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Cisco CCNA (Exam 200-301) > Volume 2 - Chapter 21: Introduction to Controller-Based Networking > Flashcards

Volume 2 - Chapter 21: Introduction to Controller-Based Networking Flashcards

1
Q

A networking device that receiving data, processing it, and forwarding that same data is an example of a ____ ____ function?

A

Data Plane.

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2
Q

The data plane is sometimes also refered to as?

A

The forwarding plane.

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3
Q

An action that controls the data plane is refered to as a ____ ____ function.

A

Control Plane.

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4
Q

The areas marked as red and orange indicate in the diagram below?

A

Green: Control Plane Functions
Orange: Data Plane Functions

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5
Q

An action that is used to manage the network device is refered to as a ____ ____ function.

A

Management Plane

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6
Q

What type of function is described by the example below?

De-encapsulating and re-encapsulating a packet in a data-link frame (routers, Layer 3 switches)

A

Data Plane

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7
Q

What type of function is described by the example below?

IPv4 ARP Request/Reply Messages

A

Control Plane

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8
Q

What type of function is described by the example below?

Discarding a message due to a filter (access control lists [ACLs], port security)

A

Data Plane

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9
Q

What type of function is described by the example below?

Sending device logs to an external Syslog server

A

Management Plane

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10
Q

What type of function is described by the example below?

IPv6 Neighbor Discovery Protocol (NDP)

A

Control Plane

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11
Q

What type of function is described by the example below?

Adding or removing an 802.1Q trunking header (routers and switches)

A

Data Plane

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12
Q

What type of function is described by the example below?

Encrypting the data and adding a new IP header (for virtual private network [VPN] processing)

A

Data Plane

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13
Q

What type of function is described by the example below?

Reading a device’s statistics using SNMP

A

Management Plane

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14
Q

What type of function is described by the example below?

A Switch learning and adding MAC addresses into its MAC address table

A

Control Plane

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15
Q

What type of function is described by the example below?

Routing protocols such as OSPF, EIGRP, RIP, BGP, etc…

A

Control Plane

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16
Q

What type of function is described by the example below?

Issuing commands to a switch using SSH

A

Management Plane

17
Q

What type of function is described by the example below?

Matching an IP packet’s destination IP address to the IP routing table (routers, Layer 3 switches)

A

Data Plane

18
Q

What type of function is described by the example below?

Changing the source or destination IP address (for Network Address Translation [NAT] processing)

A

Data Plane

19
Q

What type of function is described by the example below?

Spanning-Tree Protocol

A

Control Plane

20
Q

What type of function is described by the example below?

Matching an Ethernet frame’s destination Media Access Control (MAC) address to the MAC address table (Layer 2 switches)

A

Data Plane

21
Q

What term best describes the following?

A chip built for specific purposes, such as for message processing in a networking device.

A

An ASIC chip (Application-Specific Integrated Circuit)

22
Q

Describe the purpose of the Ternary Content-Addressable Memory (TCAM)

A

To store a switches MAC address table.

23
Q

Where are most control plane management functions processed?

A

In IOS which utilizes a device’s CPU and RAM

24
Q

The data plane function (and the control plane function of MAC learning) are processed in the ____.

A

ASIC

25
Q

Describe the function of a distributed control plane function.

A

A distributed control plane function is a function that resides on each individual device. Where each device is capable of exchanging messages.

For example: OSPF, STP, EIGRP, etc….

26
Q

Describe the function of a centralized control plane function.

A

A centralized control plane function is a function that is centrally managed by a controller. The devices that are managed by a centralized controller do not have their own control plane.

27
Q

Describe the purpose of the southbound interface in regards to centralized control planes.

A

The southbound interface (SBI) is the interface used by the controller to manage the networking devices.

28
Q

What term best describes the following?

A method for one application (program) to exchange data with another application.

A

An Application Programming Interface (API).

29
Q

Describe the purpose of the northbound interface in regards to centralized control planes.

A

A NBI opens the controller so its data and functions can be used by other programs.

For example, using an API to send commands to a controller.

30
Q

Describe the purpose of a REST API.

A

A REST API (REpresentational State Transfer) is a type of API that allows applications residing on different hosts to exchange information over a networking using HTTP

31
Q

OpenDaylight Controller and Cisco Application Centric Infrastructure (ACI) are both examples of?

A

Software Defined Networking (SDN).

32
Q

What type of topology is used by Cisco ACI?

A

Spine & Leaf

33
Q

Describe how the physical topology functions in Cisco ACI for spine switches, leaf switches, and endpoints.

A
  • Each leaf switch must connect to every spine switch.
  • Each spine switch must connect to every leaf switch.
  • Leaf switches cannot connect to each other.
  • Spine switches cannot connect to each other.
  • Endpoints connect only to the leaf switches.
34
Q

Describe the purpose of the Cisco Application Policy Infrastructure Controller (APIC)

A

The APIC serves as the centralized controller for Cisco ACI.

35
Q

What are the three typical separate servers that make up a web application?

A
  • Web Server
  • Application Server
  • Database Server
36
Q

Describe the function of intent-based networking (IBN).

A

A model of networking where policies are define to determine which endpoints can communicate with each other.

37
Q

Describe the function of an Endpoint Group (EPG)

A

A EPG is a group of endpoints. The APIC will then create policies and push them to the network to restrict what EPGs can communicate with each other.

Cisco CCNA (Exam 200-301) (52 decks)

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