Answer:
Applications where re-writeable optical laser disk would be preferred over hard disks for storage are:
While storing the data in large amount, the optical disk are more preferred as, for storing the videos, photographs and various types of the images.This optical laser disk are used for transferring the information or data from one computer to another so we can easily modify or re-write the data at any time as, this disk are more convenient than hard disk.The optical laser disk are also helpful for distributing the software to the customers or users by using its large storing capacity features, as compared to hard disks.
Answer:
The following are listed applications or requirements where the re-writable (optical) laser drive is preferred over storage hard drives.
Explanation:
A laser disk is often used to transmit data between one device to the next such that at any moment we could conveniently edit or re-write the details even though this drive is much more versatile than that of the disk.When processing the details in vast numbers, the optical disk is used to store certain photos, snapshots, and different file formats.As compared to hard disks, the optic disk has always been useful in delivering the applications to consumers or clients with its broad storage space functionality. Construct a SR latchfrom
1) two NAND gates.
2) two NOR gates
3)Also construct SR Latch with a control input.
Answer:
Refer to the images for different S-R Latches.
There are 3 images attached 1 having S-R latch with 2 NAND gates 2nd having S-R Latch with 2 NOR gates and last having S-R latch with control input.
Difference between NAND gated S-R latch and NOR gated S-R latch is the output is reversed.
In latch with control input the latch will only work when the control input or Enable signal in our image is HIGH or 1.
What are the 3rdand 4th forms of normalization, explain with examples?
Answer:
Normalization is a technique in which database are designed and organizes tables in such manner that reduces dependency and redundancy of the data. It can divide larger tables into the smaller tables and used them using different relationships.
3rd form of normalization is defined as, the table whose non primary key field are dependent on the primary key only and have no dependence any other non key primary field in the tables.
4th form of normalization is defined as, is used in database normalization where they are a non trivial multi value dependency other than candidate key. It builds on the first,second and third normal forms and the Boyce Codd Normal Form.
Thetremendous diversity of the source systems is the primary reasonfor their complexity. Do you agree
Answer:
Yes, i agree with the given statement that the tremendous diversity of the source system is the primary reason for their complexity as, when we storing the large amount of the data and the data warehousing are based on the solution to implemented to the data are get transformed for matched the desired queries. There is also the duplicate entry elimination which increased the complexity of the data.
Given memory partitions of 100K, 600K, 400K, 500K, and 300K (inorder), how would each of the First-fit, Best-fit, and Worst-fitalgorithms place processes of 117K, 412K, 325K, and 510K (inorder)?
Answer:
First-fit, Best-fit, and Worst-fit these are the techniques for the memory allocation of process in the memory locations.
First -fit: Allocating the first memory location to the process which is just smaller than or equal.
Best-fit: Allocating the smallest memory location that is greater than or equal to the size of process.
Worst-fit: Allocating the largest memory location in the storage to the processes.
These are the memory locations-100 k,600 k,400 k,500 k,300 k and size of processes-117 k,412 k,325 k and 510 k
For the first-fit,
We allocate 117 k to the 600 k memory location
Then, we allocate 412 k to the 500 k because others don't have the size.
Then,we allocate 325 k to the 400 k.
510 k will stop,as no memory locations can execute.
For the Best-fit,
We allocate 117 k to the 300 memory location
Then,we allocate 412 k to the 500 k.
Then,we allocate 325 k to the 400 k not 600 k according to best-fit.
Then we allocate 510 k to the 600 k.
For the worst fit,
We allocate 117 k to the 600 k memory location according to the worst-fit algorithm.
Then,we allocate 412 k to the 500 k.
Then,we allocate 325 k to the 400 k
We can' allocate 510 k in any memory location.
Explanation of First-fit, Best-fit, and Worst-fit algorithms in memory management.
In **First-fit** algorithm, the system allocates the first available partition that is big enough for the process. For the given partitions and processes, the 117K process would be placed in the 400K partition, the 412K process in the 600K partition, the 325K process in the 400K partition, and the 510K process in the 600K partition.
**Best-fit** algorithm assigns the smallest partition that is big enough for the process. The 117K process would go into the 400K partition, the 412K process in the 500K partition, the 325K process in the 400K partition, and the 510K process in the 600K partition.
**Worst-fit** algorithm allocates the largest available partition that can accommodate the process. In this scenario, the 117K process would be placed in the 600K partition, the 412K process in the 600K partition, the 325K process in the 400K partition, and the 510K process in the 600K partition.
. How is using 0 / 1 or true / false in specifying digital an abstraction?
Answer:
Digital electronics involves 2 states which are abstracted as 0/1 or true/false.
Explanation:
Digital electronics involves 2 states. For TTL logic this corresponds to 0 Volt (0) or 5 Volt (1). Analyzing further, a digital waveform has a square shape (not necessarily a perfect square) with 2 levels denoting the two states, namely, true(1) or false(0). So a 0 or 1 is not actually absolute but 0 corresponds to voltage level below a threshold voltage whereas 1 corresponds to voltage level above a threshold voltage.
#A year is considered a leap year if it abides by the #following rules: # # - Every 4th year IS a leap year, EXCEPT... # - Every 100th year is NOT a leap year, EXCEPT... # - Every 400th year IS a leap year. # #This starts at year 0. For example: # # - 1993 is not a leap year because it is not a multiple of 4. # - 1996 is a leap year because it is a multiple of 4. # - 1900 is not a leap year because it is a multiple of 100, # even though it is a multiple of 4. # - 2000 is a leap year because it is a multiple of 400, # even though it is a multiple of 100. # #Write a function called is_leap_year. is_leap_year should #take one parameter: year, an integer. It should return the #boolean True if that year is a leap year, the boolean False #if it is not. #Write your function here!
Answer:
To check if the year comes under each 100th year, lets check if the remainder when dividing with 100 is 0 or not.
Similarly check for 400th year and multiple 0f 4. The following C program describes the function.
#include<stdio.h>
#include<stdbool.h>
bool is_leap_year(int year);
void main()
{
int y;
bool b;
printf("Enter the year in yyyy format: e.g. 1999 \n");
scanf("%d", &y); // taking the input year in yyyy format.
b= is_leap_year(y); //calling the function and returning the output to b
if(b==true)
{
printf("Thae given year is a leap year \n");
}
else
{
printf("The given year is not a leap year \n");
}
}
bool is_leap_year(int year)
{
if(year%100==0) //every 100th year
{
if(year%400==0) //every 400th year
{
return true;
}
else
{
return false;
}
}
if(year%4==0) //is a multiple of 4
{
return true;
}
else
{
return false;
}
}
Explanation:
Output is given as image
Applications are programs that interact directly with the database.
Answer:
"Applications are programs that interact directly with the database" - This is False
Explanation:
An Application is a program or software which receives user and/or other application inputs in order to perform one or various tasks, activities or functions. Applications can have one or many programs within it running different tasks some of which can interact directly with a database but the Application itself does not.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
Write a C++ program that takes as input a list ( an array) of n integrers and finds the number of negative inetgers inthe list (array ).
Side Note: The problem did not come out ofthis book but the information that I study is from this book. And Iam not getting how to write the program.
Answer:Following is the program for the count of negative integers in an array:-
#include <bits/stdc++.h>
using namespace std;
int main()
{
int n,count=0;//declaring 2 variables n and count and initializing count with 0..
cout<<"Enter the size of the array"<<endl;
cin>>n;//prompting the size of the array...
int negative_nums[n];//array of integers of size n..
cout<<"Enter the numbers"<<endl;
for(int i=0;i<n;i++)
cin>>negative_nums[i];//prompting elements of the array...
for(int i=0;i<n;i++)//iterating over the array....
{
if(negative_nums[i]<0)// if integer in the array at ith position is negative...
count++;// increasing the count...
}
cout<<"The number of negative numbers are "<<count<<endl;//printing the count of negative integers...
return 0;
}
Explanation:
1. In the program i have taken a count integer initializing it with 0
2. Iterating over the array.
3. If the element at ith position is less than zero then increasing the count by 1.
4.Printing the count of negative integers in the array.
Regarding enumerations, the ____ method returns an array of the enumerated constants.
a.
values
b.
valueOf
c.
toArray
d.
ordinal
Answer:
a. values
Explanation:
The values() method returns an array of all values of an enumeration. This method is defined automatically by the java compiler for the enum data type.
For example:
enum Traffic_Signal {RED,YELLOW,GREEN};
for(Traffic_Signal t : Traffic_Signal.values()){
System.out.println(t);
}
This code segment will print out all the valid values in the Traffic_Signal enumeration.
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 final value of “y” after this for loop is finished? for (y = 3; y<=14; y+=5)
Answer:
18
Explanation:
In First iteration y = 3 and condition is y<=14 i.e. 3<=14 means true and continue the loop and increment the value of y by 5, means y will become 8
In Second iteration y = 8 and condition is y<=14 i.e. 8<=14 means true and continue the loop and increment the value of y by 5, means y will become 13
In Third iteration y = 13 and condition is y<=14 i.e. 13<=14 means true and continue the loop and increment the value of y by 5, means y will become 18
In Fourth iteration y = 18 and condition is y<=14 i.e. 18<=14 means false and exit from the loop
So the value of y will be 18 after the loop
Just as you can block statements that depend on an if, you can also block statements that depend on a(n) ____.
a.
Boolean expression
b.
operator
c.
else
d.
constant
The statements that can be blocked in programming, similar to those depending on an if statement, depend on a(n) 'else'. An 'else' statement allows for the conditional execution of a block of code when the 'if' condition is not met.
Explanation:Just as you can block statements that depend on an if statement, you can also block statements that depend on a(n) c. else. In programming, an else statement is used to execute a block of code when the condition in the if statement is not met. Both if and else statements are structured to handle Boolean expressions which evaluate to either true or false. These control flow statements form the building blocks of logical structures within code and enable conditional execution of code segments.
It's important to distinguish these structures from constants, operators, and statement constants. A constant holds a value that does not change throughout the execution of the program, whereas an operator is used to perform operations on variables and values. A statement constant, on the other hand, is a symbolic representation of a particular statement (or truth value) that remains unchanged within the logical framework of the discussion or argument. Using conditional statements like if-then-else allows programmers to control the flow of execution and make decisions within a program.
Internet marketing typically is one-way and impersonal ( true or false)
Answer:
Internet marketing typically is one-way and impersonal- False.
The following statement is false.
what are the differences between levels 1, 2 and 3 cache memoroes??
Answer: Level 1 cache memory-it is the memory which is built on the microprocessor itself
Level 2 cache memory- it is the memory which is found on the other chips usually
Level 3 cache memory-it is sort of a memory container/bank that is built in the CPU
Explanation:
Level 1 cache memory is the primary cache memory which is fast and is usually stuck on the microprocessor chip.It has a small size .Level 2 cache memory is fast secondary cache memory which is usually on the different chip and is larger in size compared to L1 cache memory.L 3 cache memory is the cache memory is present for the supporting the L1 and L2 cache memory and to make their processing better and is present in the CPU usually.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.
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.
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.
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.
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.
Given an integer K, find the KthFibonacci number using recursion.
Write a function that accepts an integer K. The function should return Kth Fibonacci number using recursion.
Input:
10
where:
First line represents a value of K
Output:
55
C program that find Fibonacci number using recursion
#include<stdio.h>
int fib(int k) /*Function that returns Fibonacci number using recursion*/
{
if (k <= 1)
return k;
return fib(k-1) + fib(k-2); //Recursive loop
}
int main () //driver function
{
int k;
printf("Enter the Number for which we requires Fibonacci number-\n"); /*Taking input as k integer for finding its Fibonacci number*/
scanf("%d",&k);
printf("%d", fib(k)); //Calling function fib
return 0;
}
Output
Enter the Number for which we requires Fibonacci number -10
55
Function that returns Fibonacci number using recursion
int fib(int k)
{
if (k <= 1)
return k; //returning Fibonacci Number
return fib(k-1) + fib(k-2);
}
Here fib is the function of return type integer which accept a parameter k of integer type. In this function we are returning Fibonacci number.
Why do local variables lose their values between calls to the function in which they are
defined?
Answer:
Variables which are declared within a function are called Local variables.They are named local because they are used locally only means they cannot be used outside the function in which they are declared.These local variables exist in the memory till the function execution starts and are deleted when the execution of function ends.Hence they lose their value between calls to the function in which they are declared.
Local variables lose their values between function calls because they are scoped to the function block, meaning they are removed from memory after the function ends. They prevent naming conflicts and allow modular coding by shadowing any variables with the same name defined outside the function.
Explanation:Local variables lose their values between calls to the function in which they are defined because they are scoped to the function block. This means that once a function call ends, the local variables that were defined within that function become inaccessible and are typically removed from memory, a process sometimes assisted by a garbage collector in certain programming languages.
Local variables are advantageous because they prevent naming conflicts and ensure that variables within a function do not affect variables with the same name outside the function, effectively shadowing them. This encapsulation allows for modular code, where functions can be understood and debugged in isolation without concerning other parts of the program.
In contrast to global variables, which persist throughout the runtime of the program, local variables defined within, for example, a block in C++ are known to be 'short-lived'. They encourage good programming practices by being limited to their respective scopes, thereby improving code clarity and potential memory efficiency.
What can be done to improve the security of business uses of the Internet? Give several examples of ecurity measures and technologies you would use
Answer Explanation
There are many things to improve the security of business with the help of internet
the pillars of business depends upon the information and internet provide security to these information.the computer or laptop which is used for business purpose are secure by internetwe use hardware and software firewalls to protect the PC or laptop. we use antivirus to protect the systemfor runing the computer we uses software firewallsfor protection purpose we use hardware firewallsint myArray-11,3,-8,30,-2,0,5,7,-100,44); Write a loop statement to display the positive numbers each on a separate line like this: 30
Answer:
#include <iostream>
using namespace std;
int main()
{
int myArray[] = {-11,3,-8,30,-2,0,5,7,-100,44};
int n = sizeof(myArray)/sizeof(myArray[0]);
for(int i=0;i<n;i++){
if(myArray[i]>=0){
cout<<myArray[i]<<endl;
}
}
return 0;
}
Explanation:
First include the library iostream in c++ programming for using the input/output function.
Then, create the main function and define the array with the elements which contain both positive element as well negative elements.
after, use the for loop for traversing the array and inside the loop take the conditional statement for check if element in the array is positive.. if it true then print the element on the screen with separate line.
Which type of page of replacement algorithm is Windows XP and Unix are using?
Answer:
Windows XP uses the Local Page Replacement algorithm. It is a type of FIFO. In this, Pages are taken from processes using more than their minimum working set and Processes initialize with a default of 50 pages. XP monitors page fault rate and adjusts working set size accordingly.
UNIX uses the Global replacement Algorithm through Modified second-chance clock algorithm. Here Pages are aged with each second and Pages that are not used for a long time will eventually have a value of zero.
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.
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
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
Which one is not among standard creation committee?
ITU-T
IEEE
Internet society and IETF
All of the given
Answer:
All of the given
Explanation:
ITU-T stands for International Telecommunication Union (Telecommunication). It generates standards for the telecommunication sector.IEEE stand for Institute of Electrical and Electronics Engineers. It generates global standards for a wide range of industries.Internet Society and IETF : IETF stands for Internet Engineering Task Force. Both the Internet Society and IETF are responsible for standards related to the internet.Hence all the given options are examples of standard creation committee.
To create a window, which of thefollowing classes has to be extended?ContainerJFrameJButtonJTextField
Answer:
J frame class has to be extended for the creation of a window
Explanation:
J frame needs to be extended to create a window, this is because this class in windows has a title, support buttons components, a border or we can say it has decorations for windows.
The rest of the classes like J button and J text fields lie within the J frame and the Container class is a super class and provides only outlines to J Frame class.
Distinguish the critical factors that affect the network performance in wireless Mesh Network?
Answer:
Physical Object and Radio Frequency Interference
Explanation:
Great question, it is always good to ask away and get rid of any doubts that you may be having.
There are two main factors that affect a networks performance when talking about Wireless Mesh Network. The two factors are Physical Object and Radio Frequency Interference.
Physical Objects can cause interference in mesh networks. Common Objects such as trees and houses are common causes of interference on wireless mesh networks. The best connection is gained with a clear sight from one node to another. Specific objects such as aluminum made objects can cause complete signal severance.
Radio Frequency Interference is the second main factor when dealing with mesh networks. If there are many signals on the same frequency, Information or packets can get lost in the process causing really bad connection.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.