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Greeley [361]
2 years ago
8

The basic job of a ________ is to enforce an access control policy at the border of a network.

Computers and Technology
1 answer:
Elza [17]2 years ago
7 0

Answer:

A. Firewall

Explanation:

 

A firewall is a network security device that monitors incoming and outgoing network traffic and decides whether to allow or block specific traffic based on a defined set of security rules.

Firewalls have been a first line of defense in network security for over 25 years. They establish a barrier between secured and controlled internal networks that can be trusted and untrusted outside networks, such as the Internet.  

A firewall can be hardware, software, or both.

-Cisco

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On the planet Sigma, robots excavate chunks of a very precious cristaline. These chunks can be divided into smaller part only on
Rainbow [258]

Answer:

Start the algorithm and check the weight of the ship. Load the crystalline to the ship. Check to see if the ship weighs ship weight + k pound crystalline, if less, add more crystalline. If excess, remove the excess crystalline, but if the weight meets the condition, then take off with the loaded ship to planet sigma.

Explanation:

The algorithm continuously checks the weight of the ship on loading with the calculated sum of the ship and k pound crystalline weight. The ship is able to load the correct maximum amount of crystalline to the planet sigma.

7 0
2 years ago
Write a program named edit_data.py that asks a person their age. Accept an int. Use a custom exception to return a message if th
Katena32 [7]
An exception is an error that happens during the execution of a program. Exceptions are known to non-programmers as instances that do not conform to a general rule. The name "exception" in computer science has this meaning as well: It implies that the problem (the exception) doesn't occur frequently, i.e. the exception is the "exception to the rule". Exception handling is a construct in some programming languages to handle or deal with errors automatically. Many programming languages like C++, Objective-C, PHP, Java, Ruby, Python, and many others have built-in support for exception handling.

Error handling is generally resolved by saving the state of execution at the moment the error occurred and interrupting the normal flow of the program to execute a special function or piece of code, which is known as the exception handler. Depending on the kind of error ("division by zero", "file open error" and so on) which had occurred, the error handler can "fix" the problem and the programm can be continued afterwards with the previously saved data.
5 0
2 years ago
Compare the memory organization schemes of contiguous memory allocation and paging with respect to the following issues: a. Exte
Free_Kalibri [48]

Answer:

The comparison is based on memory organization schemes of contiguous memory allocation and paging with respect to External fragmentation, Internal fragmentation and Ability to share code across processes.

Explanation:

Memory organization schemes of contiguous memory allocation:

Contiguous memory allocation schemes suffers from external fragmentation. The reason is that address space is distributed contiguously and the holes and gaps keep growing when the old processes die and new processes are introduced. The variable size partition suffers from external fragmentation however the fixed size partitions do not suffer from external fragmentation. Contiguous memory allocation with variable size partitions does not encounter an internal fragmentation but with fixed size partitions suffers from internal fragmentation. Contiguous memory allocation does not support sharing code across processes. This is because the virtual memory segment of a process is not fragmented into non-contiguous fine grained blocks.

Paging:

Paging does not encounter external fragmentation as pages are of the fixed or equal size. So this reduces external fragmentation. However paging suffers from internal fragmentation. This is because a process can request more space or it can request for a less space. When page is allocated to the such a process that page is no longer utilized.This results in internal fragmentation because of the wastage of space even when the page has internal space but cannot be fully utilized. Paging allows to share code across processes.

5 0
2 years ago
Write a program named as calcPrice.c that formats product information entered by the user and calculate the total amount of purc
Colt1911 [192]

Answer:

Here is the calcPrice.c program:

#include <stdio.h>   //to use input output functions

int main(void)  {  //start of main method

   int itemNo, month, day, year, quantity;  //declares variables to hold item number, quantity, and date

   float unitPrice; //declare variable to hold price per unit

   printf("Enter item number: ");  // prompts user to enter item number

   scanf("%d", &itemNo);  //reads item number from user and stores it in itemNo variable

   printf("Enter unit price: ");  // prompts user to enter unit price

   scanf("%f", &unitPrice);  //reads input unit price and stores it in unitPrice variable

   

    printf("Enter quantity: ");  //prompts user to enter quantity

   scanf("%d", &quantity);  //reads input quantity and stores it in quantity variable

   printf("Enter purchase date (mm/dd/yyyy): ");  //prompts user to enter purchase date

   scanf("%d/%d/%d", &month, &day, &year);  //reads input date and stores it in month, day and year variables

    float totalAmount = unitPrice * quantity;  //computes the total amount

   printf("\nItem\tUnit Price\tQTY\tPurchase Date\tTotal Amount\n");  //displays the item, unit price, qty, purchase data and total amount with tab space between each

   printf("%d\t$%5.2f\t%d\t%.2d/%.2d/%d\t$%5.2f\n", itemNo, unitPrice,quantity, month, day, year,totalAmount);   }    //displays the values of itemNo, unitPrice, quantity, month, day, year and computed totalAmount with tab space between each

Explanation:

Lets suppose user enters 583 as item number, 13.5 as unit price, 2 as quantity and 09/15/2016 as date so

itemNo = 583

unitPrice = 13.5

quantity = 2

month = 09

day = 15

year = 2016

totalAmount is computed as:

  totalAmount = unitPrice * quantity;

 totalAmount = 13.5* 2

totalAmount = 27.00

Hence the output of the entire program is:

Item    Unit Price      QTY     Purchase Date   Total Amount      

583     $  13.50           2           09/15/2016         $  27.00  

The screenshot of the program along with its output is attached.

4 0
2 years ago
The ____ section of the project plan should describe the major project functions and activities and identify those individuals w
harkovskaia [24]

Answer:

Option(c) is the correct answer to the given question .

Explanation:

The Project responsibilities section is responsible of the planning of project.

Following are the Roles of the Project Responsibilities

  • To check the objective of the project goals.
  • Works with customers and  to define and meet client needs and the overall objective .
  • Cost estimation and expenditure production of the project
  • Ensure the fulfillment of the client .Analysis and enterprise risk management. and Tracking the progress of project.

All the others options are not responsible of the planning of project that's why Option(c) is the correct answer .

7 0
2 years ago
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