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Aptitude 

All these are from GMAT'96 edition(galgotia publcations) :

1.if length of a rectangle is incr by 20% and width is decr by 20% then area:
(page 44)
ANS:decreases by 4%.

2.the lead in pencil is 5inch long.after pieces of 1/8.1-3/4,1-1/12inches 
are broken how long is the lead left in the pencil:(page44) 
ANS:2-1/24inch.

3.how many two digit numbers satisfy the property:the last digit of the sqr 
of the two digit number is 8:(page45).
ANS:none.

4.city B is 8miles east of city A.city C is 6 miles north of city B. and so on.
(page 45): 
ANS:30miles .

5.if 50 apprentices can finish a job in 4 hours and 30 journey men can finish 
the same job in 4-1/2 hrs and so on.(page 46).
ANS:29/180.

6.there are 50 employees in the office of ABC company.and so on.(page 52.)
ANS:10.

7. what is the max no of points of intersection of two circles of unequal radii. (page 55).
ANS:2.

8.if the area of sqare increases by 69% then side of the sqr incr by:
ANS:13%

9.if x,y,z are chosen frm -3,1/2,2 what is the largest value of (x/y)*z*z 
(page 305.)
ANS:36.

10.a club hs 8 male 8 female members.(page 307):
ANS:3136.

11.sum of 5 consecutive numbers is 35. how many of the numers are prime: 
(page 368).
ANS:2.

12.if the product of three consecutive int is 210,then sum of the two smaller 
ints is:(page 386).
ANS:5+6=11.

13.there are 27 coins in which 0ne is heavier than rest(all equal weight). 
how many measurements are needed to isolate that odd one.
ANS:3.


Technical

Electronics

1.A logic ckt is given and asked to identify the configuration.
ANS: XOR.

2.multi vibrator with nor gates is given 
ANS: astable multi sqr wave opt.

3.4 stage ripple counter with delay(f/f) 10msec. How much time it takes for 
a state to change. 
ANS:4*10=40.

4.impedence of a parallell resonant circiut at resonance:
ANS:R.

5.serial to parellel conversion is done by :
ANS:shift register.

5.if the address bus is 20bits.then the memory space is :
ANS:1MB.

6.filtering can be done with:
i)capacitor,ii)inductor,iii)both,iv)none.
ANS:both.

7.two progs are given. one satrts counting frm 0 to MAX and the other  
stars frm MAX to 0. which one executes fast.
ANS:may be Max to 0.Think of it. 

8.problem using three registers.
ANS: register A is multiplied by 11.

9.the config that is worst effected by low CMMR
ANS:Non inverting amplifier.


Networks:

1.which is not used for error correction : 
ANS :bit stuffing.

2.which of the following is not fctn of datalink layer: 
ANS : Encryption.

3.voltage levels of rs232c:
ANS :+12,-12.

4.which of the following is not used for client/server.
i)RPC,ii)TCP/IP,iii)MESSAGEQs,iv)None 
ANS: none.


Database

1. which of the following is true.
ANS:the primary key in DataBAse design is very important.
2. ANS : SQL is a Non procedural query langauge.
3. ANS : Time for insertion is more than time for modification.

Compiler/algo/ds

1.Data structure used to impliment a menu:
ANS :doubly linked circular linked list.
2. some regular expression is given:WaW'.
ANS : may be it is context free grammar.


OS

1.the feature of real time os is: 
ANS:fast context swithing.

2.ANS:os impliments protection with the help of hardware(like virtual 
addressing in 386/286 etc).


C programming

some small c progs are given asked to tell the function/errors etc.
one of the qstn(last in the paper) is an invalid statement.
finish of all these very fast and think about those others. they are 
simple only.

1.int a=2,b=3,c=4;
printf("a=%d,b=%d\n",a,b,c);
ANS:2,3

2.for(i=1;i<10;++i,printf("%d",i));+-
ANS:compiling error.

3.whole logic is given in func s but they are working properly.
the main logic is :

char *string;

string=malloc(5*sizeof(char));
strcpy(string,"hello");
printf("%s",string); /* func to print */

ANS:hello and some extra characters until uccerence of \0 .

4. in a system integer takes 3bytes and char takes 1byte .......
struct smthing{
int a;
char b[4];
};


ANS:sizeof struct smthing is 7 bytes.