An administrator has both Avaya and Cisco VoIP phones that require the same DHCP option. What can the administrator do with these two different models of phones?
Answer(s): C
Comprehensive and Detailed In-DepthNIOS supports advanced DHCP configuration, including Option Filters, which match client requests based on DHCP options (e.g., Option 60 for Vendor Class Identifier). If Avaya and Cisco VoIP phones require the same DHCP option (e.g., Option 66 for TFTP server), the administrator can use separateOption Filters to distinguish the devices by their unique identifiers (like Vendor Class IDs: "Avaya" vs. "Cisco") and assign them IPs from the same range with the shared option. This allows both device types to coexist on the same subnet and range, eliminating the need for segregation (Option B) or vendor intervention (Option D). Option A is overly restrictive and incorrect. This is a practical DHCP troubleshooting scenario in the INE course.
Infoblox NIOS Administrator Guide DHCP Option Filters; INE Course Content: NIOS DDI DHCP Troubleshooting.
Which syslogs can be used to view boot-up messages from the last reboot of an Infoblox appliance? Choose 3 answers
Answer(s): A,B,C
Comprehensive and Detailed In-DepthBoot-up messages from an Infoblox appliance are logged in the syslog, 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.
Infoblox NIOS Administrator Guide Logging; INE Course Content: NIOS DDI Grid Troubleshooting.
How does the passive member of a High Availability (HA) pair receive its database updates?
Comprehensive and Detailed In-DepthIn an HA pair, the passive node stays synchronized with the active node to ensure seamless failover. This synchronization uses bloxSync, a proprietary Infoblox protocol that securely transfers database updates (e.g., DNS records, DHCP leases) between the HA pair members over an SSL-encrypted connection. The active node, being the operational member, directly provides these updates to the passive node. The Grid Master handles Grid-wide sync, but within an HA pair, the active node is the source. Options A and B misrepresent the mechanism (it's not a traditional VPN), and Option D incorrectly attributes the sync to the Grid Master. This is a critical HA troubleshooting topic in the INE course.
Infoblox NIOS Documentation HA Pair Configuration; INE Course Content: NIOS DDI Grid Troubleshooting.
An Infoblox Grid is using remote authentication for a group named Infoblox-Admins. Where are the permissions for the accounts in Infoblox-Admins defined?
Comprehensive and Detailed In-DepthWhen NIOS uses remote authentication (e.g., RADIUS, LDAP, or Active Directory), user authentication is handled by the external server, but permissions are defined within the NIOS Grid. For a group like "Infoblox-Admins," the external server verifies user credentials and group membership, but the Grid Manager assigns permissions (e.g., read/write access to DNS zones) to the group itself. This centralizes access control within NIOS, ensuring consistency across the Grid. Options A and B are incorrect because the external server manages authentication, not NIOS-specific permissions. Option D is wrong as permissions are group-based, not individually assigned on the Grid. The INE course covers Grid administration, including authentication setup.
Infoblox NIOS Administrator Guide Authentication; INE Course Objective: NIOS DDI Grid Deployment.
What protocol and port does DHCP Failover use to keep lease information synchronized between two peers?
Comprehensive and Detailed In-DepthInfoblox NIOS implements DHCP Failover based on the IETF DHCP Failover protocol (draft standard), using TCP port 647 by default for lease synchronization between peers. This port facilitates the exchange of lease data to ensure both the primary and secondary servers maintain consistent states (e.g., NORMAL, COMMUNICATIONS-INTERRUPTED). TCP is used for reliability, as lease sync requires guaranteed delivery. The port can be changed by the administrator if needed (e.g., for firewall rules), making "user configured" accurate. Options A and B (port 1194) are incorrect--1194 is commonly associated with OpenVPN, not DHCP Failover. Option D is wrong because it's TCP, not UDP. This is a key DHCP troubleshooting topic in the INE course.
Infoblox NIOS Administrator Guide DHCP Failover; INE Course Content: NIOS DDI DHCP Troubleshooting.
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