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Question 1
Which tab should a network administrator use to create a new VLAN interface on a Cisco 2500 series WLC?
Correct Answer:
Controller
Explanation:
To create a new VLAN interface on a Cisco 2500 series Wireless LAN Controller (WLC), the network administrator should navigate to the Controller tab. This tab provides the necessary settings and configuration options to manage VLANs and interfaces related to the wireless LAN. In the context of configuring VLANs, the Controller tab offers options to define and modify parameters related to the wireless environment, including the addition of VLAN interfaces, which are essential for segmenting network traffic and improving network management. The specific interface configurations are generally found under this tab, thus making it the appropriate choice for creating a new VLAN interface. While other tabs may contain relevant information or settings for other aspects of the WLC’s operation, the Controller tab specifically caters to the creation and management of VLAN interfaces, providing the right tools for network administrators to effectively manage their wireless environments.
Question 2
If the MAC address table on a switch is empty, how will the frame from PC-A be handled when sent to PC-C?
Correct Answer:
SW floods the frame on all the ports on SW1, excluding the port through which the frame entered
Explanation:
When a switch receives a frame and its MAC address table is empty, it does not have any entries to know which port to send the frame to for the specific destination MAC address. In this scenario, the switch will handle the incoming frame by flooding it out on all ports except the port it came from. This process allows the switch to learn which device is connected to which port. As the frame is flooded, all connected devices, including PC-B and PC-C, will receive a copy of the sent frame. Only the intended recipient, in this case PC-C, will respond and send a reply back, allowing the switch to learn PC-C's MAC address and the port it is connected to. Over time, this learning process helps the switch build its MAC address table, thus decreasing the need for flooding in future communications to that device. Flooding is a fundamental behavior of Ethernet switches, designed to support dynamic network configurations where devices can connect or disconnect without prior knowledge of their locations in the network. This mechanism ensures that frames can be reliably delivered, even in the absence of prior knowledge about the MAC address locations.
Question 3
What information is displayed by the show spanning-tree command on a switch?
Correct Answer:
The root bridge BID and the role of the ports in all VLANs
Explanation:
The command "show spanning-tree" provides crucial information regarding the Spanning Tree Protocol (STP) configuration and status on a switch. Specifically, it displays the Bridge ID (BID) of the root bridge, which is essential in determining the overall topology of the network, as well as the roles of each port on the switch within the various VLANs configured. It reveals which ports are designated, root, blocked, or alternative, providing insights into how the switch contributes to loop prevention in the network. By understanding the role of each port and the identification of the root bridge, network administrators can troubleshoot connectivity issues, optimize STP settings, and ensure that the network topology remains loop-free. This information is vital for maintaining a healthy and efficient network infrastructure. The other choices do not relate to the STP configuration directly, as they pertain to different functionalities of the switch.
Question 4
Which DHCP message type confirms that the address lease has been accepted?
Correct Answer:
DHCPACK
Explanation:
The DHCPACK message type is used to confirm that the address lease has been accepted. When a client sends a DHCPREQUEST message, it is essentially requesting an IP address that it has previously received in the DHCPOFFER from a DHCP server. After this request, the DHCP server responds with a DHCPACK, indicating that the lease is granted and the client can use the assigned IP address for the designated duration. This process ensures that both the client and server are in agreement about the lease of the IP address. The DHCPACK is key to establishing a relationship between the client and the server with respect to the IP address assigned, as it signifies the successful completion of the DHCP lease process. In contrast, the DHCPOFFER is the initial message sent by the DHCP server to inform clients of available IP addresses, while the DHCPREQUEST is sent by the client to request an IP address formally. DHCPDISCOVER is the initial broadcast message that clients use to locate DHCP servers on the network. This distinction is crucial as it illustrates the sequential flow of the DHCP process, culminating in the DHCPACK that solidifies the lease agreement.
Question 5
What is the role of the root bridge in a spanning tree protocol?
Correct Answer:
It serves as the central point for traffic and path determination
Explanation:
The root bridge in a spanning tree protocol plays a vital role in the network topology's management and operation. It serves as the central point for traffic and path determination, which is crucial for preventing loops in a Layer 2 network. The root bridge is selected based on its Bridge ID, which includes the bridge priority and MAC address. Once the root bridge is established, all other switches in the network compute the shortest path to it, which helps in determining the roles of all ports (e.g., root ports, designated ports) and ensures that there are no loops while maintaining an optimal path for data flow. The root bridge's designation as the focal point helps streamline the process of forwarding frames and maintaining a loop-free topology through the Spanning Tree Protocol (STP). With the root bridge as a reference, each switch can efficiently manage its paths, ensuring that data travels through the most efficient routes while maintaining network reliability.
Question 1
Exam overview

About this Exam

The [CCNA 2 Switching, Routing, and Wireless Essentials, Version 7.0 Practice Test] is a vital educational tool designed for students enrolled in the Cisco Networking Academy program. It serves as the culmination of the second course in the three-course CCNA curriculum framework. This exam validates a student's readiness to move forward toward the comprehensive vendor CCNA certification (200-301). It is specifically engineered for aspiring network technicians, support engineers, and IT professionals who have completed the "Introduction to Networks" course and are now mastering the architecture, components, and operations of routers and switches in small to medium-sized networks.

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Additional Information

What the Course Entails and Exam Details

The CCNA 2 v7.0 (SRWE) curriculum delves deeply into the technologies that power modern local area networks (LANs) and introduces essential wireless concepts. The core syllabus covers several critical domains. You will learn to configure advanced functionality on routers and switches, moving beyond basic setup. This includes mastering Virtual LANs (VLANs) for network segmentation and security, and implementing Inter-VLAN Routing using methods such as Router-on-a-Stick. The course also emphasizes network redundancy and reliability, teaching concepts like Spanning Tree Protocol (STP) to prevent Layer 2 loops, and EtherChannel to aggregate link bandwidth. You will explore dynamic addressing through DHCPv4 and DHCPv6, learn about SLAAC, and implement First Hop Redundancy Protocols (FHRP). Crucially, the SRWE module introduces LAN security concepts, switch security configuration to mitigate attacks, and the concepts and configuration of Wireless LANs (WLANs). Finally, you will become proficient in configuring and troubleshooting IPv4 and IPv6 Static Routing.


What to Expect in the Final Exam

While "Practice Test" usually refers to the final practice offered within the Networking Academy portal, the actual Cisco NetAcad CCNA 2 Final Exam is a rigorous assessment typically structured in two distinct parts.

  1. Multiple-Choice/Scenario Questions: This section tests your conceptual understanding of all the topics outlined above. You will encounter various question types, including single-choice, multiple-response, drag-and-drop, and scenario-based inquiries that require you to analyze network diagrams or configuration snippets.

  2. Practical Skills Assessment (Packet Tracer): This is a defining feature of the NetAcad experience. You will be provided with a topology and a set of requirements. You must use Cisco Packet Tracer to configure devices (routers, switches, and sometimes wireless controllers) to meet these requirements. You may need to troubleshoot existing configurations or build a segment from scratch.

The combined time limit for these sections is generally around 2 to 3 hours. A passing score is defined by your specific academy but typically requires achieving mastery across all domains. The exam is closed-book, and you are expected to complete it independently within the academy’s secure environment.


How to Study and Exam Centers

Preparation for the CCNA 2 SRWE v7.0 exam must be hands-on and consistent. Your primary resource is the comprehensive online curriculum provided through the Cisco Networking Academy portal (NetAcad.com). You should diligently complete every assigned lab exercise using either physical Cisco equipment or, more commonly, the robust Cisco Packet Tracer simulation tool. Re-doing labs multiple times to build command-line interface (CLI) fluency is critical for the practical skills portion of the exam.

Utilize the structured "Practice Quizzes" at the end of each module within the NetAcad platform. Engage deeply with the official "Check Your Understanding" interactive activities. When reviewing practice questions, don’t just memorize the correct answer; analyze why the other options are incorrect based on Cisco’s validated definitions and architectural principles. Supplemental study materials from Cisco Press, such as the CCNA 2 v7.0 Labs & Study Guide, can provide excellent theoretical consolidation and additional practice scenarios.

As a student-focused exam, you will take the CCNA 2 Final Exam exclusively through your registered Cisco Networking Academy. The exam is administered via the NetAcad online portal under the supervision of your instructor. This differs from the vendor CCNA 200-301 certification, which is taken at Pearson VUE testing centers or via Pearson’s online proctoring service. Ensure your academy account is active and you are familiar with the portal’s testing interface before your scheduled exam time.


Job Opportunities from the Course

Successfully completing the CCNA 2 course and passing its final exam proves to employers and your academy that you possess the core switching, routing, and wireless skills required for entry-level networking roles. It is a massive step toward becoming fully CCNA certified.

This foundational mastery unlocks numerous career paths in network administration and support, including specific job titles such as:

  • Network Administrator

  • Junior Network Engineer

  • Network Support Technician

  • Technical Support Engineer (L1/L2)

  • Field Service Technician

  • System Engineer (Entry-Level)

  • Network Analyst

  • Wireless Support Specialist

  • IT Support Specialist (Networking Focus)

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