Answer: Current Situation Evaluation, Improvement Planning, Improvement Implementation, Improvement Evaluation are the elements of SPI
Explanation:
SPI modle plans to achieve a desired task of software development in terms of Current Situation Evaluation, Improvement Planning, Improvement Implementation, Improvement Evaluation, with each having a specified and detailed role to play in the software development.
What error occurs in the following program? #include using namespace std; int main() { int number1, number2, sum; cout << "Enter number 1:"; cin >> number1; cout << "Enter number 2:"; cin >> number2; number1 + number2 = sum; cout << "The sum of number 1 and number 2 is " << sum; return 0; }
Answer:
1. ‘cout’ was not declared in this scope.
2. ‘cin’ was not declared in this scope.
3. lvalue required as left operand of assignment.
Explanation:
The code gives the error cout and cin was not declare. This error means, we not include the library where they define.
cout and cin is the input/output instruction and they include in the library iostream file.
the last error is lvalue required as left operand of assignment.
lvalue means the assignable value, we actually do the wrong assignment.
number1 + number2 = sum;
here, sum is is the assignment variable. so, it must be in the right side of the '=' operator.
sum = number1 + number2 ;
Now, the above is correct. the value number1 plus number2 is assign to sum.
You can use ____ arguments to initialize field values, but you can also use arguments for any other purpose.
a.
object
b.
constructor
c.
field
d.
data
Give three reasons why you think ETL functions are mostchallenging in data warehouse environment.
Final answer:
ETL functions are challenging in a data warehouse environment due to the high volumes of data, the variety and inconsistency of data formats and structures, and the imperative need to maintain data quality.
Explanation:
ETL, which stands for Extract, Transform, Load, is a critical process in a data warehouse environment. It involves the integration of data from multiple sources, transformation of that data into a format suitable for analysis, and then loading it into the data warehouse.
There are three main reasons why ETL functions can be particularly challenging in this setting:
Data Volume: The sheer amount of data that needs to be processed can be overwhelming. Handling large volumes of data requires robust systems and can be time-consuming, thus posing a significant challenge.
Data Variety: Different data sources can mean inconsistent formats, structures, and quality. Achieving consistency and accuracy in data transformation is a difficult task that demands meticulous attention to detail and sophisticated processes.
Data Quality: Ensuring the correctness, completeness, and reliability of data is paramount. This can be a daunting task due to potential errors in the data and the complexity of data validation rules.
The challenges of ETL highlight the importance of having a well-designed data warehouse architecture and a comprehensive approach to data management.
Point out any special purpose programminglanguage and also for what purpose it wasdeveloped.
Answer: Lisp which is the short for list processing is a special purpose programming language and it was developed for processing strings which is being exploited in the field of artificial intelligence.
Explanation:
Lisp is used for artificial intelligence as it can compute symbolic expressions, so a common lisp which it later came to be known as is used for development of application with artificial intelligence and is being widely used today. Lisp was actually developed in the early 1980s.
COMPARE AND DIFFERENTIATE THE SERVER AND WORKSTATION BBRIEFLY?
Answer: Servers perform actions and replies back to clients when connected in the form of the back end of application being used.
Workstations on the other hand are systems where high performance work is performed for getting a high quality of output.
Explanation:
Examples of servers are the application servers or web server. Examples of workstations include graphics editing and audio editing workstations. If we compare in term so reliability i.e there response to failures or the frequencies of failures, it is found that workstations are more reliable in comparison to servers.
What effect does the clock rate of a computer have on the execution speed of an instruction?
Answer:
Clock rate also known as clock speed is the rate at which microprocessor executes instructions.That means clock rate is directly proportional to the execution speed of an instruction.Microprocessor is the core of a computer a system it contains all the functions of a central processing unit.So if the clock rate is more execution speed of an instruction is more if clock rate is less execution speed of an instruction is less.
In the MOV instruction both operands i.e. source andthe destination cannot be
_______________ operands.
Answer:
an immediate.
Explanation:
It is because of the instruction encoding and decoding.Intel which make these instructions decided not include instructions which provide no real advantage. MOV segment register is one of them because segment register need not to be changed very often.This saves the space in instruction encoding.
Answer: In the MOV instruction both operands i.e., source and the destination cannot be immediate operands.
Explanation:
The destination operand must be in data alterable mode and it cannot be an an immediate operand, or a segment register. Basically, the mov operation are used to copy the values stored in one registers to another registers. It can be used to load a small integer in the register.
What is a traffic controller?what are its functions?
Answer:
A traffic controller is basically a system design to regulate traffic in a controlled manner with a set of traffic rules to follow so as to ensure public safety .
The main functions of a traffic light controller are listed below:
To direct and regulate vehicular and pedestrian trafficTo ensure safety of construction workers, emergency response team and public in general in order to avoid accidentsThese also uses CCTV and other monitoring system to manage flow of traffic and suggestion concerned with traffic congestion. These are provided by local or state authorities.To ensure smooth traffic flow in order to save time and chaos.What is the analysis and complexity of a shell sortalgorithms?
Answer: The shell sort is based on insertion sort. Here the list of elements are divided into smaller sub list which are sorted based on insertion sort.
Its best case time complexity is O(n* logn) and worst case is O(n* log^2 n)
Explanation:
Shell sort is an inplace sorting here we begin by dividing the list into sublist and sorting the list with insertion sort. We create interval for dividing the list into sub list until we reach the smallest interval of 1.
The best case is O(n* logn).
Write a programe to add two numbers using function with return type"void".
Answer:
#include<iostream>
using namespace std;
//create the function which add two number
void addTwoNumber(int num_1,int num_2)
{
int result = num_1 + num_2; //adding
cout<<"The output is:"<<result<<endl; //display on the screen
}
//main function
int main(){
//calling the function
addTwoNumber(3,6);
return 0;
}
Explanation:
First, include the library iostream for using the input/output instructions.
then, create the function which adds two numbers. Its return type is void, it means the function return nothing and the function takes two integer parameters.
then, use the addition operation '+' in the programming to add the numbers and store the result in the variable and display the result.
create the main function for testing the function.
call the function with two arguments 3 and 6.
then, the program copies the argument value into the define function parameters and then the program start executing the function.
In a doubly linked list, every nodecontains the address of the next node and the previousnode except for the ____ node.
a. middle
b. last
c. first
d. second to last
Answer:The answer is (c).first.
Explanation:
In doubly linked list each node possesses the address of next node(except last node) because there is no node present after the last node .
and the address of previous node(except first node) because there is no node present before the first node.
So the conclusion is that the first node does not contain the address of previous node and the last node does not contain the address of the next node.
What is the output of the C++ codeabove?
a.
0 1 2 3 4
c.
0 5 10 15 20
b.
0 5 10 15
d.
5 10 15 20
int list [5] = {0, 5, 10, 15, 20};
int j;
for (j = 0; j < 5; j++)
cout << list [j] << " ";
cout << endl;
Answer:
c
Explanation:
xxhdudhshshsudjdjd
Describe how layers in the ISO reference model correspond tolayers in the TCP/IP reference model.
Answer and explanation : The TCP/IP means TRANSMISSION CONTROL PROTOCOL AND INTERNET PROTOCOL It governs all the communication which are performed over network it has a set of protocol. It defines how different types of conversation are performed without any fault through a network
THERE ARE 5 TYPES OF LAYER IN TCP/IP MODEL
APPLICATION LAYER: It is present at upper level it is used for high level products for the network communicationTRANSPORT LAYER: This layer is used for transfering the message from one end to other endNETWORK LAYER : Routers are present in network layer which are are responsible for data transmission DATALINK LAYER : it is used when there is any problem in physical layer for correcting this datalink are usedPHYSICAL LAYER: Physical; layer are responsible for codding purpose which we used in communication processWrite an If - Then statement that sets the variable hours to 10 when the flag variable minimum is set.
An If-Then statement that sets the variable hours to 10 when the flag variable minimum is set:
Using an explicit comparison:
if minimum:
hours = 10
This statement simply checks if minimum is True. If it is, then it assigns 10 to the hours variable.
Digits Sum Write a function main( that reads a positive integer, calls the function digits which finds the digits sum of that integer. The function main( prints the sum. Sample input/output: Enter a positive integer: 20010 The digits sum of 20019 is 3
Answer:
#include<iostream>
using namespace std;
int digits(int number){
int sum=0;
while(number != 0){
int rem = number % 10;
sum = sum + rem;
number = number/10;
}
return sum;
}
int main(){
int number;
cout<<"Enter the integer: ";
cin>>number;
int result = digits(number);
cout<<"The sum of digits is: "<<result<<endl;
}
Explanation:
Include the library iostream for use of input/output.
Then, create the function digits with return type int.
Take a while loop and put a condition number not equal to zero.
the while loop executes the until the condition is not false.
In the while loop, take the remainder of the number and store in the rem variable.
after that, the store in the sum then reduces the number by dividing 10.
for example:
the number is 123.
rem = 123%10 it gives the value 3.
sum = 0+3=3
number = 123/10 it equal to 12
then,
rem = 12%10 it gives the value 2.
sum = 3+2=5
number = 12/10 is equal to 1
the same process executes until the number becomes zero and then the while loop terminates and the sum value returns to the main function.
create the main function and take the value from the user and call the function with the argument number.
and finally, print the result.
Why is it important to power on the computer before you begin?
We power on the computer before we begin because a computer has a special programme in it called operating system which needs to be started for us to use the computer
Answer: so i can turn on and you could do what ever u want
Explanation:
In a well-designed detail report, a field called a(n) ____ field controls the output.
Answer
break
indexed
dominant
control
Answer:
Control
Explanation:
Windows XPProfessional and Windows Vista Both have same devicedrivers.
True
False
Answer: False
Explanation:
Windows XP Professional and Windows Vista, both does not have same device drivers because they both have different structural modules. Both windows XP and windows Vista are different in terms of their security architecture, mobile computing and networking technologies.
As, windows XP has suffered from security problems or issues with the performance. Vista has received issue with product activation and performance. Another common problem of Vista is that integration of new form of DRM in the operating system and security technology.
Write a C++ program that computes the area and perimeter of aspecified shape
(either rectangle,triangle, or circle). The user should be prompted for therelevant
input (type of shape anddata associated with that shape). See the examplebelow.
Enter the shape type (1 forrectangle, 2 for triangle, 3 for circle)
1
Enter the width
2
Enter the height
3
The perimeter of the rectangleis 10 and the area is 6.
C++ program that computes the area and perimeter of a specified shape
#include <iostream>
#include <cmath>
using namespace std;
void rectangle() //Defining function for rectangle
{ int h,w;
cout << "Enter height: ";
//taking input
cin >> h;
cout << "Enter width: ";
cin >> w;
cout << "The perimeter of the rectangle is " <<2*h+ 2*w << " and the area is " <<h*w << endl; //printing output
}
void triangle() //Defining function for triangle
{ int s1,s2,s3,h,w;
cout << "Side 1: "; //Taking input
cin >> s1;
cout << "Side 2: ";
cin >> s2;
cout << "Side 3: ";
cin >> s3;
cout << "Enter the height: ";
cin >> h;
cout << "Enter the base length: ";
cin >> w;
cout << "The perimeter of the triangle is " <<s1+s2+s3 << " and the area is " <<(.5)*w*h << endl; //printing output
}
void circle()//Defining Function for the circle
{
const double p=3.14;
int w;
cout << "Enter the radius: "; //Taking input
cin >> w;
cout << "The perimeter of the circle is " << p*2*w << " and the area is " << p*w*w<< endl; //printing output
}
int main() //driver function
{
int s;
cout << "Enter the shape (1 for rectangle,2 for triangle, 3 for circle): ";
//Asking user for the shape
cin >> s;
switch(s) //checking which shape it chooses
{
case 1:
rectangle(); //If user type 1 ,then calling rectangle function
break;
case 2:
triangle(); //If user type 2 ,then calling triangle function
break;
case 3:
circle(); //If user type 3,then calling circle function
break;
default:
cout <<"Enter valid choice for shape"; //If user type other than 1,2,3
}
return 0;
}
Output
Enter the shape (1 for rectangle,2 for triangle, 3 for circle): 1
Enter height:2
Enter width: 3
The perimeter of the rectangle is 10 and the area is 6
What is meant when it is said that an exception is thrown?
Answer:
It is an error in the program that warns the users that something is wrong in the data they have entered
Explanation:
Null pointer exception, ArrayIndexOutOfBounds and arithmetic exception are some of the exception which can be thrown in a code segment. example if we use divide by zero then the exception to be used is arithmetic exception. Similarly we can also define our own conditions for throwing an exception using the keyword throw. Example throw exception class("error message"),
How many times will the following loop repeat?
i = 2; while i <= 16; i = i+2; end
A. 0 times
B. 2 times
C. 8 times
D. 16 times
Answer:
8 times
Explanation:
The while is execute again and again until the condition is TRUE.
In the question:
the value of i=2, when program enter the loop it check the condition when
2 <= 16, condition TRUE. it update the value i = 4.
Again the loop check condition, 4 <= 16, condition TRUE, i become 6 and so on...
4,6,8,10,12,14,16
when i = 16 loop condition is also TRUE. 16 <= 16. So, it again run the loop and i become 18.
then, the loop condition false and it exit the loop.
so, i run until 18
4,6,8,10,12,14,16,18
Therefore, the answer is 8 times.
Given the following code, what is the final value of i at the end of the program? int i; for(i=0; i<=4;i++) { cout << i << endl; }
Question 5 pow(2,3) is the same as pow(3,2). Question 14 options: True False
Question 6 The functions pow(), sqrt(), and fabs() are found in which include file?
cstdlib
cmath
iostream
regular
Answer:
The final value of i will be 5 at the end of the program.
i=0, i≤4, prints 0.
i=1, i≤4, prints 1.
i=2, i≤4, prints 2.
i=3, i≤4, prints 3.
i=4, i ≤ 4, prints 4.
i=5, i is not ≤ 4, stops here.
Q-5:
pow(2,3) = 8 and pow(3,2)=9, so they are not same.
Q-6:
The functions pow(), sqrt(), and fabs() are found in which cmath
Explanation:
Final answer:
The final value of i is 5. pow(2,3) is not the same as pow(3,2). The functions pow(), sqrt(), and fabs() are located in the cmath include file.
Explanation:
Final Value of Variable i
The final value of i at the end of the loop in the C++ code is 5. This occurs because the loop continues to increment i until the condition i <= 4 is no longer true. After the last execution with i equal to 4, the loop increments i to 5 and then checks the condition, which fails, thus exiting the loop and leaving i with a value of 5.
Power Function Comparison
pow(2,3) is not the same as pow(3,2). The pow function returns the value of one number raised to the power of another. Thus, pow(2,3) calculates 2 to the power of 3 (2*2*2), which equals 8, while pow(3,2) calculates 3 to the power of 2 (3*3), which equals 9.
Function Include Files
The functions pow(), sqrt(), and fabs() are all found in the cmath include file of C++.
This is a form of load balancing where larger workloads are issued to IT resources with higher processing capacities
a. Pay-Per-Use Monitor
b. Asymmetric Distribution
c. SLA Monitor
d. Workload Prioritization
Answer:
The correct answer is b. Asymmetric Distribution.
Explanation:
Asymmetric Distribution has to do with those larger workloads which are issued to IT resources with higher processing capacities. The Pay-Per-Use Monitor is where the billing system relies on. The Workload Prioritization is where workloads are prioritized according to their level. And the SLA monitor is a contract between a service provider and the customer. So, the most correct answer is b.Asymmetric Distribution.
)What are the approaches used to design a Control unit? Brieflycompare them.
Answer: Control unit is the main unit of CPU which is responsible for handling of the processor's control action. There are two ways to design a control unit :-
Hardwired control unitMicro-programmed control unitExplanation: Comparison of the two control units are as follows:-
Hardwired control is comparatively rapid than the micro-programmed control .Hardwired control is circuit type technology and micro-programmed control is software type technology.Hardwired control is based on the RISC architecture and micro-programmed is based on CISC architecture.Please answer the question about the economic idea of technology. Which of the statements is true of technology?
a.Technology refers to the processes a firm uses in production.
b.Technology refers most directly to the methods firm managers use to organize overseas operations.
c.Technology is the use of computers and software to create economic efficiency.
d.The economic definition of technology is unrelated to the management skills or training that firm employees may have.
Answer:
C - Technology is the use of computers and software to create economic efficiency
Explanation:
The economic idea of technology refers to everything that can assist in producing goods more efficiently (faster/cheaper/higher quality). Economists refer to technology as an innovative method of executing things, rather than referring to physical hardware.
Answer:
The Correct Answer is C
Explanation:
Technology, for statisticians, is anything that assists us manufacture things quicker, more reliable or more affordable. When you think of technology there's a great opportunity you think of material things like large devices or high-speed computers. But when statisticians debate about technology, they're imagining more broadly about distinct methods of making things.
Appreciate with dumbsup and need short discription about what is java programming
Answer:
java programming language is a programming language which is based on the concepts of object oriented programming.
Explanation:
Java program uses the concept of classes and enable to use the classes by making objects of them. Java program is similar in concepts to that of C++. java program can run on a single system or can also be shared across a network. It is considered to be safe and it is interpreted by JVM (Java virtual machine). Some of its characteristics are it exhibits polymorphism, inheritance and overloading and overriding functions.
Java is used for developing many web based application, software's and games. These program are easy to write, debug and compile with perfect GUIs for which it is considered to be user friendly.
In the second form of ____, the binary operation op is applied to the elements in the range.
A.
adjacent_find
B.
adjacent_difference
C.
adjacent_member
True / False
In general,
embedded system processors are more powerful than general-purpose processors.
Answer: True
Explanation:
Embedded system processor are more powerful than general purpose processor because the embedded processors are designed to work in a particular machine for which they get the right amount of RAM and hardware however general purpose processors are to work in every machine which makes them little slow in some machine as they do not get the proper hardware and RAM and have to cope with much more demanding situations.
Kindly guide me How can I get the easy examples and tutorialsregarding:
a) Finite Automata
b) Transition Graph
c) Generalized Transition Graph
d) Kleen's Theorem
Write a C++ code that will read a line of text convert it to all lower case and print it in the reverse order. Assume the maximum length of the text is 80 characters. Example input/output is shown below:
Input:
Hello sir
Output:
ris olleh
C++ program for converting it into lower case and printing in reverse order
#include <iostream>
#include <string>
#include <cctype>
using namespace std;
//driver function
int main()
{
// Declaring two string Variables
//strin to store Input string
//low_string to store the string in Lower Case
string strin, low_string;
int i=0;
cout<<"Input string: "<<endl;
/*getline()method is used to store the characters from Input stream to strin string */
getline(cin,strin);
//size()method returns the length of the string.
int length=strin.size();
//tolower() method changes the case of a single character at a time.
// loop is used to convert the entire Input string to lowercase.
while (strin[i])
{
char c=strin[i];
low_string[i]=tolower(c);
i++;
}
//Checking the length of characters is less than 80
if(length<80)
{
cout<<"Output string: "<<endl;
//Printing the Input string in reverse order, character by character.
for(int i=length-1;i>=0;i--)
{
cout<<low_string[i];
}
cout<<endl;
}
else
{
cout<<"string Length Exceeds 80(Max character Limit)"<<endl;
}
return 0;
}
Output-
Input string:
Hello sir
Output string:
ris olleh