Curious about Actual Infoblox Certifications (NIOS-DDI-Expert) Exam Questions?

Correct : A, B, C

Comprehensive and Detailed In-Depth

Global Search in NIOS (top-right search bar) offers Basic and Advanced modes:

Basic Mode Filters: Allows quick searches across Grid objects using:

DNS Name: Search by FQDN (e.g., 'host.example.com'). Correct.

IP Address: Search by IPv4/IPv6 (e.g., '192.168.1.10'). Correct.

Record Type: Filter by DNS types (e.g., A, CNAME). Correct.

MAC Address: Available in Advanced mode (Data Management > Global Search > Advanced), not Basic mode, which focuses on DNS/IP basics. Incorrect here.

Usage: Enter a term (e.g., 'example.com'), select a filter, and view results (e.g., all A records).

Practical Example: In an INE lab, you'd use Basic mode to find all A records for 'lab.com,' troubleshoot DNS issues, and switch to Advanced for MAC searches.

Correct : C

Comprehensive and Detailed In-Depth

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.

Correct : B

Comprehensive and Detailed In-Depth

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.

Correct : A, C

Comprehensive and Detailed In-Depth

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.

Correct : B

Comprehensive and Detailed In-Depth

Clearing the NIOS database requires a precise CLI command:

B (reset database): Wipes DNS zones, DHCP leases, and Grid membership, but retains:

System logs (e.g., syslog, infoblox.log).

Licenses (e.g., reporting, DNSSEC).

Network settings (IP, hostname). Correct.

A: ''reset all'' isn't valid (see Q28). Incorrect.

C: ''reset config'' isn't a command---closest is set factory, which wipes everything. Incorrect.

D: reset all licenses clears licenses only, not the database. Incorrect.

Practical Example: In an INE lab, you'd run reset database, verify logs persist via show log, and reconfigure, testing Grid recovery.