State two ways of preventing virus attack on a computer.​

Answer:

Following are the solution to the given question:

Explanation:

Please find the following Excel form for calculating the bonus as required. Please ensure the equation is duplicated even so, with the sign "=." It is possible to insert this formula into cell L12. Then cut/paste the cell into other L12:L39 cells.

[tex]=IF(AND(G12/F12 \geq \$L \$7,J12 \leq \$L\$8)=TRUE,\$L\$9,0)[/tex]

The mixed microbial reference here is used in L7, L8, and L9 so these cell references are not moved whenever the formula is copied to L12:L39.

Please verify that whenever the copy has also been copied, the cell formula appears beneath in each cell.

It must be as below in L12.

[tex]=IF(AND(G12/F12 \geq \$L\$7,J12\leq \$L\$8)=TRUE,\$L\$9,0)[/tex]

It must be as follows in L13.

[tex]=IF(AND(G13/F13\geq \$L\$7,J13\leq \$L\$8)=TRUE,\$L\$9,0)[/tex]

and so on.

Answer:

Functions of an operating system. An operating system provides three essential capabilities: It offers a UI through a CLI or GUI; it launches and manages the application execution; and it identifies and exposes system hardware resources to those applications -- typically, through a standardized API.

Explanation:

Answer:

Which lan is it

Answer:

Đang học năm nhất trường TDT đúng k bạn :D

Explanation:

Answer:

Cloud Bursting

Explanation:

One of the best possible solutions for this scenario would be Cloud Bursting. This is a solution of using Cloud Server services to handle the server farm workload. The difference is that Cloud Bursting allows the company to use the Cloud services only when their own personal web server farms hit peak demand and can no longer handle the incoming demand. The excess demand is outsourced to the Cloud Server and lets them handle it dynamically without the company having to add any additional hardware to their server farm.

Answer:

import math

n = int(input("Enter n: "))

for number in range(1, n+1):

   if number % 2 == 1:

       print("{:.2f}".format(math.sqrt(number)), end=" ")

Explanation:

In order to calculate the square roots of the numbers, import math. Note that math.sqrt() calculates and gives the square root of the given number as a parameter

Ask the user to enter the n

Create a for loop that iterates from 1 to n+1 (Since n is included, you need to write n+1)

Inside the loop, check whether the number is odd or not using the if structure and modulo. If the number is odd, calculate its square root using the math.sqrt() and print the result with two digits after the decimal

Answer:

Answer to the following question is as follows;

Explanation:

Windows 7 for 100 users and Windows 8.1 for 25 users are the best options since they both enable networking and active directory, and Windows 8.1 also offers Windows server capabilities.

Winxp would therefore work for $100, but it is unsupported and has no updates.

If you wish to go with open source, you can choose Ubuntu 16 or 18 or Linux.

Answer:

Hence the answer is given as follows,

Explanation:

By using the NAND operator:-

P or Q and P -Q make an everyday implication sentence using the only NAND is given as,

Answer:

ムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダムダ

Answer:

Learning in a global community enables you to expand your horizons and learn new languages.

Explanation:

Im not sure what the teacher's point is, but the other options seem to hinder students from wanting to learn in a global community. If her goal is to convince students to learn globally then option D is your answer :)

Answer:

Cevap b okey xx

Explanation:

Sinyorrr

Answer:

Hence the code is given as follows,

import java.util.Scanner;

public class LabProgram {

   public static String createAcronym(String userPhrase){

       String result = "";

       String splits[] = userPhrase.split(" ");

       for(int i = 0;i<splits.length;i++){

           if(splits[i].charAt(0)>='A' && splits[i].charAt(0)<='Z')

               result += splits[i].charAt(0);

       }

       return result;

   }

   public static void main(String[] args) {

       Scanner scan = new Scanner(System.in);

       String s = scan.nextLine();

       System.out.println(createAcronym(s));

   }

}

Answer:

Explanation:

The following program is written in Javascript. It creates a prompt that asks the user for his/her name and saves it in a variable called userName. Then it uses that variable to welcome the user. A test case is shown in the images below with the desired output.

let userName = prompt("Enter Your Name")

alert(`Hello ${userName}`)

Answer:

Explanation:

/* From the information provided, For now will consider the name of table as TRIPGUIDES*/

/*In all the answers below, the syntax is based on Oracle SQL. In case of usage of other database queries, answer may vary to some extent*/

1.

Select R.Reservation_ID, R.Trip_ID , C.Customer_Num,C.Last_Name from Reservation R, Customer C where C.Customer_Num=R.Customer_Num ORDER BY C.Last_Name

/*idea is to select the join the two tables by comparing customer_id field in two tables as it is the only field which is common and then print the desired result later ordering by last name to get the results in sorted order*/

2.

Select R.Reservation_ID, R.Trip_ID , R.NUM_PERSONS from Reservation R, Customer C where C.Customer_Num=R.Customer_Num and C.LAST_NAME='Goff' and C.FIRST_NAME='Ryan'

/*Here, the explaination will be similar to the first query. Choose the desired columns from the tables, and join the two tables by equating the common field

*/

3.

Select T.TRIP_NAME from TRIP T,GUIDE G,TRIPGUIDES TG where T.TRIP_ID=TG.TRIP_ID and TG.GUIDE_NUM=G.GUIDE_NUM and G.LAST_NAME='Abrams' and G.FIRST_NAME='Miles'

/*

Here,we choose three tables TRIP,GUIDE and TRIPGUIDES. Here we selected those trips where we have guides as Miles Abrms in the GUIDES table and equated Trip_id from TRIPGUIDES to TRIP.TRIP_Name so that can have the desired results

*/

4.

Select T.TRIP_NAME

from TRIP T,TRIPGUIDES TG ,G.GUIDE

where T.TRIP_ID=TG.TRIP_ID and T.TYPE='Biking' and TG.GUIDE_NUM=G.GUIDE_NUM and G.LAST_NAME='Boyers' and G.FIRST_NAME='Rita'

/*

In the above question, we first selected the trip name from trip table. To put the condition we first make sure that all the three tables are connected properly. In order to do so, we have equated Guide_nums in guide and tripguides. and also equated trip_id in tripguides and trip. Then we equated names from guide tables and type from trip table for the desired results.

*/

5.

SELECT C.LAST_NAME , T.TRIP_NAME , T.START_LOCATION FROM CUSTOMER C, TRIP T, RESERVATION R WHERE R.TRIP_DATE='2016-07-23' AND T.TRIP_ID=R.TRIP_ID AND C.CUSTOMER_NUM=R.CUSTOMER_NUM

/*

The explaination for this one will be equivalent to the previous question where we just equated the desired columns where we equiated the desired columns in respective fields and also equated the common entities like trip ids and customer ids so that can join tables properly

*/

/*The comparison of dates in SQL depends on the format in which they are stored. In the upper case if the

dates are stored in the format as YYYY-MM-DD, then the above query mentioned will work. In case dates are stored in the form of a string then the following query will work.

SELECT C.LAST_NAME , T.TRIP_NAME , T.START_LOCATION FROM CUSTOMER C, TRIP T, RESERVATION R WHERE R.TRIP_DATE='7/23/2016' AND T.TRIP_ID=R.TRIP_ID AND C.CUSTOMER_NUM=R.CUSTOMER_NUM

*/

6.

Select R.RESERVATION_ID, R.TRIP_ID,R.TRIP_DATE FROM RESERVATION R WHERE R.TRIP_ID IN

{SELECT TRIP_ID FROM TRIP T WHERE STATE='ME'}

/*

In the above question, we firstly extracted all the trip id's which are having locations as maine. Now we have the list of all the trip_id's that have location maine. Now we just need to extract the reservation ids for the same which can be trivally done by simply using the in clause stating print all the tuples whose id's are there in the list of inner query. Remember, IN always checks in the set of values.

*/

7.

Select R.RESERVATION_ID, R.TRIP_ID,R.TRIP_DATE FROM RESERVATION WHERE

EXISTS {SELECT TRIP_ID FROM TRIP T WHERE STATE='ME' and R.TRIP_ID=T.TRIP_ID}

/*

Unlike IN, Exist returns either true or false based on existance of any tuple in the condition provided. In the question above, firstly we checked for the possibilities if there is a trip in state ME and TRIP_IDs are common. Then we selected reservation ID, trip ID and Trip dates for all queries that returns true for inner query

*/

8.

SELECT G.LAST_NAME,G.FIRST_NAME FROM GUIDE WHERE G.GUIDE_NUM IN

{

SELECT DISTINCT TG.GUIDE_NUM FROM TRIPGUIDES TG WHERE TG.TRIPID IN {

SELECT T.TRIP_ID FROM TRIP T WHERE T.TYPE='Paddling'

}

}

/*

We have used here double nested IN queries. Firstly we selected all the trips which had paddling type (from the inner most queries). Using the same, we get the list of guides,(basically got the list of guide_numbers) of all the guides eds which were on trips with trip id we got from the inner most queries. Now that we have all the guide_Nums that were on trip with type paddling, we can simply use the query select last name and first name of all the guides which are having guide nums in the list returned by middle query.

*/

Answer:

The stalling hurt the performance by 60%.

Explanation:

This can be calculated as follows:

Value of CPI ideally taken by pipeline = 1

From the question, we are given:

Stall frequency = 20%,

Number of frequency = 3

Therefore, we have:

Cycles per instruction (CPI) of the architecture = Value of CPI ideally taken by pipeline + (Stall frequency * Number of frequency) = 1 + (20% * 3) = 1.60

Amount by which the stalling hurt the performance = Cycles per instruction (CPI) of the architecture Value of CPI ideally taken by pipeline = 1 - 0.60 = 0.60, or 60%

Therefore, the stalling hurt the performance by 60%.

Answer:

Bro this is my area the answer is WPA2 and AES  

Explanation:

its because AES is a more secure encryption protocol introduced with WPA2. AES isn't some creaky standard developed specifically for Wi-Fi networks, either. It's a serious worldwide encryption standard that's even been adopted by the US government.

There are many possible variations in wireless network design depending on the surroundings.

Even in a complicated single site, different wireless networks running on the same hardware as part of the broader wireless LAN environment can have different network configuration fundamentals needed for a successful deployment.

At the same time, a number of essential network configuration activities are part of any successful wireless project's typical chores. Let's look at the broad and specific procedures that wireless experts should take while setting up enterprise-grade Wi-Fi networks.

Therefore, There are many possible variations in wireless network design depending on the surroundings.

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Answer:

f l o o r

Explanation:

Answer:

True

Explanation:

Spending plans serve as a tool to analyze program execution, an indicator of potential problems, and a predictor of future program performance.

Answer: the Search bar located above the list of contacts.

the Search People bar on the Find command group.

the Search People located on the People navigation icon.

CTL + E to activate the search contacts box.

advanced Find under the Search tab.

Explanation:

An Outlook user can search for contacts through the following ways:

• the Search bar located above the list of contacts.

• the Search People bar on the Find command group.

• the Search People located on the People navigation icon.

• CTL + E to activate the search contacts box.

• advanced Find under the Search tab.

Therefore, the correct options are A, B, C, D and E.

Answer:

Explanation:

Important functions of an operating System:  

Security –  

The operating system uses password protection to protect user data and similar other techniques. it also prevents unauthorized access to programs and user data.  

Control over system performance –  

Monitors overall system health to help improve performance. records the response time between service requests and system response to have a complete view of the system health. This can help improve performance by providing important information needed to troubleshoot problems.  

Job accounting –  

Operating system Keeps track of time and resources used by various tasks and users, this information can be used to track resource usage for a particular user or group of user.  

Error detecting aids –  

Operating system constantly monitors the system to detect errors and avoid the malfunctioning of computer system.  

Coordination between other software and users –  

Operating systems also coordinate and assign interpreters, compilers, assemblers and other software to the various users of the computer systems.  

Memory Management –  

The operating system manages the Primary Memory or Main Memory. Main memory is made up of a large array of bytes or words where each byte or word is assigned a certain address. Main memory is a fast storage and it can be accessed directly by the CPU. For a program to be executed, it should be first loaded in the main memory. An Operating System performs the following activities for memory management:  

It keeps tracks of primary memory, i.e., which bytes of memory are used by which user program. The memory addresses that have already been allocated and the memory addresses of the memory that has not yet been used. In multi programming, the OS decides the order in which process are granted access to memory, and for how long. It Allocates the memory to a process when the process requests it and deallocates the memory when the process has terminated or is performing an I/O operation.  

Processor Management –  

In a multi programming environment, the OS decides the order in which processes have access to the processor, and how much processing time each process has. This function of OS is called process scheduling. An Operating System performs the following activities for processor management.  

Keeps tracks of the status of processes. The program which perform this task is known as traffic controller. Allocates the CPU that is processor to a process. De-allocates processor when a process is no more required.  

Device Management –  

An OS manages device communication via their respective drivers. It performs the following activities for device management. Keeps tracks of all devices connected to system. designates a program responsible for every device known as the Input/Output controller. Decides which process gets access to a certain device and for how long. Allocates devices in an effective and efficient way. Deallocates devices when they are no longer required.  

File Management –  

A file system is organized into directories for efficient or easy navigation and usage. These directories may contain other directories and other files. An Operating System carries out the following file management activities. It keeps track of where information is stored, user access settings and status of every file and more… These facilities are collectively known as the file system.  

Answer:

About 0-1 fingers at minimum

Explanation:

you can type with your toes/elbow as well. Any body part really.

To type the word "floor" on a regular keyboard layout, you would generally need six fingers: three on your left hand and three on your right.

Your index finger (usually used for the "F" key) on your left hand would be utilised for the letter "f." Your middle finger (which is normally used for the "D" key) would be utilised for the letter "l."

Finally, your ring finger (which is normally used for the "S" key) would be utilised for the letter "o."

Your index finger (usually used for the "J" key) on your right hand would be utilised for the letter "o." Your middle finger (which is normally used for the "K" key) would be utilised for the second letter "o."

Finally, your ring finger (which is normally used for the "L" key) would be utilised for the letter "r."

Thus, on a typical keyboard layout, you would type the word "floor" with three fingers from each hand.

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Answer:

Explanation:

The following code is written in Java. It uses for loops to loop through the array of characters, and uses IF statements to check if the symbols in the expression are balanced. If so it returns true, otherwise it breaks the function and returns false. Two test cases have been provided in the main method and the output can be seen in the attached image below.

import java.util.ArrayList;

class Brainly {

   public static void main(String[] args) {

       char[] exp = { '[', 'A', '*', '{', 'B', '(', 'C', 'D', ')', '}', ']'};

       char[] exp2 = {'[', 'A', '*', '(', 'C', '}', ']'};

       System.out.println(checkBalance(exp));

       System.out.println(checkBalance(exp2));

   }

   public static boolean checkBalance(char exp[]) {

       ArrayList<Character> symbols = new ArrayList<>();

       for (char x: exp) {

           if ((x =='[') || (x == '{') || (x == '(')) {

               symbols.add(x);

           }

           if (x ==']') {

               if (symbols.get(symbols.size()-1) == '[') {

                   symbols.remove(symbols.size()-1);

               } else {

                   return false;

               }

           }

           if (x =='}') {

               if (symbols.get(symbols.size()-1) == '{') {

                   symbols.remove(symbols.size()-1);

               } else {

                   return false;

               }

           }

           if (x ==')') {

               if (symbols.get(symbols.size()-1) == '(') {

                   symbols.remove(symbols.size()-1);

               } else {

                   return false;

               }

           }

       }

       return true;

   }

}

Answer:

Header and footer

Explanation:

The page layout tab usually found in document programs such as Microsoft Word hold options used to configure several page options which is to be applied to a document. The page layout option gives users options to set page margins, orientation, page numbering, indentation and the other page layout options which is primarily how we would like our document to look like when printed. The page layout option also allows the insertion of a header and footer which is a note which can be written at the topmost and bottomost part of the document. Once, a header and footer option is selected, it is applied to every page of the document being worked on at the moment.

Question options:

a. RAID 0

b. RAID 1

c. RAID 5

d. RAID 6

e. RAID 10

Answer:

d. RAID 6

Explanation:

RAID is Redundant Array of Inexpensive/Independent Disks. RAID combines low cost physical hard disk drives in one hard disk drive. RAID is used to achieve data redundancy(data backup but with synchronization) or improved performance or both.

To get what the director requires he would need to use RAID 6. RAID 6 is RAID level optimized to achieve data redundancy but with slow performance.

Answer:

PING

Explanation:

To check if there's still connectivity between the computer and server, I would use the ping command.

The ping command is primarily a TCP/IP command. What this command does is to troubleshoot shoot. It troubleshoots connection and reachability. This command also does the work of testing the name of the computer and also its IP address.

Answer:

C

Explanation:

Real time exchange of messages or files with another online user

Answer:

Hence the answer is a sum.

Explanation:

Here the statement shows that the dashboard should show the sum and average as two separate columns if we name measure names because the column field then for marks we'll use the sum. Since the sum displays the sum of the values of all the fields, which refers to the marks of the person.

Therefore the answer is a sum.

If we use measure names as the column field, we should use "the sum".

A set of cells that are support equipment on about a similar vertical line, is considered as a column.

The preceding reply is thus right.

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Answer:

B

Explanation:

because data is phone business

Answer:

Here the code is given as follows,

Explanation:

class Example:

   def _init_(self, val):

       self.val = val

   def _gt_(self, other):

       return self.val > other.val

   def _sub_(self,other):

       return abs(len(self.val) - len(other.val))

def main():

   obj1 = Example('this is a string')

   obj2 = Example('this is another one')

   print(obj1 > obj2)

   print(obj1 - obj2)

main()

Output:-

Answer:

Explanation:

The answer should be 1.16 or 61.1

Answer:

"TCP/IP library" is the appropriate answer.

Explanation:

Answer:

Here the code is given as follows,

Explanation:

Code:-

#include <stdio.h>  

int isSorted(int *array, int n) {

   if (n <= 1) {

       return 1;

   } else {

       return isSorted(array, n-1) && array[n-2] <= array[n-1];

   }

}  

int main() {

   int arr1[] = {3, 6, 7, 7, 12}, size1 = 5;

   int arr2[] = {3, 4, 9, 8}, size2 = 4;  

   printf("%d\n", isSorted(arr1, size1));

   printf("%d\n", isSorted(arr2, size2));

   return 0;

}

Output:-