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What is the purpose of a southbound API in a controller-based networking architecture?
Answer: D
This may sound fairly obvious so if does just ignore it. So when thinking of south-bound api's think going down the OSI model towards the network part. North-bound is going up the stack towards the applications
Source: Adapted from community discussion — Tre9173
DRAG DROP - Drag and drop the statements about device management from the left onto the corresponding types on the right.
This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.
Answer: See figure below
I think reduce the workload for enterprise customers and Supports SDA should be switched. Correct me if I am wrong please.
Source: Adapted from community discussion — sdmejia01
Which two northbound APIs are found in a software-defined network? (Choose two.)
Answer: AC
A. REST (Representational State Transfer) D. NETCONF (Network Configuration Protocol) REST is a widely used architectural style for designing networked applications, and it is commonly used as a northbound API in SDN environments. It provides a simple and lightweight approach for application developers to interact with the SDN controller. NETCONF is a network management protocol that allows for the configuration and management of network devices. It is often used as a northbound API in SDN to provide a standardized interface for applications to configure and control network elements. OpenFlow, SOAP, and OpFlex are not typically categorized as northbound APIs. OpenFlow is a southbound API that allows communication between the SDN controller and network switches. SOAP (Simple Object Access Protocol) is a protocol for exchanging structured information in web services and is not specific to SDN. OpFlex is a southbound protocol used in Cisco's Application Centric Infrastructure (ACI) and is not a widely adopted northbound API in the general SDN ecosystem.
Source: Adapted from community discussion — HM01
Refer to the exhibit. An engineer is configuring the HO router. Which IPv6 address configuration must be applied to the router fa0/1 interface for the router to assign a unique 64-bit IPv6 address to itself?
Answer: C
LETTER C IS THE CORRECT ANSWER although IPv6 SLAAC (EUI-64) process is missing: 48 bit MAC Address = C6-01-420F:0007 split address in the middle = C6-01-42 0F-00-07 insert FF:FE = C6-01-42-FF:FE-0F-00-07 hexadecimal = C"6"-01-42-FF:FE-0F-00-07 7th bit in binary = 6 = 0000 0110 7th bit flip changes 6 to 4 = 0000 0100 64 bit host interface ID = C401:42FF:FE0F:0007 LETTER C IS THE CORRECT ANSWER so, ipv6 address 2001:DB8:0:1:C601.42FF:FE0F:7 /64
Source: Adapted from community discussion — coralreef
Which function generally performed by a traditional network device is replaced by a software-defined controller?
Answer: A
In some cases, both the data plane and control plane can be used to implement encryption and decryption for VPN link processing. Overall, the building of route tables and updating of forwarding tables are important functions in an SDN architecture, and are typically handled by the controller in the control plane. This allows for more efficient and flexible management of the network, and can enable a wide range of network automation and optimization techniques.
Source: Adapted from community discussion — mageknight
What describes a northbound REST API for SDN?
Answer: C
When is the PUT method used within HTTP?
Answer: A
Please correct. "Standard REST methods are supported on the API, which includes POST, GET, PUT, and DELETE operations through HTTP. The PUT methods are idempotent, meaning that there is no additional effect if they are called more than once with the same input parameters. The GET method is nullipotent, meaning that it can be called zero or more times without making any changes (or that it is a read-only operation)." https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/aci_multi-site/sw/1x/rest_api_config/b_Cisco_ACI_Multi-Site_REST_Configuration_Guide/b_Cisco_ACI_Multi-Site_REST_Config_Guide_chapter_01.pdf
Source: Adapted from community discussion — oatmealturkey
Which two HTTP methods are suitable for actions performed by REST-based APIs? (Choose two.)
Answer: CD
What is the advantage of separating the control plane from the data plane within an SDN network?
Answer: C
C is best answer. Overall, separating the control plane from the data plane within an SDN network provides greater control, flexibility, scalability, and security, making it an ideal solution for large, complex, and dynamic networks.
Source: Adapted from community discussion — Ciscoman021
Refer to the exhibit. What is missing from this output for it to be executed?
Answer: D
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