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NIOS-DDI-Expert Latest Exam Cram & NIOS-DDI-Expert Exam Certification

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Infoblox Qualified NIOS DDI Expert - INE Sample Questions (Q65-Q70):

NEW QUESTION # 65
Which system provides database synchronization to the passive node of an HA pair Grid Member?

A. The Active Node of the HA pair
B. The Grid Master
C. The DNS Primary
D. The Grid Master Candidate

Answer: A

Explanation:
Comprehensive and Detailed In-Depth Explanation:In an Infoblox High Availability (HA) pair, the active node maintains the live database and services (DNS, DHCP, etc.), while the passive node remains on standby, ready to take over if needed. Database synchronization between the active and passive nodes is handled directly by the active node using thebloxSyncmechanism over a secure connection (typically SSL). The Grid Master oversees Grid-wide synchronization, but within an HA pair, the active node is responsible for keeping the passive node's database up-to-date. The Grid Master Candidate (GMC) and DNS Primary are unrelated to this specific HA pair sync process. This is a key troubleshooting point in the INE course.References:Infoblox NIOS Documentation - HA Configuration; INE Course Content: NIOS DDI Grid Troubleshooting.

NEW QUESTION # 66
When controlling Grid Members under Grid > Grid Manager > Members, what control options are available from the Toolbar? Choose 3 answers

A. Restart GUI
B. Reboot
C. Suspend
D. Restart

Answer: B,C,D

Explanation:
Comprehensive and Detailed In-Depth Explanation:Grid Manager Toolbar (Grid > Members) offers member controls:
* A (Reboot):Reboots the appliance-full restart. Correct.
* B (Restart):Restarts services (e.g., DNS, DHCP) without reboot. Correct.
* C (Suspend):Pauses services-useful for maintenance. Correct.
* D:"Restart GUI" isn't a member-level option-GUI runs on GM, not per member. Incorrect.
* Practical Example:In an INE lab, reboot a member, restart services, suspend another, and troubleshoot impacts.References:Infoblox NIOS Administrator Guide - Member Controls; INE Course Content:
NIOS DDI Grid Troubleshooting.

NEW QUESTION # 67
When viewing NTP statistics in NIOS CLI, you notice an entry has the asterisk symbol () next to it. What does the asterisk symbol () signify?

A. It means this NTP server is unreachable
B. It means the Member is synchronized to this NTP server
C. It means this NTP server is offline
D. It means the NTP service is disabled for the Member

Answer: B

Explanation:
Comprehensive and Detailed In-Depth Explanation:NTP (Network Time Protocol) synchronization is critical for Grid operations, and NIOS CLI provides status via show ntp:
* Output Format:Lists NTP servers with symbols:
* *: The server the member is currently synchronized to (stratum and offset shown).
* +: Candidate server (reachable but not primary).
* -: Unreachable or rejected server.
* Asterisk Meaning:Indicates the active sync source, ensuring time consistency across the Grid.
* Options:
* A:Unreachable servers get a "-" or no symbol, not "*". Incorrect.
* B:Matches NTP convention and NIOS behavior-synchronized server. Correct.
* C:Offline servers don't sync and lack "*". Incorrect.
* D:Disabled NTP would prevent stats display, not mark a server. Incorrect.
* Practical Example:In an INE lab, you'd run show ntp, see "*pool.ntp.org," and troubleshoot time drift if the asterisk shifts, testing Grid stability.References:Infoblox NIOS CLI Reference Guide - NTP Commands; INE Course Content: NIOS DDI Grid Troubleshooting.

NEW QUESTION # 68
Which action can an administrator safely perform during an upgrade?

A. Update DNS views
B. Setting time zone for a Grid Member
C. Modify Member DHCP properties
D. None of the above

Answer: B

Explanation:
Comprehensive and Detailed In-Depth Explanation:During a NIOS software upgrade (Grid > Upgrade), the Grid enters a sensitive state where certain actions risk instability. Let's evaluate:
* Upgrade Phases:Upload, Distribute, Test, Upgrade. Members reboot and sync, requiring database consistency.
* Options:
* A:Updating DNS views modifies the database, which could conflict with the upgrade's database sync or cause service interruptions. Unsafe.
* B:Changing DHCP properties (e.g., ranges) alters live configurations, risking lease sync issues during member reboots. Unsafe.
* C:Setting the time zone (Grid > Members > Edit > Basic) is a non-service-affecting change, stored locally and applied post-reboot. Safe during upgrades, as it doesn't impact DNS/DHCP
/Grid data. Correct.
* D:Incorrect, as C is a viable safe action.
* Practical Example:In an INE lab, you'd adjust a member's time zone during an upgrade to align logs, troubleshooting without disrupting the process.References:Infoblox NIOS Administrator Guide - Upgrade Best Practices; INE Course Content: NIOS DDI Grid Deployment.

NEW QUESTION # 69
What configuration can a Grid Master be? (Select all that apply.)

A. A virtual appliance
B. A Grid Candidate Failover node
C. A High Availability pair
D. A single appliance

Answer: A,C,D

Explanation:
Comprehensive and Detailed In-Depth Explanation:The Grid Master (GM) manages the NIOS Grid's database and coordination. Its possible configurations are:
* A (Virtual Appliance):A GM can be a vNIOS instance (e.g., on VMware), fully supported for virtualized deployments. Correct.
* B (Single Appliance):A standalone physical NIOS appliance (e.g., IB-4000) can serve as GM.
Common in smaller Grids. Correct.
* C (High Availability Pair):A GM can be an HA pair (two appliances sharing a VIP), ensuring redundancy. Correct.
* D (Grid Candidate Failover Node):Misnomer-Grid Master Candidate (GMC) is a separate role, not the GM itself. A GMC can be promoted to GM, but it's not a GM configuration. Incorrect.
* Setup:Configured via Grid Manager (Grid > Grid Properties).
* Practical Example:In an INE lab, you'd deploy a vNIOS GM, test HA failover, and troubleshoot sync, exploring deployment options.References:Infoblox NIOS Administrator Guide - Grid Master Setup; INE Course Objective: NIOS DDI Grid Deployment.

NEW QUESTION # 70
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