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Free Cisco 200-301 Practice Questions 2026 | Cisco Certified Network Associate


Topic 2, Exam B

Refer to Exhibit.

Which action do the switches take on the trunk link?

A. The trunk does not form and the ports go into an err-disabled status.

B. The trunk forms but the mismatched native VLANs are merged into a single broadcast domain.

C. The trunk does not form, but VLAN 99 and VLAN 999 are allowed to traverse the link.

D. The trunk forms but VLAN 99 and VLAN 999 are in a shutdown state.

B.   The trunk forms but the mismatched native VLANs are merged into a single broadcast domain.

Explanation:

The trunk still forms with mismatched native VLANs and the traffic can actually flow between mismatched switches. But it is absolutely necessary that the native VLANs on both ends of a trunk link match; otherwise a native VLAN mismatch occurs, causing the two VLANs to effectively merge. For example with the above configuration, SW1 would send untagged frames for VLAN 999. SW2 receives them but would think they are for VLAN 99 so we can say these two VLANs are merged

Which 802.11 frame type is indicated by a probe response after a client sends a probe request?

A. action

B. management

C. control

D. data

B.   management

What are two recommendations for protecting network ports from being exploited when located in an office space outside of an IT closer? (Choose two.)

A. enable the PortFast feature on ports

B. implement port-based authentication

C. configure static ARP entries

D. configure ports to a fixed speed

E. shut down unused ports

B.   implement port-based authentication
E.   shut down unused ports

Refer to the exhibit.

Refer to the exhibit.

What is the purpose of an SSID?

A. It provides network security

B. It differentiates traffic entering access posits

C. It identities an individual access point on a WLAN

D. It identifies a WLAN

D.   It identifies a WLAN

Explanation:

“In IEEE 802.11 wireless local area networking standards (including Wi-Fi), a service set is a group of wireless network devices which share a service set identifier (SSID)… A service set forms a logical network of nodes operating with shared link-layer networking parameters; they form one logical network segment.

Which type of API allows SDN controllers to dynamically make changes to the network?

A. northbound API

B. REST API

C. SOAP API

D. southbound API

D.   southbound API

Explanation:

Cisco overview doc for SDN here: https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Data_Center/VMDC/SDN/SDN. html

What does an SDN controller use as a communication protocol to relay forwarding changes to a southbound API?

A. OpenFlow

B. Java

C. REST

D. XML

A.   OpenFlow

How does the dynamically-learned MAC address feature function?

A. The CAM table is empty until ingress traffic arrives at each port

B. Switches dynamically learn MAC addresses of each connecting CAM table.

C. The ports are restricted and learn up to a maximum of 10 dynamically-learned addresses

D. It requires a minimum number of secure MAC addresses to be filled dynamically

A.   The CAM table is empty until ingress traffic arrives at each port

What are two characteristics of a controller-based network? (Choose two)

A. The administrator can make configuration updates from the CLI

B. It uses northbound and southbound APIs to communicate between architectural layers

C. It moves the control plane to a central point.

D. It decentralizes the control plane, which allows each device to make its own forwarding decisions

E. It uses Telnet to report system issues.

B.   It uses northbound and southbound APIs to communicate between architectural layers
C.   It moves the control plane to a central point.

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