Answer:
for (char i='a'; i<='e'; i++){
for (char j='a'; j<='e'; j++){
cout << i<< j<< "\n";
}
}
Explanation:
The loop runs all characters from the inner while the outer holds one character, by doing so, a will be matched with a,b,c,... Like wise b,c,d,... and on it goes.
Answer:An object
Explanation: An objects play an important role as the real world component/entity which display any element which are sourced through their behaviors and different states. Object are the entities that are required in the program for the making the program easier and simpler to understand .
Example- computer can be considered as the object which is related with the real world.
Answer:
The blocking ping is not effective in an organization because it may required ping echo message from some trusted system. the best method will be to do the filtering of incoming echo ICMP messages.
In systems we have ping utility, that is based on ICMP protocol. Its function is to check the end to end connectivity of the system.
In this case a fist all an echo ICMP message is send to the host then host reply with ICMP message. to defend yourself from this flood attack, we need to filter the incoming echo ICMP packet messages. a net filter can be used to achieve it.
The best method be to applied is the firewall having a net filter with limit setting or any intrusion system. In market we have various firewall and intrusion system available to do so.
Explanation:
Solution
Ping Flood Atack:
In this attack the main of the attacker is to saturate the system with ICMP for example (internet control message protocol) traffic. as you have saturated the system, it will have less CPU time to serve others.
Defence against this attack:
In our systems we have ping utility, that is based on ICMP protocol. Its used to check the end to end connectivity of the system. here fist all an echo ICMP message is send to the host then host reply with ICMP message. to defend yourself from this flood attack , we need to filter the incoming echo ICMP packet messages. a Net filter can be used to achieve this.
The best way will be to used the firewall having net filter with limit setting or any intrusion system. In market we have various firewall and intrusion system available to do so.
Blocking ping packets to avoid ping flood attack:
Its not a good approach to block ping packets. because you may required ping echo message from some trusted system. The best option will be to do the filtering of incoming echo ICMP message.
If your CIO asks such a stupid question run for the hill, he should not hold that title.
Every company, small, medium or large should have Firewalls, Intrusion Detection, Managed Virus Protection Software at the very least. Windows is the most deployed OS in the world and of course the main target of hackers i.e Viruses. MAC's to a lesser extent and Unix while probably the least vulnerable are still not immune to Viruses/Trojan and other Malware.
Users can still be the victims of trojan horses, phishing scams, and other online fraud. There<span> is no such thing as a 100% safe computer, a </span>Mac<span>, Windows, and even Linux are all capable of being infected with a </span>virus<span> or other malware.
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Lastly, physical access to any computer that is not encrypted is vulnerable.
Sometimes scientists use weather satellites.
