test 2 prog-1

TCBZAT3 Structured Programming and Database ': i-! f; liTest 2

L

SET B

1. What is the syntax qrror in the following funclion definitiqn?

string area (double r){

double a;a = 3.14 * r * r;return r * r;

)

,.d.. The value that is retumed does not match the specified return type.b. The function does not retum the value a.

c. The variable a is set but never used.

d. The function does not speciff a return type.

", 2. What is incorrect in the following code snippet?

void display._box (string str){

cout (( tt-.-------tt << endl;caut << str _(( endl;cout (( 'r--------rr << endl;

]rll! rrain o{

cout << display_box ("He11o Worl-d* ) ,.

return 0;)

a. The return value from display_box is never used. ;i

b. display-box does not return a value; therefore, it cannot be used with cout <<.c.,. display_box is called with incorrect parameters.

,.d. display-box should be cailed in an assignment statement.

3. Which of the following is true about functions?a- Functions can have multiple parameters and can return multiple return values.,

,.b;" Functions can have multipie parameters and can retum one return value.c. Funetions can have one parameter and can return multiple return values.d. Functions can have only one parameter and can return only one retum value.

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TCB2 073 Structured Programming and DatabaseTest 2

6. Which of the following options,represents the output of the given code snippet?

#include <iostream> ,rr i,vold addsub(j_nt at int& sub, inte add)f

sub=a-1.. +

add=a+I;](.int main ( )

{

inta=5;intb=0;lQlg=Qi , ,

addsub (a, b, cj ; r- \ r

coutreturn 0; ]

a. -_Subtract: 4, Add : J

_,b. Subtract:4, Add:6c. Subtract = 5, Add: Jd. Subtract:6, Add: g

7. Consider the following code snippet:

int ctr: 0;int myanay[3];for (int i :0; i

-< 3; i-rt)

{rmyarray[i] - ctr;ctr: ctr + i;

)cout << myxraypl;

What is the output of the code snippet?

a. Ib.2c.3'd.0

8. Identify the correct statement fcrr defining an integer affay named numcount of fiveelements.

a. int numcount[5];" b. int numcount[]; .j{r ir)i

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TCBZAT3 Structured Programming and Database | :*il r r,Test

SET B

11. What is the output of the {ollowing code snippet?i ':.

int pow (int base, int power)t

i

int result : 1; ..

for (int i : 0; i < power,. i++){

result:result*base;i!:return result; il i - \

),,int main{

cout << pow(pow(2, 2), 2) (< endl-;return 0;

)

a. 4 jj

b.8,p: i6'd. ?z

12. What is the output of the following code snippet?

vector<int) num(4);num.push_back(4);cout << num. size O ;

/a.4b"sc. 1 lt!.,id.3

13. Considerthe following code snippet:

int mymarks [10] ;int total i .,

f or (int cnt +. I ;l{\

coutcin )> mymarkstotal : total

\'.,i . \.

r',)'t t '; ,-J

cnt (= 10; cnt++)

the marks: " iIcnt];* mymarks Icnt];

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TCB2a73 structured Frogramming and DatabaseTest 2 I--

{SET B

cin >> dqta;nunlIi] : dat.a;if (num1 [i] % 2"':- 0){evennum[i] : numl til ) ;)

1)

d" vector(int> numl;vector(int> evennum;int data;forinti-0;i<10;i++;

{cin >) c_tata;numl . push_back (data) ;if (numltil Z 2 l- 0){

evennum[i] : numl til ) ;]

)


int ctr : 0;int myarray[3] ;for(inti-0;i<3;i++;{

myarray Ii ] -= ctr,.ctr:ctr+i,.

)

cout (( myarray[2];

What is the output of the code snippet?a.0b. 1

c.2d:3

16. which of the following statements displays 12i.567 w r23.57?

a. coutb " coutc. cout (( setw(5)

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ITCB207 3 structured Programming and Database ! .lri i ,:

Test 2 iTil'd*"*"- .**."-','- I--

double dv€rag€ : 0;int scores;ifstream in file;in_file. op.n ( "Results , txt" ) ;while (in_file >> name{

if (scores )= 50) i, :lrl

'ir'r''{\total:total+score

, co1r,ra-pa9g++, =t' :'il)

ieiverage : total_ / count_pass;cout

average << endl_;return 0;

)

a. The average ofpassed students: 0b, Thc averagc ofpassed studeots: 90e . There is no output due to compilation errors..d" The average ofpassed students: g5

-i 20. Consider the following code snippet:

ofstream out_fil-e;out_f ile. open ( "Scores. txt,, ) iout file <l 'peterout_fi le

Assuming that the file "Scores.txt" does not exist, which of the following statements istrue about the above code snippet?

a" The code snippet causes an error due to the missing file.b' The code snippet causes an error because both striig and integer cannot be writtenin the same line of text.

c. The code snippet creates a new file "Scores.txt" and writes the data to it.d. The code snippet creates a new file "Scores.fxt" with no data in it.


#include (iostream)#include <fstream)int main ( )

tchar ch;int n;

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SET B

d

TCBzaT 3 structured Programming and Database i : rl r .:.

Test 2 i.",._*:*"*.."._"_ I _

a, Priority;2b. There is no output because the program does not compilec. Prioritv: 3

l,:: l:112

:; }"_Iile, open (c_str ( file_to_qpen) ) ;

,d. :-n_f ile . open (f ile to_ open. c_ str O ) ;

25. In the following oode snippet, whicli line can cause a compilation error?

f . ifstream infil_e;2. infilg_. open ( " sample . txt" ) ;:' +lg+J"This is also an i-nserted text! ! !"4. infile. c-l-ose ( ) ;

.r{ Line 3b. Line 4o. Line 1

d. Line2


vect.or(int) vectdata;

vectdata. push_back ( 90) ;

What is the size of the vector vectdata after the given code snippet is executed?

a)0b).i t

,e) 90

d)2

27. which option represents the output of the following code snippet?

int assign_priority(int priority){

return prrorrty + 2;]int main ot

int priority = assign_priority(3) ;coutreturn 0;

)

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TCBZAT3 Structured Programming and Database i ,**Test 2 !

I

sET B

fO. WhiEh of the following optiqgs rcprese-nts the qutput ofthe givsn sode snippet?

#include (iostream)void addsub(int ,q, int& sub, int& -add){ ': i -

4 r-.

-L {3

sub:a-1;add:a+Ii

a,

b.c.d.

)int main ( )

iinta:5;intb:O;int c : 0iaddsub (a, b, c) ;couL (( "SubtractreLurn 0;

]

Subtract:4, Add:5Subtract: 5, Add : 5

Subtract:4, Add:6Subtract:6, Add:6

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