FREE PDF 2025 INFOBLOX NEWEST NIOS-DDI-EXPERT: FRESH INFOBLOX QUALIFIED NIOS DDI EXPERT - INE DUMPS

Free PDF 2025 Infoblox Newest NIOS-DDI-Expert: Fresh Infoblox Qualified NIOS DDI Expert - INE Dumps

Free PDF 2025 Infoblox Newest NIOS-DDI-Expert: Fresh Infoblox Qualified NIOS DDI Expert - INE Dumps

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Infoblox Qualified NIOS DDI Expert - INE Sample Questions (Q51-Q56):

NEW QUESTION # 51
What protocol and port does DHCP Failover use to keep lease information synchronized between two peers?

  • A. Default is TCP 647, can be user configured
  • B. Default is UDP 647, can be user configured
  • C. Default is UDP 1194, can be user configured
  • D. Default is TCP 1194, can be user configured

Answer: A

Explanation:
Comprehensive and Detailed In-Depth Explanation:Infoblox NIOS implements DHCP Failover based on the IETF DHCP Failover protocol (draft standard), usingTCP port 647by default for lease synchronization between peers. This port facilitates the exchange of lease data to ensure both the primary and secondary servers maintain consistent states (e.g., NORMAL, COMMUNICATIONS-INTERRUPTED). TCP is used for reliability, as lease sync requiresguaranteed delivery. The port can be changed by the administrator if needed (e.g., for firewall rules), making "user configured" accurate. Options A and B (port 1194) are incorrect-1194 is commonly associated with OpenVPN, not DHCP Failover. Option D is wrong because it's TCP, not UDP.
This is a key DHCP troubleshooting topic in the INE course.References:Infoblox NIOS Administrator Guide
- DHCP Failover; INE Course Content: NIOS DDI DHCP Troubleshooting.


NEW QUESTION # 52
How are Workflow Approval notifications delivered in NIOS?

  • A. Via SMS
  • B. Via email
  • C. Via in-app notifications
  • D. Via push notifications

Answer: B

Explanation:
Comprehensive and Detailed In-Depth Explanation:Workflow Approval in NIOS enforces change control with notifications:
* Mechanism:When a requester submits a change (e.g., new DNS record), approvers are notified via email, configured in Grid Properties (Grid > Grid Manager > Grid Properties > Email).
* Details:SMTP server settings (e.g., IP, port, credentials) must be defined for delivery. No other methods are natively supported.
* Options:
* A:SMS isn't supported-requires external integration. Incorrect.
* B:Push notifications aren't part of NIOS GUI or mobile app (none exists). Incorrect.
* C:Email is the documented, sole method. Correct.
* D:In-app notifications don't exist-Grid Manager relies on email. Incorrect.
* Practical Example:In an INE lab, you'd configure an SMTP server, request a zone change, and troubleshoot email delivery failures for approval, testing Grid management.References:Infoblox NIOS Administrator Guide - Workflow Approval Notifications; INE Course Objective: NIOS DDI Grid Deployment.


NEW QUESTION # 53
What does the Stealth option do on a name server for a DNS Zone?

  • A. Prevents the name server from caching responses to queries
  • B. Prevents automatic zone transfers to or from the server
  • C. Prevents the name server from responding to outside queries
  • D. Prevents NS records from being automatically added to the zone file for that server

Answer: D

Explanation:
Comprehensive and Detailed In-Depth Explanation:Stealth option in NIOS DNS (Data Management > DNS > Zone > Name Servers):
* A:"Stealth" hides the server from NS records in the zone file, making it authoritative but unlisted- useful for internal servers. Correct.
* B:Zone transfers are controlled by ACLs, not Stealth. Incorrect.
* C:Caching is unrelated-Stealth affects visibility, not function. Incorrect.
* D:Response behavior isn't altered-still answers queries. Incorrect.
* Practical Example:In an INE lab, set a stealth NS, verify NS record absence, and troubleshoot external visibility.References:Infoblox NIOS Administrator Guide - DNS Name Servers; INE Course Content:
NIOS DDI DNS Troubleshooting.


NEW QUESTION # 54
A customer reports difficulty joining a standalone High Availability (HA) pair. How should the customer diagnose the issue? Choose 2 answers

  • A. Reset everything before trying to re-join
  • B. Use error messages recorded in syslog and debug log on both nodes
  • C. Use traffic capture on the first node (the active node)
  • D. Use traffic capture on both nodes

Answer: B,D

Explanation:
Comprehensive and Detailed In-Depth Explanation:Joining a standalone HA pair to a Grid involves network, authentication, and sync issues. Best diagnostics:
* A:Syslog (show log syslog) and debug logs (e.g., infoblox.log in support bundle) on both nodes reveal errors (e.g., "Join failed: invalid secret"). Essential for root cause. Correct.
* C:Traffic capture (tcpdump via CLI) on both nodes checks VRRP, bloxSync, and network issues (e.g., blocked ports). Comprehensive view of communication. Correct.
* B:Capturing only the active node misses passive node issues (e.g., firewall blocking sync). Incomplete.
Incorrect.
* D:Resetting erases logs and configs, hindering diagnosis-last resort, not initial step. Incorrect.
* Practical Example:In an INE lab, you'd check syslog for "sync failed," run tcpdump -i eth0 port 443 on both, and troubleshoot a blocked SSL port.References:Infoblox NIOS Administrator Guide - HA Troubleshooting; INE Course Content: NIOS DDI Grid Troubleshooting.


NEW QUESTION # 55
An administrator has both Avaya and Cisco VoIP phones that require the same DHCP option. What can the administrator do with these two different models of phones?

  • A. The administrator must contact the vendors to update the devices to use different DHCP options
  • B. Both device types can be online at the same time, but they must be on different subnets
  • C. Only one type of device can be online at any given time
  • D. Both device types can be on the same range through the use of separate Option Filters

Answer: D

Explanation:
Comprehensive and Detailed In-Depth Explanation:NIOS supports advanced DHCP configuration, including Option Filters, which match client requests based on DHCP options (e.g., Option 60 for Vendor Class Identifier). If Avaya and Cisco VoIP phones require the same DHCP option (e.g., Option 66 for TFTP server), the administrator can use separate Option Filters to distinguish the devices by their unique identifiers (like Vendor Class IDs: "Avaya" vs. "Cisco") and assign them IPs from the same range with the shared option. This allows both device types to coexist on the same subnet and range, eliminating the need for segregation (Option B) or vendor intervention (Option D). Option A is overly restrictive and incorrect. This is a practical DHCP troubleshooting scenario in the INE course.References:Infoblox NIOS Administrator Guide - DHCP Option Filters; INE Course Content: NIOS DDI DHCP Troubleshooting.


NEW QUESTION # 56
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