Pass the Cisco CCNA 200-301 Questions and answers with CertsForce

Weighted Random Early Detection is a congestion-avoidance mechanism. It starts dropping selected packets before an output queue becomes completely full, which helps avoid tail drop and TCP global synchronization. WRED can weight the drop behavior by IP precedence or DSCP so lower-priority traffic is more likely to be dropped before higher-priority traffic. That makes options A and D correct. WRED does not guarantee delivery of high-priority packets; it only changes drop probabilities. It also does not perform deep flow identification with high granularity, and it is not a protocol-discovery feature. In QoS design, classification and marking identify traffic, congestion management schedules traffic, and congestion avoidance drops early to prevent queue collapse. CCNA 200-301 v1.1 IP Services includes QoS behavior at a conceptual level, and WRED is best remembered as selective early drop based on traffic marking. Reference: Cisco QoS congestion avoidance and WRED behavior.

This drag-and-drop item is a subnetting exercise. For each IPv4 network, first identify the block size from the subnet mask, then calculate the network address, first usable host, last usable host, and broadcast address. Cisco CCNA 200-301 v1.1 expects candidates to work these ranges without relying on a calculator because routing, VLAN addressing, DHCP pools, and ACL wildcard logic all depend on the same arithmetic. A usable host range never includes the subnet ID or the broadcast address. For example, a /29 has eight total addresses and six usable hosts, while a /30 has four total addresses and two usable hosts. The correct matching is the one where each subnet is paired with only the valid host addresses inside that exact block. If an address falls on the boundary of the subnet or at the final broadcast value, it is not assignable to an interface. The reliable method is binary block sizing, not visual similarity between numbers.

The correct response is D. The listed choice that matches FHRP operation is the exchange of multicast hello messages between routers. Those hello messages let routers negotiate active, standby, master, or backup roles for a shared default-gateway function. For Cisco CCNA 200-301 v1.1, the important point is the mechanism, not a generic description of the technology. The better conceptual purpose is gateway redundancy, but among these options the multicast hello behaviour is the FHRP-specific answer. When this appears in a network, the symptom normally confirms the answer: the route installed, the state selected, the packet forwarded, the wireless client behaviour, or the management workflow will follow this rule. That is why this answer is the best fit for the scenario and not just a plausible networking term.

Unused switch ports should not remain active in the default VLAN. The proper hardening approach is to administratively shut them down and move them into an unused access VLAN, often called a parking, black-hole, or unused VLAN. Shutting the port stops an attacker from plugging in and immediately gaining Layer 2 connectivity. Moving the port out of VLAN 1 reduces the impact if someone later enables the port accidentally. EtherChannel is irrelevant because it aggregates links; it does not protect idle user-facing ports. Trunking unused ports is actively dangerous because it could expose multiple VLANs. CDP can disclose device information and is not a protection method for unused ports. Cisco CCNA v1.1 Network Access and Security Fundamentals overlap here: secure access-layer design includes disabling unused interfaces, avoiding the default VLAN for user access, and limiting unintended Layer 2 exposure. Therefore, B and C are the correct operational steps.

Use B for this item. IPv4 hosts use DHCP to obtain dynamically assigned IP addressing information. The DHCP process supplies an IP address, subnet mask, default gateway, DNS server, and lease information without manual host configuration. In Cisco CCNA 200-301 v1.1, IP Services questions frequently test the practical boundary between similar features: what the feature does, where it is configured, and what problem it is meant to solve. ARP resolves IP addresses to MAC addresses, DNS resolves names, and CDP discovers Cisco neighbors. A clean way to validate the answer is to map the wording of the scenario to the actual device function. If the feature supplies addressing, forwarding, authentication, trunking, route selection, or controller communication, the answer must match that function exactly rather than a nearby protocol name.

The exhibit shows an interface configured as trusted for Dynamic ARP Inspection. In a normal access-layer design, trusted DAI ports are not user-facing ports. They are uplinks or infrastructure-facing links where valid ARP replies may arrive, typically toward a router, distribution switch, or another trusted network device. End-user devices such as PCs and ordinary DHCP clients should stay untrusted so the switch can validate their ARP traffic against the DHCP snooping binding database. If an untrusted host sends forged ARP information, DAI can drop it before it poisons neighboring hosts. That is why the device connected to FastEthernet0/1 is expected to be a router in this scenario. Cisco CCNA 200-301 v1.1 places this under IP Services and access-layer security behavior because DHCP snooping and DAI work together to protect Layer 2 addressing. The clue is the ip arp inspection trust interface setting. A trusted port should face infrastructure, not an endpoint, so C is correct.

A DHCP client is a host configured to request IP addressing information automatically. It sends DHCP messages to obtain an address lease and related options such as subnet mask, default gateway, DNS server, and lease duration. The server is the device that owns the address pool and assigns addresses. A workstation that requests a domain name for an IP address is using DNS behavior, not DHCP client behavior. A router can relay DHCP messages or host DHCP pools, but it is not described as a DHCP client unless its own interface is configured to obtain an address dynamically. Cisco CCNA 200-301 v1.1 IP Services expects candidates to separate DHCP client, DHCP server, and DHCP relay functions. In the DHCP exchange, the client initiates discovery because it needs configuration. Therefore, the correct definition is a host that is configured to request an IP address automatically.

The WLAN component mapping follows the normal Cisco wireless architecture. The wireless LAN controller is the device that centrally manages lightweight access points. An access point is the radio device that gives wireless clients connectivity into the wired infrastructure. A service port is used for out-of-band management of the WLC. A dynamic interface is mapped to WLANs and client VLANs so wireless client traffic can be placed into the correct wired network. The virtual interface supports controller functions such as mobility management and internal controller operations, depending on the platform and software release. The exam point is straightforward: APs provide RF access, WLCs centralize control, and controller interfaces define management and client-data handling. CCNA 200-301 v1.1 Network Access expects candidates to identify these WLC components rather than treat the controller as a single generic box. The existing drag-and-drop answer aligns with Cisco wireless controller terminology. Reference: Cisco Wireless LAN Controller interface and WLAN architecture documentation.

The verified answer is A. WPA2 with AES is the strongest encryption combination in the listed options. AES/CCMP replaced older WEP, RC4, and TKIP-based approaches and is the expected secure WPA2 cipher choice. Cisco CCNA 200-301 v1.1 places this skill in Security Fundamentals, where the exam expects a working understanding of how the feature behaves on real Cisco networks, not just a memorized command. WEP and TKIP are deprecated, and WPA with AES is not the preferred WPA2 security combination. In production, this distinction matters because a misapplied command or design choice usually creates an outage, a security gap, or unnecessary troubleshooting noise. The correct choice matches the control-plane, data-plane, wireless, security, or services behaviour described in the scenario and should be preferred over options that merely sound related.

RIP. Cisco routing logic is deterministic: a router first matches the most specific destination prefix, then uses administrative distance when competing route sources advertise the same prefix, and finally evaluates the protocol metric when multiple paths remain inside the same routing protocol. First-hop redundancy protocols add a separate default-gateway resiliency function for hosts on a LAN. The other choices in this question either point to the wrong route-selection rule, confuse a protocol metric with administrative distance, or apply a Layer 2 concept where a Layer 3 forwarding decision is required. In production, that mistake would create blackholing, asymmetric routing, or a backup path that never activates. Cisco CCNA 200-301 v1.1 tests this because route selection is fundamental to troubleshooting reachability. The selected answer matches the behavior Cisco routers use when forwarding traffic or maintaining gateway redundancy.

Cisco WLC WPA2-PSK configuration supports a pre-shared key entered either as ASCII text or as a hexadecimal key. ASCII is the human-readable passphrase format administrators normally use, while hexadecimal is the raw key representation. Base64, binary, and decimal are not the WLC PSK input formats for this configuration task. This question is easy to miss because it is asking about the selectable key formats in the Cisco Wireless LAN Controller GUI, not about the WPA2 cipher itself. Under CCNA 200-301 v1.1 Network Access, candidates are expected to recognize basic WLAN security configuration elements, including WPA2, PSK, SSID, and wireless controller settings. In practice, using ASCII simplifies administration, while hexadecimal is useful when a precise key value must be supplied. The verified choices are therefore A and E. Reference: Cisco Wireless LAN Controller WLAN security configuration guidance for WPA/WPA2 pre-shared keys.

Answer D is the technically correct selection. A DNS lookup resolves a name query or reverse query by asking DNS infrastructure for the matching value. In normal client use, DNS translates a hostname into an IP address so the application can connect to the destination. This aligns with Cisco CCNA 200-301 v1.1 because the exam blueprint requires engineers to recognize operational behaviour from configuration symptoms and topology requirements. DNS does not ping the destination, act as an HA redirector by default, or merely define port 53 service behaviour. Treat the distractors carefully: most are real Cisco terms, but they solve a different problem or operate at a different layer. The selected answer is the one that would be used by an engineer on the device or in the design to produce the outcome stated in the question.

Configure PSK-SHA2.. Cisco wireless design separates RF behavior, client authentication, encryption, AP operating mode, and controller management. A WLC centralizes WLAN configuration and AP control, while lightweight APs use CAPWAP to register and exchange control/data information with the controller. Security choices such as WPA2/AES and WPA3/SAE are not interchangeable with older mechanisms such as WEP, TKIP, or RC4. RF questions also depend on channel planning: adjacent cells should avoid overlapping channels, and 5-GHz preference features reduce congestion in the 2.4-GHz band. The incorrect options generally confuse AP mode, authentication, encryption, or controller responsibilities. Cisco CCNA 200-301 v1.1 includes these items because wireless failures often come from using the right-looking feature in the wrong part of the WLAN design. The selected answer is the Cisco-consistent configuration or behavior for this wireless scenario.

The verified answer is A. The default-router command in a Cisco DHCP pool supplies the default gateway option to DHCP clients. Clients receive that address as the router to use for destinations outside their local subnet. Cisco CCNA 200-301 v1.1 places this skill in IP Services, where the exam expects a working understanding of how the feature behaves on real Cisco networks, not just a memorized command. default-gateway is used differently on some switches, ip helper-address relays DHCP, and dns-server supplies name-resolution servers. In production, this distinction matters because a misapplied command or design choice usually creates an outage, a security gap, or unnecessary troubleshooting noise. The correct choice matches the control-plane, data-plane, wireless, security, or services behaviour described in the scenario and should be preferred over options that merely sound related.

GigabitEthernet1/0. Cisco wireless design separates RF behavior, client authentication, encryption, AP operating mode, and controller management. A WLC centralizes WLAN configuration and AP control, while lightweight APs use CAPWAP to register and exchange control/data information with the controller. Security choices such as WPA2/AES and WPA3/SAE are not interchangeable with older mechanisms such as WEP, TKIP, or RC4. RF questions also depend on channel planning: adjacent cells should avoid overlapping channels, and 5-GHz preference features reduce congestion in the 2.4-GHz band. The incorrect options generally confuse AP mode, authentication, encryption, or controller responsibilities. Cisco CCNA 200-301 v1.1 includes these items because wireless failures often come from using the right-looking feature in the wrong part of the WLAN design. The selected answer is the Cisco-consistent configuration or behavior for this wireless scenario.

To make a switch always win the STP root election for VLAN 750, configure the lowest possible bridge priority for that VLAN. Cisco STP priorities are configured in increments of 4096, and priority 0 is the lowest configurable value. The command spanning-tree vlan 750 root primary is convenient, but it calculates a priority intended to beat the current root at the time the command is entered. It is not as absolute as setting priority 0. Several listed numeric values are invalid or too high to guarantee root status. Cisco CCNA 200-301 v1.1 Network Access tests this because root bridge placement is a core switching design control. A switch becomes root by having the lowest bridge ID, and priority is compared before MAC address. Setting the VLAN priority to 0 gives the switch the strongest possible election position for VLAN 750. The command that best guarantees root status is spanning-tree vlan 750 priority 0.

Answer D is the technically correct selection. Badge readers on data-center doors are physical access control. They regulate who can enter protected spaces based on identity, role, and authorization. This aligns with Cisco CCNA 200-301 v1.1 because the exam blueprint requires engineers to recognize operational behaviour from configuration symptoms and topology requirements. RBAC can influence the policy, biometrics can be a factor, and MFA can strengthen authentication, but the control described is physical facility access. Treat the distractors carefully: most are real Cisco terms, but they solve a different problem or operate at a different layer. The selected answer is the one that would be used by an engineer on the device or in the design to produce the outcome stated in the question.

The correct response is D. With default DNS lookup behaviour, Cisco IOS attempts to resolve unrecognized text or hostnames. If a name server is not explicitly configured, the device may try a broadcast-style lookup attempt while translating the entered string. For Cisco CCNA 200-301 v1.1, the important point is the mechanism, not a generic description of the technology. It does not start a ping automatically or ask the user to type an IP address first. When this appears in a network, the symptom normally confirms the answer: the route installed, the state selected, the packet forwarded, the wireless client behaviour, or the management workflow will follow this rule. That is why this answer is the best fit for the scenario and not just a plausible networking term.

An interface line has changed status. Cisco routing logic is deterministic: a router first matches the most specific destination prefix, then uses administrative distance when competing route sources advertise the same prefix, and finally evaluates the protocol metric when multiple paths remain inside the same routing protocol. First-hop redundancy protocols add a separate default-gateway resiliency function for hosts on a LAN. The other choices in this question either point to the wrong route-selection rule, confuse a protocol metric with administrative distance, or apply a Layer 2 concept where a Layer 3 forwarding decision is required. In production, that mistake would create blackholing, asymmetric routing, or a backup path that never activates. Cisco CCNA 200-301 v1.1 tests this because route selection is fundamental to troubleshooting reachability. The selected answer matches the behavior Cisco routers use when forwarding traffic or maintaining gateway redundancy.

In local AP mode, a lightweight access point builds CAPWAP connectivity to the wireless LAN controller and normally sends both control and client data traffic through the controller. Cisco commonly describes this as separate CAPWAP control and data tunnels. FlexConnect mode is different because it is designed for remote or branch deployments where the AP may locally switch client data traffic instead of backhauling it all through the WLC. That is why option C is wrong: with local switching, FlexConnect bridges traffic locally, not from the AP to the WLC. FlexConnect can also continue serving clients during a WAN or controller outage, depending on configuration and authentication method, so option B is wrong. Local mode does not turn the AP into an autonomous AP; it remains controller-based. Cisco CCNA 200-301 v1.1 Network Access expects the distinction between centralized WLC forwarding and branch-friendly FlexConnect operation. The clearly correct difference in the options is A.