Cisco CCNP Data Center 300-610 Practice Test Questions and Exam Dumps Part8 Q141-160

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Question 141. Which language models configuration and operational data in NX OS

  1. YAML
  2. YANG
  3. HTML
  4. SQL

Correct Answer: 2. YANG

Explanation:

YANG is the data modeling language used by Cisco NX OS model driven programmability to describe configuration data, operational state, remote procedure calls, and notifications. A structured data model allows automation tools to interact with network devices in a consistent way instead of depending entirely on manually entered CLI commands. Cisco supports YANG models through several standards based programmable interfaces. The current 300 610 DCID blueprint explicitly includes model driven programmability as part of data center automation design, making an understanding of YANG important when evaluating scalable network automation approaches.

Question 142. Which protocol provides a REST style interface to YANG modeled data

  1. LACP
  2. FSPF
  3. OSPF
  4. RESTCONF

Correct Answer: 4. RESTCONF

Explanation:

RESTCONF provides a REST style interface for accessing configuration and operational information represented by YANG data models. Cisco NX OS supports RESTCONF as one of its standards based model driven programmability interfaces. RESTCONF operates through HTTP based mechanisms and maps YANG modeled network data into a format that automation applications can access programmatically. This approach gives developers and network engineers a standardized alternative to sending sequences of CLI commands. Cisco also supports NETCONF and gRPC based interfaces for model driven operations, allowing designers to select the protocol that best fits an automation platform or operational workflow.

Question 143. Which NX OS interface commonly uses XML encoded remote procedure calls

  1. NETCONF
  2. LACP
  3. VXLAN
  4. vPC

Correct Answer: 1. NETCONF

Explanation:

NETCONF is a standards based management protocol commonly used to access structured configuration and operational data through network data models. It traditionally uses XML encoded remote procedure calls and works with YANG models to represent the available network configuration and state. Cisco NX OS supports NETCONF as part of its model driven programmability framework. This provides a machine oriented interface that automation systems can use for repeatable configuration operations. NETCONF differs from NX API CLI because it is based on structured models rather than simply transporting traditional NX OS CLI commands through an API mechanism.

Question 144. Which transport does NX API REST use

  1. Fibre Channel
  2. CAPWAP
  3. HTTP or HTTPS
  4. FSPF

Correct Answer: 3. HTTP or HTTPS

Explanation:

NX API REST uses HTTP or HTTPS as its transport mechanism. Cisco designed NX API REST to make Nexus configuration and operational functions accessible to external automation applications. It can support show operations as well as basic and advanced switch configuration through programmatic requests. Using HTTPS provides encrypted management communication and is generally preferable for production environments. NX API REST reduces the need for administrators to log directly into every switch and execute individual commands manually. The interface therefore supports scalable network automation and is directly relevant to the REST API objective in the current DCID blueprint.

Question 145. Which two common encodings are supported for model driven NX OS data

  1. CSV and HTML
  2. JSON and XML
  3. SQL and YAML only
  4. Binary and PDF

Correct Answer: 2. JSON and XML

Explanation:

Cisco NX OS model driven programmability supports JSON and XML as common structured data encodings. Separating the underlying YANG data model from the specific encoding allows applications to select a format appropriate to their automation environment. JSON is widely used in modern web based APIs because it is compact and easy for programming languages to process. XML remains important in protocols such as NETCONF and in systems that rely on XML structured data. The 300 610 blueprint specifically includes JSON and XML encodings within the REST API and automation knowledge expected for the exam.

Question 146. Which format is commonly used to write Ansible playbooks

  1. YAML
  2. HTML
  3. SQL
  4. CSV

Correct Answer: 1. YAML

Explanation:

Ansible playbooks are commonly written in YAML, a human readable structured format used to describe automation tasks and desired configuration actions. A playbook can call Ansible modules that interact with Cisco NX OS devices and apply repeatable network changes across many systems. Cisco provides supported NX OS modules and examples for automating Nexus switches. Because playbooks describe tasks declaratively and can be placed under version control, they help reduce repetitive manual configuration. Ansible is explicitly included in the current 300 610 DCID automation objectives, so candidates should understand its basic automation model and use of playbooks.

Question 147. What is a key operational characteristic of Ansible

  1. It requires an agent on every switch
  2. It operates only on Fibre Channel
  3. It requires a GPU
  4. It is agentless

Correct Answer: 4. It is agentless

Explanation:

Ansible is an agentless automation platform, meaning a dedicated Ansible software agent does not have to be installed on each managed network device. Cisco documentation for MDS explains that Ansible can use supported mechanisms such as SSH and NX API to interact with Cisco switches. Ansible modules perform the required actions while playbooks define the desired automation sequence. The agentless model can simplify deployment because network administrators do not have to maintain additional resident software on every managed switch. This is one reason Ansible is commonly considered for network configuration management and orchestration.

Question 148. What do Ansible modules do

  1. Create physical switch ports
  2. Replace Nexus hardware
  3. Perform automation actions on managed nodes
  4. Assign GPU memory

Correct Answer: 3. Perform automation actions on managed nodes

Explanation:

Ansible modules are small programs that perform specific automation operations against managed devices or systems. Cisco explains that Ansible modules make API calls to managed nodes and apply configuration defined in playbooks. NX OS supported modules can automate network configuration tasks without requiring administrators to build every API interaction manually. Modules therefore provide reusable building blocks for automation workflows. A playbook can call several modules in sequence to create a complete deployment or operational procedure. This modular design improves repeatability and can reduce manual configuration errors when managing many data center switches.

Question 149. What principle is strongly associated with Terraform

  1. Infrastructure as Code
  2. Manual configuration only
  3. Fibre Channel zoning only
  4. Local console management

Correct Answer: 1. Infrastructure as Code

Explanation:

Terraform is strongly associated with Infrastructure as Code, where infrastructure configuration is represented in machine readable files and managed through repeatable workflows. Cisco provides Terraform integration for parts of its data center portfolio, including Nexus Dashboard related solutions. Infrastructure as Code allows teams to review, version, automate, and reproduce network configuration using development style practices. This can improve consistency compared with manually configuring devices individually. The current 300 610 blueprint specifically includes Terraform CLI among the automation technologies candidates should evaluate when selecting approaches for data center network orchestration and automated deployment.

Question 150. Which Cisco platform provides a central console for multiple data center sites

  1. CIMC only
  2. UCS VIC
  3. MDS line card
  4. Nexus Dashboard

Correct Answer: 4. Nexus Dashboard

Explanation:

Cisco Nexus Dashboard provides a centralized platform for operating and managing services across multiple data center sites. Cisco describes it as a common platform for applications such as Nexus Dashboard Fabric Controller, Insights, and Orchestrator. This centralized model helps network teams automate configuration, monitor fabrics, and coordinate operations across distributed environments. The current DCID blueprint specifically calls out centralized management and monitoring such as Nexus Dashboard as a network design objective. Designers should consider management resiliency, site connectivity, automation requirements, and operational scale when deciding how Nexus Dashboard fits into the broader data center architecture.

Question 151. What does an Intersight Cloud Orchestrator workflow contain

  1. Only physical cables
  2. Tasks that perform automation actions
  3. Fibre Channel frames only
  4. GPU firmware only

Correct Answer: 2. Tasks that perform automation actions

Explanation:

An Intersight Cloud Orchestrator workflow is built from tasks that perform individual automation actions. Cisco provides a catalog containing tasks for areas such as virtualization, storage, compute, and infrastructure operations. Tasks can accept inputs, perform an action against a supported target, and generate outputs that later workflow steps can use. Combining tasks into workflows allows administrators to automate processes that otherwise require several manual actions across different systems. Cisco includes Intersight Cloud Orchestrator workflows in the current 300 610 blueprint as an important compute and infrastructure automation design topic.

Question 152. What can one Intersight workflow task pass to a later task

  1. Physical rack units
  2. Fibre Channel light levels
  3. Output values
  4. Power cables

Correct Answer: 3. Output values

Explanation:

Tasks in an Intersight Cloud Orchestrator workflow can generate output values that can be consumed by later workflow steps. Cisco task definitions describe both the inputs required before execution and the outputs created after successful completion. This makes it possible to build multi step automation in which one action discovers or creates information and another action uses that result. For example, a workflow task can operate on a host or storage object and provide resulting object information to the next task. Passing structured data between steps reduces manual intervention and supports more sophisticated end to end orchestration.

Question 153. Which UCS power control priority has the highest priority

  1. Priority 10
  2. Priority 5
  3. No priority exists
  4. Priority 1

Correct Answer: 4. Priority 1

Explanation:

Cisco UCS power control priorities use a scale from 1 through 10, where priority 1 represents the highest standard priority and priority 10 represents the lowest. When power becomes constrained, service profiles with higher priority can receive preference over profiles with lower priority. This allows organizations to protect critical workloads when chassis power availability becomes limited. The priority is considered together with server type and configuration when UCS calculates initial power allocation. Cisco also provides a special no cap option for workloads that require maximum available power rather than ordinary priority based allocation.

Question 154. What is the default UCS power control priority

  1. Priority 5
  2. Priority 1
  3. Priority 10
  4. Priority 2

Correct Answer: 1. Priority 5

Explanation:

Cisco UCS uses priority 5 as the default power control policy priority. The supported normal priority range runs from 1 through 10, with lower numbers indicating higher priority. If available power becomes constrained and all blades are active, higher priority service profiles can receive preference over lower priority profiles. The power control policy must be included in a service profile and that profile must be associated with a server before the policy affects power allocation. The default middle priority provides a neutral starting point until administrators identify workloads requiring stronger or weaker power preference.

Question 155. What does the UCS no cap power priority provide

  1. Minimum possible power
  2. No server power at all
  3. Maximum possible power for that server type
  4. Power only during boot

Correct Answer: 3. Maximum possible power for that server type

Explanation:

Cisco UCS provides a special no cap power control option for mission critical workloads. When no cap is selected, the server is allocated the maximum amount of power possible for that type of server rather than participating normally in priority based power sharing. This can be useful when performance requirements are more important than power oversubscription efficiency. Cisco notes that administrators should use this option selectively because reserving maximum power for a server reduces the flexibility available to redistribute power among other chassis resources. Normal deployments usually rely on priorities from 1 through 10 instead.

Question 156. Which UCS power allocation method is recommended as the default

  1. Manual blade cap
  2. Policy driven chassis group cap
  3. No power management
  4. Static PSU shutdown

Correct Answer: 2. Policy driven chassis group cap

Explanation:

Cisco recommends policy driven chassis group power capping as the default power allocation method. This approach divides available power among chassis in a power group and then allocates each chassis power among its blade servers according to configured priorities. The system can dynamically redistribute available power when service profiles are associated or disassociated and when workload requirements change. Policy driven power capping provides a more automated approach than manually defining a fixed power cap for every individual blade. It can also support controlled power oversubscription while protecting data center electrical infrastructure from excessive demand.

Question 157. What does Dynamic Power Rebalancing do on supported UCS chassis

  1. Changes VSAN IDs
  2. Creates server UUIDs
  3. Changes VXLAN routes
  4. Reallocates available chassis power dynamically

Correct Answer: 4. Reallocates available chassis power dynamically

Explanation:

Dynamic Power Rebalancing allows supported UCS chassis to dynamically redistribute available power across components such as servers, fans, Intelligent Fabric Modules, and other chassis resources. Cisco includes this option in Intersight chassis power policies for supported platforms such as the UCS X9508. Dynamic rebalancing helps the system respond to changing power demand instead of relying only on a static allocation model. Data center designers should still ensure that the physical power feeds and redundancy design provide enough total capacity for the expected workload because software based rebalancing cannot create power beyond what the electrical infrastructure supplies.

Question 158. What does Extended Power Capacity use on a supported UCS X9508

  1. GPU memory
  2. Spare switch ports
  3. Reserved power from redundant PSUs
  4. Fibre Channel bandwidth

Correct Answer: 3. Reserved power from redundant PSUs

Explanation:

Extended Power Capacity allows a supported UCS X9508 chassis to make additional power available by borrowing from capacity that would normally be reserved for power supply redundancy. Cisco notes that enabling this feature increases the amount of power the chassis can use, but it also changes the practical redundancy margin available during failures. Designers should therefore evaluate the availability tradeoff carefully before enabling it. Extended Power Capacity can be useful when workloads temporarily require additional chassis power, but the physical power design and organizational resiliency requirements should determine whether using redundant capacity is acceptable.

Question 159. What does a chassis power allocation value of zero mean in the documented Intersight policy

  1. Use all available power according to redundancy mode
  2. Shut down the chassis
  3. Limit power to one watt
  4. Disable all PSUs

Correct Answer: 1. Use all available power according to redundancy mode

Explanation:

Cisco documentation states that setting Power Allocation to zero in the supported Intersight chassis power policy allows the chassis to use all available power according to the configured power redundancy mode. A nonzero value can instead define an explicit maximum amount of power the chassis may consume. This gives designers the choice between allowing the chassis to use its available capacity or applying a specific power ceiling. Power allocation should be coordinated with rack power limits, redundant feed capacity, cooling, and workload demands so that the compute design remains within facility constraints.

Question 160. How does policy driven power capping distribute power inside a chassis

  1. Randomly among blades
  2. Only to the first server
  3. According to blade priority
  4. According to MAC address

Correct Answer: 3. According to blade priority

Explanation:

Policy driven chassis group power capping first allocates available power at the chassis group level and then distributes the power assigned to each chassis among blade servers according to power control priority. Cisco recalculates allocations when service profiles are associated or disassociated and can move power from lower priority workloads toward higher priority workloads when necessary. Active blades can also borrow unused power from idle blades during normal operation. This approach lets organizations safely oversubscribe some electrical capacity while still giving critical workloads preference when total demand approaches the configured power limit.