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خذ اختبارات أخرى عبر الإنترنت
السؤال #1
In the 2.5G MSP ring consisting of four MSTP sites, when a protection switching occurs, which of the following statements about the alarm reporting is correct?
A. The PS alarm is reported on the tributary board
B. The APS-INDI alarm is reported on the XCS board
C. The APS-INDI alarm is reported on the system control board
D. The APS-INDI alarm is reported on the line board
عرض الإجابة
اجابة صحيحة: B
السؤال #2
Manual configuration will clear data on the NE side.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #3
The SNCP switching speed can be improved if you classify the SNCP services that have the same source, sink, or route into groups.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #4
Which of the following statements about challenges faced by OTN devices are correct? (Choose all that apply.)
A. nsufficient pipe elasticity
B. ow resource utilization
C. nflexible bandwidth adjustment
D. ot-low-enough latency
عرض الإجابة
اجابة صحيحة: ABC
السؤال #5
Which of the following ITLI-T recommendations define the OTN frame structure?
A. G
B. G
C. G
D. G
عرض الإجابة
اجابة صحيحة: D
السؤال #6
Linear MSP (LMSP) has two modes: 1+1 and 1:1. Additional services can only be configured for the protection channel in 1:1 mode of the LMSP.
A. True
B. Error
عرض الإجابة
اجابة صحيحة: A
السؤال #7
Which of the following overhead bytes needs to be processed at an electrical regeneration site?
A. ll of the above
B. M
C. M
D. CM
عرض الإجابة
اجابة صحيحة: A
السؤال #8
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. 155G
عرض الإجابة
اجابة صحيحة: D
السؤال #9
Which of the following operating systems support the installation of the U2000 client?
A. ll of the above
B. USE Linux
C. olaris
D. indows
عرض الإجابة
اجابة صحيحة: A
السؤال #10
The rates of the SF64 and SL64 boards are both STM-64. Therefore, the two boards can be interconnected.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #11
The frame structure of 0DU4 is four times that of ODU1.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #12
The frame structure of 0DU4 is four times that of ODU1.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #13
Which of the following statements regarding the sequence of signal flows between the SDH interface and the cross-connecting unit is correct?
A. SPI <> RST <> MST <> MSP<> MSA <> HPT
B. SPI <> RST <> MSA<> MSP<> MST <> HPT
C. SPI <> MST<> RST <> MSA <> MSP >HPT
D. SPT<> MS <> MSA<> RST > MSP<> HPT
عرض الإجابة
اجابة صحيحة: A
السؤال #14
Which of the following are the service board types of MSTP devices? (Multiple Choice)
A. Interface board
B. Service processing board
C. Service processing board with interfaces
D. Auxiliary board
عرض الإجابة
اجابة صحيحة: ABC
السؤال #15
Compared with a dense wavelength division multiplexing (DWDM) system, a coarse wavelength division multiplexing (CWDM) system provides a certain number of wavelengths and a transmission distance within ( ) km, which greatly reduces system cost and has strong flexibility.
A. 50
B. 100
C. 200
D. 20
عرض الإجابة
اجابة صحيحة: B
السؤال #16
Optical fiber loss includes the bending loss, absorption loss, and scattering loss.
A. ALSE
B. RUE
عرض الإجابة
اجابة صحيحة: A
السؤال #17
NE A and NE B are adjacent NEs. If B3 and lower-order bit errors occur in the A->B direction and B1, B2, B3, and lower-order bit errors occur in the B->A direction, which of the following performance events are reported by NE A? (Multiple Choice)
A. RSBBE
B. RSFEBBE
C. MSBBE
D. MSFEBBE
E. HPBBE
F. HPFEBBE
عرض الإجابة
اجابة صحيحة: ACEF
السؤال #18
When the LCAS function is used/ which of the following overhead bytes are used to transmit control information? (Multiple Choice)
A. M1
B. H4
C. K2
D. K4
عرض الإجابة
اجابة صحيحة: BD
السؤال #19
SES: There are 5% or more of the False blocks or at least one defect (OCI/AIS/LCK/IAE/LTC/TIM/PLM) in one second.
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #20
The dual fiber ring topology consisting of three network elements is arranged in counterclockwise order as the service between A, B and C A and C occupies the first VC-48 on the short path VC-12 time slots, B and C of the same service also occupy the 48th of the first VC-4 on the short path VC-12 time slots
A. Unidirectional path protection ring
B. SNCP ring
C. Bidirectional MSP ring
D. All of the above
عرض الإجابة
اجابة صحيحة: C
السؤال #21
NE A and NE B are adjacent NEs. If B3 and lower-order bit errors occur in the A->B direction and B1, B2, B3, and lower-order bit errors occur in the B->A direction, which of the following performance events are reported by NE A? (Multiple Choice)
A. RSBBE
B. RSFEBBE
C. MSBBE
D. MSFEBBE
E. HPBBE
F. HPFEBBE
عرض الإجابة
اجابة صحيحة: ACEF
السؤال #22
When configuring the SXCS single board for the OSN3500, which of the following is the access package of the fully configured substand?
A. 35G
B. 58
C. 80G
D. 156 to pick up the answer
عرض الإجابة
اجابة صحيحة: D
السؤال #23
A 1510 nm optical supervisory channel can be effectively amplified after it passes an EDFA.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #24
The frame structure of 0DU4 is four times that of ODU1.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #25
Manual configuration will clear data on the NE side.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #26
The frame structure of 0DU4 is four times that of ODU1.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #27
Which of the following technologies is the main difference between an open DWDM system and an integrated DWDM system?
A. ptical supervisory technology
B. ptical amplification technology
C. avelength conversion technology
D. ultiplexing/Demultiplexing technology
عرض الإجابة
اجابة صحيحة: C
السؤال #28
The rates of the SF64 and SL64 boards are both STM-64. Therefore, the two boards can be interconnected.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #29
Manual configuration will clear the data on the NE side
A. True
B. Error
عرض الإجابة
اجابة صحيحة: A
السؤال #30
The frame structure of 0DU4 is four times that of ODU1.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #31
Which of the following ITLI-T recommendations define the OTN frame structure?
A. G
B. G
C. G
D. G
عرض الإجابة
اجابة صحيحة: D
السؤال #32
In WDM systems, it is ideal to use a dielectric thin problem filter (TFF) when using less than () wavelengths.
A. 4
B. 8
C. 16
D. 20
عرض الإجابة
اجابة صحيحة: C
السؤال #33
The working mode of the port determines the flow control mode of the port.When the operating mode is 100Mbit/s full duplex, one of the following flow control modes can be used?
A. Auto-negotiation flow control mode
B. Non-autonegotiation flow control mode
C. Both
D. None of the above
عرض الإجابة
اجابة صحيحة: B
السؤال #34
According to the formula "ODUk rate = 239/(239k) x STM-N frame rate", ODU4 The rate is equal tothe 239/235xSTM-N Pa rate.
A. rue
B. alse
عرض الإجابة
اجابة صحيحة: B
السؤال #35
K1 and K2 bytes can send APS switching signaling or indicate that the multiplexed segment signal is invalid.
A. True
B. Error
عرض الإجابة
اجابة صحيحة: A
السؤال #36
In WDM systems, it is ideal to use a dielectric thin problem filter (TFF) when using less than ()wavelengths.
A.
B.
C. 6
D. 0
عرض الإجابة
اجابة صحيحة: C
السؤال #37
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. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #38
EPL services exclusively use ports and band widths, and different users may need to share resources.Which of the following methods can be used to isolate user data?
A. ll of the above
B. inQ technology
C. PLS label
D. LAN ID
عرض الإجابة
اجابة صحيحة: A
السؤال #39
Which of the following is the configuration mode for the new NE?( Multiple choices).
A. AManual configuration
B. BUpload
C. CDownload
D. DCopy NE data
عرض الإجابة
اجابة صحيحة: ABD
السؤال #40
When a bridge uses the IVL learning mode, the entry in the MAC address table is created according to the source MAC address and source port of the data frame. This entry is valid for all VLANs.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #41
In the 2.5G MSP ring consisting of four MSTP sites, when a protection switching occurs, which of the following statements about the alarm reporting is correct?
A. The PS alarm is reported on the tributary board
B. The APS-INDI alarm is reported on the XCS board
C. The APS-INDI alarm is reported on the system control board
D. The APS-INDI alarm is reported on the line board
عرض الإجابة
اجابة صحيحة: B
السؤال #42
Manual configuration will clear data on the NE side.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #43
NE A and NE B are adjacent NEs. If B3 and lower-order bit errors occur in the A->B direction and B1, B2, B3, and lower-order bit errors occur in the B->A direction, which of the following performance events are reported by NE A? (Multiple Choice)
A. RSBBE
B. RSFEBBE
C. MSBBE
D. MSFEBBE
E. HPBBE
F. HPFEBBE
عرض الإجابة
اجابة صحيحة: ACEF
السؤال #44
NE A and NE B are adjacent NEs. If B3 and lower-order bit errors occur in the A->B direction and B1, B2, B3, and lower-order bit errors occur in the B->A direction, which of the following performance events are reported by NE A? (Multiple Choice)
A. RSBBE
B. RSFEBBE
C. MSBBE
D. MSFEBBE
E. HPBBE
F. HPFEBBE
عرض الإجابة
اجابة صحيحة: ACEF
السؤال #45
The rate of STM-1 is () bit/s.
A. *270*4*8000
B. *270*1*8000*8
C. *270*1*8000
D. *270*1*8000*16
عرض الإجابة
اجابة صحيحة: B
السؤال #46
When configuring LMSP, there are two switching modes: single-ended switching and double-ended switching. Single-ended switching does not require the protection protocol to be enabled.
A. True
B. Error
عرض الإجابة
اجابة صحيحة: A
السؤال #47
Which of the following ITLI-T recommendations define the OTN frame structure?
A. G
B. G
C. G
D. G
عرض الإجابة
اجابة صحيحة: D
السؤال #48
Only one TCM can be used at a site.
A. ALSE
B. RUE
عرض الإجابة
اجابة صحيحة: A
السؤال #49
The rates of the SF64 and SL64 boards are both STM-64. Therefore, the two boards can be interconnected.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #50
The standard Ethernet frame length should not be less than 64 bytes Which of the following factors contribute to this limitation? (Multiple choice).
A. Minimum transmission distance
B. Maximum transmission distance
C. How conflict detection works
D. MAC address
عرض الإجابة
اجابة صحيحة: BC
السؤال #51
K1 and K2 bytes can send APS switching signaling or indicate that the multiplexed segment signal is invalid.
A. True
B. Error
عرض الإجابة
اجابة صحيحة: A
السؤال #52
Which of the following factors determines that the optical signal-to-noise ratio (OSNR) at the receive end decreases to a certain extent After signals are transmitted for a certain distance in a WDM system, the optical signal-to-noise ratio (OSNR) at the receive end decreases to a certain extent.Which of the following is the main cause?
A. ew types of optical fibers are not used
B. DFAs are used
C. iber attenuation is excessively high
D. ultiplexers and demultiplexers are used
عرض الإجابة
اجابة صحيحة: B
السؤال #53
Which of the following working windows is indicated by "2" in the optical module parameter "L-64.2"?
A. 310 nm
B. 550 nm
C. 80 nm
D. 510 nm
عرض الإجابة
اجابة صحيحة: B
السؤال #54
The rate of SF64 and SL64 boards is STM54. Therefore, the two plates can be interconnected.
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #55
Linear MSP (LMSP) has two modes; 1+1 and 1:1. Extra services can be configured for the protection channel only in the 1:1 mode of LMSP.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #56
The rates of the SF64 and SL64 boards are both STM-64. Therefore, the two boards can be interconnected.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #57
Which of the following descriptions of the electrical layer multiplexing phase mapping steps of ODU0 is wrong?
A. fter mapping and multiplexing, two DDU0 signals can be multiplexed into one OTU1[V] signal
B. fter mapping and multiplexing, 8 ODU0 signals can be multiplexed into 1 0TU2V VI signal
C. fter mapping and multiplexing, 34 0DU0 signals can be multiplexed into 1 OTU3[VM signal
D. 0 0DU0 signals are mapped and multiplexed, and finally multiplexed into 1 OTU4 signal
عرض الإجابة
اجابة صحيحة: C
السؤال #58
Which of the following is the functional unit that provides a high-speed signal interface and processes the corresponding signal?
A. Cross-connecting unit
B. Auxiliary units
C. Tributary units
D. Line units
عرض الإجابة
اجابة صحيحة: D
السؤال #59
NE A and NE B are adjacent NEs. If B3 and lower-order bit errors occur in the A->B direction and B1, B2, B3, and lower-order bit errors occur in the B->A direction, which of the following performance events are reported by NE A? (Multiple Choice)
A. RSBBE
B. RSFEBBE
C. MSBBE
D. MSFEBBE
E. HPBBE
F. HPFEBBE
عرض الإجابة
اجابة صحيحة: ACEF
السؤال #60
In the frame structure of SDH signals, there are abundant overhead bytes used for operation, administration, and maintenance (OAM). The overhead bytes account for ( ) of all bits in the entire frame and greatly enhance the monitoring functions of the network.
A. 1/10
B. 1/20
C. 1/30
D. 1/40
عرض الإجابة
اجابة صحيحة: B
السؤال #61
NE A and NE B are adjacent NEs. If B3 and lower-order bit errors occur in the A->B direction and B1, B2, B3, and lower-order bit errors occur in the B->A direction, which of the following performance events are reported by NE A? (Multiple Choice)
A. RSBBE
B. RSFEBBE
C. MSBBE
D. MSFEBBE
E. HPBBE
F. HPFEBBE
عرض الإجابة
اجابة صحيحة: ACEF
السؤال #62
Which of the following layers defines the protocols that control the network layer? The protocols of the layer work on logical links, that is end-to-end connections between two devices.
A. pplication layer
B. ransport layer
C. ata link layer
D. etwork layer
عرض الإجابة
اجابة صحيحة: B
السؤال #63
NE A and NE B are adjacent NEs. If B3 and lower-order bit errors occur in the A->B direction and B1, B2, B3, and lower-order bit errors occur in the B->A direction, which of the following performance events are reported by NE A? (Multiple Choice)
A. RSBBE
B. RSFEBBE
C. MSBBE
D. MSFEBBE
E. HPBBE
F. HPFEBBE
عرض الإجابة
اجابة صحيحة: ACEF
السؤال #64
NE A and NE B are adjacent NEs. If B3 and lower-order bit errors occur in the A->B direction and B1, B2, B3, and lower-order bit errors occur in the B->A direction, which of the following performance events are reported by NE A? (Multiple Choice)
A. RSBBE
B. RSFEBBE
C. MSBBE
D. MSFEBBE
E. HPBBE
F. HPFEBBE
عرض الإجابة
اجابة صحيحة: ACEF
السؤال #65
When a bridge uses the IVL learning mode, the entry in the MAC address table is created according to the source MAC address and source port of the data frame. This entry is valid for all VLANs.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #66
Which of the following are the service board types for MSTP devices? (Multiple choice).
A. Interface board
B. Service processing board
C. Service processing board with interface
D. Auxiliary board
عرض الإجابة
اجابة صحيحة: ABC
السؤال #67
The frame structure of 0DU4 is four times that of ODU1.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #68
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
عرض الإجابة
اجابة صحيحة: BC
السؤال #69
Which of the following statements regarding the sequence of signal flows between the SDH interface and the cross-connecting unit is correct?
A. SPI <> RST <> MST <> MSP<> MSA <> HPT
B. SPI <> RST <> MSA<> MSP<> MST <> HPT
C. SPI <> MST<> RST <> MSA <> MSP >HPT
D. SPT<> MS <> MSA<> RST > MSP<> HPT
عرض الإجابة
اجابة صحيحة: A
السؤال #70
Which of the following statements about the 1+1 protection of cross-connect boards are correct? (Multiple Choice)
A. The source service board sends services to the active and standby cross-connect boards
B. After service cross-connections are completed, the active and standby cross-connect boards send the data of the active cross-connect board to the sink service board
C. The sink service board can receive only the data from the active cross-connect board
D. The buses of the two cross-connect modules work independently and do not interfere with each other
E. The dual-bus system structure indicates that the service board performs dual feeding of data to the cross-connect side and selective receiving of the data on the cross-connect side
F. Two cross-connect boards have the same configuartion
عرض الإجابة
اجابة صحيحة: ADEF
السؤال #71
The rates of the SF64 and SL64 boards are both STM-64. Therefore, the two boards can be interconnected.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #72
NE A and NE B are adjacent NEs. If B3 and lower-order bit errors occur in the A->B direction and B1, B2, B3, and lower-order bit errors occur in the B->A direction, which of the following performance events are reported by NE A? (Multiple Choice)
A. RSBBE
B. RSFEBBE
C. MSBBE
D. MSFEBBE
E. HPBBE
F. HPFEBBE
عرض الإجابة
اجابة صحيحة: ACEF
السؤال #73
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
عرض الإجابة
اجابة صحيحة: A
السؤال #74
Which of the following is the functional unit that provides a high-speed signal interface and processes the corresponding signal?
A. Cross-connecting unit
B. Auxiliary units
C. Tributary units
D. Line units
عرض الإجابة
اجابة صحيحة: D
السؤال #75
K1 and K2 bytes can send APS switching signaling or indicate that the multiplexed segment signal is invalid.
A. True
B. Error
عرض الإجابة
اجابة صحيحة: A
السؤال #76
Which of the following ITLI-T recommendations define the OTN frame structure?
A. G
B. G
C. G
D. G
عرض الإجابة
اجابة صحيحة: D
السؤال #77
Which of the following statements about the OTM-n .m and OTMnr .m for OTN are incorrect?
A. represents the number of wavelengths carried by the maximum capacity
B. indicates the rate
C. represents OTM
D. TM-nr
عرض الإجابة
اجابة صحيحة: B
السؤال #78
The dual fiber ring topology consisting of three network elements is arranged in counterclockwise order as the service between A, B and C A and C occupies the first VC-48 on the short path VC-12 time slots, B and C of the same service also occupy the 48th of the first VC-4 on the short path VC-12 time slots
A. Unidirectional path protection ring
B. SNCP ring
C. Bidirectional MSP ring
D. All of the above
عرض الإجابة
اجابة صحيحة: C
السؤال #79
The frame structure of 0DU4 is four times that of ODU1.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #80
Which of the following ITLI-T recommendations define the OTN frame structure?
A. G
B. G
C. G
D. G
عرض الإجابة
اجابة صحيحة: D
السؤال #81
Manual configuration will clear data on the NE side.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #82
Manual configuration will clear data on the NE side.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #83
The rates of the SF64 and SL64 boards are both STM-64. Therefore, the two boards can be interconnected.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #84
Manual configuration will clear data on the NE side.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A

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