Wireless

Question 1

What is the purpose of the ‘Content-Type’ REST header?

Answer 1

Specify the format of data in the body (e.g., application/json)

Question 2

What is the purpose of the ‘Accept’ REST header?

Answer 2

Specify the request format for returned data (e.g., application/json)

Question 3

What is the purpose of the ‘Authorize’ REST header?

Answer 3

Provide credentials to authorize the request

Question 4

What is the purpose of the ‘Date’ REST header?

Answer 4

Specify the date and time of the message

Question 5

What does using HTTPS instead of HTTP provide in REST API?

Answer 5

Encryption of data

Question 6

What does ‘None’ mean as an authentication type in REST APIs?

Answer 6

API is public and anybody can use it

Question 7

What is ‘Basic HTTP’ authentication in REST APIs?

Answer 7

Username and Password are passed in an encoded string

Question 8

What is ‘Token’ authentication in REST APIs?

Answer 8

A static secret generated and retrieved from the API developer portal

Question 9

What is ‘OAuth’ authentication in REST APIs?

Answer 9

A dynamic method of retrieving and using tokens from an identity provider

Question 10

What are the principles of Cisco DNA?

Answer 10

Policy, Security, Automation, Analytics, Open platform, Cloud, Physical and Virtual Infrastructure

Question 11

What are the benefits of Cisco DNA?

Answer 11

IT agility and scale, Reduced risk, Improved user experience, Investment protection

Question 12

What HTTP verb is used to read data from a REST API?

Answer 12

GET

Question 13

What HTTP verb is used to create new data in a REST API?

Answer 13

POST

Question 14

What HTTP verb is used to update or modify data in a REST API?

Answer 14

PUT

Question 15

What HTTP verb is used to delete data in a REST API?

Answer 15

DELETE

Question 16

How does a traditional network manage control and management planes?

Answer 16

Distributed control and management plane

Question 17

How does a controller-based (SDN) network manage control and management planes?

Answer 17

Centralized control and management plane

Question 18

How are resources provisioned in traditional networks?

Answer 18

Distributed fashion

Question 19

How are resources provisioned in SDN-based networks?

Answer 19

From a centralized location

Question 20

How is software managed in traditional networks?

Answer 20

Individually per device

Question 21

How is software managed in SDN-based networks?

Answer 21

Centralized software management with templates

Question 22

What kind of access is typical in traditional network management?

Answer 22

SSH or Telnet

Question 23

What are security characteristics of traditional networks?

Answer 23

Decentralized and managed at distribution/perimeter

Question 24

What are security characteristics of SDN-based networks?

Answer 24

Centralized security with policies

Question 25

What are key SDN benefits over traditional networks?

Answer 25

Flexibility, API integration, cloud updates, and network-wide view

Question 26

What does section 6.1 cover in the CCNA Automation & Programmability topic?

Answer 26

How automation impacts network management

Question 27

What does section 6.2 cover in the CCNA Automation & Programmability topic?

Answer 27

Comparison of traditional and controller-based networking

Question 28

What does section 6.3 cover in the CCNA Automation & Programmability topic?

Answer 28

Software-defined architecture, control vs data plane, APIs

Question 29

What does section 6.4 cover in the CCNA Automation & Programmability topic?

Answer 29

AI (generative/predictive) and machine learning in networking

Question 30

What does section 6.5 cover in the CCNA Automation & Programmability topic?

Answer 30

REST-based APIs (auth types, CRUD, HTTP verbs, encoding)

Question 31

What does section 6.6 cover in the CCNA Automation & Programmability topic?

Answer 31

Capabilities of config mgmt tools like Ansible and Terraform

Question 32

What does section 6.7 cover in the CCNA Automation & Programmability topic?

Answer 32

JSON-encoded data components

Question 33

What is an Autonomous AP?

Answer 33

A standalone access point.

Question 34

What is FlexConnect?

Answer 34

Traffic is distributed at the access point.

Question 35

What is Centralized wireless architecture?

Answer 35

Traffic is centralized at the wireless controller.

Question 36

What is Converged wireless architecture?

Answer 36

Traffic is distributed at the switch.

Question 37

What is Band Selection (Cisco) or Band Steering (Meraki)?

Answer 37

A method to push clients to the 5GHz band for better performance.

Question 38

What encryption is used in WPA?

Answer 38

TKIP + RC4 with 128-bit keys.

Question 39

What authentication is used in WPA?

Answer 39

MIC algorithm.

Question 40

What key management is used in WPA?

Answer 40

4-way handshake.

Question 41

What encryption is used in WPA2?

Answer 41

TKIP or CCMP/AES (128-bit keys).

Question 42

What authentication is used in WPA2?

Answer 42

CBC-MAC/AES.

Question 43

What key management is used in WPA2?

Answer 43

4-way handshake.

Question 44

What encryption is used in WPA3?

Answer 44

GCMP-256.

Question 45

What key sizes are used in WPA3?

Answer 45

128-bit in personal mode, 192-bit in enterprise mode.

Question 46

What authentication is used in WPA3?

Answer 46

BIP-GMAC-256.

Question 47

What key management is used in WPA3?

Answer 47

ECDH and ECDSA.

Question 48

What is a key security feature of WPA3?

Answer 48

Perfect forward secrecy.

Question 49

What is the purpose of the WLC Service Interface?

Answer 49

Used for out-of-band management and system recovery.

Question 50

What is the Console Port Interface on a WLC?

Answer 50

Used for CLI access via serial connection.

Question 51

How many interfaces can a WLC support?

Answer 51

Up to 512 interfaces.

Question 52

What are some examples of WLC interfaces?

Answer 52

Management Interface, AP-Manager Interface, Virtual Interface, VLANs.

Question 53

What is the relationship between SSIDs and interfaces in a WLC?

Answer 53

Interfaces are mapped to SSIDs to form WLANs.

Question 54

How many SSIDs can a WLC support?

Answer 54

Up to 512 SSIDs.