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Cisco 200-301 Bundle

Exam Code: 200-301

Exam Name Cisco Certified Network Associate (CCNA)

Certification Provider: Cisco

Corresponding Certification: CCNA

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Cisco 200-301 Practice Test 23

Question 220

A basic centrally switched lightweight AP uses a single untagged management VLAN on a switch uplink, and all WLAN client traffic is CAPWAP-encapsulated to the controller. What switchport approach can be valid if the supported design specifies it?

  1. Assign the AP port to an arbitrary unused VLAN with no routed path.
  2. A trunk is mandatory for every lightweight AP regardless of WLAN forwarding mode.
  3. An access port in the approved AP management VLAN, with WLC reachability.
  4. Disable WLC IP reachability to reduce overhead.

Explanation

Correct Answer

C:

For centrally switched WLAN traffic, the AP can use its wired management network to establish the CAPWAP path to the controller. A trunk is not automatically required on the AP port when separate locally switched VLANs are not present. Validate the exact controller/AP deployment model and approved management VLAN.

Incorrect Answers

A:

The AP must reach the controller or its configured management services. An isolated VLAN without the required connectivity would prevent normal adoption.

B:

The need for tagged client VLANs depends on whether the AP locally switches multiple VLANs. A purely centrally switched design may only require management connectivity at the AP port.

D:

A lightweight AP needs its appropriate controller/control connectivity to receive and maintain centralized WLAN policy. Breaking that path undermines operation.

Question 221

A switch uplink to a wireless controller carries traffic for several centrally switched WLAN VLAN interfaces. Client VLAN 40 is missing while VLAN 20 works. Where should VLAN transport be verified?

  1. By changing the OSPF router ID on a different distribution router.
  2. On the controller-facing trunk or supported LAG and the switch’s allowed-VLAN list.
  3. On the user workstation DNS suffix only.
  4. On the AP 2.4-GHz RF power level only.

Explanation

Correct Answer

B:

When the WLC terminates multiple client VLANs on its wired uplink, the switch infrastructure must transport each approved VLAN through the appropriate trunk or aggregation interface. Missing VLAN 40 in the permitted list can strand those clients even while VLAN 20 succeeds. Verify controller mappings and switch allowed/native settings together.

Incorrect Answers

A:

Router ID changes influence routing control identity, not the controller trunk’s allowed VLAN membership. The stated difference is between client VLANs.

C:

DNS can affect application name resolution but does not permit an 802.1Q VLAN on a switch trunk. The failure is a VLAN transport mismatch.

D:

Radio power controls coverage, not which wired VLAN tags the controller uplink carries. Clients can associate while their VLAN is absent upstream.

Question 222

A remote AP is configured for FlexConnect local switching. An employee WLAN maps to VLAN 120, and a guest WLAN maps to VLAN 130 at the branch. What must the adjacent wired switch support?

  1. Only the AP management VLAN, because local switching never uses client VLANs.
  2. A static MAC address for every client on the branch switch.
  3. The locally switched VLAN mappings and approved 802.1Q tags for VLANs 120 and 130 on the AP uplink.
  4. An identical wireless radio channel for both WLAN VLANs.

Explanation

Correct Answer

C:

FlexConnect local switching places selected WLAN client frames onto the branch wired VLANs instead of tunneling all data to the central controller. The AP uplink therefore needs the corresponding VLAN transport and compatible native or tagged management settings. Missing either VLAN can leave one SSID associated but unable to reach its local subnet.

Incorrect Answers

A:

That describes a different central-switching assumption. Local switching requires the branch link to carry mapped client data VLANs.

B:

Normal VLAN trunk forwarding and MAC learning do not require manually pinning every wireless client MAC. The missing infrastructure function is correct VLAN transport.

D:

RF channel selection controls radio spectrum, not the Ethernet VLAN tags on the AP’s wired link. Both WLANs can share a radio while mapping to distinct VLANs.

Question 223

A WLC and an AP are separated by routed IP networks. The AP has a valid IP address but does not join. Which infrastructure dependency should be checked in addition to the physical Ethernet link?

  1. A DNS-only fix that ignores whether an IP path exists.
  2. An OSPF DR election between the AP radio and user laptops.
  3. A change to the SSID text advertised by the AP.
  4. IP reachability and discovery/control connectivity between the AP management address and the controller.

Explanation

Correct Answer

D:

Lightweight APs establish controller relationships over IP, commonly using supported CAPWAP control transport. A working switch port and IP lease are not sufficient if routes, security rules or controller discovery are broken. Verify address, gateway, discovery and required permitted traffic before changing radio channels.

Incorrect Answers

A:

Controller naming may help discovery, but DNS alone cannot make an unroutable AP management subnet reach the WLC. The transport path still matters.

B:

Client devices and lightweight APs do not use OSPF DR election to discover their WLC. The requirement is management/control reachability.

C:

SSID names identify WLANs to clients, not the management network path between AP and controller. The join failure precedes normal client service.

Question 224

A PoE-capable switch port connects to a supported ceiling-mounted AP, but the AP reboots when a second radio enables because the switchport negotiates less power than the model requires. What should be checked?

  1. The default IP subnet mask of the guest VLAN.
  2. The OSPF cost of the upstream WAN route.
  3. The DNS TTL of the controller hostname.
  4. The switch PoE power budget and negotiated device power class for that AP.

Explanation

Correct Answer

D:

PoE provides electrical power through the AP’s Ethernet link. An underpowered AP may boot partially or lose functionality as radio load increases. Check the supported 802.3af/at/bt requirement, port negotiation and total chassis budget before troubleshooting IP routes or WLAN passwords.

Incorrect Answers

A:

Subnetting affects IP reachability after the AP is powered, not the wattage negotiated at the Ethernet port. A gateway change will not prevent power-budget resets.

B:

Routing preference may affect controller connectivity, but cannot increase available PoE wattage. The symptom is directly correlated with radio power consumption.

C:

DNS caching can affect name resolution, but it does not supply electric current to AP radios. Power negotiation is a physical infrastructure concern.

Question 225

A switch supports a remote browser-based management interface. The security standard requires TLS encryption between the operator and the device. Which URL scheme is appropriate?

  1. HTTP without TLS, because passwords are entered into a web form.
  2. CDP over the management VLAN.
  3. HTTPS on the management service, with supported certificates and access control.
  4. Telnet with line password authentication.

Explanation

Correct Answer

C:

HTTPS protects HTTP management traffic with TLS, providing encryption and server identity validation when properly configured. It is appropriate for a web-based management GUI, as opposed to SSH for CLI. Restrict management interfaces to trusted networks and review certificates so users do not bypass identity warnings.

Incorrect Answers

A:

An ordinary HTTP form does not encrypt the transport path merely because a password is masked on the screen. Sensitive credentials can be exposed in transit.

B:

CDP advertises local neighbor details rather than offering a web GUI with TLS. It is not a replacement for encrypted HTTP management.

D:

Telnet supplies plaintext CLI access rather than a protected browser management service. It does not meet the stated HTTPS/TLS requirement.

Question 226

A network device must accept SSH login only from a trusted management subnet. SSH itself is correctly configured, but anyone on reachable networks can attempt login. What additional restriction is relevant?

  1. Disable SSH encryption and keep passwords unchanged.
  2. Enable PortFast on the device uplink as an SSH filter.
  3. Use a broader default route so more clients can reach SSH.
  4. Apply a suitable management-plane ACL or VTY access-class allowing only the approved source subnet.

Explanation

Correct Answer

D:

An encrypted SSH session still exposes an authentication endpoint to any reachable source unless access policy limits it. A VTY access-class or platform-appropriate management ACL can restrict which source addresses may attempt sessions. Preserve recovery access, verify the ACL direction and confirm legitimate administrators still connect.

Incorrect Answers

A:

Removing encryption worsens confidentiality and does not enforce the requested source subnet restriction. SSH should remain protected.

B:

PortFast concerns STP edge transition and does not inspect IP source addresses of inbound management attempts. An ACL or management access policy is required.

C:

Broader routing increases reachability rather than restricting who can initiate the management session. The task requires source authorization control.

Question 227

A wireless access policy uses centralized network authentication for clients, including AAA and accounting, rather than static local passwords on every access switch. Which service architecture is appropriate?

  1. RADIUS-backed network access authentication with a compatible WLAN or switch authenticator.
  2. Plain DNS A-record lookups as the sole user authentication mechanism.
  3. An IP address allocation by DHCP without any identity check.
  4. CDP neighbor exchange in place of RADIUS.

Explanation

Correct Answer

A:

RADIUS is widely used for centralized network access authentication, authorization attributes and accounting records with a client network device. Wireless controllers or access switches forward appropriate authentication information to the AAA service. Proper shared credentials, transport protection and server availability must be designed; a local device hostname does not provide centralized authentication.

Incorrect Answers

B:

DNS can locate a service by name but does not authenticate the connecting network user or supply authorization attributes.

C:

DHCP can assign an address to a client but is not proof of the user’s authorization to join a protected WLAN. Authentication remains a separate policy.

D:

Neighbor discovery identifies attached devices but does not validate wireless client credentials or maintain AAA sessions. It is not an access authentication server.

Question 228

An enterprise uses a central AAA server to authenticate network administrators and wants separate authorization policies plus detailed command accountability. Which access management protocol is often suited to this Cisco environment?

  1. CDP, because it stores administrative command accounting records.
  2. An unencrypted shared Telnet password for every engineer.
  3. TACACS+ with server-side command authorization and accounting where supported.
  4. A spanning-tree BPDU guard rule on the VTY lines.

Explanation

Correct Answer

C:

TACACS+ is commonly used for Cisco network device administration and can separate authentication, authorization and accounting functions, including command-level controls in supported implementations. The network device must contact an authorized AAA server and have a defined local fallback policy. This is different from choosing a WLAN client access protocol solely by SSID.

Incorrect Answers

A:

CDP carries neighbor identity information and does not act as a centralized user login and command accounting system.

B:

A shared line password cannot provide distinct user accountability or centrally evaluated per-command authorization. It also exposes management traffic.

D:

BPDU guard protects edge switchports from unexpected STP control frames. It has no function for authenticating or accounting administrators who run CLI commands.

Question 229

A controller-managed branch switch offers management through an approved cloud portal. The branch has no permitted inbound SSH connectivity, but outbound management is allowed. What distinction matters?

  1. Cloud management removes the need for any device connectivity to the provider.
  2. Cloud management requires unauthenticated public Telnet access.
  3. Cloud-managed device administration can use an authorized outbound management connection instead of direct inbound CLI access.
  4. Cloud management means the switch has no local forwarding hardware.

Explanation

Correct Answer

C:

Cloud-managed networking often centralizes monitoring and configuration through a provider service that the device contacts according to the platform design. This can reduce the need for direct inbound management ports. It still depends on secure identity, transport, policy and platform support rather than bypassing device ownership controls.

Incorrect Answers

A:

The cloud portal cannot manage an entirely disconnected device without an available communication path. Outbound control reachability is part of the scenario.

B:

Unencrypted open Telnet is not a prerequisite for authorized cloud management and would create avoidable security exposure. Use the platform’s supported secure control channel.

D:

Management-plane location does not eliminate Ethernet switching hardware or local data forwarding. The switch still transports traffic on-site.

Question 230

A Cisco switch is isolated during recovery and its IP management interface is misconfigured. The engineer has approved physical access to its dedicated console port. Which management method remains appropriate?

  1. HTTPS to a disconnected switch web service.
  2. A direct console connection that does not depend on the switch’s IP routing.
  3. A DNS TXT record pointing to the console PIN.
  4. SSH to the unusable management IP, assuming no addressing is required.

Explanation

Correct Answer

B:

The console port provides out-of-band local access to the device command interface when network management services are unavailable. An authorized technician can inspect or repair IP addressing through a terminal connection. Unlike SSH or HTTPS, a physically attached console session does not need a working network path to the device.

Incorrect Answers

A:

HTTPS still requires the switch to have a reachable IP endpoint. Physical console recovery is independent of the broken management network.

C:

DNS records do not provide direct command access to a physical console port. This would not repair the management interface.

D:

SSH is an IP-based remote protocol and requires network reachability. With the management address broken, it may not be available until repaired through a local path.