You are a cybersecurity expert performing a penetration test for a client. Your client is concerned that hackers may be performing port scanning on the network, hoping to find open ports that could leave the company vulnerable to attacks. In this lab, your task is to use nmap to detect open ports as follows: Scan the following network addresses: 198.28.1.0/24 192.168.0.0/24 Find and report any open ports, especially those susceptible to hacking attacks. Answer the questions.

What is the largest decimal number that can be represented by a binary number with 4 place values? (remember, each place in a binary number has a value of a power of 2, starting in the ones place with 20.)

What is domain name system (dns)? allows dynamic ip address allocation so users do not have to have a preconfigured ip address to use the network converts ip addresses into domains, or identifying labels that use a variety of recognizable naming conventions the efficient coexistence of telephone, video, and data communication within a single network, offering convenience and flexibility not possible with separate infrastructures the integration of communication channels into a single service

What multimedia system creates an immersive, real-life experience that the user can interact with?