Which definition of a host route is true?
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A. B. C. D.B
A host route, also known as a host-specific route or a host route prefix, is a type of route that identifies a single host or IP address within a larger network. It is a specific route entry in a routing table that indicates how to reach a specific host or IP address on a network.
Out of the given options, the correct definition of a host route is option B: a route to the exact /32 destination address. In networking, a /32 prefix denotes a host address, and a host route contains information on how to reach a specific host on a network. This route can be used by routers to forward packets directly to the intended host, bypassing other routers on the network.
Option A is incorrect as it describes a default route, which is used when there is no other route available for a specific destination network. A default route is a special type of route that is used to send all traffic that is not specifically addressed in the routing table to a particular next hop or gateway.
Option C is incorrect as it describes a dynamic route, which is learned by a router through a routing protocol such as OSPF, EIGRP, or BGP. A dynamic route is a route that is automatically updated based on changes in the network topology and can be used to ensure that traffic is sent along the most efficient path.
Option D is incorrect as it describes a static route, which is a route that is manually configured by a network administrator. A static route is a fixed route that does not change unless it is manually modified or removed. It is commonly used in small networks where the network topology does not change frequently, or to provide a backup route in case of a failure of a dynamic routing protocol.
In summary, a host route is a specific route entry in a routing table that indicates how to reach a specific host or IP address on a network, and it is denoted by a /32 prefix. It is used to send packets directly to a specific