DRAG DROP
Categorize the high availability network resources or feature items on the left by dragging them to the appropriate resiliency or management level on the right.
Answer: 
Explanation:
Cisco Nonstop Forwarding (NSF) with Stateful Switchover (SSO) is a Cisco innovation for
routers with dual route processors. Cisco NSF with SSO allows a router, which has
experienced a hardware or software failure of an active route processor, to maintain data link
layer connections and continue forwarding packets during the switchover to the Standby
route processor. This forwarding can continue despite the loss of routing protocol peering
arrangements with other routers. Routing information is recovered dynamically, in the
background, while packet forwarding proceeds uninterrupted.Rapid Spanning Tree Protocol (RSTP) is an evolution of the Spanning Tree Protocol
(802.1D standard) and provides for faster spanning tree convergence after a topology
change. The standard also includes features equivalent to Cisco PortFast, UplinkFast and
BackboneFast for faster network reconvergence.
Cisco IOS IP Service Level Agreements (SLAs) enables customers to assure new businesscritical IP applications, as well as IP services that utilize data, voice, and video, in an IP
network. Cisco has augmented traditional service level monitoring and advanced the IP
infrastructure to become IP application-aware by measuring both end-to-end and at the IP
layer. With Cisco IOS IP SLAs, users can verify service guarantees, increase network
reliability by validating network performance, proactively identify network issues, and
increase Return on Investment (ROI) by easing the deployment of new IP services. Cisco
IOS IP SLAs uses active monitoring to generate traffic in a continuous, reliable, and
predictable manner, thus enabling the measurement of network performance and health.
NTP is designed to synchronize the time on a network of machines. NTP runs over the User
Datagram Protocol (UDP), using port 123 as both the source and destination, which in turn
runs over IP. NTP Version 3 RFC 1305 is used to synchronize timekeeping among a set of
distributed time servers and clients. A set of nodes on a network are identified and
configured with NTP and the nodes form a synchronization subnet, sometimes referred to as
an overlay network. While multiple masters (primary servers) may exist, there is no
requirement for an election protocol.
Reference:
http://www.cisco.com/en/US/technologies/tk648/tk365/technologies_white_paper0900aecd8023df74_ps6599_Products_White_Paper.html
http://www.cisco.com/en/US/products/hw/switches/ps708/products_configuration_example09186a00807b0670.shtml
http://www.cisco.com/en/US/docs/ios/12_4/ip_sla/configuration/guide/hsthresh.html
http://www.cisco.com/en/US/tech/tk869/tk769/technologies_white_paper09186a0080117070.shtml