Infoblox - NIOS-DDI-Expert - Infoblox Qualified NIOS DDI Expert - INE Useful Study Group

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Infoblox Qualified NIOS DDI Expert - INE Sample Questions (Q17-Q22):

NEW QUESTION # 17
You need to reset the database on a Grid member and disconnect it from the Grid, but you would like it to preserve its current network settings. What command can you use to do this?

A. reset all
B. reset member
C. reset database
D. It is possible to reset without losing network settings

Answer: C

Explanation:
Comprehensive and Detailed In-Depth Explanation:Resetting a Grid member's database while retaining network settings requires a targeted CLI command:
* Requirements:Clear DNS/DHCP/Grid data, disconnect from the Grid, keep IP/hostname for reconnection or standalone use.
* Commands:
* reset database:Wipes the NIOS database (zones, leases, Grid membership), leaving network settings (IP, gateway, etc.) intact. The member becomes standalone, requiring rejoining if needed.
* set factory:Full reset to factory defaults, erasing everything (database, network, licenses).
* Options:
* A (reset all):Not a valid command (see Q28). Incorrect.
* B (reset database):Meets all criteria-clears database, disconnects, preserves network. Correct.
* C (reset member):Not a specific CLI command; vague term. Incorrect.
* D:Misinterprets the question as a statement-it's possible with B, but this isn't a command.
Incorrect.
* Practical Example:In an INE lab, you'd run reset database on a test member, verify its IP persists via show network, and troubleshoot rejoining the Grid.References:Infoblox NIOS CLI Reference Guide - Reset Commands; INE Course Content: NIOS DDI Grid Troubleshooting.

NEW QUESTION # 18
To debug possible database issues on an Infoblox appliance, which file should an administrator review?

A. infoblox.log file in the support bundle
B. messages file in the support bundle
C. messages file downloaded via the GUI
D. infoblox.log file downloaded via the GUI

Answer: A

Explanation:
Comprehensive and Detailed In-Depth Explanation:Debugging database issues (e.g., sync failures, corruption) requires detailed logs specific to NIOS operations. Here's the breakdown:
* A (messages file in support bundle):The "messages" file contains general system logs (e.g., kernel events), not NIOS-specific database activity. It's less relevant here. Incorrect.
* B (infoblox.log via GUI):The GUI allows downloading logs (Grid > Logs > Download), but these are often filtered or summarized, not the raw, comprehensive database logs needed for deep debugging.
Incorrect.
* C (infoblox.log in support bundle):The "infoblox.log" in a support bundle (generated via CLI or GUI:
Grid > Support Bundle) is the primary NIOS application log, capturing detailed database events (e.g., bloxSync errors, transaction failures). This is the go-to file for database troubleshooting, as emphasized in INE labs. Correct.
* D (messages via GUI):Similar to A, this is a general system log, not NIOS-specific, and lacks database granularity. Incorrect.
* Practical Example:In an INE troubleshooting scenario, you'd download a support bundle after a Grid sync failure, extract "infoblox.log," and search for database error codes to diagnose the issue.
References:Infoblox NIOS Administrator Guide - Logging and Support Bundles; INE Course Content:
NIOS DDI Grid Troubleshooting.

NEW QUESTION # 19
The only way to get access to all of the possible diagnostic CLI commands is to connect a serial cable to the serial port of the Infoblox appliance.

A. False
B. True

Answer: A

Explanation:
Comprehensive and Detailed In-Depth Explanation:Infoblox NIOS provides a Command Line Interface (CLI) for diagnostics, accessible via multiple methods, not solely the serial port:
* Serial Console:Connecting a serial cable (9600 baud) to the appliance's serial port grants CLI access, useful for physical troubleshooting or when network access is down. It provides full diagnostic commands (e.g., "show process," "set debug").
* SSH:Remote access via SSH (default port 22) to the appliance's management IP offers the same CLI, assuming network connectivity and credentials are available. This is equally comprehensive.
* Key Point:Both methods provide access to all diagnostic commands (e.g., "show log," "reset database"), debunking the "only way" claim. The serial port is just one option, often used in failure scenarios (e.g., network outage), but SSH is more common day-to-day.
* INE Context:The course covers CLI troubleshooting, emphasizing both serial and SSH access for Grid diagnostics, making this a practical distinction.
* Why False:The statement's exclusivity is incorrect-multiple access methods exist.References:
Infoblox NIOS Administrator Guide - CLI Access; INE Course Content: NIOS DDI Grid Troubleshooting.

NEW QUESTION # 20
Which syslogs can be used to view boot-up messages from the last reboot of an Infoblox appliance? Choose 3 answers

A. Syslog via the remote console
B. Syslog via the serial console
C. Syslog via the NIOS GUI
D. Syslog that has been redirected to an external syslog server

Answer: A,B,D

Explanation:
Comprehensive and Detailed In-Depth Explanation:Boot-up messages from an Infoblox appliance are logged in thesyslog, which records system events like reboots. These logs can be accessed in multiple ways:
* A (Remote Console):SSH or remote console access (e.g., via "show log syslog" CLI command) shows syslog entries, including boot messages.
* B (External Syslog Server):If configured, NIOS redirects syslog to an external server, preserving boot messages for review.
* C (Serial Console):Direct serial connection during boot captures real-time syslog output, including startup messages.
* D (NIOS GUI):The GUI provides a syslog viewer (Grid > Grid Manager > Logs), but it's not designed for real-time boot message capture and may not show full historical detail unless explicitly exported.
The INE course emphasizes troubleshooting via logs, including these methods.References:Infoblox NIOS Administrator Guide - Logging; INE Course Content: NIOS DDI Grid Troubleshooting.

NEW QUESTION # 21
An administrator is using the Management port with a Grid Master HA pair. The GUI can be accessed from the HA pair VIP.

A. False
B. True

Answer: A

Explanation:
Comprehensive and Detailed In-Depth Explanation:Management port and HA pair in NIOS:
* Setup:The MGMT port (separate from LAN1) is for out-of-band access (e.g., SSH, GUI) to individual nodes, not the HA VIP.
* VIP Role:The Virtual IP (LAN1) serves DNS/DHCP and GUI access in-band, not via MGMT.
* Why False:MGMT port IPs (e.g., 192.168.2.101, 192.168.2.102) are node-specific-VIP (e.g.,
192.168.1.100) isn't routable via MGMT. GUI access uses LAN1 VIP or node IPs, not MGMT VIP.
* Practical Example:In an INE lab, access GUI via LAN1 VIP (not MGMT), test MGMT SSH, and troubleshoot port confusion.References:Infoblox NIOS Administrator Guide - Management Port; INE Course Content: NIOS DDI Grid Deployment.

NEW QUESTION # 22
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