True
Explanation:Indentation makes your code easier to read and debug by grouping related code.
Also, in some programming languages such as Python, indentation is necessary. This is opposed to other programming languages such as JavaScript, where there are semicolons and other characters that end and separate lines of code.
Convert the following Base 2 (binary) numbers to base 10(decimal):
11101
1010101
Answer:
11101=29 in base 10.
1010101=85 in base 10.
Explanation:
To convert a binary or Base 2 number into a decimal or base 10 we have multiply respective 1 and 0's to respective powers of 2 and then add them which gives us the decimal number.The LSB(Least Significant Bit) or right most digit in binary number will be multiplied by 2⁰ and increment the power by 1 as we move to the left side or to the MSB(Most Significant Bit).
(11101)₂=1x16+1x8+1x4+0x2+1x1 =16+8+4+1=(29)₁₀.
(1010101)₂=1x64+0x32+1x16+0x8+1x4+0x2+1x1=64+16+4+1=(85₁₀) .
Describe the attacks in wireless networks that are more serious com pared to wired network
Answer:
Both types of attacks can be devastating.
Explanation:
Attacks Wireless Networks are sometimes considered more serious because they can be attacked from remote locations. One of the more serious attacks would be against commercial airplanes. A wireless hack and system shutdown of a commercial aircraft can be catastrophic, and can all be done wireless. While a Wired Network attack can cause catastrophic events they need to be attacked from within the location of the network which is usually guarded by security personnel as well as system firewalls.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
What process makes one group a member of another group? nesting cloning copying grouping
Answer: Nesting
Explanation: The process of making one group the part of another group is defines as nesting. it is mostly done in the programming . This process helps in reduction of the program by nesting the functions. Nesting is done in computer field in applications as well to make one document the part of other document .Therefore, nesting is the correct option .
The scope of a variable declared in a for loop's initialization expression always extends beyond the body of the loop
True False
Answer:
False
Explanation:
for loop is used to run the statement again and again until the condition put inside the for loop is false.
syntax:
for(initialization;condition;increment/decrement)
{
statement;
}
the initialization scope is valid only within the curly braces of the for loop. it is not valid outside the body of the for loop.
because initialization is the part of the for loop.
In Java, which of these classes implement the LayoutManagerinterface?
?? RowLayout
?? ColumnLayout
?? GridBagLayout
?? FlowLayoutManager
Answer:
GridBagLayout,FlowLayoutManager
Explanation:
LayoutManager interface is the interface used for laying out containers.Components like Button,text boxes are placed by Layout Manager,it is used to determine size and position of components in a container.
We can implement this interface via many classes like -
SpringLayout, SynthScrollBarUI, ViewportLayout , FlowLayout, GridBagLayout, GridLayout etc.
GridBagLayout-This layout arranges the components in vertical,horizontal or in baseline irrespective of their size.The orientation of the GridBagLayout depends on the container's ComponentOrientation property.
GridBagLayout is associated with an instance of GridBagConstraints which manages each component.
FlowLayoutManager-This layout arranges the components in a directional flow. The alignment of line is determined by componentOrientation.
ComponentOrientation .LEFT_TO_RIGHT
ComponentOrientation.RIGHT_TO_LEFT
Which of the following variable names is not valid? 1price 1 price price 1 price1
Answer:
1price 1 price price 1
Explanation:
In the c programming, the rule for valid variable name.
1. Variable name cannot start with numeric value like 1,2,3..
2. Space and special character other than underscore '_' are not allowed.
3. After the first letter, numeric values can be used.
Let discuss the options:
Option A: 1price
it start with number which is not allowed.
Option B: 1 price
it start with number and also contain the space which is not allowed.
Option C: price 1
it contain the space which is not allowed.
Option D: price1
it is the valid variable name, start with letter and their is no space.
Therefore, option A, B and C are correct option.
The good example of pivoting is changing thedimensions along the axis.? True? False
Answer:
False
Explanation:
The good example of pivoting is NOT changing the dimensions along the axis.
For most general purpose processors, how does the operating system handle the situation when the processor is idle?
Answer:
The operating system handle this system idle situation by using the System Idle Process.
Explanation:
This system idle process constantly keeps the processor occupied means that the processor will not freeze when no processes are in work.When a process is using 12% of the CPU then 88% of the CPU is used by the system idle process.You can see this in the task manager of your windows.
ith reference to McCall's quality modle , what are the three important aspects of a software product ?
Answer: According to McCall's quality model , the three important factors for the aspect of a software product are:-
Product RevisionProduct Operation Product TransitionExplanation:
Product Revision:-these are the factors which includes the maintenance, flexibility and testing of a software .
Product Operation:-these include the factors like checking the correctness, usability, reliability, efficiency and Integrity of software to maintain its quality
Product Transition:- these are the qualities that define the portability, interoperability and whether the software can be reused or not .
.When a system is designed such that there is one-to-manydependency between objdects with automatic notification ofdependents when any object changes, the implied patterns iscalled:
A.observer B.mediator C.interpreter D.iterator
Answer: A) observer
Explanation:
When the system are designed in such a way that there is one to many dependency between the object, when the object changed with the automatic notice of the dependent , and the implied pattern are known as observer. As, the pattern observer are defined a one to many object dependency so, when the state of one object changed, then the dependent update automatically. Observable object are get notified for the changes when a class are get implemented observer interface.
. Which of thefollowing is not a characteristic of marketing plan?
a. It shouldprovide a strategy to accomplish the company mission
b. It shouldprovide for the use of existing resources
c. It should besimple and short
d. It should berigid
Answer: d)It should be rigid
Explanation: Marketing plan is the basic report that gives the outline about the strategy of marketing in the coming time. The marketing strategy usually include the facts such as simple plan, using resources accordingly and in sufficient way, some future goals, metrics with high level,etc .But the plan should not be rigid, it will make the marketing plan restricted to certain limit which is not included in good marketing strategy.
True / False
Generally, a multiply instruction takes more clock cycles than an add instruction.
Answer: True
Explanation:
A multiplication takes more clock cycle than an add instruction as, multiplication has more complicated circuit as compared to addition instruction. Multiplication instruction may takes more duration depends on its processor or architecture. Sometimes, it is difficult and take longer time to calculate the multiplication of decimal integer and numbers.
____ is a set of elements of the same type in which the elements are added at one end.
A.
hash table
B.
tree
C.
queue
Answer:
queue
Explanation:
queue is the data structure which perform the operation in specific order.
It follow the order first in first out (FIFO). The element is insert at the rear end and deleted from the front.
So, the element is added only the one end.
Tree is a hierarchical structure, their is not one end which used to insert the element.
Hash table also not having single end for insert the element.
Therefore, the answer is queue.
Write a calculator program that keep reading operations and double numbers from user, and print the result based on the chosen operation using while loop. The loop must stop if the user enters Q letter.
NOTE: no need to write two classes.
Typical run of the program:
Enter an operation(+,-,*,/), Q to quit: +
Enter your first number: 6
Enter your second number: 5
Result= 11.0
Enter an operation(+,-,*,/), Q to quit: *
Enter your first number: 5
Enter your second number: 5
Result= 25.0
Enter an operation(+,-,*,/), Q to quit: q
You calculator has been ended!
Answer:
#include <iostream>
using namespace std;
int main()
{
char opt;
double num1,num2;
cout<<"Enter an operation(+,-,*,/), Q to quit: ";
cin>>opt;
while(opt != 'Q'){
cout<<"\nEnter your first number: ";
cin>>num1;
cout<<"\nEnter your second number: ";
cin>>num2;
if(opt == '+'){
cout<<"Result = "<<num1+num2<<endl;
}else if(opt == '-'){
cout<<"Result = "<<num1-num2<<endl;
}else if(opt == '*'){
cout<<"Result = "<<num1*num2<<endl;
}else if(opt == '/'){
cout<<"Result = "<<num1/num2<<endl;
}
cout<<"Enter an operation(+,-,*,/), Q to quit: ";
cin>>opt;
}
return 0;
}
Explanation:
First, include the library iostream, it allows to use the input/output instruction.
Create the main function and declare the variables.
Then print the message on the screen using cout instruction.
cin instruction is used to store the value into the variable.
then, take a while and check the condition if the value enters by the user is 'Q' or not. if true then enter the while otherwise exit.
after that, store the number enter by the user in the variables and then take the if-else statement for matching the operation enter by the user if match true then do the match operation.
This process continues until the user enters the value 'Q'.
if the user enters the 'Q' then condition false and exit the program.
T F The exit function can only be called from main .
Answer:
FALSE
Explanation:
The exit function is used to terminate or halt the process.
Syntax-
void exit(int status)
Exit function (exit()) can be used in any function not only main() and it will terminate your whole process.
Example- C Program
#include<stdio.h>
#include <stdlib.h>
// function declaration
float exitexample ( float x );
// Driver program
int main( )
{
float a, b ;
printf ( "\nEnter some number for finding square \n");
scanf ( "%f", &a ) ;
// function call
b = exitexample ( a ) ;
printf ( "\nSquare of the given number %f is %f",a,b );
/*This will not printed as exit function is in exitexample() function*/
}
float exitexample ( float x ) // function definition
{
exit(0); //exit function
float p ;
p = x * x ;
return ( p ) ;
}
________splitting places a group of columns in onetable and the remaining columns in anothertable.1. Horizontal2. Vertical3. Both 1 and 2
Answer:
2. Vertical
Explanation:
Vertical splitting places a group of columns in one table and the remaining columns in another table.
When the average amplitude is non zero then the problemarises is ______________.
Answer:
Average amplitude is the average magnitude in a wave cycle of all instant values. Average amplitude is the ratio of the sum of all instantaneous values to the number of instantaneous values considered in cycle.
When the average amplitude is non zero then the problem arises is it make it ineffective to carry a signal over the transmission medium.
An issue arises when there is a long 0s or 1s sequence and the voltage level is maintained for a long time at the same value. This creates a receiving end problem because the clock synchronization is now lost due to the lack of any transitions.
List the steps that the insertion sort algorithm would make in sorting the values 4, 1, 3, 2.
Answer:
The Insertion Algorithm will loop through the values given and move certain values back until the final array is sorted.
Explanation:
Insertion Algorithms start with the second value in a set.
Initial set: 4, 1, 3, 2
Step 1: 1 is lower than 4 so it is moved behind 4 and 4-2 are pushed forward by one ....... 1, 4, 3, 2
Step 2: 3 is lower than 4 but higher than 1 so it is moved behind 4 and 4 and 2 are pushed forward by one ..... 1, 3, 4, 2
Step 3: 2 is lower than 4 and lower than 3 but higher than 1 so it is moved behind 3, and 3-4 are pushed forward by one ...... 1, 2, 3, 4
The Set is now Sorted and the Insertion Algorithm is finished.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
BorderLayout is the default layout manager for a JFrame’scontent pane
?? True
?? False
Answer:
True
Explanation:
BorderLayout is the default JFrame, JInternalFrame, and JApplet content panel layout manager.Border layout are used to arrange components(such as text fields, buttons, labels etc) in a particular manner.
Example
public class BorderLayout
extends Object
implements LayoutManager2, Serializable
These classes are used for making effective GUI(graphical user interface) in java.
Example for JFrame's content pane-
JButton button = new JButton("Button click (PAGE_START)");
/*making object JButton with a button name 'click*/
pane.add(button, BorderLayout.PAGE_START);
/*Adding Border layout in button*/
PAGE_START is BorderLayout constant,there are four more which defines the area-
PAGE_END
LINE_START
LINE_END
CENTER
Suppose a computer design has -bit integers. What happens when overflow occurs?
Answer:
When a computer designed has a bit-integers so the overflow occurred when magnitude of number exceeding and the results of the arithmetic operation are exceeding the maximum size of the type of an integer like the addition and the multiplication, which are used to stored in it. The two similar signed number sum are varying with the exceeding range of bit then, it increases the possibility of the overflow.
Is there any advantage of usingbranch predictor in a pipleline. Explain with example.
Answer:
Yes, there are advantages of using branch predictor in a pipeline.
Explanation:
Yes, there is advantage of using branch predictor in pipelining. T know this, lets first understand the Branching. Branches are the places in the instructions where multiple paths can be possible and one of the path (in branch) will be followed. This can be understood as conditional executions like If - Else conditions, Switch cases etc. Without branch prediction, the processor becomes slow, processing less number of instructions and taking more clock cycles. The processor has to stall without executing any instructions and wasting lot of clock cycles. Without branch predictor the instructions that have to be next executed doesn't know. Branch prediction increases Instruction Level Parallelism. Examples are If - Else Conditions and Switch cases.
Does RISC provide better performance today than CISC?
Answer: Yes, RISC has better performance than CISC at present .
Explanation: Following are the reasons for the better performance of the RISC as compared to CISC:-
RISC(Reduced instruction set computer) processors has simple instructions which take about one clock cycle whereas CSIC (complex instruction set computer) processor has complex instructions which may take multiple clocks to execute. Decoding of instruction in RISC is simple as compared to CISC .Execution time is less in RISC whereas CISC takes more time to executeRISC has reduced instruction that is the instructions are less but in CISC , the instruction set is complex which make the operation more complexNo requirement of external memory in RISC for calculation but CISC requires external memory for calculation.What is the value of "d" after this line of code has been executed? double d = Math.round ( 2.5 + Math.random() ); A. 2 B. 3 C. 4 D. 2.5
Answer:
3
Explanation:
Math.random() is the function which gives the value greater than or equal to 0.0 and less than 1.0. it gives the double type value.
Math.round is also the function which gives the closest long to the argument.
for example:
Math.round(2.5) it gives 3.
so, Math.random() generate number 0.000 to 0.999
maximum possible value inside the Math.round(2.5+0.999) which is equal to
Math.round(3.499) which gives 3 not 4 when it 3.5 then it gives 4.
therefore, the result is 3
What is the purpose of TCP?
Answer:
The purpose of TCP / IP is to provide computers with a method to transmit data to each other. TCP/ IP provides the means for application to send data between computers and for networks to deliver that data to applications on others computers.
Explanation:
The internet control protocol (TCP/ IP, transmission control IP / internet protocol) is the set of protocols used to transport information on the internet and in most private networks. The TCP/IP name leaves two more important protocols of the transport layers (TCP) and the network layer (IP).
Each internet application depends on the communication of data between two or more processes. The most common is that they are two processes, and that their roles are well defined as client and server. The applications under this model ''client-server'', will issue a service request on the client side, and the server will elaborate a response and return it to the client.
To communicate these two processes it is necessary that the data that configure the requirement made by the client, and those that configure the response, produced by the server, can circulate through the network in both directions. The TCP/IP protocol suite resolves this need. For this, IP performs communication between devices, hosts, or nodes of the network, creating virtual paths between them through its fundamental function, which is routing.
1) Only analog signals can be used to transmit information.
a) True b) False
Answer: False
Explanation:
Digital signal is used for transmission of information over a dedicated line wheres for using analog signal for transmission of information it is first converted to digital to be able to transfer it across long distances./
A(n) ___________________ process is initiated by individuals who are subjected to forensic techniques with the intention of hiding or obfuscating items or objects with evidentiary value. a. digital forensics b. discovery c. eDiscovery d. anti-forensics
In what conditions we use forward and backwardchaining in prolog please specify?
Answer:
Explanation:
Forward Chaining:
As the name suggests, Forward Chaining is the method of arriving at the goal with the available data and the data that is produced from the available data. With the help of the available data more data is produced by using inference rules. With the combination of available data and the produced data, a goal will be reached.
Backward Chaining:
As the name suggests, Backward Chaining is the method of finding the reasons behind the goal or hypothesis. It is used when the goal is present and checking if the available data supports / satisfies the goal.
What are search tries? Why are they more efficient than usualsearching
algorithms?
Answer:
Trie is a tree based data structure where the keys are strings.
Search trees are a data structures in Computer Science in which they are based on trees.
Explanation:
Search trees are tree based data structures which are used to search elements in the tree as the names suggests (search tree). However, for a tree to perform as search tree the key it has to follow specific conditions. They are , the the key of any node has to be less than the all the keys present in the right sub trees and greater than all the keys present in the left subtree.
Describe the general process of creating a DataFlow Diagram (DFD)
Answer:
General process of creating a data flow diagram:
Data flow diagram are used to represents the flow of data graphically and it is divided into physical and logical parameters. For creating the data flow diagram the steps involved are:
Select the data and name the DFD. In DFD add the entity for start the process and add that process in data flow diagram. Add a data store and continuous adding that data into DFD.Now, adding the data flow in DFD and name the data.
State whether true or false.
i) init( ) of servlet is called after a client request comes in
ii) Servlets are ultimately converted into JSP
A) i-false, ii-false
B) i-false, ii-true
C) i-true, ii-false
D) i-true, ii-true
Answer:
A) i-false, ii-false
Explanation:
i)
init() method is only called once at the time of creation of servlet,it is not called for the client request.It is a one time initialization.The init() method is used creating and loading data that will be used throughout the life of the servlet.
Definition Init() method
public void init() throws ServletException {
// Initialization code...
}
ii)
Servlet is a java class that contains Java Api specification.Every Jsp is ultimately converted to Servlet, as in JSP you put Java inside HTML and for Servlet you put HTML inside JAVA.Both JSP and Servlet is used for server side scripting.