Which of the following protocols defines split MAC mechanisms for controlling and provisioning of access points (APs)?

A.
LWAPP

B.
CAPWAP

C.
HSRP

D.
LDAP

Explanation:
CAPWAP defines split MAC mechanisms for controlling and provisioning of access points (APs). CAPWAP (Control and provisioning of wireless access points) is based on LWAPP (Lightweight access point protocol). CAPWAP is a standard, interoperable protocol that enables a controller to manage a collection of wireless access points. The important feature provided by CAPWAP is the optional support of encryption, which was not offered by LWAPP. It uses datagram transport layer security (DTLS) as its security algorithm. It uses UDP ports 5246 and 5247. Answer option A is incorrect. LWAPP (Lightweight Access Point Protocol) is a protocol used to control multiple Wi-Fi wireless access points at once. This can reduce the amount of time spent on configuring, monitoring, or troubleshooting a large network. This also allows network administrators to closely analyze the network.
Answer option C is incorrect. Hot Standby Router Protocol (HSRP) is a Cisco proprietary redundancy protocol used to establish a fault-tolerant default gateway, and has been described in detail in RFC 2281. The HSRP protocol establishes a framework between network routers in order to achieve default gateway failover if the primary gateway should become inaccessible, in close association with a rapid-converging routing protocol like EIGRP or OSPF. By multicasting packets, HSRP sends its hello messages to the multicast address 224.0.0.2 (all routers) using UDP port 1985, to other HSRP- enabled routers, defining priority between the routers. The primary router with the highest configured priority acts as a virtual router with a pre-defined gateway IP and responds to the ARP request from machines connected to the LAN with the MAC address 0000.0c07.acXX where XX is the group ID in hexadecimal. If the primary router fails, the router with the next-highest priority takes over the gateway IP and answer
ARP requests with the same MAC address, thus achieving transparent default gateway fail-over. Answer option D is incorrect. Lightweight Directory Access Protocol (LDAP) is a protocol used to query and modify information stored within directory services.