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Huawei HCIA-Transmission(Huawei Certified ICT Associate-Transmission) Sample Questions:

1. The backplane has two -48 V power supply cables, and each board obtains two -48 V power supplies from the backplane. After the power supplies are combined by diodes, various voltages required by each component are obtained through the DC/DC power module and linear conversion.

A) FALSE
B) TRUE

2. According to the formula of "ODUk rate = 239/(239-k) x STM-N frame rate", the ODU4 rate is equal to 239/235 x STM-N frame rate.

A) FALSE
B) TRUE

3. Which of the following alarms does not trigger the AU-AIS alarm?

A) R-LOS
B) B2-EXC
C) AU-LOP
D) MS-AIS

4. The fiber core refractive index n1 must be Q the cladding layer refractive index n2, which is a necessary condition for transmitting optical signals in optical fibers.

A) lower than
B) higher than
C) equal to

5. When a VLAN-based service type is configured, which of the following functions must be enabled on the port?

A) Broadcast packet suppression
B) Flow control
C) Auto-negotiation mode
D) Entry detection

Solutions: