Which tool is commonly used for remote system monitoring in network management?

The correct choice for a tool commonly used for remote system monitoring in network management is SNMP, which stands for Simple Network Management Protocol. SNMP is specifically designed for monitoring and managing devices on IP networks. It allows network administrators to collect and organize information about managed devices on the network and to modify that information to change device behavior.

SNMP operates through a set of protocols that facilitate the communication and exchange of monitoring data between network devices, including routers, switches, servers, and workstations. It works by utilizing managers and agents; the manager polls the agents on a regular basis to receive status information about the devices being monitored.

In contrast, Syslog is a standard for message logging from various system components and applications rather than a dedicated monitoring tool. While it can be part of a remote monitoring strategy, it does not specifically focus on device management.

Lastlog is a command used in Unix/Linux systems that shows the last login of users, which is useful for security auditing but not for general network monitoring.

Samba is a software solution that provides seamless file and print services to SMB/CIFS clients. It is primarily focused on enabling interoperability between Unix/Linux servers and Windows clients, not specifically for monitoring network device performance and status.

Thus, SNMP stands out