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JN0-102 · Question #365

What are three interface prefixes for a 40-gigabit interface? (Choose three.)

The correct answer is A. et C. fte E. xle. Three common interface prefixes for a 40-gigabit interface on Juniper devices are et, fte, and xle, each identifying a type of 40-Gigabit Ethernet interface.

Junos OS Fundamentals

Question

What are three interface prefixes for a 40-gigabit interface? (Choose three.)

Options

  • Aet
  • Bes
  • Cfte
  • Dxe
  • Exle

How the community answered

(28 responses)
  • A
    93% (26)
  • B
    4% (1)
  • D
    4% (1)

Why each option

Three common interface prefixes for a 40-gigabit interface on Juniper devices are `et`, `fte`, and `xle`, each identifying a type of 40-Gigabit Ethernet interface.

AetCorrect

`et` is the prefix for Ethernet interfaces that support 10-Gigabit speeds and higher, including 40-Gigabit, 100-Gigabit, and beyond.

Bes

`es` is typically used for Encapsulated Synchronous interfaces, which are not 40-gigabit Ethernet.

CfteCorrect

`fte` is a specific prefix used for Forty Gigabit Ethernet interfaces on some Juniper platforms.

Dxe

`xe` is the prefix commonly used for Ten Gigabit Ethernet interfaces, not 40-gigabit interfaces.

ExleCorrect

`xle` is another specific prefix designated for Forty Gigabit Low Latency Ethernet interfaces, indicating a 40-gigabit connection with optimized latency.

Concept tested: Junos interface type prefixes (40G)

Source: https://www.juniper.net/documentation/us/en/software/junos/interfaces-app-services/topics/topic-map/interfaces-overview.html

Topics

#interface types#interface naming#Junos interfaces

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