Infoblox NIOS-DDI-Expert Infoblox Qualified NIOS DDI Expert - INE Exam Practice Test

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Total 80 questions
Question 1

How many IP addresses are required to configure a High Availability (HA) pair?



Answer : B

Comprehensive and Detailed In-Depth

An HA pair in NIOS requires:

1. Virtual IP (VIP): Shared address for services (e.g., 192.168.1.100).

2. Active Node IP: Physical address (e.g., 192.168.1.101).

3. Passive Node IP: Physical address (e.g., 192.168.1.102).

Total: 3 IPs.

Options:

A: 2 IPs insufficient---misses individual node IPs. Incorrect.

B: 3 IPs match HA design (VIP + 2 nodes). Correct.

C/D: Extra IPs (e.g., MGMT) are optional, not required. Incorrect.

Practical Example: In an INE lab, configure VIP 10.0.0.1, active 10.0.0.2, passive 10.0.0.3, test failover, and troubleshoot VRRP.


Question 2

What sends the email messages for Workflow Approval notifications in NIOS?



Answer : A

Comprehensive and Detailed In-Depth

Workflow Approval notifications:

A: The Grid Master (GM) sends emails via its configured SMTP settings (Grid > Grid Properties > Email), as it manages Grid-wide tasks. Correct.

B: GMC is a standby, not active unless promoted---doesn't send emails. Incorrect.

C: Only GM sends, not both---GMC is passive. Incorrect.

D: SuperAdmin is a role, not a process---no sending capability. Incorrect.

Practical Example: In an INE lab, configure SMTP on the GM, test approval emails, and troubleshoot delivery from GM logs.


Question 3

Which stage of a NIOS upgrade is generally expected to take the shortest time?



Answer : A

Comprehensive and Detailed In-Depth

NIOS upgrade stages (Grid > Upgrade):

A (Upload): Uploading the .upgrade file (e.g., 50-200 MB) to the GM is quick---seconds to minutes, depending on network speed. Shortest. Correct.

B (Test): Validates file integrity/compatibility---fast but longer than upload (e.g., 1-2 minutes). Incorrect.

C (Distribute): Sending the file to all members takes longer, proportional to Grid size/network (e.g., 5-15 minutes). Incorrect.

D (Upgrade): Rebooting and applying the update per member is the longest (e.g., 10-30 minutes total). Incorrect.

Practical Example: In an INE lab, upload takes 30s, while distribution and upgrade take 10+ minutes, testing Grid deployment timing.


Question 4

When defining a custom DHCP option, what does the administrator need to specify? (Select all that apply.)



Answer : A, B, C

Comprehensive and Detailed In-Depth

Custom DHCP options (Data Management > DHCP > Option Spaces):

A (Option Name): Mandatory label (e.g., ''CustomOpt''). Correct.

B (Option Number): Mandatory code (1-254, e.g., 150). Correct.

C (Data Type): Mandatory format (e.g., string, integer). Correct.

D (Data Value): Set when applying the option to a scope/range, not during definition. Optional here. Incorrect.

Practical Example: In an INE lab, define ''VoiceVLAN'' (Number: 150, Type: integer), apply value ''10'' later, and troubleshoot client config.


Question 5

An administrator manages the zone example.com in an Infoblox Grid. The new domain marketing.example.com will have its own set of name servers that are not part of the same Infoblox Grid. Which type of zone should the administrator configure in NIOS for marketing.example.com?



Answer : B

Comprehensive and Detailed In-Depth

Configuring a subdomain like marketing.example.com in NIOS:

Scenario: example.com is authoritative on the Grid, but marketing.example.com uses external name servers (not Grid-managed).

B (Delegated Zone): A delegation zone adds NS records pointing to external servers (e.g., ns1.marketing.com), handing off resolution. Correct.

A: Authoritative means the Grid hosts the zone's records---not true here. Incorrect.

C: Subzone isn't a NIOS term---implies authoritative control, not delegation. Incorrect.

D: External zone isn't a configuration option---confuses forward zones. Incorrect.

Practical Example: In an INE lab, you'd delegate marketing.example.com with NS records, test resolution, and troubleshoot DNS handoff.


Question 6

When defining a Custom Option, what attributes must an administrator provide?



Answer : A, B, C

Comprehensive and Detailed In-Depth

Defining a custom DHCP option in NIOS (Data Management > DHCP > Option Spaces):

Required Attributes:

A (Option Name): User-defined label (e.g., ''VoIPConfig''). Mandatory for identification. Correct.

B (Code): Option number (1-254), matching vendor spec (e.g., 66 for TFTP). Mandatory. Correct.

C (Type): Data type (e.g., string, IP), defining format. Mandatory. Correct.

D (Allowed Value(s)): Optional---constrains values (e.g., ''server1''), but not required for definition. Incorrect here.

Practical Example: In an INE lab, you'd define Option 66 (Name: ''TFTP,'' Code: 66, Type: string), apply it, and troubleshoot client uptake.


Question 7

If the VRID of a HA pair is configured as 25. Which MAC address is most likely used for the virtual IP address?



Answer : B

Comprehensive and Detailed In-Depth

VRRP defines the virtual MAC for the VIP:

Format: 00:00:5E:00:01:XX, where XX is the VRID (1-255) in hex.

VRID 25: Decimal 25 = Hex 19. Thus, MAC is 00:00:5E:00:01:19.

Options:

A: 25 is decimal, not hex---incorrect conversion. Incorrect.

B: Correctly uses hex 19 for VRID 25. Correct.

C: Random, non-VRRP format. Incorrect.

D: Multicast format, not VRRP. Incorrect.

Practical Example: In an INE lab, you'd configure VRID 25, capture VRRP packets, and verify 00:00:5E:00:01:19, troubleshooting HA.


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Total 80 questions