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Inessa05 [86]
3 years ago
12

As a system administrator, you want to block (reject) any packets from 170.122.0.0, 255.255.0.0. Which command will block those

packets?
Computers and Technology
1 answer:
saw5 [17]3 years ago
8 0

Answer:

route add 170.122.0.0 netmask 255.255.0.0 reject.

Explanation:

An IP address is an acronym for internet protocol address and it can be defined as a unique number assigned to a computer or other network devices, so as to differentiate each device from one another in an active network system. Thus, an IP address is typically used to uniquely identify each computer or network devices connected to the internet or network.

In order for packets to be sent to a remote destination, these three parameters must be configured on a host.

- Default gateway

- IP address

- Subnet mask

After a router successfully determines the destination network, the router checks the routing table for the resulting destination network number. If a match is found, the interface associated with the network number receives the packets. Else, the packets is dropped because it has been blocked on the routing table.

As a system administrator, if you want to block (reject) any packets from 170.122.0.0, 255.255.0.0. The command that should be used to block those packets is to use; route add 170.122.0.0 netmask 255.255.0.0 reject.

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I have a class named Counter. In this class I have a synchronized method called countRange(). This method prints out a count in
lesya [120]

Answer:

Following are the code to this question:

Counter T = new Counter(1, 100); //creating Counter class object and call its parameterized constructor        

Thread T1 = new Thread(new Runnable()  //creating Thread object T1.

{            

   public void run() //define run method

   {                

       T.countRange(); //call countRange method    

   }          

});    

Thread T2 = new Thread(new Runnable()  //creating another object "T2" of Thread.

{            

   public void run() //define run method

   {                

       T.countRange();           //call countRange method

   }      

});    

T1.start(); //start Thread T1    

T2.start(); //start Thread T2    

Explanation:

Description of the above code as follows:

  • In the given code, inside the main method the Counter class object "T" is created, that calls its parameterized constructor, which accepts two integer value that is "1 and 100".  
  • In the next step, thread class object T1 and T2, is created, which uses run method, in which it called the countRange method inside the method a for loop is declared that prints value between parameter value.  
  • In the last step, the start method is called, which uses the run method to call countRange method.  
  • For full program code please find the attachment.

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