The Ideal Quiz On CCNA 2 Chapter

By examining the output of the "show ip interface brief" command, one can determine the IP address assigned to each interface. This command provides a summary of all interfaces on a device and their respective IP addresses. Other pieces of information such as interface speed and duplex, interface MTU, errors, and interface MAC address may not be available from this specific command.

In this scenario, the rate configured on the DCE (Data Communications Equipment) determines the clock rate. The DCE is responsible for providing clocking to the DTE (Data Terminal Equipment) device. The DTE device relies on the clock signal provided by the DCE. Therefore, the clock rate is determined by the rate configured on the DCE.

When the outgoing interface is not available, the router is unable to forward traffic through that interface. As a result, the static route entry associated with that interface becomes invalid and is removed from the routing table. This ensures that the router does not continue to use an invalid route for forwarding packets.

The most likely cause for the line protocol being down is that no clock rate has been set. The line protocol being down indicates that there is a physical layer issue with the serial interface. In this case, it suggests that the clock rate, which is responsible for synchronizing the transmission between the routers, has not been configured on the interface. Without a clock rate, the interface cannot establish a proper connection with the remote router, resulting in the line protocol being down.

CDP (Cisco Discovery Protocol) is a Cisco proprietary protocol used to gather information about directly connected Cisco devices. The graphic shown indicates that Router A is directly connected to routers B and C. By default, CDP advertisements are sent by routers to their directly connected neighbors. Therefore, Router A will receive CDP advertisements from routers B and C. This allows Router A to gather information about these neighboring routers.

A modem and a CSU/DSU device are responsible for converting the data from the WAN service provider into a form acceptable by the router. A modem is used to modulate and demodulate the data signals between the WAN service provider and the router, while a CSU/DSU device is responsible for converting the digital signals from the WAN service provider into a format that can be understood by the router. Both devices play a crucial role in ensuring that the data can be properly transmitted and received by the router.

The given networks range from 172.16.0.0/24 to 172.16.7.0/24. To summarize these networks, we need to find a network address that can include all the addresses within this range. The /21 subnet mask allows for a range of 8 subnets, each with 2048 addresses. This is sufficient to cover the range from 172.16.0.0/24 to 172.16.7.0/24. Therefore, the correct answer is 172.16.0.0/21.

A static route with an administrative distance of 1 and a metric of 0 means that it is a manually configured route with a higher priority than other routes in the routing table. The administrative distance of 1 indicates that it is more reliable and preferred over other routes with higher administrative distances. The metric of 0 suggests that there is no cost associated with this route, making it the most efficient and preferred option for routing traffic.

The /8 in the route to the 10.0.0.0 network indicates the number of consecutive bits, from the left, in the destination IP address of a packet that must match 10.0.0.0 to use that route. This is known as the subnet mask or prefix length, and it determines the range of IP addresses that are considered part of the network. In this case, the /8 indicates that the first 8 bits (or the first octet) of the destination IP address must match 10.0.0.0 for the route to be used.

The "show cdp neighbors" command on a router displays information about neighboring devices that are discovered using the Cisco Discovery Protocol (CDP). The "platform" option shows the type of hardware platform the neighboring device is using. The "holdtime" option displays the time that the CDP information will be retained before it is considered invalid. The "local interface" option shows the interface on the local router that is connected to the neighboring device.

The correct answer is "ip route 172.16.0.0 255.255.0.0 S0/0/0". This is the correct static route configuration that should be added to Router1 in order for host A to reach host B on the 172.16.0.0 network. The "ip route" command is used to configure static routes, and in this case, it specifies the destination network 172.16.0.0 with a subnet mask of 255.255.0.0. The next-hop interface for this route is S0/0/0, indicating that the traffic should be sent out through that interface.

To establish connectivity between the two Ethernet networks, the correct set of commands is to configure a static route on R1 to reach the 10.1.2.0/24 subnet via the next-hop IP address 192.168.0.2, and configure a static route on R2 to reach the 10.1.1.0/24 subnet via the next-hop IP address 192.168.0.1. This ensures that traffic from the 10.1.1.0/24 subnet will be forwarded to R2 and traffic from the 10.1.2.0/24 subnet will be forwarded to R1, allowing hosts on both subnets to communicate with each other.

CDP (Cisco Discovery Protocol) is a Cisco proprietary protocol that operates at the data link layer. It starts up automatically on Cisco devices and allows them to detect directly connected neighbor devices that also use CDP. It facilitates the exchange of information between these devices, allowing them to learn about each other's capabilities and network addresses. Additionally, CDP allows systems to learn about each other even if different network layer protocols are configured, making it compatible with various network setups. However, CDP does not create a topology map of the entire network or forward advertisements about routes for faster convergence.

The WinterPark router is configured with a default route using the command "ip route 0.0.0.0 0.0.0.0 192.168.146.1", which means that any traffic not matching a specific route will be sent to the next-hop IP address of 192.168.146.1. The Altamonte router is configured with a specific route for the LAN network 10.0.234.0/24 using the command "ip route 10.0.234.0 255.255.255.0 192.168.146.2", which means that any traffic destined for that network will be sent to the next-hop IP address of 192.168.146.2. Additionally, the Altamonte router is also configured with a default route using the command "ip route 0.0.0.0 0.0.0.0 s0/1", which means that any traffic not matching a specific route will be sent out of the serial interface s0/1. This configuration allows both routers to deliver packets from their respective LANs and direct all other traffic to the Internet.

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