An administrator has a rack server that is 3.5 inches (8.9 cm) tall. Which of the following is the correct U size for this server?

The correct answer is B. Two. A rack unit (U) is a standard unit of measure for the height of rack-mounted equipment, with 1U being 1.75 inches (4.445 cm) tall.

Server hardware installation and management

Question

Options

AOne
BTwo
CThree
DFive

How the community answered

(20 responses)

B
85% (17)
C
5% (1)
D
10% (2)

Why each option

A rack unit (U) is a standard unit of measure for the height of rack-mounted equipment, with 1U being 1.75 inches (4.445 cm) tall.

AOne

1U corresponds to a height of 1.75 inches, not 3.5 inches.

BTwoCorrect

Since 1U equals 1.75 inches, a server that is 3.5 inches tall is equivalent to 2U (3.5 inches / 1.75 inches per U = 2U).

CThree

3U corresponds to a height of 5.25 inches (3 * 1.75 inches), not 3.5 inches.

DFive

5U corresponds to a height of 8.75 inches (5 * 1.75 inches), not 3.5 inches.

Concept tested: Rack unit sizing and conversion

Source: https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/c/hw/C220/install/C220/c220_racks.html

Topics

#rack unit#server form factors#server hardware

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