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Exam 200-301 topic 1 question 953 discussion

Actual exam question from Cisco's 200-301

Question #: 953
Topic #: 1

A DHCP pool has been created with the name CONTROL. The pool uses the next to last usable IP address as the default gateway for the DHCP clients. The server is located at 172.16.32.15. What is the next step in the process for clients on the 192.168.52.0/24 subnet to reach the DHCP server?

A. ip helper-address 172.16.32.15
B. ip default-gateway 192.168.52.253
C. ip forward-protocol udp 137
D. ip detault-network 192.168.52.253

Show Suggested Answer

Suggested Answer: A 🗳️

by oatmealturkey at Feb. 14, 2023, 4:42 p.m.

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oatmealturkey

Highly Voted 2 years, 4 months ago

Selected Answer: A

The question states that the pool has been created and that it uses the next to last usable IP address as the default gateway for the DHCP clients. So that already implies that B is not the answer. But just to confirm once and for all, 192.168.52.253 is NOT the last usable address, that would be 192.168.52.254. The answer is A because we need to configure a helper address since the DHCP server is on a different subnet.

upvoted 17 times

Jacques1982

2 years, 4 months ago

I agree with you answer being A. The default gateway is the next to last so that would be .253 They already state that the default gateway have been set up so you would need a helper address

upvoted 3 times

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Zepar

Highly Voted 2 years, 1 month ago

To be honest the admin should stop answering the questions and let people decide. so many incorrect answers.

upvoted 8 times

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[Removed]

Most Recent 1 year, 3 months ago

Selected Answer: A

it´s A

upvoted 1 times

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picho707

1 year, 8 months ago

Selected Answer: A

Why is the admin not correcting the answers? Ridiculous.

upvoted 1 times

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Friday_Night

2 years, 1 month ago

a DHCP pool consists of usable IP addresses right? But in this question it states that the entire pool is for default gateway use? ("The pool uses the next to last usable IP address as the default gateway for the DHCP clients") I don't get this part...

upvoted 1 times

ebachka

1 year, 4 months ago

DHCP provides a pool of addresses, Subnet Mask, DNS address, Default Gateway address. The pool consists of 192.168.52.1 - 192.168.52.254 and the address 192.168.52.253 is excluded from the pool and is assigned to a router interface which is also assigned as the Default Gateway. However all of that is stated in the scenario, but the question is asking what is the next step for clients to receive addresses from the DHCP server that happens to be 172.16.32.15. So what you need to do is assign the command ip helper-address to a routing interface that is closest to the clients so the DIscover messages can pass the routing interface and reach the server which is on another subnet. My guess is you do the command ip helper-address on the default gateway interface as that is the interface that routes out of that subnet.

upvoted 2 times

PHIL95240

11 months, 3 weeks ago

Nothing says where the command is executed. Like you say if you run the command ip helper-address on the default gateway interface, you're right and clients could reach the dhcp server and obtain a dynamic IP address. The goal on this question is to know what do the command ip helper-address. The command "ip default-gateway 192.168.52.253" just define the router where the client have to connect before, it doesn't learn us how to reach the DHCP server with a DHCP Relay. I'm pretty sure the answer A : ip helper-address 172.16.32.15 is the good answer.

upvoted 1 times

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Bhrino

2 years, 1 month ago

Selected Answer: A

need to configure a DHCP Relay agent next to use it so Id sat a

upvoted 1 times

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DavidCisco

2 years, 2 months ago

Selected Answer: A

To reach the DHCP server (Para que lleguen ) no esta preguntando como se crea el pool si no que hay que hacer para que lleguen a el, osea la A

upvoted 2 times

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lucantonelli93

2 years, 4 months ago

Selected Answer: A

The correct answers it's A

upvoted 2 times

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lucantonelli93

2 years, 4 months ago

The correct answer it's A

upvoted 1 times

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Rynurr

2 years, 4 months ago

Selected Answer: A

I agree with oatmealturkey. Only "A" makes sense.

upvoted 2 times

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Jacques1982

2 years, 4 months ago

Difficult question. So it could be either A or B. I would say A because of you need the hosts on subnet 192.168.52.0 to get a DHCP address from the server. So you would need the ip-helper address. but... it says that the subnet of 192 needs to "reach" which doesnt mean it requests the IP but just reach it.. therefore a default gateway of .253 (which is the second to last on that subnet, .254 is the last usable)

upvoted 3 times

Stichy007

2 years, 4 months ago

i agree, next to last is the key term which is more .253, question is worded poorly

upvoted 3 times

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VictorCisco

2 years, 3 months ago

not difficult but stupid. Another one. What is the next step in the process for clients... of course on client devices we nee to put in dhcp helper command... of course , on the real exam I would answer A. But the question is dump..

upvoted 3 times

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