An LTM object that represents a downstream server contains the IP address 192.168.9.250 and no port. What is this object?

A pool member pairs a node's IP address with a specific port number, so an object defined by IP address alone without a port does not qualify as a pool member.

A virtual server is a listener configured on the BIG-IP device itself that accepts inbound client connections, not an object representing a downstream server.

A pool is a logical container that groups multiple pool members together, not a single IP address object.

A Self IP is an IP address assigned to the BIG-IP's own network interface for device-level routing and management, not a representation of a downstream server.

A node is a standalone LTM object defined by an IP address only, with no associated port, representing the physical or virtual server itself. Pool members reference a node combined with a specific port number to define a complete service endpoint, so an object with only an IP and no port is by definition a node.