A Junos DHCP server is configured with a pool for 192.0.2.0/24. You need to deliver a different DNS server to a specific group of clients within this subnet based on their vendor class identifier. How can you achieve this?

Define a vendor-class option and use a 'match' statement to apply a different 'name-server' value to that class.

Use a firewall filter to modify the DNS server option in the DHCPACK for the specific clients.

Create a second pool for the same subnet and assign the different DNS server to that pool.

Configure the clients to request the specific DNS server using a DHCP option 119 request.

What is the primary purpose of a DHCP relay agent?

To assign IP addresses to clients on the same subnet

To filter DHCP messages based on security policies

To translate DHCP messages between IPv4 and IPv6

To forward DHCP messages between clients and servers on different subnets

Which sequence correctly describes the DHCP message exchange between a client and a server?

Discover, Request, Offer, Acknowledge

Request, Offer, Discover, Acknowledge

Discover, Offer, Request, Acknowledge

Offer, Discover, Request, Acknowledge

A client is unable to obtain an IP address from a Junos DHCP server. You suspect the client is not sending a DHCPDISCOVER. Which command would you use on the Junos device to confirm whether the DISCOVER message is being received?

Run 'show log dhcpd' to view the DHCP server logs.

Run 'ping 192.0.2.1' from the client to test connectivity.

Run 'show dhcp server binding' to see if the client's MAC address is in the binding table.

Run 'monitor traffic interface ge-0/0/1' and look for packets with UDP source port 68 and destination port 67.

A data center provides a managed hosting service. Each customer is assigned a separate VLAN and subnet. You are configuring a Junos device as the DHCP server for these customers. One customer requires a specific set of DHCP options that are not standard, including a custom boot file path. How should you configure this to ensure only that customer's clients receive the custom option?

Define the custom option globally and use a 'match' statement to apply it only to the customer's VLAN.

Define a custom option using the 'option' statement with the vendor option space and apply it to the customer's specific pool.

Use the 'boot-file' statement directly in the customer's pool configuration.

Configure the option in the global 'dhcp' stanza and rely on the client's vendor class identifier to filter it.

Juniper NetworksCertified Professional, Data Center (JNCIP-DC)

Domain 1Objective 2

Dynamic Host Configuration Protocol (DHCP) JN0-683 Practice Questions (Page 4)

Part of the Data Center Deployment and Management domain, which makes up ~11% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~4–7 in this domain), expect 1–2 from this objective — we provide 24 practice questions to prepare you well beyond it. (estimate)

24questions here

5free pages

6concepts

Questions 16–20

16expert · hard
A Junos DHCP server is configured with a pool for 192.0.2.0/24. You need to deliver a different DNS server to a specific group of clients within this subnet based on their vendor class identifier. How can you achieve this?
Select an answer first
17foundation · easy
What is the primary purpose of a DHCP relay agent?
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18foundation · easy
Which sequence correctly describes the DHCP message exchange between a client and a server?
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19application · medium
A client is unable to obtain an IP address from a Junos DHCP server. You suspect the client is not sending a DHCPDISCOVER. Which command would you use on the Junos device to confirm whether the DISCOVER message is being received?
Select an answer first
20application · medium
A data center provides a managed hosting service. Each customer is assigned a separate VLAN and subnet. You are configuring a Junos device as the DHCP server for these customers. One customer requires a specific set of DHCP options that are not standard, including a custom boot file path. How should you configure this to ensure only that customer's clients receive the custom option?
Select an answer first

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