CCNA 3 v6.0 (Scaling Networks v6) Chapter 1: LAN Design: Check Your Understanding Questions Answers
1. In the Cisco Enterprise Architecture, which two functional parts of the network are combined to form a collapsed core design? (Choose two.)
- Access layer
- Core layer
- Distribution layer
- Enterprise edge
- Provider edge
Explanation: The Cisco Enterprise Architecture is a hierarchical design. The network is divided into three functional layers: core, distribution, and access. In smaller networks, this three-layer division of functional layers is collapsed into two layers, with the core and distribution layers combined to form a collapsed core.
2. Which design feature limits the impact of a distribution switch failure in an enterprise network?
- The installation of redundant power supplies
- The purchase of enterprise equipment that is designed for large traffic volume
- The use of a collapsed core design
- The use of the building switch block approach
Explanation: Routers or multilayer switches are usually deployed in pairs, with access layer switches evenly divided between them. This configuration is referred to as a building switch block or a departmental switch block. Each switch block acts independently of the others. As a result, the failure of a single device does not cause the network to go down. Even the failure of an entire switch block does not affect a significant number of end users.
3. What are two benefits of extending access layer connectivity to users through a wireless medium? (Choose two.)
- Decreased number of critical points of failure
- Increased bandwidth availability
- Increased flexibility
- Increased network management options
- Reduced costs
Explanation: Providing wireless connectivity offers many advantages, such as increased flexibility, reduced costs, and the ability to grow and adapt to changing network and business requirements.
4. As the network administrator, you have been asked to implement EtherChannel on the corporate network. What does this configuration consist of?
- Grouping multiple physical ports to increase bandwidth between two switches
- Grouping two devices to share a virtual IP address
- Providing redundant devices to allow traffic to flow in the event of device failure
- Providing redundant links that dynamically block or forward traffic
Explanation: Link aggregation allows an administrator to increase the amount of bandwidth between devices by grouping several physical links together to create one logical link. EtherChannel is a form of link aggregation used in switched networks.
5. Which statement describes a characteristic of Cisco Meraki switches?
- They are campus LAN switches that perform the same functions as Cisco 2960 switches.
- They are cloud-managed access switches that enable virtual stacking of switches.
- They are service provider switches that aggregate traffic at the edge of the network.
- They promote infrastructure scalability, operational continuity, and transport flexibility.
Explanation: Cisco Meraki cloud-managed access switches enable virtual stacking of switches. They monitor and configure thousands of switch ports over the web, without the intervention of onsite IT staff.
6. What term is used to express the thickness or height of a switch?
- Domain size
- Module size
- Port density
- Rack unit
Explanation: The thickness of a switch determines how much space on the rack it will take up and is measured in rack units.
7. What are two functions of a router? (Choose two.)
- It connects multiple IP networks.
- It controls the flow of data through the use of Layer 2 addresses.
- It determines the best path for sending packets.
- It increases the size of the broadcast domain.
- It manages the VLAN database.
Explanation: Routers play a critical role in networking by determining the best path for sending packets. They connect multiple IP networks by connecting homes and businesses to the Internet. They are also used to interconnect multiple sites within an enterprise network, providing redundant paths to destinations. Routers can also act as translators between different media types and protocols.
8. Which two requirements must always be met to use in-band management to configure a network device? (Choose two.)
- A direct connection to the console port
- A direct connection to the auxiliary port
- A terminal emulation client
- At least one network interface that is connected and operational
- Telnet, SSH, or HTTP access to the device
Explanation: In-band management is used to monitor and make configuration changes to a network device over a network connection. Configuration using in-band management requires at least one network interface on the device to be connected and operational and requires Telnet, SSH, HTTP, or HTTPS to access a Cisco device.
9. What are two ways to access a Cisco switch for out-of-band management? (Choose two.)
- A connection that uses HTTP
- A connection that uses the AUX port
- A connection that uses the console port
- A connection that uses SSH
- A connection that uses Telnet
Explanation: Out-of-band management is used for initial configuration or when a network connection is unavailable. Configuration using out-of-band management requires a direct connection to a console or an AUX port and a terminal emulation client such as PuTTY or TeraTerm.