DRAG DROP
Categorize the high availability network resources of 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 business-critical
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 networkperformance, 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_paper0900aecd8023df
74_ps6599_Products_White_Paper.html
http://www.cisco.com/en/US/products/hw/switches/ps708/products_configuration_example09186a
00807b0670.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
