Which Cisco ISE deployment model provides redundancy by having every node in the deployment configured with the Administration, Policy Service, and Monitoring personas to protect from a complete node failure?
Both B and C are correct
For me the answere Cisco is looking is C
Different Types of Cisco ISE Deployment
A deployment is one or more Cisco ISE nodes connected together in a cluster (distributed system).
A deployment that has a single Cisco ISE node is called a standalone deployment. This node runs all the personas. Standalone deployment is not recommended for production because it does not provide redundancy.
A deployment that has more than one Cisco ISE node is called a distributed deployment. To support failover and to improve performance, you can set up a deployment with multiple Cisco ISE nodes in a distributed fashion. In a Cisco ISE distributed deployment, administration and monitoring activities are centralized, and processing is distributed across the Policy Service nodes.
Small Deployment: Two-node deployment. One node as primary and the other node as secondary for redundancy.
https://www.cisco.com/c/en/us/td/docs/security/ise/performance_and_scalability/b_ise_perf_and_scale.html
I actually don't know if Cisco want to see answer Two-Node or Distributed
SISE ebook:
“ISE can be designed as a single-node (or standalone), two-node, or distributed deployment.” (+ FULLY distributed).
“A TWO-NODE Cisco ISE deployment incorporates redundancy, which is highly recommended in a production network. In this deployment type, the various ISE personas are distributed across two appliances. ... Each of the personas must be assigned to one or more of the TWO available appliances. When redundancy is available in this manner, it is sometimes referred to as an ISE DISTRIBUTED DEPLOYMENT. ...
The Administration and Monitoring personas both have the concept of primary and secondary nodes. ...PSN is always “active” as soon as the service is enabled on the appliance. ...
By balancing the primary and secondary roles across the two appliances, each persona is logically and physically distributed across the two appliances, providing the most resilient deployment using only two appliances.”
Continuation:
“A SINGLE-NODE, or STANDALONE, deployment is the most basic Cisco ISE deployment type. ...entire ISE infrastructure resides on a single appliance—either physical or virtual.”
HYBRID DEPLOYMENT = Administration and Monitoring personas are running together on the same pair of nodes for redundancy and in addition has up to 5 dedicated PSNs (one or two of them can be also dedicated as pxGrid and TC-NAC).
“In a FULLY DISTRIBUTED ISE deployment, the ISE Administration and Monitoring personas each reside on a separate appliance (or a separate pair of appliances if redundancy is required). The Administration and Monitoring appliances will each be an SNS-3695 appliance (or equivalent virtual appliance). With these Administration and Monitoring functions distributed, up to 50 PSNs can be deployed, with a maximum of 2,000,000 endpoints.”
B
A deployment that has more than one Cisco ISE node is called a distributed deployment.
https://www.cisco.com/c/en/us/td/docs/security/ise/2-6/install_guide/b_ise_InstallationGuide26/b_ise_InstallationGuide_26_chapter_00.html#small-network-deployments
https://www.grandmetric.com/knowledge-base/design_and_configure/cisco-ise-deployment-models/
https://www.cisco.com/c/en/us/td/docs/security/ise/2-6/install_guide/b_ise_InstallationGuide26/b_ise_InstallationGuide_26_chapter_00.html#small-network-deployments
A deployment that has more than one Cisco ISE node is called a distributed deployment. To support failover and to improve performance, you can set up a deployment with multiple Cisco ISE nodes in a distributed fashion. In a Cisco ISE distributed deployment, administration and monitoring activities are centralized, and processing is distributed across the Policy Service nodes. Depending on your performance needs, you can scale your deployment. A Cisco ISE node can assume any of the following personas: Administration, Policy Service, and Monitoring.
this question is stupid.
there are by definition from cisco only 2 deployment models:
standalone and distributed
also... as "all nodes" have PAN and MnT there can only be two nodes in the deployment as 2PAN/ 2MnT are max in a distributed deployment.
so answer would be a "small" distributed deployment with two-nodes
The correct answer is distributed.
A distributed deployment model provides redundancy by having every node in the deployment configured with the Administration, Policy Service, and Monitoring personas to protect from a complete node failure. This means that if one node fails, the other nodes can continue to provide services.
A dispersed deployment model is a type of distributed deployment model where the nodes are located in different geographical locations. This provides additional redundancy in case of a disaster at one location.
A two-node deployment model is a type of distributed deployment model where there are only two nodes in the deployment. This is the simplest type of distributed deployment model, but it does not provide as much redundancy as a dispersed deployment model.
A hybrid deployment model is a type of deployment model that combines elements of both distributed and standalone deployment models. This can be useful in cases where there are some nodes that need to be highly available and some nodes that do not.
Only 2 deployments type for Cisco ISE: Standalone, and Distributed ISE Deployments.
Distributed deployments can have several scenarios:
• Small Network Deployments
• Medium-Sized Network Deployments
• Large Network Deployments
Sauce:
https://www.cisco.com/c/en/us/td/docs/security/ise/2-3/install_guide/b_ise_InstallationGuide23/b_ise_InstallationGuide23_chapter_00.pdf
C- all distributed except for 2 Nodes, have Dedicated PSN nodes. Qn mentions PAN,MNT and PSN on all odes
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