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Questions and Answers
Questions and Answers
Which of the following statements regarding VLANs is true?
Which of the following statements regarding VLANs is true?
- Each VLAN is a separate physical network.
- VLANs share the same broadcast domain.
- Computers on separate VLANs cannot communicate by default. (correct)
- VLANs increase broadcast traffic across the network.
hat defines each VLAN?
hat defines each VLAN?
- A VLAN is a shared broadcast domain.
- VLANs are separate physical networks.
- Each VLAN is a unique broadcast domain. (correct)
- VLANs allow unlimited communication between all devices.
How can communication be established between VLANs?
How can communication be established between VLANs?
- VLANs utilize specialized switches with inter-VLAN routing capabilities.
- VLANs share the same MAC address space, enabling direct communication.
- VLANs are interconnected through VLAN trunks, allowing for direct communication.
- A router is needed to communicate among separate broadcast domains and unique IP subnetworks. (correct)
What is Inter-VLAN Routing?
What is Inter-VLAN Routing?
Question: Which of the following methods are commonly used for Inter-VLAN Routing? Select all that apply
(a) Router-on-a-stick Inter-VLAN Routing.
(b) VLAN Trunking.
(c) Traditional Inter-VLAN Routing.
(d) Layer 2 Switching.
(e) Switch Based Inter-VLAN Routing.
Question: Which of the following methods are commonly used for Inter-VLAN Routing? Select all that apply
(a) Router-on-a-stick Inter-VLAN Routing. (b) VLAN Trunking. (c) Traditional Inter-VLAN Routing. (d) Layer 2 Switching. (e) Switch Based Inter-VLAN Routing.
What characterizes Traditional Inter-VLAN Routing?
What characterizes Traditional Inter-VLAN Routing?
What characterizes Router-on-a-stick Inter-VLAN Routing?
What characterizes Router-on-a-stick Inter-VLAN Routing?
What is a requirement for Traditional Inter-VLAN Routing?
What is a requirement for Traditional Inter-VLAN Routing?
How are interfaces configured in Traditional Inter-VLAN Routing?
How are interfaces configured in Traditional Inter-VLAN Routing?
What capability does this configuration provide for network devices?
What capability does this configuration provide for network devices?
Why does the physical approach of having one router interface per VLAN become hindered as the number of VLANs increases on a network?
Why does the physical approach of having one router interface per VLAN become hindered as the number of VLANs increases on a network?
What limitation do routers face regarding the number of VLANs they can connect to?
What limitation do routers face regarding the number of VLANs they can connect to?
It is very expensive to add an Ethernet Interface.
It is very expensive to add an Ethernet Interface.
What are the characteristics of Router-on-a-stick Inter-VLAN Routing in Configuring subinterfaces? Choose four
(a) Utilizes physical interfaces for each VLAN.
(b) Relies on VLAN trunking for communication between VLANs.
(c) Overcomes the hardware limitation of a router.
(d) Subinterfaces are software-based virtual interfaces that are assigned to physical interfaces.
(e) Each subinterface is configured with its own IP address, subnet mask, and unique VLAN assignment.
(f) Connected to a switch trunk link.
(g) Functionally the same as using the traditional routing model.
What are the characteristics of Router-on-a-stick Inter-VLAN Routing in Configuring subinterfaces? Choose four
(a) Utilizes physical interfaces for each VLAN. (b) Relies on VLAN trunking for communication between VLANs. (c) Overcomes the hardware limitation of a router. (d) Subinterfaces are software-based virtual interfaces that are assigned to physical interfaces. (e) Each subinterface is configured with its own IP address, subnet mask, and unique VLAN assignment. (f) Connected to a switch trunk link. (g) Functionally the same as using the traditional routing model.
How does Router-on-a-stick Inter-VLAN Routing compare to the traditional routing model?
How does Router-on-a-stick Inter-VLAN Routing compare to the traditional routing model?
What is the process for configuring subinterfaces in Router-on-a-stick Inter-VLAN Routing?
What is the process for configuring subinterfaces in Router-on-a-stick Inter-VLAN Routing?
What is the syntax for creating a subinterface in Router-on-a-stick Inter-VLAN Routing?
What is the syntax for creating a subinterface in Router-on-a-stick Inter-VLAN Routing?
How is the subinterface number typically associated in Router-on-a-stick Inter-VLAN Routing?
How is the subinterface number typically associated in Router-on-a-stick Inter-VLAN Routing?
What is the syntax used to configure a subinterface in Router-on-a-stick Inter-VLAN Routing?
What is the syntax used to configure a subinterface in Router-on-a-stick Inter-VLAN Routing?
What additional configuration is required for the management VLAN in Router-on-a-stick Inter-VLAN Routing when using it on multiple switches not directly connected by trunk links?
What additional configuration is required for the management VLAN in Router-on-a-stick Inter-VLAN Routing when using it on multiple switches not directly connected by trunk links?
What step is necessary before assigning an IP Address in Router-on-a-stick Inter-VLAN Routing?
What step is necessary before assigning an IP Address in Router-on-a-stick Inter-VLAN Routing?
What command is used to configure the VLAN encapsulation for a subinterface in Router-on-a-stick Inter-VLAN Routing?
What command is used to configure the VLAN encapsulation for a subinterface in Router-on-a-stick Inter-VLAN Routing?
What role does the IP Address assigned to a subinterface serve in Router-on-a-stick Inter-VLAN Routing?
What role does the IP Address assigned to a subinterface serve in Router-on-a-stick Inter-VLAN Routing?
Which command is used to assign an IP Address to a subinterface in Router-on-a-stick Inter-VLAN Routing?
Which command is used to assign an IP Address to a subinterface in Router-on-a-stick Inter-VLAN Routing?
How are subinterfaces enabled in Router-on-a-stick Inter-VLAN Routing?
How are subinterfaces enabled in Router-on-a-stick Inter-VLAN Routing?
What command is used to enable the physical interface in Router-on-a-stick Inter-VLAN Routing?
What command is used to enable the physical interface in Router-on-a-stick Inter-VLAN Routing?
Subinterfaces are not enabled individually.
Subinterfaces are not enabled individually.
Which characteristics describe physical interfaces in Router-on-a-stick Inter-VLAN Routing?
Choose five
(a) More expensive.
(b) Connected to access mode switch port.
(c) No bandwidth contention.
(d) Less complex connection configuration.
(e) One physical interface per VLAN.
(f) Bandwidth contention.
(g) One physical interface for many VLANs.
Which characteristics describe physical interfaces in Router-on-a-stick Inter-VLAN Routing? Choose five
(a) More expensive. (b) Connected to access mode switch port. (c) No bandwidth contention. (d) Less complex connection configuration. (e) One physical interface per VLAN. (f) Bandwidth contention. (g) One physical interface for many VLANs.
Which characteristics describe subinterfaces in Router-on-a-stick Inter-VLAN Routing?
Choose five answers
(a) One physical interface for many VLANs.
(b) Bandwidth contention.
(c) Connected to trunk mode switch port.
(d) Less expensive.
(e) More complex connection configuration.
(f) One physical interface per VLAN.
(g) No bandwidth contention.
Which characteristics describe subinterfaces in Router-on-a-stick Inter-VLAN Routing? Choose five answers (a) One physical interface for many VLANs. (b) Bandwidth contention. (c) Connected to trunk mode switch port. (d) Less expensive. (e) More complex connection configuration. (f) One physical interface per VLAN. (g) No bandwidth contention.
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Study Notes
Study Notes
VLANs and Inter-VLAN Routing
- A VLAN (Virtual Local Area Network) is defined by its VLAN ID, which is a number between 1 and 4094.
- Communication between VLANs can be established using Inter-VLAN Routing.
Inter-VLAN Routing Methods
- Commonly used methods for Inter-VLAN Routing include:
- Router-on-a-stick Inter-VLAN Routing
- Traditional Inter-VLAN Routing
- VLAN Trunking
- Switch Based Inter-VLAN Routing
Traditional Inter-VLAN Routing
- Characterized by having one router interface per VLAN
- Requires multiple physical interfaces on the router, each connected to a separate VLAN
- Physical interfaces are configured with an IP address, subnet mask, and VLAN assignment
- Limitation: routers face a limitation on the number of VLANs they can connect to due to the number of physical interfaces available
- Expensive to add Ethernet Interfaces
Router-on-a-stick Inter-VLAN Routing
- Characterized by using subinterfaces, which are software-based virtual interfaces assigned to physical interfaces
- Overcomes the hardware limitation of a router
- Relies on VLAN trunking for communication between VLANs
- Subinterfaces are configured with an IP address, subnet mask, and unique VLAN assignment
- Configuring subinterfaces provides a more scalable and cost-effective solution compared to Traditional Inter-VLAN Routing
- Syntax for creating a subinterface:
interface . - Subinterface number is typically associated with the VLAN ID
- Additional configuration is required for the management VLAN when using it on multiple switches not directly connected by trunk links
- Step necessary before assigning an IP Address: configuring the VLAN encapsulation for a subinterface using the
encapsulation dot1qcommand - IP Address assigned to a subinterface serves as the gateway for devices in the VLAN
- Command to assign an IP Address to a subinterface:
ip address - Subinterfaces are enabled by enabling the physical interface using the
no shutdowncommand
Subinterfaces vs Physical Interfaces
- Subinterfaces:
- One physical interface for many VLANs
- No bandwidth contention
- Less expensive
- More complex connection configuration
- Connected to trunk mode switch port
- Physical Interfaces:
- One physical interface per VLAN
- Bandwidth contention
- More expensive
- Less complex connection configuration
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