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1Y0-401 · Question #323

How should the architect implement high availability (HA) with 12 NetScaler appliances?

The correct answer is C. Create three NetScaler virtual servers configured with the subnets of the three sites, and bind them to. To implement high availability (HA) with 12 NetScaler appliances across three sites, the architect should create three NetScaler virtual servers, each configured with the subnets of one site, to manage global traffic distribution and failover.

Design XenDesktop Infrastructure Components

Question

How should the architect implement high availability (HA) with 12 NetScaler appliances?

Options

  • AIn each datacenter, deploy an HA pair in the internal network for load balancing and an HA pair in the
  • BIn each datacenter, deploy an HA pair in the internal network for Gateway traffic and an HA pair in the
  • CCreate three NetScaler virtual servers configured with the subnets of the three sites, and bind them to
  • DCreate six NetScaler virtual servers in HA pairs configured with the subnets of the three sites, and bind

How the community answered

(50 responses)
  • A
    14% (7)
  • B
    6% (3)
  • C
    76% (38)
  • D
    4% (2)

Why each option

To implement high availability (HA) with 12 NetScaler appliances across three sites, the architect should create three NetScaler virtual servers, each configured with the subnets of one site, to manage global traffic distribution and failover.

AIn each datacenter, deploy an HA pair in the internal network for load balancing and an HA pair in the

This option describes a valid intra-site high availability deployment pattern of NetScaler appliances (HA pairs for internal LB and DMZ Gateway per datacenter), but it does not describe the overarching inter-site HA implementation that leverages virtual servers for multi-site failover.

BIn each datacenter, deploy an HA pair in the internal network for Gateway traffic and an HA pair in the

This option describes a physical deployment of HA pairs within each datacenter with reversed roles compared to typical recommendations. Similar to A, it focuses on intra-site HA appliance deployment rather than the logical configuration for inter-site HA using virtual servers.

CCreate three NetScaler virtual servers configured with the subnets of the three sites, and bind them toCorrect

For implementing high availability across multiple sites with NetScaler, creating a Global Server Load Balancing (GSLB) virtual server for each site is a key component. These virtual servers are configured with site-specific subnets to intelligently direct user traffic to the appropriate, available datacenter, ensuring inter-site HA and disaster recovery.

DCreate six NetScaler virtual servers in HA pairs configured with the subnets of the three sites, and bind

The phrasing 'virtual servers in HA pairs' is incorrect terminology; virtual servers themselves are not in HA pairs, but are hosted on HA-paired appliances. Additionally, this option is incomplete and does not clearly describe a comprehensive HA implementation strategy.

Concept tested: NetScaler GSLB for multi-site HA

Source: https://docs.citrix.com/en-us/netscaler/current-release/global-server-load-balancing.html

Topics

#NetScaler#High Availability (HA)#Multi-site deployment#Infrastructure design

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