a) How does nmap determined if a system on the same LAN is alive between before a scan? 1. It first tries to ping the target IP 2. It first queries DNS 3. An ICMP acknowledge message is sent to the IP 4. An ARP request is issued

b) By default, nmap scans 1. The most common 1,000 ports for each protocol 2. Only even ports 3. All open ports above 1024 4. Only port found open by a previous scan

c) What is the nmap option to scan all ports? 1. p 1-65535 2. P ALL 3. port all 4. P

d) Nmaps OS scan requires 1. Two privileged ports to be open 2. At least one open port and one closed port 3. Port 22 to be open 4. One odd and one even port to be open