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Which of the following alarms is not a switching condition for a two- fiber bidirectional multiplex section protection ring?
Which of the following alarms is not a switching condition for a two- fiber bidirectional multiplex section protection ring?A . R_LOS B. MS_AIS C. TU_AIS D. B2_EXCView AnswerAnswer: C
The SDH equipment can judge the quality of the clock signal according to the S 1 byte. The larger the value of S 1 is, the higher the quality of the corresponding clock is.
The SDH equipment can judge the quality of the clock signal according to the S 1 byte. The larger the value of S 1 is, the higher the quality of the corresponding clock is.A . True B. FalseView AnswerAnswer: B
Which of the following descriptions of MPLS is incorrect? (Multiple choice)
Which of the following descriptions of MPLS is incorrect? (Multiple choice)A . MPLS: Multi-protocol Label Switching, a non-standardized routing and switching technology platform B. P/PE: P (Provider) is the internal node of the MPLS network, and PE (Provider Edge) is the edge of the MPLS network c. The operation of...
OSN 3500 branch line business has strong up and down capabilities, with 16 branch line outlet slots, 504 2M, 32 E4, 117 E3/DS3, 132 STM-1e up and down subracks, providing STM-1/4/ 16/64 group rate.
OSN 3500 branch line business has strong up and down capabilities, with 16 branch line outlet slots, 504 2M, 32 E4, 117 E3/DS3, 132 STM-1e up and down subracks, providing STM-1/4/ 16/64 group rate.A . True B. FalseView AnswerAnswer: A
For the OSN6800 device, which of the following slots does not have an electrical layer crossover backplane bus?
For the OSN6800 device, which of the following slots does not have an electrical layer crossover backplane bus?A . Slot1 B. SIot9 C. SIot10 D. SIot17View AnswerAnswer: D.
FAS is the frame alignment overhead, the length is 6 bytes, and it is located in the 1st to 6th columns of the first row. The 1st to 3rd bytes are 3 OA1 bytes, and each OA1 is always "1111 0110", that is, 16 F6 in hexadecimal; the 4th to 6th bytes are 3 OA2 bytes, and each OA2 is always "0010 1000", that is, 28 in hexadecimal.
FAS is the frame alignment overhead, the length is 6 bytes, and it is located in the 1st to 6th columns of the first row. The 1st to 3rd bytes are 3 OA1 bytes, and each OA1 is always "1111 0110", that is, 16 F6 in hexadecimal; the 4th to...
Which of the following is the monitoring overhead for monitoring and reporting OTUk_DEG and OTUk_EXC alarms?
Which of the following is the monitoring overhead for monitoring and reporting OTUk_DEG and OTUk_EXC alarms?A . SM B.PM C. TCMiView AnswerAnswer: A
The physical layer of LAN is often used for the interconnection of routers and switches. Although it is called a local area network, if a 10GBase-LR or -ER optical module is used, the transmission distance can reach 80 kilometers.
The physical layer of LAN is often used for the interconnection of routers and switches. Although it is called a local area network, if a 10GBase-LR or -ER optical module is used, the transmission distance can reach 80 kilometers.A . True B. FalseView AnswerAnswer: A
The number of network elements (including REG) in the two -fiber bidirectional multiplex section sharing protection ring can exceed 16.
The number of network elements (including REG) in the two -fiber bidirectional multiplex section sharing protection ring can exceed 16.A . True B. FalseView AnswerAnswer: A
Complex flow classification refers to classifying packets according to the ToS (Type of Service ) field of IP packets , user priority or EXP field of MPLS packets to identify traffic with different priority characteristics.
Complex flow classification refers to classifying packets according to the ToS (Type of Service ) field of IP packets , user priority or EXP field of MPLS packets to identify traffic with different priority characteristics.A . True B. FalseView AnswerAnswer: B
