why SSTF disk scheduling is not practically feasible?
Answer:
There is a lack of predictability because of the high variance of response time. Additionally, SSTF may cause starvation of some requests. Starvation is possible for some requests as it favors easy to reach requests and ignores the far-away processes.
SSTF disk scheduling is not practically feasible because it makes an external call and is forced to wait for I/O to complete, thereby giving up its first-place position.
What is SSTF disk scheduling?Shortest Seek Time First (SSTF) is a disc scheduling algorithm that is abbreviated as SSTF. Before moving the head away to service other requests, it selects the request that is closest to the current head location.
Because of the high variance in response time, there is a lack of predictability. Furthermore, SSTF may cause some requests to be denied. Some requests may experience starvation because the system prioritizes nearby requests and overlooks distant operations.
Therefore, because it makes an external call and is obliged to wait for I/O to complete, SSTF disc scheduling is not viable because it loses its first-place status.
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10. Which property is used to show the form in maximize state
a) Selection State b) Window State c) Mode d) Opening State
Answer:
windows state
Explanation:
the answer is windows state.
Code Example 4-1 int limit = 0; for (int i = 10; i >= limit; i -= 2) { for (int j = i; j <= 1; ++j) { cout << "In inner for loop" << endl; } cout << "In outer for loop" << endl; } (Refer to Code Example 4-1.) How many times does "In inner for loop" print to the console? a. 1 b. 0 c. 2 d. 5 e. 7
Answer:
"In inner for loop" is printed twice.
Answer: C. 2
Explanation:
Code:
int main()
{
int limit = 0;
for (int i =0; i>=limit; i-=2) {
for (int j = i; j <= 1; ++j){
cout << "In inner for loop" << endl;
}
cout << "In outer for loop" << endl;
}
return 0;
}
Output:
In inner for loop
In inner for loop
In outer for loop
The output "In inner for loop" print twice.
Thus, option (c) is correct.
In the given code example, the inner for loop has a condition j <= 1.
This condition means that the loop will execute as long as j is less than or equal to 1.
However, the initial value of j is i, and the value of i decreases by 2 in each iteration of the outer for loop.
When i = 8, the inner loop has the condition j ≤ 1.
The loop will iterate as long as j is less than or equal to 1.
So the inner loop executes twice: once when j = 8, and then when j = 9. The statement "In inner for loop" prints twice.
Therefore, the output print twice.
Thus, option (c) is correct.
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Write a program that randomly chooses among three different colors for displaying text on the screen. Use a loop to display 20 lines of text, each with a randomly chosen color. The probabilities for each color are to be as follows: white 30%, blue 10%, green 60%. Suggestion: Generate a random integer between 0 and 9. If the resulting integer falls in the range 0 to 2 (inclusive), choose white. If the integer equals to 3, choose blue. If the integer falls in the range 4 to 9 (inclusive), choose green. Test your program by running it ten times, each time observing whether the distribution of line colors appears to match the required probabilities.
INCLUDE Irvine32.inc
.data
msgIntro byte "This is Your Name's fourth assembly extra credit program. Will randomly",0dh,0ah
byte "choose between three different colors for displaying twenty lines of text,",0dh,0ah
byte "each with a randomly chosen color. The color probabilities are as follows:",0dh,0ah
byte "White=30%,Blue=10%,Green=60%.",0dh,0ah,0
msgOutput byte "Text printed with one of 3 randomly chosen colors",0
.code
main PROC
;
//Intro Message
mov edx,OFFSET msgIntro ;intro message into edx
call WriteString ;display msgIntro
call Crlf ;endl
call WaitMsg ;pause message
call Clrscr ;clear screen
call Randomize ;seed the random number generator
mov edx, OFFSET msgOutput;line of text
mov ecx, 20 ;counter (lines of text)
L1:;//(Loop - Display Text 20 Times)
call setRanColor ;calls random color procedure
call SetTextColor ;calls the SetTextColor from library
call WriteString ;display line of text
call Crlf ;endl
loop L1
exit
main ENDP
;--
setRanColor PROC
;
; Selects a color with the following probabilities:
; White = 30%, Blue = 10%, Green = 60%.
; Receives: nothing
; Returns: EAX = color chosen
;--
mov eax, 10 ;range of random numbers (0-9)
call RandomRange ;EAX = Random Number
.IF eax >= 4 ;if number is 4-9 (60%)
mov eax, green ;set text green
.ELSEIF eax == 3 ;if number is 3 (10%)
mov eax, blue ;set text blue
.ELSE ;number is 0-2 (30%)
mov eax, white ;set text white
.ENDIF ;end statement
ret
setRanColor ENDP
5. Which events is used to code on any form load
a) Form Text b) Form Code c) Form Load d) Form Data
Answer:
I think b is correct answer
write a C++ program that receives a number as input from the user ,and checks whether it is greater than 8 and less than 10 or not and print the result
num_in = float (input = ("Please enter a number from 0 to ten: "))
def cmp_num(num_in):
try:
if num_in > 8 and num_in < 10:
print ("{0} is greater than 8 and less than 10".format(num_in) )
elif num_in < 8 and num_in < 10:
print (" {0} is less than 8 and less than 10".format(num_in) )
else:
print ("{0} is out of the restriction".format (num_in))
except ValueError:
print ("Invalid input")
Write a program that reads in an integer, and breaks it into a sequence of individual digits. Display each digit on a separate line. For example, the input 16384 is displayed as 1 6 3 8 4 You may assume that the input has no more than five digits and is not negative.
Answer:
The program in Python is as follows:
num = int(input())
for i in str(num):
print(int(i))
Explanation:
This gets input for the number
num = int(input())
This converts the number to string and iterates through each element of the string
for i in str(num):
This prints individual digits
print(int(i))
Which Windows installation method requires that you manually rename computers after the installation?
Answer:
Command line
Explanation:
After installation of the machine one needs to manually rename the computer. This can be done through the start then settings, then system, and select rename the PC in the right-hand side column.What does the statement that follows do? double gallons[6] = { 12.75, 14.87 }; a. It assigns the two values in the initialization list to the first two elements but leaves the other elements with the values currently in memory. b. It assigns the two values in the initialization list to the first and second elements, third and fourth elements, and fifth and sixth elements. c. This statement is invalid. d. It assigns the two values in the initialization list to the first two elements and default values to the other elements.
Answer:
It assigns the two values in the initialization list to the first two elements and default values to the other elements.
Explanation:
Given
The array initialization
Required
Interpret the statement
double gallons[6] implies that the length/size of the array gallons is 6.
In other words, the array will hold 6 elements
{12.75, 14.87} implies that only the first two elements of the array are initialized ; the remain 4 elements will be set to default 0.
Describe two types of storage devices?
Answer:
Central Process Unit and Random Access Memory
What are computer programs that make it easy to use and benefit from techniques and to faithfully follow the guidelines of the overall development methodology
Answer:
A Tool
Explanation:
Tools are computer programs that make it simple to use and benefit from techniques while adhering to the overall development methodology's guidelines. The correct option is A).
What are computer programs?A computer-aided software development case tool is a piece of software that aids in the design and development of information systems. It can be used to document a database structure and provide invaluable assistance in maintaining design consistency.
A computer software application is one that is developed to assist a particular organizational function or process, such as payroll systems, market analysis, and inventory control.
The goal of introducing case tools is to reduce the time and cost of software development, while also improving the quality of the systems created.
Therefore, the correct option is A) Tools.
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The question is incomplete. Your most probably complete question is given below:
A) Tools
B) Techniques
C) Data flow
D) Methodologies
Why is it useful for students to practice the MLA and APA citation methods?
Answer:
Citing or documenting the sources used in your research serves three purposes:
It gives proper credit to the authors of the words or ideas that you incorporated into your paper.
It allows those who are reading your work to locate your sources, in order to learn more about the ideas that you include in your paper.
Which of the following are advantages of a local area network, as opposed to a wide area network? Select 3 options.
provides access to more networks
higher speeds
more secure
lower cost
greater geographic reach
Answer:
✅ more secure
✅ lower cost
✅ higher speeds
Explanation:
Edge 2022
mk chưa hiểu nên các bạn giúp mk vs
Answer:
my tab and state it all over my name to
By Using the following schema, answer the following SQL queries and commands: Product(P_code.P_name, P_price, P_on_hand,vend_code) Vender(vend_code, vend_fname, vend_areacode, vend_phone) 1- find the venders names who sell products in TN-5 area and their names include "dan". 2- find the code, name and vender code of product that has price between 1500S and 2500S and the product that has price between 48005 and 5600S. 3- Find the name, and code of venders who had 5 microwaves that has price less than 3500S. 4- Find the phone numbers of venders who sell Televisions. 5- Delete the records of venders who their first name is 'smith'
Explanation:
answer me pls i need sol bbbd
how can I order the prices negatively affect other producers of goods and services
In securing the client/server environment of an information system, a principal disadvantage of using a single level sign-on
password is the danger of creating a(n)
A
administrative bottleneck
B
trap door entry point
С
lock-out of valid users
D
Single point of failure
Answer:
C
Explanation:
Write a program that asks the user to enter in a username and then examines that username to make sure it complies with the rules above. Here's a sample running of the program - note that you want to keep prompting the user until they supply you with a valid username:
user_in = input ("Please enter your username: " )
if user_in in "0123456789":
print ("Username cannot contain numbers")
elif user_in in "?":
print ("Username cannot continue special character")
else:
print (" Welcome to your ghetto, {0}! ".format(user_in))
how did hitles rules in nazi germany exemplify totiltarian rule?
Answer:
hope this helps if not srry
Which of the given assertion methods will return true for the code given below? Student student1 = new Student(); Student student2 = new Student(); Student student3 = student1;
The Student class is as follows.
public class Student{
private String name;
}
a. assertEquals(student1, student2);
b. assertEquals(student1, student3);
c. assertSame(student 1, student3);
d. assertSame(student1, student2);
Answer:
The true statements are :
A. assertEquals(student1,student2)
C. assertSame(student1,student3)
Explanation:
AssertEquals() asserts that the objects are equal, but assertSame() asserts that the passed two objects refer to the same object or not, if found same they return true, else return false.
Methods are collections of named code segments that are executed when evoked
The assertion method that will return true for the given code is: assertEquals(student1,student2)
The code segment is given as:
Student student1 = new Student();
Student student2 = new Student();
Student student3 = student1;
In Java, the assertEquals() method returns true if two objects have equal values.
Assume student1 and student2 have equal values, the statement assertEquals(student1,student2) will return true
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Consider the relational schema below: Students(sid: integer, sname: string, major: string) Courses(cid: integer, cname: string, hours: integer) Enrollment(sid: integer, cid: integer, grade: real) Write a relational algebra expression that satisfies this query? Find the distinct names of all students that take at least three courses and major in "Philosophy".
Solution :
Here, we need to perform JOIN operation of the students and registration.
Use NATURAL JOIN operator [tex]\Join[/tex] and so no need to specify Join condition.
Also we need to selection operator tp select only those course whose major in "philosophy".
Finally we projection operator π to project only distinct students name who took at least three courses.
[tex]$\pi [\sigma_{\text{student's nam}e} [ \sigma(\text{three courses}) \Join \text{"Philosophy"}]]$[/tex]
what is the main difference between a computer program and computer software
Answer:
Think of computer software sort of as DNA, because DNA is the human body's computer software. And a computer program is like an activity your body does.
Explanation:
Sorry if this didn't help.
The analog computer deals directly with
continuously variable aspects of physical phenomena such as a electrical, mechanical etc.
The analog computer deals directly with measured values of continuous physical magnitude.
What is an Analog computer?An analog computer may be defined as a type of computer that is significantly used to process analog data. These computers store data as a continuum of physical quantities and perform calculations using measurements.
It is completely different from digital computers, which use symbolic numbers to represent results. are great for situations that require data to be measured directly without conversion to numbers or codes. Analog computers, although readily available and used in scientific and industrial applications such as control systems and aircraft, have largely been superseded by digital computers due to the many complications involved.
Therefore, the analog computer deals directly with measured values of continuous physical magnitude.
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Your question seems incomplete. The most probable complete question is as follows:
The analog computer deals directly with:
number or codes.measured values of continuous physical magnitude.signals in the form of 0 or 1.signals in discrete values from 0 to 9Differentiate between email and NIPOST System
Answer: NIPOST System is sending mail physical like photos and letters and many items
Email is electronic mail sent through the internet but you can send it anywhere
Explanation:
PartnerServer is a Windows Server 2012 server that holds the primary copy of the PartnerNet.org domain. The server is in a demilitarized zone (DMZ) and provides name resolution for the domain for Internet hosts.
i. True
ii. False
Answer:
i. True
Explanation:
A Domain Name System (DNS) can be defined as a naming database in which internet domain names (website URLs) are stored and translated into their respective internet protocol (IP) address.
This ultimately implies that, a DNS is used to connect uniform resource locator (URL) or web address with their internet protocol (IP) address.
Windows Server 2012 is a Microsoft Windows Server operating system and it was released to the general public on the 4th of September, 2012, as the sixth version of the Windows Server operating system and the Windows NT family.
PartnerServer is a Windows Server 2012 server that was designed and developed to hold the primary copy of the PartnerNet dot org domain.
Typically, the server is configured to reside in a demilitarized zone (DMZ) while providing name resolution for the domain of various Internet hosts.
In order to prevent a cyber attack on a private network, end users make use of a demilitarized zone (DMZ).
A demilitarized zone (DMZ) is a cyber security technique that interacts directly with external networks, so as to enable it protect a private network.
Write a program whose input is a character and a string, and whose output indicates the number of times the character appears in the string. The output should include the input character and use the plural form, n's, if the number of times the characters appears is not exactly 1. Ex: If the input is: n Monday the output is: 1 n Ex: If the input is: z Today is Monday the output is: 0 z's Ex: If the input is: n It's a sunny day the output is: 2 n's Case matters. Ex: If the input is: n Nobody the output is: 0 n's n is different than N.
Answer:
The program in Python is as follows:
char = input("Character: ")[0]
string = input("String: ")
kount = string.count(char)
print(kount,char,end="")
if kount!=1:
print("'s")
Explanation:
This gets character input
char = input("Character: ")[0]
This gets string input
string = input("String: ")
This counts the occurrence of char in string
kount = string.count(char)
This prints the number of occurrence and the character
print(kount,char,end="")
This prints 's, if kount is other than 1
if kount!=1:
print("'s")
The slope and intercept pair you found in Question 1.15 should be very similar to the values that you found in Question 1.7. Why were we able to minimize RMSE to find the same slope and intercept from the previous formulas? Write your answer here, replacing this text.
What’s cloud-based LinkedIn automation?
Answer:
Cloud based LinkedIn automation includes tools and software that run through the cloud-system and are not detectable by LinkedIn. Cloud based LinkedIn automation tools are becoming the favorite among B2B marketers and sales professionals as they are giving the desired outcomes without any effort.
when was first generation of computer invented?
Write a pseudocode method swap(aList, i, j) that interchanges the items currently in positions i and j of a list. Define the method in terms of the operations of the ADT list, so that it is independent of any particular implementation of the list. Assume that the list, in fact, has items at positions i and j. What impact does this assumption have on your solution
Answer:
Explanation:
The following pseudocode for this method using operations of the ADT list would be the following
swap(aList, indexI, indexJ) {
initialize temp_variable = Retrieve(indexI, aList)
Insert(Retrieve(indexJ, aList), indexI, aList)
Insert(Retrieve(indexI, aList), temp_variable, aList)
}
This code basically saves the aList index of i , into a temporary Variable. Then it sets the aList index of i to the value of the element in index of j. Then it does the same for the index of j with the tem_variable. If we assume that the indexes of i and j exist, then it can crash our entire program if those indexes are missing from the list when we try to access them.
