- Home
- Networking
- CCNA Routing and Switching 200-125
126.
What is an application program interface (API)?
- A.An API is a program that allows for data transfer.
- B.An API is a programming language for network programmability.
- C.An API is a programming interface or standard allowing one program to communicate with another program.
- D.An API allows for programs to be virtualized.
- Answer & Explanation
- Report
Answer : [A]
Explanation :
Explanation :
| The data plane is responsible for switching and routing data. Any data that isdestined for endpoints is switched or routed on the data plane. For example, when one computer pings another, the ping is switched and routed on the data plane |
127.
Which is used for communication directly to the SDN devices in the network?
- A.The northbound interface (NBI)
- B.The southbound interface (SBI)
- C.The core of the controller
- D.Applications hosted on the controller
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
| An application program interface (API) is a method the programmer has created to allow other programs to communicate with their program. The inter- programmability is required when another program wants to share data with the API. |
128.
Which statement is correct about the software-defined network (SDN) controller?
- A.The SDN controller configures the management plane of network devices.
- B.The SDN controller monitors data plane traffic.
- C.The SDN controller replaces the control plane of the SDN.
- D.The SDN controller complements the control plane of the SDN.
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
| The software-defined network (SDN) controller replaces the control plane on SDN devices. The SDN devices in the network do not contain a control plane locally and instead are controlled by the SDN controller. |
129.
Which network plane is used by syslog for delivering messages from the router or
switch?
- A.Data plane
- B.Control plane
- C.Management plane
- D.Switch plane
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
| The management plane is any mechanism that helps in the management of a router or switch. Some of the common mechanisms are SSH and Telnet. However, any mechanism that the router uses for management is considered part of the management plane. |
130.
Which network plane is used for Spanning Tree Protocol (STP)?
- A.Data plane
- B.Control plane
- C.Management plane
- D.Switch plane
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
| The control plane refers to any mechanism that controls the data plane. Spanning Tree Protocol (STP) is used to control the data plane by removing redundant links. |
|
|
||||||||||||||||||||||||||||
