Questions and Answers
What is the primary function of a default route in a router?
What type of route is a default route an example of?
What is the purpose of the 0.0.0.0 0.0.0.0 syntax in a routing table?
How does a router forward packets based on its routing table?
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What is the purpose of the ip route
command on a Cisco router?
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What happens when a router receives a packet with a destination IP address that is not in its routing table?
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What is the goal of a router in terms of forwarding IP packets?
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What is the result of adding a default route to a router's routing table?
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Why is it important for all routers in a network to have correct routing information?
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What is the purpose of the show ip route
command on a Cisco router?
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What is the purpose of adding a static route on Router_2?
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When Router_2 forwards a packet to Router_1, what remains unchanged in the packet's headers?
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What is the command used to add a static route on a Cisco device?
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What does Router_2 send to resolve the layer 2 address of Router_1?
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What is indicated when Router_2 has a routing entry with an 'S' code?
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What is the next hop IP address specified for reaching the 10.1.0 network from Router_2?
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Which network mask is used for the 10.1.0.0 network when adding the static route?
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What will Router_1 do when it receives a packet for 10.1.0.50?
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What aspect does the static route on Router_2 improve in terms of networking?
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What characterizes a static route in network configuration?
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When Router_2 receives a packet destined for 10.1.0.50, what does it first check?
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What is the likely outcome if Router_2 does not find a matching route in its routing table?
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For what purpose does a network administrator configure a static route?
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Which best describes the process of troubleshooting Router_2 when a packet is dropped?
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What type of address format is used to indicate both the network and host in the example provided?
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What action must be taken to allow Router_2 to forward a packet to 10.1.0.50?
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What is a potential drawback of using static routes in network environments?
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Why does the PC need a default route to respond to the ping request from the router?
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What is the primary difference between a static network route and a static host route?
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In the provided scenario, why did the router use its IP address 10.12.0.2 as the source address for the ping request?
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What is the role of the default gateway in the PC's response to the ping request from the router?
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What is the purpose of the static route configured for the 10.1.0.2 host address on the router?
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Which of the following statements accurately describes the difference between a 32-bit mask and a 24-bit mask in the context of static routes?
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Which of the following is NOT a benefit of using a static route?
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How does the router determine the next hop for a packet destined for the PC's IP address when using the static route for 10.1.0.2?
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Why would the router not need both the 24-bit network route and the 32-bit host route for the 10.1.0.0 network?
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What is the purpose of the default route configured on the PC?
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What is the significance of the address 0.0.0.0 in static routing?
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Which command is used to add a static route on a Windows computer?
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What does the '-p' option do when adding a static route in Windows?
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Why is the method of manually configuring static routes considered tedious?
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In static routing, what does adding a route for a network imply?
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What happens to a static route that is not marked as persistent after rebooting the computer?
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Which aspect makes static routing less suitable for larger networks?
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What is an example of a metric in static routing?
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When using the route command in Windows, what is necessary to display the current routing table?
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How does static routing utilize the concept of next hop?
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Study Notes
Static Routes
- A static route is manually configured by an administrator to instruct a device on how to forward a packet to reach a destination network.
- Example: PC1 on 10.1.0.0 network, with host address 10.1.0.50, and Router_2 needs to know how to forward packets to PC1.
Router_2 Configuration
- Initially, Router_2's routing table does not have a route to 10.1.0.0 network, and would drop packets destined for PC1.
- To resolve this, a static route is added on Router_2 to forward packets to 10.1.0.0 network via Router_1 at 10.12.0.1 (next hop).
Static Route Command
- The command to add a static route on a Cisco device is
ip route
. - Example:
ip route 10.1.0.0 255.255.255.0 10.12.0.1
Types of Static Routes
- Network static route: specifies a range of IP addresses (e.g., 10.1.0.0/24).
- Host static route: specifies an exact IP address (e.g., 10.1.0.2/32).
- Default static route: used when no other route matches the destination IP address (e.g., 0.0.0.0/0).
Default Route
- A default route is used when a router does not have a more specific route to a destination network.
- Example: on Router_1, a default route is added to forward packets to Router_2 at 10.12.0.2.
Static Routes on End Devices
- Static routes can also be configured on end devices (e.g., Windows computers).
- Example:
route add 157.0.0.0 mask 255.0.0.0 192.168.1.1
adds a static route to the 157 network via the next hop 192.168.1.1.
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Description
This quiz tests your understanding of static routes, their manual configuration and implementation in network topology. It covers the basics of static routes and their application.