dispersion
Optical SNR
span attenuation
four wave mixing
receiver sensitivity
第1题：
A. All "Add" channels require uniform power levels.
B. The flexibility of wavelengths per OADM is limited.
C. It is easier to balance "Pass-Through" and "Add" channels.
D. There is lower pass-through loss using multi-channel OADMs.
E. You can extract a single channel without dropping other channels.
第2题：
A.VLAN support
B.compression
C.authentication
D.sliding windows
E.multilink support
F.quality of service
第3题：
A. It is bidirectional.
B. It carries optimized traffic.
C. It can carry traffic using UDP.
D. It is formed only within a community
第4题：
What are three key pre-installation/configuration considerations when deploying a WX device?（） (Choose three.)
第5题：
What three in combination are factors that can cause four-wave mixing in fiber-optic cables? （）(Choose three.)
第6题：
A. dispersion
B. Optical SNR
C. span attenuation
D. four wave mixing
E. receiver sensitivity
第7题：
What are two important considerations when using 2- or 4-channel 15216 OADMs?（） (Choose two.)
第8题：
A. cabling
B. community topology
C. requires a license key
D. requires two IP addresses
E. registration server designation
第9题：
What are three relevant design considerations when using the 15216 EDFA？（）
第10题：
What can a network administrator utilize by using PPP Layer 2 encapsulation (Choose three.) （）。