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Infoblox Qualified NIOS DDI Expert - INE Sample Questions (Q71-Q76):

NEW QUESTION # 71
Which of the following statements about restarting Grid services are true? (Select all that apply.)

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

Answer: A,D

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 # 72
What does VRRP stand for?

A. Virtual Router Redundancy Protocol
B. Variable Rate Response Packet
C. Variable Route Recovery Protocol
D. Vital Router Response Protocol

Answer: A

Explanation:
Comprehensive and Detailed In-Depth Explanation:VRRP is the protocol Infoblox uses for HA:
* D:Virtual Router Redundancy Protocol(RFC 3768) provides IP redundancy by sharing a virtual IP (VIP) between routers (or NIOS nodes). Correct.
* A/B/C:Fictional acronyms-VRRP is a well-defined standard. Incorrect.
* Practical Example:In an INE lab, you'd configure VRRP for an HA pair, test failover, and troubleshoot VRRP packets, reinforcing HA concepts.References:RFC 3768 - VRRP; Infoblox NIOS Administrator Guide - HA; INE Course Content: NIOS DDI Grid Deployment.

NEW QUESTION # 73
What does the CLI command "reset all" do?

A. It erases the database, network settings, and log files on the appliance
B. It erases the appliance back to factory default
C. This is not a valid CLI command
D. It erases the database, licenses, and network settings on the appliance

Answer: C

Explanation:
Comprehensive and Detailed In-Depth Explanation:The NIOS CLI offers specific "reset" commands for appliance management, but "reset all" isn't one of them. Let's explore:
* Valid Commands:
* reset database: Clears the NIOS database (DNS, DHCP data) but keeps network settings and licenses.
* reset all licenses: Resets licensing, requiring re-registration.
* set factory: Performs a full factory reset, wiping everything (database, network, logs) to defaults.
* "reset all":This isn't documented or recognized in NIOS CLI. Typing it yields an error (e.g., "Invalid command").
* Options Analysis:
* A:Factory reset is set factory, not "reset all." Incorrect.
* B/C:No single "reset all" command combines these actions-specific resets are separate.
Incorrect.
* D:Matches the lack of this command in NIOS. Correct.
* Practical Example:In an INE lab, you'd use reset database to clear a test Grid member, but "reset all" would fail, teaching CLI precision in troubleshooting.References:Infoblox NIOS CLI Reference Guide; INE Course Content: NIOS DDI Grid Troubleshooting.

NEW QUESTION # 74
A customer has the following Grid: Grid Master HA pair, three HA Grid Members, one single Grid Member.
The customer has defined custom Upgrade Groups based on the physical location of the appliances. After the administrator clicks Upgrade, which node will go through the upgrade process first?

A. All of the Member passive nodes
B. Depends on the configuration of Upgrade Groups
C. Grid Master active node
D. Grid Master passive node

Answer: B

Explanation:
Comprehensive and Detailed In-Depth Explanation:In NIOS, the upgrade process for a Grid can be customized usingUpgrade Groups, which allow administrators to define the order and timing of upgrades for Grid members based on criteria like location or role. By default, the Grid Master (active node) upgrades last to ensure continuity, and passive nodes in HA pairs often upgrade before active nodes. However, when custom Upgrade Groups are defined (as in this scenario, based on physical location), the upgrade sequence follows the administrator's configuration rather than a fixed rule. Thus, the first node to upgrade depends entirely on how the Upgrade Groups are prioritized in the upgrade schedule. This flexibility is a focus of the INE course's Grid deployment section.References:Infoblox NIOS Administrator Guide - Software Upgrades; INE Course Objective: NIOS DDI Grid Deployment.

NEW QUESTION # 75
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 screen refresh 10 run for 60 dns
C. show process 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 # 76
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