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200-155 · Question #187

Which three pools are building blocks that you use to uniquely identify hardware resources? (Choose three)

The correct answer is A. UUID pool C. WWNN and WWPN pool D. MAC address pool. To uniquely identify hardware resources in a computing environment, particularly in converged infrastructure, specific pools of identifiers are used. These pools include UUIDs for system identification, WWNN/WWPNs for Fibre Channel devices, and MAC addresses for network interface

Unified Computing System

Question

Which three pools are building blocks that you use to uniquely identify hardware resources? (Choose three)

Options

  • AUUID pool
  • BDHCP pool
  • CWWNN and WWPN pool
  • DMAC address pool
  • ERBAC pool
  • Fdisk pool

How the community answered

(61 responses)
  • A
    95% (58)
  • B
    3% (2)
  • F
    2% (1)

Why each option

To uniquely identify hardware resources in a computing environment, particularly in converged infrastructure, specific pools of identifiers are used. These pools include UUIDs for system identification, WWNN/WWPNs for Fibre Channel devices, and MAC addresses for network interfaces.

AUUID poolCorrect

A UUID (Universally Unique Identifier) pool provides unique identifiers for hardware resources such as server blades, virtual machines, or chassis, ensuring each hardware component has a distinct identity within the system for management and configuration.

BDHCP pool

A DHCP (Dynamic Host Configuration Protocol) pool assigns IP addresses, which are logical network identifiers for communication sessions, not unique identifiers for physical hardware resources themselves.

CWWNN and WWPN poolCorrect

A WWNN (World Wide Node Name) and WWPN (World Wide Port Name) pool provides unique identifiers for Fibre Channel nodes and ports, respectively, which are essential for zoning, addressing, and security within a Fibre Channel Storage Area Network (SAN).

DMAC address poolCorrect

A MAC address pool provides unique Media Access Control (MAC) addresses, which are physical hardware addresses assigned to network interfaces (e.g., NICs) and are fundamental for identifying devices on an Ethernet local area network.

ERBAC pool

An RBAC (Role-Based Access Control) pool defines roles and permissions for user access to resources, rather than providing unique identifiers for hardware components.

Fdisk pool

A disk pool is a logical grouping of physical storage disks to form a storage resource, not a pool of unique identifiers for individual hardware components.

Concept tested: Hardware resource identifier pools

Source: https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/sw/gui/config/guide/4-2/b_UCSM_GUI_Configuration_Guide_4_2/b_UCSM_GUI_Configuration_Guide_4_2_chapter_0100.html

Topics

#UCS resource pools#UUID pool#MAC address pool#WWN pool

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