Cisco 200-301 Exam - Topic 20 Question 59 Discussion

Actual exam question for Cisco's 200-301 exam

Question #: 59
Topic #: 20

Configure IPv4 and IPv6 connectivity between two routers. For IPv4, use a /28 network from the 192.168.1.0/24 private range. For IPv6, use the first /64 subnet from the 2001:0db8:aaaa::/48 subnet.

1. Using Ethernet0/1 on routers R1 and R2, configure the next usable/28 from the 192.168.1.0/24 range. The network 192.168.1.0/28 is unavailable.

2. For the IPv4 /28 subnet, router R1 must be configured with the first usable host address.

3. For the IPv4 /28 subnet, router R2 must be configured with the last usable host address.

4. For the IPv6 /64 subnet, configure the routers with the IP addressing provided from the topology.

5. A ping must work between the routers on the IPv4 and IPv6 address ranges.

AExplanation:
Answer as below configuration:
on R1
config terminal
ipv6 unicast-routing
inter eth0/1
ip addre 192.168.1.1 255.255.255.240
ipv6 addre 2001:db8:aaaa::1/64
not shut
end
copy running start
on R2
config terminal
ipv6 unicast-routing
inter eth0/1
ip address 192.168.1.14 255.255.255.240
ipv6 address 2001:db8:aaaa::2/64
not shut
end
copy running start
---------------------
for test from R1
ping ipv6 2001:db8:aaaa::1
for test from R2
ping ipv6 2001:db8:aaaa::2

Show Suggested Answer

Suggested Answer: A

by Antione at Nov 19, 2022, 10:48 PM

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Lachelle

5 months ago

I thought we couldn't use 2001:db8 for real networks?

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Xuan

5 months ago

Yup, 2001:db8:aaaa::1 for R1 and ::2 for R2 is spot on!

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Lucille

5 months ago

Wait, is 192.168.1.14 really the last usable? Seems off.

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Barney

5 months ago

Totally agree, and the first usable for R1 should be 192.168.1.1.

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Shayne

5 months ago

The /28 subnet for IPv4 gives us 16 addresses, right?

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Tiffiny

5 months ago

I think we need to use the command "ipv6 unicast-routing" on both routers, but I’m a bit confused about the interface configuration part.

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Malcolm

5 months ago

For R2, I believe the last usable address in the /28 subnet would be 192.168.1.14, but I might need to double-check that.

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Rozella

5 months ago

I remember practicing a similar question where we had to configure IPv6 addresses, but I can't recall the exact command for enabling IPv6 routing.

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Lavonna

6 months ago

I think the first usable address for the IPv4 /28 subnet should be 192.168.1.1, but I'm not entirely sure if I got the subnetting right.

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Melodie

6 months ago

I'm a little confused by the wording of the question. Is this a failover or a switchover? The options seem to mix those two concepts, so I'm not entirely sure which one is the most appropriate solution. I'll need to think this through carefully.

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Ma

6 months ago

Okay, I've got this. The key benefit of a structured induction is that it reduces the risk of new hires picking up bad habits or making basic mistakes. That's definitely the most important advantage, so I'll go with option C.

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Lasandra

6 months ago

I'm leaning towards "vicarious liability" for the first part, but I remember we discussed how contracts could define providers as independent contractors to limit liability.

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