NIOS-DDI-EXPERT DUMPS | TEST NIOS-DDI-EXPERT CENTRES

NIOS-DDI-Expert Dumps | Test NIOS-DDI-Expert Centres

NIOS-DDI-Expert Dumps | Test NIOS-DDI-Expert Centres

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Infoblox Qualified NIOS DDI Expert - INE Sample Questions (Q36-Q41):

NEW QUESTION # 36
A Member in a DHCP Failover pair can assign addresses to new clients, when it is in which state(s)? (Select all that apply.)

  • A. COMMUNICATIONS-INTERRUPTED
  • B. NORMAL
  • C. PARTNER-DOWN
  • D. RECOVER DONE

Answer: A,B,C

Explanation:
Comprehensive and Detailed In-Depth Explanation:DHCP Failover states determine lease assignment:
* B (NORMAL):Both peers assign from their pools-full capacity for new clients. Correct.
* C (COMMUNICATIONS-INTERRUPTED):Surviving peer assigns new leases within MCLT limits.
Correct.
* D (PARTNER-DOWN):Single peer takes full pool, assigns new leases freely. Correct.
* A (RECOVER DONE):Post-recovery state before NORMAL-typically doesn't assign until synced, but documentation varies. Likely incorrect here unless transitional.
* Practical Example:In an INE lab, test each state, monitor new client IPs, and troubleshoot capacity limits.References:Infoblox NIOS Administrator Guide - DHCP Failover States; INE Course Content:
NIOS DDI DHCP Troubleshooting.


NEW QUESTION # 37
Which of the following statements about restarting Grid services are true? (Select all that apply.)

  • A. By default, the Grid restarts services every day
  • B. You can force service restart on a member
  • C. You can schedule service restarts
  • D. You can poll members to see which services will be restarted

Answer: B,C

Explanation:
Comprehensive and Detailed In-Depth Explanation:Restarting services (e.g., DNS, DHCP) on NIOS Grid members is a common administrative task, often required after configuration changes. Let's break down each option with detailed reasoning:
* A:"Poll members to see which services will be restarted" suggests proactively querying members for restart eligibility. NIOS doesn't offer a specific polling feature for this-administrators check service status (e.g., via Grid Manager > Members > Services) or logs, but there's no pre-restart polling tool.
Incorrect.
* B:In Grid Manager (Grid > Grid Manager > Members), you can select a member and click "Restart Services" with a "Force Restart" option, overriding any checks for necessity. This is useful in troubleshooting (e.g., clearing a hung DNS service). Correct.
* C:NIOS allows scheduling service restarts via the "Schedule Restart" option in Grid Manager, letting you specify a time to minimize disruption (e.g., off-hours). This aligns with Grid management best practices taught in INE. Correct.
* D:There's no default daily restart policy in NIOS. Restarts occur only when triggered by an admin or system event (e.g., upgrade). This would disrupt service unnecessarily if true. Incorrect.
* Practical Example:During an INE lab, you might force a restart on a member to resolve a DHCP failover issue or schedule a restart after updating a DNS zone to ensure propagation, reflecting real- world Grid troubleshooting.References:Infoblox NIOS Administrator Guide - Managing Grid Services; INE Course Content: NIOS DDI Grid Troubleshooting.


NEW QUESTION # 38
Any serial cable will work to connect to the serial port of an Infoblox appliance.

  • A. False
  • B. True

Answer: A

Explanation:
Comprehensive and Detailed In-Depth Explanation:Connecting to an Infoblox appliance's serial port for CLI access requires specific hardware compatibility, not just any serial cable. Here's why:
* Serial Port Specs:Infoblox appliances use a standard DB9 serial port with a default baud rate of 9600 bps, 8 data bits, no parity, 1 stop bit (8N1). The cable must match this configuration and the appliance's pinout (typically RS-232 standard).
* Cable Types:
* Astraight-through serial cablewon't work-it's for connecting dissimilar devices (e.g., DTE to DCE).
* Anull modem cable(with crossed transmit/receive pins) is required to connect a computer (DTE) to the appliance (DTE), ensuring proper signal flow.
* Practical Issue:Using an incompatible cable (e.g., lacking null modem crossover or incorrect connectors like RJ45) results in no communication, a common troubleshooting pitfall.
* INE Context:The course's troubleshooting labs emphasize correct serial access for diagnosing network- down scenarios, highlighting this specificity.
* Why False:Not all serial cables are null modem cables, and connector compatibility (e.g., DB9 vs.
USB adapters) matters. Thus, "any serial cable" is incorrect.
* Example:In an INE lab, you'd use a DB9 null modem cable with a terminal emulator (e.g., PuTTY) set to 9600 bps to access CLI logs after a Grid member failure.References:Infoblox NIOS Administrator Guide - Serial Console Access; INE Course Content: NIOS DDI Grid Troubleshooting.


NEW QUESTION # 39
From the CLI, the administrator must show the status of the DNS processes every 10 seconds for 1 minute.
Which command should the administrator use?

  • A. show process refresh 10 dns, then press enter after 60 seconds to exit
  • B. show process refresh 10 run for 60 dns
  • C. show process screen refresh 10 run for 60 dns
  • D. show process screen refresh 10 dns, then press enter after 6 refreshes to exit

Answer: A

Explanation:
Comprehensive and Detailed In-Depth Explanation:Monitoring DNS processes via NIOS CLI requires the show process command:
* Goal:Display DNS status every 10 seconds for 60 seconds (6 refreshes).
* Actual Command:NIOS CLI doesn't have a single command with "refresh" and "run for" syntax as listed. Closest is:
* show process dns (displays DNS service status).
* No native auto-refresh exists-admins use external tools (e.g., watch -n 10 "show process dns") or repeat manually.
* Options:
* A:"refresh 10 run for 60" isn't valid syntax. Incorrect.
* B:"refresh 10" isn't supported, but manually running show process dns and repeating (e.g., via script or Enter) is closest. Incorrect syntax but feasible intent.
* C/D:"screen refresh" isn't NIOS CLI-sounds like UNIX screen. Incorrect.
* Workaround:SSH with while true; do show process dns; sleep 10; done and Ctrl+C after 60s.
* Practical Example:In an INE lab, you'd script this to monitor DNS during a failover, troubleshooting service uptime.
References:Infoblox NIOS CLI Reference Guide - Show Commands; INE Course Content: NIOS DDI DNS Troubleshooting.


NEW QUESTION # 40
What is the purpose of the "Override" button in the context of settings inheritance?

  • A. To change the settings at a lower level, overriding the inherited values
  • B. To apply the same settings across all hierarchy levels simultaneously
  • C. To prevent any changes to settings at lower hierarchy levels
  • D. To reset all settings to their default values

Answer: A

Explanation:
Comprehensive and Detailed In-Depth Explanation:Settings inheritance in NIOS allows higher-level configurations (e.g., Grid-wide) to propagate to lower levels (e.g., members):
* Override Button:Found in Grid Manager (e.g., Grid > Members > Edit), it lets admins modify a setting at a lower level (e.g., member-specific DHCP options), breaking inheritance from the parent (e.
g., Grid).
* Why C:Overriding replaces the inherited value with a custom one for that object, tailoring behavior without affecting others.
* Options:
* A:Resetting to defaults is a separate action (e.g., "Revert to Default"). Incorrect.
* B:Preventing changes contradicts override's purpose-it enables change. Incorrect.
* C:Matches the function-alter lower-level settings. Correct.
* D:Applying uniformly isn't overriding-it's setting at a higher level. Incorrect.
* Practical Example:In an INE lab, you'd override a Grid-wide DNS TTL (3600s) to 300s on one member, test resolution, and troubleshoot inheritance conflicts.References:Infoblox NIOS Administrator Guide - Inheritance; INE Course Objective: NIOS DDI Grid Deployment.


NEW QUESTION # 41
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