Which port is used by the Simple Network Management Protocol (SNMP)?

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Multiple Choice

Which port is used by the Simple Network Management Protocol (SNMP)?

Explanation:
SNMP uses specific well-known ports for its communications, chosen to fit its lightweight, query/response nature. The standard port for SNMP queries (from manager to agent) is UDP 161, which is why this is the correct choice. When an SNMP agent needs to alert a manager, it uses UDP 162 for traps. The other ports listed correspond to different services (143 for IMAP, 443 for HTTPS). While SNMP can be run over TCP in some scenarios, the canonical and most common setup centers on UDP port 161 for normal SNMP operations.

SNMP uses specific well-known ports for its communications, chosen to fit its lightweight, query/response nature. The standard port for SNMP queries (from manager to agent) is UDP 161, which is why this is the correct choice. When an SNMP agent needs to alert a manager, it uses UDP 162 for traps. The other ports listed correspond to different services (143 for IMAP, 443 for HTTPS). While SNMP can be run over TCP in some scenarios, the canonical and most common setup centers on UDP port 161 for normal SNMP operations.

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