更多"SONET Code Violations (CVs) totals "的相关试题:
[单项选择]SDH Code Violations （CVs） totals in the PM tables are actually an accumulation of the number of（）.
A. J0 errors detected in a in a specified interval
B. errors detected in a given Errored Seconds （ES）
C. errors detected in a given Severely Errored Seconds （SES）
D. errors the encryption algorithm detects in a specified interval
E. Bit Interleaved Parity （BIP） errors detected in a specified interval
[多项选择]SONET Path Terminating Equipment (PTE) requires which three line codes to be supported for DS1 and DS3 circuits?（） (Choose three.)
A. AMI
B. ESF
C. DUS
D. SSM
E. B3ZS
F. B8ZS
[单项选择]A SONET network typically uses which of the following transmission media?（）
A. Single-mode fiber
B. Multimode fiber
C. Copper
D. Wireless
[单项选择]What protocol enables Ethernet over SONET/SDH encapsulation interoperability between the G-series and ML-series Ethernet cards?（）
A. LEX
B. HDLC
C. GFP-F
D. PPP/BCP
[多项选择]If a SONET/SDH interface transmit link fails between two JUNOS devices, which two alarms or defects would be seen on those devices?（）
A. LOS
B. REI
C. BIP-B3
D. RDI
[多项选择]Which three SONET network elements are used for troubleshooting?（）
A. line
B. path
C. circuit
D. section
E. segment
[单项选择]CVS是一种（）工具。
A. 需求分析
B. 编译
C. 程序编码
D. 版本控制
[单项选择]Which timing mode is appropriate for a SONET NE that is adjacent to a SONET NE using BITS-1 timing source?（）
A. DUS
B. line timing
C. loop timing
D. internal timing
E. through timing
[单项选择]Scrambling of SONET signals is done to （）.
A. prevent the leakage of external fiber emissions
B. provide the optical network with the highest level of security possible
C. assure an even distribution of 1's and 0's for extended transmitter life
D. assure an adequate number of transitions for clock recovery at the receiver
E. prevent the receiver from assuming AIS inadvertently when all 0's are received
[单项选择]ITU-T 接受了 SONET 的概念，将其重新命名为（ ）。
A. ATM
B. DDN
C. PDH
D. SDH
[多项选择]与传统SDH和SONET设备相比，OTN的优势有？
A. 更强的针对E1业务的仿真能力
B. 更强的前向误码纠正（FEC）能力
C. 6级的串联连接监视（TCM）
D. 能够对客户信号进行数据包头的分析
[判断题]SDH的概念最早由美国贝尔通信研究所提出，称为SONET（同步光网络）。
[单项选择] You own a table called EMPLOYEES with this table structure: EMPLOYEE_ID NUMBER Primary Key FIRST_NAME VARCHAR2(25) LAST_NAME VARCHAR2(25) HIRE_DATE DATE What happens when you execute this DELETE statement? DELETE employees;（）
A. You get an error because of a primary key violation.
B. The data and structure of the EMPLOYEES table are deleted.
C. The data in the EMPLOYEES table is deleted but not the structure.
D. You get an error because the statement is not syntactically correct.
