H31-311 Online Practice Questions and Answers

Which of the following is the frame structure of STM-16?

A. 9*270*1

B. 9*270*4

C. 9*270*16

D. 9*270*64

Outband networking requires higher costs than inband networking, but provides more reliable management channels.

A. TRUE

B. FALSE

The device IP addresses of the gateway NE and non-gateway NEs must be set in the same network segment.

A. TRUE

B. FALSE

If a network port that supports auto-negotiation is connected to a network port that does not support auto-negotiation, the half-duplex and full-duplex modes may be interconnected.

A. TRUE

B. FALSE

Which of the following is not the northbound interface provided by the U2000?

A. XML

B. SNMP

C. CORBA

D. Qx

When the SXCS board is configured for an OSN 3500, which of the following is the access capacity of the subrack in full configuration?

A. 35G

B. 58.75G

C. 80G

D. 155G

In a WDM system, using a dielectric thin film filter (TFF) is ideal when fewer than ( ) wavelengths are used.

A. 4

B. 8

C. 16

D. 20

When LMSP is configured, there are two switching modes: single-ended switching and dual-ended switching. The protection protocol does not need to be enabled for single-ended switching.

A. TRUE

B. FALSE

The STAT indicator of an SDH board is blinking red, on for 100 ms and off for 100 ms. Which of the following is the meaning of the indicator status?

A. Hardware mismatch

B. Hardware fault

C. Normal operating

D. No power supply input

Both PDH and SDH have globally unified standards.

A. TRUE

B. FALSE