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خذ اختبارات أخرى عبر الإنترنت
السؤال #1
The device IP addresses of the gateway NE and non-gateway NEs must be set in the same network segment.
A. TRUE
B. FALSEcorrect
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اجابة صحيحة: B
السؤال #2
A two-fiber ring topology consists of three network elements, which are arranged in counterclockwise order as A, B, and C. The service between A and C occupies the 48th VC-12 time slot in the first VC-4 on the short-path line. Then the service between B and C can also occupy the 48th VC-12 time slot in the first VC-4 on the short-path line. Which of the following is the protection subnet type of the ring network?
A. One-way road protection ring
B. Subnet connection protection ring
C. Bidirectional multiplex segment protection ringcorrect
D. All of the above are possible
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اجابة صحيحة: C
السؤال #3
The LDG supports electrical layer scheduling at the ODU1 level.
A. True
B. Falsecorrect
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اجابة صحيحة: B
السؤال #4
Which of the following databases is used by U2000 on PC/WIN2003?
A. Sybase
B. Microsoft SQL Server 2000correct
C. FoxPro
D. DB2
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اجابة صحيحة: B
السؤال #5
FAS is the frame alignment overhead, with a length of 6 bytes, located in the 1st row and the 1st to 6th columns. The 1st to 3rd bytes are 3 OA1 bytes, each OA1 is always "1111 0110", which is F6 in hexadecimal. The 4th to 6th bytes are 3 OA2 bytes, each OA2 is always "0010 1000", which is 28 in hexadecimal.
A. Truecorrect
B. False
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اجابة صحيحة: A
السؤال #6
The number of network elements (including REG) in the two -fiber bidirectional multiplex section sharing protection ring can exceed 16.
A. Truecorrect
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #7
In Ethernet, the frame length has a lower limit, which is mainly due to the following considerations?
A. Carrier Sense
B. Multi-point access
C. Conflict Detectioncorrect
D. Improve network bandwidth utilization
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اجابة صحيحة: C
السؤال #8
When a fiber cut test is performed on a normal MSP ring, which of the following alarms is reported? (Multiple Choice)
A. TU - AIS
B. R - LOS
C. APSJNDI
D. BD STATUS
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اجابة صحيحة: BC
السؤال #9
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
C. 80G
D. 155Gcorrect
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اجابة صحيحة: D
السؤال #10
The maximum transmission distance of Ethernet depends on factors such as line quality and signal attenuation .
A. Truecorrect
B. False
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اجابة صحيحة: A
السؤال #11
In MSP networking, when the optical fiber is connected between sites, the east light plate of the site is connected to the west light plate of the downstream site, and these stations are connected in turn to form a ring. In this case, the direction from the toko plate of the site to the wine light plate of the downstream station is the direction of the main ring, and the direction of forming the ring is the direction of service.
A. ATrue
B. BError
عرض الإجابة
اجابة صحيحة: B
السؤال #12
When a working PQ1 board is faulty, the device performs TFS protection switching. Which of the following statements about the switching process are correct? (Multiple Choice)
A. The protection PQ1 board receives and processes the services that are transferred from the D75S board to the protection bus to complete the protection switching
B. If the protection PQ1 board is normal, the cross-connect board sends a switching message to the D75S corresponding to the faulty PQ1 board through the switching control bus
C. The cross-connect board detects that the PQ1 board is faulty through the board status bus
D. The D75S board responds to the switching message by transferring services to the shared protection bus and stopping sending services to the faulty PQ1 board
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اجابة صحيحة: ABCD
السؤال #13
Which of the following is the monitoring overhead used to monitor and report OTUk_DEG and OTUk_EXC alarms.
A. SMcorrect
B. PM
C. TCMi
عرض الإجابة
اجابة صحيحة: A
السؤال #14
The U2000 can be flexibly interconnected with different third-party NMSs through northbound interfaces (NBIs), and provides information about physical inventory and alarms to the upper-layer NMSs.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #15
The U2000 client supports installation on Windows, Solaris, and SUSE Linux operating systems.
A. True
B. Falsecorrect
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اجابة صحيحة: B
السؤال #16
When configuring LMSP, there are two switching modes: single-ended switching and dual-ended switching. Single-ended switching does not require the protection protocol to be enabled.
A. Truecorrect
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #17
Which of the following is the functional unit that provides the interfaces related to the orderwire phone and serial data for the system?
A. Tributary unit
B. Auxiliary unit
C. Line unit
D. Cross-connect unit
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اجابة صحيحة: B
السؤال #18
Which of the descriptions about the FIU board is correct?
A. The FIU board processes monitoring information
B. FIU can complete the access and solution of OSC channel
C. In OptiX OSN 880 0 equipment, when there is no signal input, the FIU board will report an alarm
D. Whether it is an OLA station or an OADM station, a station only needs one FI
عرض الإجابة
اجابة صحيحة: B
السؤال #19
When performing fiber cut - off test on an ordinary MSP ring, which of the following alarms will be reported? (Multiple choice).
A. YOU - AIS
B. R - LOS
C. APSJNDl
D. BD
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اجابة صحيحة: BC
السؤال #20
The comb filter is an active optical device, its main function is to couple or separate odd and even waves in the same band.
A. True
B. Falsecorrect
عرض الإجابة
اجابة صحيحة: B
السؤال #21
When the LCAS function is used, which of the following overhead bytes are used to transmit control information? (Multiple Choice)
A. M1
B. H4correct
C. K2
D. K4correct
عرض الإجابة
اجابة صحيحة: BD
السؤال #22
OSN 3500 has strong branch service up and down capabilities, with 16 branch outgoing line slots, 504 2M, 32 E4, 117 E3/DS3, 132 STW-1e up and down on a single subrack, providing STM-1/4/16/64 group rate.
A. Truecorrect
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #23
The levels of forced switching, fiber cut switching, manual switching, and practice switching are arranged from high to low.
A. Truecorrect
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #24
RAMAN amplifier utilizes which of the nonlinear effects?
A. Self-Phase Modulation
B. Dispersion
C. Raman scatteringcorrect
D. Four-wave mixing
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اجابة صحيحة: C
السؤال #25
The optical monitoring channel is set up for the monitoring of the WDM optical transmission system. ITU-T recommends that the wavelength of 1510nm is preferred, and the capacity is 2MHz/s .
A. True
B. Falsecorrect
عرض الإجابة
اجابة صحيحة: B
السؤال #26
The OSN 7500 supports a maximum of 2M service boards. Which of the following is correct.
A. 1correct
B. 2
C. 3
D. 4correct
عرض الإجابة
اجابة صحيحة: AD
السؤال #27
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. TRUE
B. FALSEcorrect
عرض الإجابة
اجابة صحيحة: B
السؤال #28
Linear MSP (LMSP) has two modes: 1+1 and 1:1. Additional services can only be configured for the protection channel in the 1:1 mode of LMSP.
A. Truecorrect
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #29
The multi-frame loaded 2M signal is the information of which time period?
A. 500uscorrect
B. 125us
C. 500ms
D. 125ms
عرض الإجابة
اجابة صحيحة: A
السؤال #30
LDG supports electrical layer scheduling at the ODU1 level.
A. True
B. Falsecorrect
عرض الإجابة
اجابة صحيحة: B

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