<span>an electronic device used to determine a person's identity by detecting and matching the person's physical features, such as fingerprints or the eyes, to a database</span>
Answer:
shutdown -h +15 It is time for a shutdown!
Explanation:
In a work environment where there is an admin and users connected to the server when the admin wants to Give a 15-minute delay to allow users enough time to save their work data and logout from the system. the command above shuts down after 15 minutes delay and notifies the user with "It is time to shut down!".
Answer: The difference present between the packet switching and circuit switching are as follows:-
- Packet switching i the switching in which the data packet travels through the connectionless path whereas connection oriented routes are present for circuit switching
- Network layer uses the feature of packet switching while physical layer uses circuit switching technique
- Data transferring is mostly preferred through packet switching and voice communication takes place through the circuit switching.
- Packet switching is considered flexible as no already established connection is present for switching but the connection in circuit switching are already defined which makes it less flexible.
Among the packet switching and circuit switching , packet switching is preferred for the communication through the data packets because they have flexibility and affordability.It can establish numerous connection for switching and this make it efficient.
Answer:
Port scanner
Explanation:
The penetration tester would most likely use a port scanner. A port scanner can be explained to be an application that is made to check a server or host for ports that are open. This application can also be used by administrators to check their security networks so as to know those network services that are running on a host and also to know existing vulnerabilities. Attackers also use this to exploit victims.
Revising and editing because it makes the report look sharp and business like.