b) Name the Python Library modules which need to be imported to invoke the following functions : 1 (c) (i) sqrt() (ii) start() Rewrite the following code in python after removing all syntax error(s). Underline each correction done in the code. 2 250 = Number WHILE Number<=1000: if Number=>750: print Number Number=Number+100 else print Number*2 Number=Number+50 (d) Find and write the output of the following python code : Msg1="WeLcOME" Msg2="GUeSTs" Msg3="" for I in range(0,len(Msg2)+1): if Msg1[I]>="A" and Msg1[I]<="M": Msg3=Msg3+Msg1[I] elif Msg1[I]>="N" and Msg1[I]<="Z": Msg3=Msg3+Msg2[I] else: Msg3=Msg3+"*" print Msg3 91 14 2 (e) Find and write the output of the following python code : 3 def Changer(P,Q=10): P=P/Q Q=P%Q print P,"#",Q return P A=200 B=20 A=Changer(A,B) print A,"$",B B=Changer(B) print A,"$",B A=Changer(A) print A,"$",B (f) What possible output(s) are expected to be displayed on screen at the time of execution of the program from the following code ? Also specify the minimum values that can be assigned to each of the variables BEGIN and LAST. 2 import random VALUES=[10,20,30,40,50,60,70,80] BEGIN=random.randint(1,3) LAST=random.randint(BEGIN,4) for I in range(BEGIN,LAST+1): print VALUES[I],"-", (i) 30 - 40 - 50 - (iii) 30 - 40 - 50 - 60 91 (ii) 10 - 20 - 30 - 40 (iv) 30 - 40 - 50 - 60 - 70 15 P.T.O. 2. (a) Write four features of object oriented programming. (b) class Box: #Line 1 L = 10 #Line 2 Type="HARD" #Line 3 def __init__(self,T,TL=30): #Line 4 self.Type = T #Line 5 self.L #Line 6 = TL def Disp(self): #Line 7 print self.Type,Box.Type #Line 8 print self.L,Box.L B1=Box("SOFT",20) #Line 9 #Line 10 B1.Disp() #Line 11 Box.Type="FLEXI" #Line 12 B2=Box("HARD") #Line 13 B2.Disp() #Line 14 Write the output of the above Python code. 2 OR (b) class Target: #Line 1 def __init__(self): #Line 2 self.X = 20 #Line 3 self.Y = 24 #Line 4 def Disp(self): #Line 5 print self.X,self.Y def __del__(self): #Line 6 #Line 7 print "Target Moved" def One(): #Line 8 #Line 9 T=Target() #Line 10 T.Disp() #Line 11 One() 91 2 #Line 12 16 (i) What are the methods/functions mentioned in Line 2 and Line 7 specifically known as ? (ii) Mention the line number of the statement, which will call and execute the method/function shown in Line 2. (c) Define a class HOUSE in Python with the following specifications : 2 4 Instance Attributes - Hno # House Number - Nor # Number of Rooms - Type # Type of the House Methods/function - AssignType() # To assign Type of House # based on Number of Rooms as follows : Nor Type <=2 LIG ==3 MIG >3 HIG - Enter() # To allow user to enter value of # Hno and Nor. Also, this method should # call AssignType() to assign Type - Display() 91 # To display Hno, Nor and Type 17 P.T.O. (d) 91 Answer the questions (i) to (iii) based on the following : class Furniture(object): #Line def __init__(self,Q): #Line self.Qty = Q def GetMore(self,TQ): #Line self.Qty =self.Qty+TQ def FRDisp(self): #Line print self.Qty 1 2 3 4 class Fixture(object): def __init__(self,TQ): self.Qty=TQ def GetMore(self,TQ): self.Qty =self.Qty+TQ def FXDisp(self): print self.Qty #Line 5 #Line 6 class Flat(Furniture,Fixture): def __init__(self,fno): self.Fno=fno Q=0 if self.Fno<100: Q=10 else: Q=20 Furniture.__init__(self,Q): Fixture.__init__(self,Q): def More(self,Q): Furniture.GetMore(self,Q) Fixture.GetMore(self,Q) def FLDisp(self): print self.Fno, Furniture.FRDisp(self) Fixture.FXDisp(self) FL=Flat(101) FL.More(2) FL.FLDisp() #Line 9 #Line 10 18 #Line 7 #Line 8 #Line 11 #Line 12 #Line 13 #Line 14 #Line 15 (i) Write the type of the inheritance illustrated in the above. 1 (ii) Find and write the output of the above code. 2 (iii) What is the difference between the statements shown in Line 11 and Line 12 ? 1 OR (d) 3. (a) Define inheritance. Show brief python example of Single Level, Multiple and Multilevel Inheritance. 4 Consider the following randomly ordered numbers stored in a list : 106, 104, 106, 102, 105, 10 Show the content of list after the First, Second and Third pass of the selection sort method used for arranging in ascending order. 3 Note : Show the status of all the elements after each pass very clearly encircling the changes. OR (a) Consider the following randomly ordered numbers stored in a list : 106, 104, 106, 102, 105, 107 Show the content of list after the First, Second and Third pass of the bubble sort method used for arranging in descending order. 3 Note : Show the status of all the elements after each pass very clearly encircling the changes. (b) Write definition of a method/function AddOddEven(VALUES) to display sum of odd and even values separately from the list of VALUES. For example : If the VALUES contain [15, 26, 37, 10, 22, 13] The function should display Even Sum: 58 3 Odd Sum: 65 OR 91 19 P.T.O. (b) Write definition of a method/function HowMany(ID,Val) to count and display number of times the value of Val is present in the list ID. For example : If the ID contains [115,122,137,110,122,113] and Val contains 122 The function should display 3 122 found 2 Times (c) Write QueueUp(Client) and QueueDel(Client) methods/functions in Python to add a new Client and delete a Client from a List of Clients names, considering them to act as insert and delete operations of the Queue data structure. 4 OR (c) (d) Write PushOn(Book) and Pop(Book) methods/functions in Python to add a new Book and delete a Book from a List of Book titles, considering them to act as push and pop operations of the Stack data structure. 4 Write a python method/function Swapper(Numbers) to swap the first half of the content of a list Numbers with second half of the content of list Numbers and display the swapped values. 2 Note : Assuming that the list has even number of values in it. For example : If the list Numbers contains [35,67,89,23,12,45] After swapping the list content should be displayed as [23,12,45,35,67,89] OR (d) Write a python method/function Count3and7(N) to find and display the count of all those numbers which are between 1 and N, which are either divisible by 3 or by 7. For example : If the value of N is 15 The sum should be displayed as 7 (as 3,6,7,9,12,14,15 in between 1 to 15 are either divisible by 3 or 7) 91 20 2 (e) Evaluate the following Postfix expression, showing the stack contents : 2 250,45,9,/,5,+,20,*,OR (e) Convert the following Infix expression to its equivalent Postfix expression, showing the stack contents for each step of conversion : 2 A + B * C ^ D - E 4. (a) Write a statement in Python to open a text file WRITEUP.TXT so that new content can be written in it. 1 OR (a) (b) Write a statement in Python to open a text file README.TXT so that existing content can be read from it. 1 Write a method/function ISTOUPCOUNT() in python to read contents from a text file WRITER.TXT, to count and display the occurrence of the word IS or TO or UP . 2 For example : If the content of the file is IT IS UP TO US TO TAKE CARE OF OUR SURROUNDING. IT IS NOT POSSIBLE ONLY FOR THE GOVERNMENT TO TAKE RESPONSIBILITY The method/function should display Count of IS TO and UP is 6 OR (b) Write a method/function AEDISP() in python to read lines from a text file WRITER.TXT, and display those lines, which are starting either with A or starting with E. 91 21 2 P.T.O. For example : If the content of the file is A CLEAN ENVIRONMENT IS NECESSARY FOR OUR GOOD HEALTH. WE SHOULD TAKE CARE OF OUR ENVIRONMENT. EDUCATIONAL INSTITUTIONS SHOULD TAKE THE LEAD. The method should display A CLEAN ENVIRONMENT IS NECESSARY FOR OUR GOOD HEALTH. EDUCATIONAL INSTITUTIONS SHOULD TAKE THE LEAD. (c) Considering the following definition of class STOCK, write a method/function COSTLY() in python to search and display Name and Price from a pickled file STOCK.DAT, where Price of the items are more than 1000. 3 class Stock : def __init__(self,N,P): self.Name=N self.Price=P def Show(self): print self.Name,"@",self.Price OR (c) Considering the following definition of class DOCTORS, write a method/function SPLDOCS() in python to search and display all the content from a pickled file DOCS.DAT, where Specialisation of DOCTORS is CARDIOLOGY . class DOCTORS : def __init__(self,N,S): self.Name=N self.Specialisation=S def Disp(self): print self.Name,"#",self.Specialisation 91 22 3 SECTION C [For all candidates] 5. Write SQL queries for (i) to (iv) and write outputs for SQL queries (v) to (viii), which are based on the table given below : 8 Table : TRAINS TNO TNAME START END 11096 Ahimsa Express Pune Junction Ahmedabad Junction 12015 Ajmer Shatabdi New Delhi Ajmer Junction 1651 Pune Junction Habibganj 13005 Amritsar Mail Howrah Junction Amritsar Junction 12002 Bhopal Shatabdi New Delhi Habibganj 12417 Prayag Raj Express Allahabad Junction New Delhi 14673 Shaheed Express Jaynagar Amritsar Junction 12314 Sealdah Rajdhani New Delhi Sealdah 12498 Shane Punjab Amritsar Junction New Delhi Pune Hbj Special 12451 Shram Shakti Express Kanpur Central New Delhi 12030 Swarna Shatabdi New Delhi Amritsar Junction Table : PASSENGERS PNR TNO PNAME GENDER AGE TRAVELDATE P001 13005 R N AGRAWAL MALE 45 2018-12-25 P002 12015 P TIWARY MALE 28 2018-11-10 P003 12015 S TIWARY FEMALE 22 2018-11-10 P004 12030 S K SAXENA MALE 42 2018-10-12 P005 12030 S SAXENA FEMALE 35 2018-10-12 P006 12030 P SAXENA FEMALE 12 2018-10-12 P007 13005 N S SINGH MALE 52 2018-05-09 P008 12030 J K SHARMA MALE 65 2018-05-09 P009 12030 R SHARMA FEMALE 58 2018-05-09 NOTE : All Dates are given in YYY-MM-DD format. 91 23 P.T.O. 6. (a) (b) (i) To display details of all Trains which Start from New Delhi. (ii) To display the PNR, PNAME, GENDER and AGE of all Passengers whose AGE is below 50. (iii) To display total number of MALE and FEMALE Passengers. (iv) To display details of all Passengers travelling in Trains whose TNO is 12015. (v) SELECT MAX (TRAVELDATE), MIN(TRAVELDATE) FROM PASSENGERS WHERE GENDER = 'FEMALE'; (vi) SELECT END, COUNT(*) FROM TRAINS GROUP BY END HAVING COUNT(*)>1; (vii) SELECT DISTINCT TRAVELDATE FROM PASSENGERS; (viii) SELECT TNAME, PNAME FROM TRAINS T, PASSENGERS P WHERE T.TNO = P.TNO AND AGE BETWEEN 50 AND 60; State any one Distributive Law of Boolean Algebra and verify it using truth table. 2 Draw the Logic Circuit of the following Boolean Expression : 2 A .B + A.C (c) Derive a Canonical POS expression for a Boolean function F, represented by the following truth table : X 0 0 0 0 1 1 1 1 (d) Y 0 0 1 1 0 0 1 1 Z 0 1 0 1 0 1 0 1 F(X,Y,Z) 1 0 1 0 1 1 0 0 Reduce the following Boolean Expression to its simplest form using K-Map : F(P,Q,R,S) = (0,1,2,3,5,6,7,10,14,15) 91 1 24 3 7. (a) Damodar Mohan has been informed that there had been a backdoor entry to his computer, which has provided access to his system through a malicious user/programs, allowing confidential and personal information to be subjected to theft. It happened because he clicked a link provided in one of the pop-ups from a website announcing him to be winner of prizes worth 1 Million Dollars. Which of the following has caused this out of the following ? (i) Virus (ii) Worm (iii) Trojan Horse Also, mention, what he should do to prevent this infection. (b) 2 Tarini Wadhawa is in India and she is interested in communicating with her uncle in Australia. She wants to show one of her own designed gadgets to him and also wants to demonstrate its working without physically going to Australia. Which protocol out of the following will be ideal for the same ? (c) (i) POP3 (ii) SMTP (iii) VoIP (iv) HTTP 1 Give two differences between 3G and 4G telecommunication technologies. (d) 1 Write the expanded names for the following abbreviated terms used in Networking and Communications : 91 (i) MBPS (ii) WAN (iii) CDMA (iv) WLL 25 2 P.T.O. (e) Jonathan and Jonathan Training Institute is planning to set up its centre in Amritsar with four specialised blocks for Medicine, Management, Law courses alongwith an Admission block in separate buildings. The physical distances between these blocks and the number of computers to be installed in these blocks are given below. You as a network expert have to answer the queries as raised by their board of directors as given in (i) to (iv). Shortest distances between various locations in metres : Admin Block to Management Block 60 Admin Block to Medicine Block 40 Admin Block to Law Block 60 Management Block to Medicine Block 50 Management Block to Law Block 110 Law Block to Medicine Block 40 Number of Computers installed at various locations are as follows : 91 Admin Block 150 Management Block 70 Medicine Block 20 Law Block 50 26 (i) (ii) (iii) (iv) 91 Suggest the most suitable location to install the main server of this institution to get efficient connectivity. 1 Suggest the devices to be installed in each of these buildings for connecting computers installed within the building out of the following : 1 Modem Switch Gateway Router Suggest by drawing the best cable layout for effective network connectivity of the blocks having server with all the other blocks. 1 Suggest the most suitable wired medium for efficiently connecting each computer installed in every building out of the following network cables : 1 Co-axial Cable Ethernet Cable Single Pair Telephone Cable 27 P.T.O.

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