After passively scanning the network of Department of Defense (DoD), you switch over to active scanning to identify live hosts on their network. DoD is a large organization and should respond to any number of scans. You start an ICMP ping sweep by sending an IP packet to the broadcast address. Only five hosts respond to your ICMP pings; definitely not the number of hosts you were expecting. Why did this ping sweep only produce a few responses?

Which command can provide the investigators with details of all the loaded modules on a Linux-based system?

Which of the following email headers specifies an address for mailer-generated errors, like "no such user" bounce messages, to go to (instead of the sender's address)?

Frank, a cloud administrator in his company, needs to take backup of the OS disks of two Azure VMs that store business-critical dat a. Which type of Azure blob storage can he use for this purpose?

Adam, a forensic analyst, is preparing VMs for analyzing a malware. Which of the following is NOT a best practice?