Scenario: A Citrix Architect needs to design a new multi-datacenter NetScaler deployment. The customer wants NetScaler to provide access to various backend resources by using Global Server Load Balancing (GSLB) in an Active-Active deployment.
Click the Exhibit button to view additional requirements identified by the architect.
Which GSLB algorithm or method should the architect use for the deployment, based on the stated requirements?
A. Dynamic round trip time (RTT)
B. Least response time
C. Static proximity
D. least connection
E. Least packets
F. Source IP hash
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Least Response Time: When the GSLB virtual server is configured to use the least response time method, it selects the service with the lowest value. Where, lowest value = current active connections X average response time. You can configure this method for HTTP and Secure Sockets Layer (SSL) services only. The response time (also called Time to First Byte, or TTFB) is the time interval between sending a request packet to a service and receiving the first response packet from the service. The NetScaler appliance uses response code 200 to calculate TTFB.
https://docs.citrix.com/en-us/netscaler/12/global-server-load-balancing/methods/configuring-algorithm-based-methods.html