Bill is a security analyst for his company. All the switches used in the company's office are Cisco switches. Bill wants to make sure all switches are safe from ARP poisoning. How can Bill accomplish this?
You ping a target IP to check if the host is up. You do not get a response. You suspect ICMP is blocked at the firewall. Next you use hping2 tool to ping the target host and you get a response. Why does the host respond to hping2 and not ping packet?
An attacker is attempting to telnet into a corporation's system in the DMZ. The attacker doesn't want to get caught and is spoofing his IP address. After numerous tries he remains unsuccessful in connecting to the system. The attacker rechecks that the target system is actually listening on Port 23 and he verifies it with both nmap and hping2. He is still unable to connect to the target system. What could be the reason?
Which of the following can take an arbitrary length of input and produce a message digest output of 160 bit?
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