Which of the following provides the features of route summarization, assignment of contiguous blocks of addresses, and combining routes for multiple classful networks into a single route?
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A. B. C. D.A.
The correct answer is C. Supernetting.
Supernetting is a method of combining multiple IP networks with contiguous address blocks into a larger network, allowing for more efficient use of IP address space and reducing the number of routing entries in a router's routing table. Supernetting is also known as Classless Inter-Domain Routing (CIDR), which is an extension of the IP addressing scheme used in the Internet.
Route summarization is a technique used to minimize the number of routes that a router must maintain in its routing table. By summarizing routes, a router can replace multiple routes with a single summary route that covers all the networks. This technique reduces the size of the routing table and makes the routing process more efficient. Supernetting provides the feature of route summarization, making it a suitable answer to this question.
Assignment of contiguous blocks of addresses is also a feature provided by supernetting. Supernetting allows for multiple smaller networks to be combined into a larger network, providing a larger contiguous block of addresses that can be assigned to hosts on the network.
Combining routes for multiple classful networks into a single route is another feature provided by supernetting. Classful routing protocols divide the IP address space into classes, with each class representing a specific range of addresses. Supernetting allows for the combination of multiple classful networks into a single route, which can simplify the routing process and reduce the size of the routing table.
Private IP addressing, option D, is a separate concept from the other options in the question. Private IP addressing is a method of using IP addresses that are reserved for use within private networks, and are not globally unique. Private IP addressing is often used in conjunction with Network Address Translation (NAT) to allow private networks to communicate with the Internet using a single public IP address.
In summary, supernetting provides the features of route summarization, assignment of contiguous blocks of addresses, and combining routes for multiple classful networks into a single route, making it the correct answer to this question.