A user tries to ping 192.168.1.100 from the command prompt on the 192.168.2.101 network but gets the following response: U.U.U.U. Which of the following needs to be configured for these networks to reach each other?
Step 1:
Understanding the question
The user is trying to ping a system that's present on a different network and fails to do so. The response 'U.U.U.U.' implies unreachable. This problem pertains to network communication.
Step 2:
Identifying the right configuration
To fix this issue, the correct network configurations need to be in place. Among the options provided, 'Default Gateway' is the most suitable one to allow communication between two different networks.
I typed question into chatgpt and got this...
B. Default gateway
The "U.U.U.U." response indicates that the device is unable to reach the target IP, and this is commonly due to the absence of a proper route between the networks. In this case, the two IP addresses belong to different networks (192.168.1.0/24 and 192.168.2.0/24). To allow communication between them, a default gateway must be configured so that traffic can be routed between these different subnets.
Here's a breakdown:
A. Network address translation: This is used to map private IP addresses to a public IP and vice versa, which is not the issue here.
B. Default gateway: Devices need a gateway to forward traffic to destinations outside their own subnet, making this the correct answer.
C. Loopback: Loopback is related to internal testing and not relevant in this context.
D. Routing protocol: While a routing protocol can be used in larger networks, this scenario more directly relates to configuring a default gateway for communication between two local networks.
The correct answer is D. Routing protocol.
Explanation:
Network Address Translation (NAT): NAT is used to translate private IP addresses to public IP addresses. It is not relevant in this scenario as both networks are using private IP addresses.
Default gateway: The default gateway is the IP address of the router that is used to send packets to other networks. It is configured on each device and is not the issue in this scenario.
Loopback: The loopback interface is a virtual interface with the IP address 127.0.0.1. It is used for testing network connectivity on the same device and is not relevant in this scenario.
Routing protocol: A routing protocol is used to exchange routing information between routers so that they can learn about the networks that are connected to each other. In this scenario, the two networks are not directly connected, so a routing protocol needs to be configured on the router that connects the two networks to allow them to reach each other.
The response “U.U.U.U.” indicates that the ping packets are being sent but not reaching the destination, likely due to a routing issue. To allow these networks to communicate, you need to configure routing between the two networks. Here are the steps you can take:
Router Configuration: Ensure that there is a router connecting the two networks (192.168.1.0/24 and 192.168.2.0/24) and that it has routes configured to forward traffic between them.
Routing Table: Add static routes on the router or enable dynamic routing protocols (like OSPF or RIP) to ensure that each network knows how to reach the other.
Firewall Rules: Check any firewalls between the networks to ensure they allow ICMP traffic (ping requests and replies) between the two subnets.
The response “U.U.U.U.” indicates that the ping packets are being sent but not reaching the destination, likely due to a routing issue. To allow these networks to communicate, you need to configure routing between the two networks. Here are the steps you can take:
Router Configuration: Ensure that there is a router connecting the two networks (192.168.1.0/24 and 192.168.2.0/24) and that it has routes configured to forward traffic between them.
Routing Table: Add static routes on the router or enable dynamic routing protocols (like OSPF or RIP) to ensure that each network knows how to reach the other.
Firewall Rules: Check any firewalls between the networks to ensure they allow ICMP traffic (ping requests and replies) between the two subnets.
The issue described suggests that the user's machine does not have a route to reach the destination network. The correct answer is D. Routing protocol.
To enable communication between different networks, routing protocols are essential. They allow routers to dynamically learn about the available paths to different networks and make routing decisions accordingly. By configuring a routing protocol, such as OSPF or RIP, on the routers connecting the 192.168.1.0/24 and 192.168.2.0/24 networks, they can exchange routing information and establish the necessary routes to reach each other's networks.
Correct answer: D - Routing Protocol
u.u.u.u. means unreachable. This means that the device was unable to find a route.
B. Setting up a default gateway would enable communication between devices on the same subnet, but as they are on different subnets they need routing protocols established so the device can be discovered on other networks.
D. Setting up routing protocols would enable things like neighbor discovery protocol or arp which would allow the route to the destination to be discovered and should fix the u.u.u.u. error encountered. This the most direct and scalable method.
Although you can set up the default gateway to be the router above the subnets mentioned, this isn't as direct and scalable, so the more appropriate answer would be D.
I looked at this question several times and wanted to explain my reasoning. I initially thought default gateway, because you need a default gateway to speak at all to other devices. When I looked into this question deeper, I realized that without proper routing protocols, it wouldn't matter if you had the gateway established. I also thought that because the user was trying to ping outside of their network, it would make sense that a default gateway would already have been established, and that they would have pinged the default gateway first before attempting to ping the outside network. This is actually a poor way to assess, because I have assumed that the user is a technician instead of the user that they are, and the first step in problem solving this question would be to address the 'door' aka the gateway, then to look at routing protocols after ensuring the gateway is setup. The correct answer is Default Gateway. I apologize.
The correct answer is D. Routing protocol.
The response U.U.U.U. typically indicates that the network path between the source and destination cannot be found. This is a routing issue. A routing protocol would need to be configured on the routers in the network to allow them to learn about each other’s networks and how to reach them.
The "U.U.U.U" response typically indicates that there is no route to the destination network. To enable communication between devices in different IP subnets (192.168.1.0/24 and 192.168.2.0/24), routing must be configured. Routing allows packets to be forwarded between different networks by determining the best path for packets to travel from the source to the destination.
A routing protocol, such as OSPF (Open Shortest Path First), RIP (Routing Information Protocol), or BGP (Border Gateway Protocol), can be configured on routers within the network to exchange routing information and build routing tables. This enables routers to learn about different network destinations and determine the appropriate paths to reach them.
The response “U.U.U.U” indicates that the packets are being transmitted, but a downstream router is having trouble routing them. This error message is usually seen when the destination network is unreachable.
Every client computer, or device on a network is logically connected by a given default gateway IP address that usually resides on the network router physically. The default gateway is necessary for routers & clients to communicate with each other.
I´d say is D Routing protocol. The "U.U.U.U" response typically indicates that there is no route to the destination network.
Even if the default gateway is necessary, to enable communication between the 192.168.1.100 and 192.168.2.101 networks, you need to configure routing between the networks.
Can someone explain better why is Default Gateway?
1.The default gateway is the router in your network that serves as both the entry and exit point for data between your network and other networks. It's life a doorway that the data must go through if you want to send data anywhere else other than your LAN.
2. With regard to the question at hand if you receive a response of U.U.U.U after pinging a destination it indeed means that the destination is unreachable. However before we can assume that the problem is that there is no route to the destination we must first make sure that we can even get out of our own networks. Once we have the Default gateway configured we can ping the destination again to see if we have connectivity. If not we can then check the routing table to make sure that we have a destination to the route.
3. Hence the reason the answer to this question is the "Default gateway" is because it's the first step in troubleshooting why we can not reach our destination.
D. Routing protocol
“While having a default gateway is necessary for devices on a network to send traffic to other networks, it alone does not solve the problem of two networks not being able to communicate with each other. In this specific case, the user is trying to ping a device on a different network, and receiving the response "U.U.U.U" indicates that there is no route to that network.”
For those confused on the routing protocols: Yes, if there are dynamic routing enabled then the routing protocols should set the correct route. But this is about the gateway being wrong
This section is not available anymore. Please use the main Exam Page.N10-008 Exam Questions
Log in to ExamTopics
Sign in:
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.
Upvoting a comment with a selected answer will also increase the vote count towards that answer by one.
So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.
[Removed]
Highly Voted 3 years, 2 months ago[Removed]
2 years, 6 months agoMacTPain10
2 years, 5 months agoTheStudiousPeepz
Highly Voted 2 years, 3 months agovinbra
1 year, 4 months agohuradazimi
Most Recent 7 months, 2 weeks agoky27
9 months agoCertBroAll
9 months agoLe081
9 months, 2 weeks agoLe081
9 months, 2 weeks agoCalvin_
1 year agoTheMichael
1 year agoTheMichael
1 year agostanislaus450
1 year, 1 month agoJaeide__X
1 year, 2 months agoPaula77
1 year, 5 months agoMehsotopes
1 year, 7 months agoCoolwolf
1 year, 7 months agokerppa
2 years ago[Removed]
1 year, 2 months agouser82
2 years, 1 month agoI_Know_Everything_KY
1 year, 7 months agovinbra
1 year, 4 months agofamco
2 years, 2 months agovinbra
1 year, 4 months ago