Question
Which component is responsible for creating and maintaining the secure DTLS/TLS connection on the vSmart controller?
A. vdaemon
B. OMP
C. SNMP
D. NETCONF
Answer
A. vdaemon
Explanation 1
The component responsible for creating and maintaining the secure DTLS/TLS connection on the vSmart controller is vdaemon. The vdaemon is a process that runs on the vSmart controller and is responsible for establishing secure connections between the vSmart controller and other components in the Cisco SD-WAN solution. It uses DTLS/TLS to secure communication between the vSmart controller and other components.
Explanation 2
A. vdaemon
The vdaemon component is responsible for creating and maintaining the secure DTLS/TLS connection on the vSmart controller. DTLS (Datagram Transport Layer Security) and TLS (Transport Layer Security) are cryptographic protocols that provide secure communication for data transmission. In the Cisco SD-WAN architecture, these protocols are used to establish secure connections between the vSmart controller and other elements in the SD-WAN fabric, such as vEdge routers and vBond orchestrators.
The vdaemon component on the vSmart controller handles the process of creating and maintaining these secure connections. It does this by managing the exchange of cryptographic keys and certificates between the vSmart controller and other elements in the SD-WAN fabric. This process helps to ensure that all communication between these elements is encrypted and protected from unauthorized access.
The other components mentioned in the question are not responsible for creating and maintaining secure DTLS/TLS connections on the vSmart controller:
B. OMP (Overlay Management Protocol) is a protocol used by the Cisco SD-WAN solution to exchange control plane information, such as routes and policies, between vSmart controllers and vEdge routers.
C. SNMP (Simple Network Management Protocol) is a protocol used to manage and monitor network devices, but it is not responsible for creating and maintaining secure DTLS/TLS connections.
D. NETCONF (Network Configuration Protocol) is a protocol used to manage the configuration of network devices, but it is not responsible for creating and maintaining secure DTLS/TLS connections.
Explanation 3
The component responsible for creating and maintaining the secure DTLS/TLS connection on the vSmart controller is vdaemon. It is a Cisco SD-WAN daemon running on each vSmart controller and router that creates and maintains the secure DTLS or TLS connections between the devices.
Explanation 4
The correct answer is B. OMP.
OMP stands for Orchestrated Management Plane. It is a Cisco SD-WAN component that is responsible for creating and maintaining the secure DTLS/TLS connection between the vSmart controller and the vEdge routers. OMP uses DTLS/TLS to encrypt all traffic between the vSmart controller and the vEdge routers, which helps to protect the confidentiality and integrity of the traffic.
The other options are incorrect.
- vdaemon is a Cisco SD-WAN component that is responsible for managing the vSmart controller. It does not create or maintain the secure DTLS/TLS connection between the vSmart controller and the vEdge routers.
- SNMP and NETCONF are both network management protocols that can be used to manage Cisco SD-WAN devices. However, they do not create or maintain the secure DTLS/TLS connection between the vSmart controller and the vEdge routers.
Here are some additional details about OMP:
- OMP uses DTLS/TLS to encrypt all traffic between the vSmart controller and the vEdge routers.
- OMP uses a pre-shared key (PSK) to authenticate the vSmart controller and the vEdge routers.
- OMP uses a certificate to verify the identity of the vSmart controller and the vEdge routers.
OMP is an important component of Cisco SD-WAN because it helps to protect the confidentiality and integrity of the traffic between the vSmart controller and the vEdge routers. This helps to ensure that the SD-WAN solution is secure and reliable.
Explanation 5
The question you asked is about the component that is responsible for creating and maintaining the secure DTLS/TLS connection on the vSmart controller. The vSmart controller is a software-based component that acts as the centralized policy engine and orchestrator for the Cisco SD-WAN overlay network. It communicates with vEdge routers using OMP (Overlay Management Protocol) over secure DTLS/TLS tunnels.
The component that is responsible for creating and maintaining the secure DTLS/TLS connection on the vSmart controller is A. vdaemon. Vdaemon is a process that runs on every Cisco SD-WAN device (vEdge router, vSmart controller, vManage NMS, and vBond orchestrator) and handles the authentication and encryption of control plane traffic. Vdaemon uses certificates to establish trust among devices and creates DTLS/TLS tunnels to protect OMP messages. Vdaemon also monitors the health and status of the DTLS/TLS tunnels and performs periodic rekeying.
The other options are not correct because:
B. OMP: This is a protocol that runs on top of DTLS/TLS tunnels and exchanges routing, policy, and management information among Cisco SD-WAN devices. OMP does not create or maintain the DTLS/TLS tunnels itself.
C. SNMP: This is a protocol that is used for network monitoring and management purposes. SNMP does not create or maintain the DTLS/TLS tunnels on the vSmart controller.
D. NETCONF: This is a protocol that is used for network configuration and automation purposes. NETCONF does not create or maintain the DTLS/TLS tunnels on the vSmart controller.
Explanation 6
A. vdaemon
The vdaemon component is responsible for creating and maintaining the secure DTLS/TLS connection on the vSmart controller.
In a Cisco SD-WAN environment, the vSmart controller plays a critical role in maintaining secure communications between various network components, such as the vBond orchestrator, vEdge routers, and vManage NMS. The vSmart controller uses secure DTLS/TLS connections to ensure the confidentiality and integrity of the control plane communication.
The vdaemon component is responsible for managing these secure connections on the vSmart controller. It handles the establishment, maintenance, and termination of DTLS/TLS connections, ensuring secure communication between the vSmart controller and other components in the SD-WAN environment.
In addition to its role in managing secure connections, the vdaemon also handles the authentication process for the vSmart controller. It ensures that only authorized components can establish secure connections and participate in the SD-WAN network.
In summary, the vdaemon component is essential for the secure operation of a Cisco SD-WAN environment, as it manages the secure DTLS/TLS connections on the vSmart controller and ensures proper authentication of the connected components.
Explanation 7
The component responsible for creating and maintaining the secure DTLS/TLS (Datagram Transport Layer Security/Transport Layer Security) connection on the vSmart controller in Cisco SD-WAN is:
A. vdaemon.
In Cisco SD-WAN, the vSmart controller is a key component that provides centralized control and management of the SD-WAN network. The vdaemon (also known as the vSmart Daemon) is responsible for establishing and maintaining secure communication channels with other components in the SD-WAN fabric, including other vSmart controllers, vEdge routers, and vBond orchestrators.
The vdaemon uses the DTLS/TLS protocol to secure the control plane communication between the various components. DTLS is used for UDP-based transport, while TLS is used for TCP-based transport. Both protocols provide encryption and authentication to ensure the confidentiality and integrity of the control plane messages.
By using DTLS/TLS, the vdaemon on the vSmart controller creates and maintains secure connections with other SD-WAN components, enabling secure control plane communication throughout the network. These secure connections ensure that control plane messages exchanged between components are protected from eavesdropping, tampering, and other security threats.
To summarize, the vdaemon component on the vSmart controller is responsible for establishing and maintaining the secure DTLS/TLS connection, which ensures the confidentiality and integrity of control plane communication in Cisco SD-WAN.
Explanation 8
The correct answer is B. OMP.
OMP stands for Orchestrator Management Protocol. It is a secure protocol that is used to manage and configure the vSmart controller. OMP uses DTLS/TLS to encrypt all communication between the vSmart controller and the vEdge routers.
The other options are incorrect.
- vdaemon is a daemon that runs on the vSmart controller. It is responsible for managing the vSmart controller’s resources.
- SNMP is a network management protocol that can be used to manage the vSmart controller. However, SNMP does not use DTLS/TLS to encrypt communication.
- NETCONF is a network configuration protocol that can be used to configure the vSmart controller. However, NETCONF does not use DTLS/TLS to encrypt communication.
Here are some additional details about OMP:
- OMP is a bi-directional protocol. This means that the vSmart controller and the vEdge routers can communicate with each other using OMP.
- OMP is a secure protocol. It uses DTLS/TLS to encrypt all communication between the vSmart controller and the vEdge routers.
- OMP is a lightweight protocol. It does not add a significant amount of overhead to the vSmart controller or the vEdge routers.
OMP is a critical component of the Cisco SD-WAN solution. It allows the vSmart controller to manage and configure the vEdge routers in a secure and efficient manner.
Explanation 9
Answer: A. vdaemon
The vdaemon component is responsible for creating and maintaining the secure DTLS/TLS connection on the vSmart controller. The vdaemon component runs on each Cisco SD-WAN device and performs the following functions:
- Establishes secure DTLS/TLS connections with other Cisco SD-WAN devices in the overlay network
- Authenticates Cisco SD-WAN devices using certificates
- Exchanges routing, policy, and management information with other Cisco SD-WAN devices using OMP
- Enforces policies received from the vSmart controller on the local device
The vdaemon component is not the same as OMP, SNMP, or NETCONF. OMP is the routing protocol used by Cisco SD-WAN devices to exchange routing, policy, and management information. SNMP is a protocol used to monitor and manage network devices. NETCONF is a protocol used to configure network devices using XML or JSON data models.
Explanation 10
The correct answer is *B. OMP.
OMP, or Orchestration Management Protocol, is responsible for creating and maintaining the secure DTLS/TLS connection on the vSmart controller. OMP uses DTLS/TLS to encrypt all communication between the vSmart controller and the vEdge routers. This ensures that all control traffic is secure and cannot be intercepted by unauthorized parties.
The other options are incorrect.
- vdaemon is a daemon that runs on the vSmart controller. It is responsible for managing the vSmart controller’s resources, such as memory and CPU.
- SNMP is a network management protocol that can be used to monitor and configure network devices. SNMP does not use DTLS/TLS to encrypt communication, so it is not secure enough to be used for control traffic.
- NETCONF is a network configuration protocol that can be used to configure network devices. NETCONF does not use DTLS/TLS to encrypt communication, so it is not secure enough to be used for control traffic.
Reference
- 300-415 ENSDWI – Cisco
- Implementing Cisco SD-WAN Solutions (ENSDWI) – Cisco
- ENSDWI Exam Overview (cisco.com)
- Cisco SD-WAN Security Configuration Guide, Cisco IOS XE Release 17.x – Security Overview [Cisco SD-WAN] – Cisco
- Security Configuration Guide, Cisco IOS XE SD-WAN Releases 16.11, 16.12 – Security Overview [Cisco SD-WAN] – Cisco
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