1- What is decomposition? A- Ignoring unnecessary details in a problem B- Generalizing a problem so it can be solved more easily C- Breaking down complex problem or system into smaller more manageable sub-problems D- Prioritizing tasks within a program and determining the order in which to perform them. 2- Which of the following statement is NOT correct about flowchart? A- They never contain cycles that is you can never get to the same instruction twice by following the next instruction edge B- A parallelogram indicates a special type of instruction called an input/output instruction. C- Using diamond to direct the next instruction based on the value of some variable. D- If there is a directed edge from instruction 1 to instruction 2, then instruction 2 must be performed after instruction1. 3- Which of the following is correct about data representation and abstraction? A- Determine what data is required B- Breaking the problem into smaller sub problems C- Looking for pattern in the data D- All of the above. 4- Assuming the input list is not empty and text x and y are both initially 0. What is the output of this algorithm? A- The number of items in the list B- The average of non-negative numbers in the list C- The number of non-negative numbers in the list D- The sum of the non-negative numbers in the list. 5- Data representation and abstraction is the pinnacle of computational thinking A- True B- False. 6- What is the output of the following code?
double x=25.8;
cout<<”variable x is stored in “<<sizeof(x)<<” bytes\n”;
return 0;
A- Variable x is stored in 1 bytes B- Variable x is stored in 2 bytes C- Variable x is stored in 4 bytes D- Variable x is stored in 8 bytes. 7- What is the output of the following code?
int a=6;
int b=3;
int c=4;
double result;
c-=2
result=3*(a-2)/double(b+5+c);
cout<<result<<endl;
A- 1 B- 1.2 C- 1.6 D- 0.75. 8- What is the output of the following code?
int age=42;
int experience=5;
bool ispunished=false;
bool is promoted=(age>35 && experience>=5 && !isPunished);
cout<<isPromoted<<endl;
A- 1 B- 0 C- True D- Flase. 9- The problem of cin.get() is that it skips over whitespace A- True B- False. 10- A single line comment in C++ language source code can begin with … A- ; B- /* C- // D- -. 11- Every C++ program must contain … A- Start() B- Main() C- System() D- Program(). 12- Which header file is used to manipulate the string? A- Container B- iostream C- iomanip D- string. 13- Which operator is used for input stream? A- < B- << C- > D- >>. 14- The value 132.54 can be represented using which data type? A- Int B- Bool C- Double D- Char. 15- Which operator can be used to compose two values? A- == B- <> C- >< D- =.
