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In NIOS, what can permissions be assigned to? Choose 2 answers
Comprehensive and Detailed In-Depth
Permissions in NIOS (Administration > Administrators):
A (Admin Accounts): Individual accounts can have specific permissions (e.g., read-only DNS). Correct.
B (Groups): Admin groups get collective permissions (e.g., ''DNS_Admins'' write access). Correct.
C: ''Roles'' isn't a distinct NIOS entity---permissions tie to groups/accounts. Incorrect.
D: Superusers have unrestricted access, not assigned permissions---they override limits. Incorrect.
Practical Example: In an INE lab, assign DNS write to a group and read-only to an account, test access, and troubleshoot restrictions.
A firewall change has interrupted the DHCP Failover communication between two DHCP Failover peers. Both peers are still online and can communicate to clients, but the state is now COMMUNICATIONS INTERRUPTED. What should the administrator do?
Comprehensive and Detailed In-Depth
DHCP Failover peers sync leases via TCP 647. A firewall blocking this shifts the state to COMMUNICATIONS-INTERRUPTED:
State Impact:
Both peers serve existing clients and limited new leases (via MCLT).
No sync occurs, risking lease conflicts if prolonged.
Best Action: Manually set one peer to PARTNER-DOWN (Grid > DHCP > Failover > Edit), giving the other full pool control to avoid conflicts.
Why Secondary: Conventionally, the secondary is set to PARTNER-DOWN, letting the primary take over as the authoritative peer (per Infoblox best practices).
Options:
A: Doing nothing risks conflicts if new leases exceed MCLT capacity. Incorrect long-term.
B: Primary to PARTNER-DOWN cedes control to secondary, less standard. Incorrect.
C: Secondary to PARTNER-DOWN empowers primary, aligning with failover design. Correct.
D: Changing split value doesn't address sync loss. Incorrect.
Practical Example: In an INE lab, you'd simulate this, set secondary to PARTNER-DOWN, and troubleshoot lease consistency post-firewall fix.
The Infoblox appliance has an LCD panel. To join a node to a Grid, the administrator should use the LCD panel at the front of the Infoblox appliance.
Comprehensive and Detailed In-Depth
Infoblox physical appliances (e.g., IB-1400 series) feature an LCD panel for basic configuration, but its role in Grid joining is limited:
LCD Capabilities: The panel allows setting IP addresses, hostnames, and basic network parameters (e.g., via arrow keys and menu options). It's useful for initial setup or recovery.
Grid Joining Process: Joining a node to a Grid requires:
Configuring the node's IP and Grid Master IP.
Authenticating with Grid credentials (e.g., shared secret).
Initiating the join via Grid Manager (Grid > Members > Add) or CLI (set membership).
Why False: The LCD can set preliminary network settings, but full Grid joining---specifying the Grid Master, VPN details, and completing sync---requires CLI or GUI access. The panel lacks the interface for these steps.
Practical Example: In an INE lab, you'd use the LCD to set an IP on a new node, then SSH to run set membership and join the Grid, troubleshooting connectivity via logs.
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?
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.
What sends the email messages for Workflow Approval notifications in NIOS?
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.
