$1.$ What is the printout of the following switch statement?

char ch $=\text{'}$a$\text{'}$;

switch $($ch$)$

$\{$

case $\text{'}$a$\text{'}$:

case $\text{'}$A$\text{'}$:

cout $<<$ ch $<<$ endl; break;

case $\text{'}$b$\text{'}$:

case $\text{'}$B$\text{'}$:

cout $<<$ ch $<<$ endl; break;

case $\text{'}$c$\text{'}$:

case $\text{'}$C$\text{'}$:

cout $<<$ ch $<<$ endl; break;

case $\text{'}$d$\text{'}$:

case $\text{'}$D$\text{'}$:

cout $<<$ ch $<<$ endl;

$\}$

a$.$ ab

b$.$ a

c$.$ abcd

d$.$ aa

$2.$ What is the printout of the following code?

#include

using namespace std;

void f$($int &p$1,$ int p$2)$

$\{$

p$1++$;

p$2++$;

$\}$

int main$()$

$\{$

int x$1=1$;

int x$2=1$;

f$($x$1,$ x$2)$;

cout $<<"$x$1$ is $"<<$ x$1<<"$ x$2$ is $"<<$ x$2$;

$\}$

a$.$ x$1$ is $2$ x$2$ is $1$

b$.$ x$1$ is $2$ x$2$ is $2$

c$.$ x$1$ is $1$ x$2$ is $1$

d$.$ x$1$ is $1$ x$2$ is $2$

$3.$ The following code displays $\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$

#include

using namespace std;

void maxValue$($int value$1,$ int value$2,$ int max$)$

$\{$

if $($value$1>$ value$2)$

max $=$ value$1$;

else

max $=$ value$2$;

$\}$

int main$()$

$\{$

int max $=0$;

maxValue$(1,2,$ max$)$;

cout $<<$ "max is $"<<$ max $<<$ endl;

return $0$;

$\}$

a$.$ max is

b$.$ max is $1$

c$.$ max is $0$

d$.$ max is $2$

$4.$ What is the output of the following code?

#include

using namespace std;

void f$($double &p$)$

$\{$

p $+=2$;

$\}$

int main$()$

$\{$

double x $=1$;

double y $=1$;

f$($x$)$;

f$($y$)$;

cout $<<"$x is $"<<$ x;

cout $<<"$ y is $"<<$ y $<<$ endl;

return $0$;

$\}$

a$.$ x is $2$ y is $1$

b$.$ x is $3$ y is $3$

c$.$ x is $2$ y is $2$

d$.$ x is $1$ y is $1$

e$.$ x is $1$ y is $2$

$5.$ The following program invokes p$()$ three times. What is the printout from the last call of p$()?$

#include

using namespace std;

int j $=40$;

void p$()$

$\{$

int i $=5$;

static int j $=5$;

i$++$;

j$++$;

cout $<<"$i is $"<<$ i $<<"$ j is $"<<$ j $<<$ endl;

$\}$

int main$()$

$\{$

p$()$;

p$()$;

p$()$;

$\}$

a$.$ i is $6$ j is $8$

b$.$ i is $6$ j is $6$

c$.$ i is $6$ j is $9$

d$.$ i is $6$ j is $7$

$6.$ Given the following two arrays:

char s$1[]=\{\text{'}$a$\text{'},\text{'}$b$\text{'},\text{'}$c$\text{'}\}$;

char s$2[]=$ "abc";

Which of the following statements is correct?

a$.$ s$1$ has three characters

b$.$ s$2$ has three characters

c$.$ s$2$ has four characters

d$.$ s$1$ has four characters

$7.$ Analyze the following code:

int main$()$

$\{$

int x$[5]$;

int i;

for $($i $=0$; i $<5$; i$++)$

x$[$i$]=$ i;

cout $<<$ x$[$i$]<<""$;

return $0$;

$\}$

a$.$ The program may have a runtime error because the last statement in the main function has the out of bound index for the array.

b$.$ The program displays $4.$

c$.$ The program has a compile error because i is not defined in the last statement in the main function.

d$.$ The program displays $01234.$

e$.$ The program might displays a random number

$8.$ Show the output of the following code:

#include

using namespace std;

void increase$($int x$[],$ int size$)$

$\{$

for $($int i $=0$; i $<$ size; i$++)$

x$[$i$]++$;

$\}$

void increase$($int y$)$

$\{$

y$++$;

$\}$

int main$()$

$\{$

int x$[]=$

$\{$

$1,2,3,4,5$

$\}$;

increase$($x$,5)$;

int y$[]=$

$\{$

$1,2,3,4,5$

$\}$;

increase$($y$[0])$;

cout $<<$ x$[0]<<""<<$ y$[0]$;

$\}$

a$.22$

b$.11$

c$.12$

d$.00$

e$.21$

$9.$ Suppose you declare

char city$[7]=$ "Dallas";

How many characters are stored in city?

a$.7$

b$.5$

c$.8$

d$.6$

$10.$ What is the printout of the following code?

char s$2[7]=$ "Dallas";

char s$1[14]=$ "Dallas";

strcat$($s$1,$ s$2)$;

cout $<<$ s$1$;

a$.$ Dallas

b$.$ DD

c$.$ DallasDallas

d$.$ D

$11.$ When you pass an array to a function, the function receives $\_\_\_\_\_\_\_\_\_\_.$

a$.$ a copy of the array

b$.$ the reference of the array

c$.$ the length of the array

d$.$ a copy of the first element

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

#include

using namespace std;

int main$()$

$\{$

int matrix$[4][4]=$

$\{\{1,2,3,4\},$

$\{4,5,6,7\},$

$\{8,9,10,11\},$

$\{12,13,14,15\}\}$;

int sum $=0$;

for $($int i $=0$; i $<4$; i$++)$

cout $<<$ matrix$[$i$][1]<<""$;

return $0$;

$\}$

a$.13812$

b$.361014$

c$.4567$

d$.1234$

e$.25913$