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Alexandra [31]
3 years ago
14

Access control lists (ACLs) are used to permit and deny traffic in an IP router.

Computers and Technology
1 answer:
Blizzard [7]3 years ago
7 0

Answer:

A. True

Explanation:

  • ACLs are the packet filters of the network. They may restrict, allow or deny traffic necessary for safety.
  • When setting rules for ACLs, all traffic flow depends on the point of view of the router's interface (not other networks).
  • ACL allows you to control the flow of packets for a single or group of IP addresses or for protocols such as TCP, UDP, ICMP and so on.
  • Invalid interface or accidental change of source / destination may adversely affect ACL network
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It is important to understand the different types of DoS attacks and the symptoms of those attacks. Leaving a connection half op
solong [7]

Answer:

SYN flood attack.

Explanation:

Doing this is a symptom of an SYN flood attack. Attackers performing this type of DoS attack will try and open as many connections as possible but never fully finish the connection. This ultimately causes the system to use all of its computing power to try to resolve these failed connections which would cause the system to crash or become unresponsive. Therefore, denying service to potential clients if done correctly. This is just one of the many types of DoS attacks that exist.

8 0
3 years ago
The following program uses a variable workHoursPerWeek rather than directly using 40 in the salary calculation expression.
Serjik [45]

Answer:

<u> Initial program output (from original program)</u>

Annual salary is: 40000

Monthly salary is: 3333

<u>Program output after workHoursPerWeek = 35</u>

Annual salary is: 35000

Monthly salary is: 2916

<u>Revised program (using variable workWeeksPerYear)</u>

  1.    public static void main(String[] args) {
  2.        int hourlyWage = 20;
  3.        int workHoursPerWeek = 35;
  4.        int workWeeksPerYear = 52;
  5.        int annualSalary = 0;
  6.        annualSalary = hourlyWage * workHoursPerWeek * workWeeksPerYear;
  7.        System.out.print("Annual salary is: ");
  8.        System.out.println(annualSalary);
  9.        System.out.print("Monthly salary is: ");
  10.        System.out.println((hourlyWage * workHoursPerWeek * workWeeksPerYear) / 12);
  11.        return;
  12.    }

Program output:

Annual salary is: 36400

Monthly salary is: 3033

<u>Revised Program after introducing monthly salary</u>

  1.    public static void main(String[] args) {
  2.        int hourlyWage = 20;
  3.        int workHoursPerWeek = 35;
  4.        int workWeeksPerYear = 52;
  5.        int annualSalary = 0;
  6.        int monthlySalary = 0;
  7.        
  8.        annualSalary = hourlyWage * workHoursPerWeek * workWeeksPerYear;
  9.        monthlySalary = hourlyWage * workHoursPerWeek * workWeeksPerYear;
  10.        
  11.        System.out.print("Annual salary is: ");
  12.        System.out.println(annualSalary);
  13.        System.out.print("Monthly salary is: ");
  14.        System.out.println((monthlySalary) / 12);
  15.        return;
  16.    }

Explanation:

One reason to use variable to replace the magic number is to improve the readability of the program. If we compared the revised version of the program with the original program, we will find that the variable enable our code easier to understand.

Besides, if we wish to change the value (e.g. working hours per year or per month), we just need to adjust the value assigned on the variables. The variables provide a single access point to get or change the value.

7 0
3 years ago
-Give a definition of the critical section problem and explain the purpose of the entry and exit code blocks
Alisiya [41]

Answer: In operating system a code segment which accesses  some shared variables or resources one at a time atomically such other no other code or process is accessing that resource or variable at the same time.

Entry section code block allows the access to the shared resource or variable and exit section code signals the termination from access to the shared resource or variable.

Explanation:

Entry and exit section codes needs to check certain properties before allowing the access and removal of access to a particular code segment.

These conditions are:

1. Bounded waiting.

2. Mutual exclusion.

3. checking thread execution status to allows other threads to enter the critical section (CS).

6 0
3 years ago
High level language is___________
lara31 [8.8K]

Answer:

B. Machine dependent and machine oriented pls mark me branilest

8 0
3 years ago
Can someone please help with this thanks luvs c
aivan3 [116]

Answer:

HELLO, be nice spread love... DO NOT HATE ON OTHERS

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COPY AND PASTE LETS DEFEAT BRAINLY

Explanation:

8 0
3 years ago
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