WorksheetsQuiz Miercoles
Total questions: 15
Worksheet time: 30mins
Name
Class
Date
1.
Which of the following ITU-T recommendations defines the OTN frame structure?
a)
G.694
b)
G.652
c)
G.975
d)
G.709
2.
After signals are transmitted for a certain distance in a WDM system, the optical signal-to-noise ratio (OSNR) at the receiver decreases to a certain extent. Which of the following Is the main cause?
a)
EDFAs are used.
b)
Multiplexers and demultiplexers are used.
c)
New types of optical fibers are not used.
d)
Fiber attenuation is excessively high.
3.
According to ITU-T G-709, how many ODU2e signals can be multiplexed into one ODU3 signal?
a)
1
b)
2
c)
3
d)
4
4.
Which of the following is the process of multiplexing ODU1 signals into ODU2 signals?
a)
ODU1 -> ODTU12 -> ODTUG2 -> OPU2 -> ODU2
b)
ODU1 -> ODTUG2 -> ODTU12 -> OPU2 -> ODU2
c)
ODU1 -> ODTU12 -> OPU2 -> ODTUG2 -> ODU2
d)
ODU1 -> OPU2 -> ODTU12 -> ODTUG2 -> ODU2
5.
In the NCE deployment solution, the difference between on-premises deployment and private cloud deployment is whether Huawei provides E2E support for software and hardware.
a)
True
b)
False
6.
The length of an OTUk (k = 1, 2 or 4) frame is fixed at 4 rows and 4080 columns.
a)
True
b)
False
7.
The minimum pipe granularity defined by traditional OTN networks is ODU0, that is, 1.25 Gbit/s. For services with smaller granularities, the resource utilization may be low.
a)
True
b)
False
8.
RSOH, MSOH, HPOH, and LPOH implement monitoring functions in the descending order of monitoring scope.
a)
True
b)
False
9.
Which of the following units is newly added to Liquid OTN?
a)
OTU
b)
OPU
c)
OSU
d)
ODU
10.
Which of the following fibers has the dispersion characteristics complying with the following description? The dispersion at 1310 nm is 0 and the typical dispersion coefficient around 1550 nm is 17 ps/nm.km.
a)
G.652
b)
G.653
c)
G.654
d)
G.655
11.
The frame structure of OTUk signals consists of 4 rows and 4080 columns, including 256 columns of FEC codes. The value of k can be 1, 2, 3 or 4, indicating 2.5G, 10G, 40G and 100G respectively.
a)
True
b)
False
12.
Which of the following are the types of Ethernet services?
a)
EPL
b)
EVPL
c)
EPLAN
d)
EVPLAN
13.
Which of the following are the electrical-layer overheads of OTN?
a)
FAS
b)
GCC0
c)
OOS
d)
PM
14.
Which of the following are included in OTUk signal frames?
a)
OTUk overhead
b)
ODUk overhead
c)
Client signal
d)
FEC
e)
OPUk overhead
15.
Which of the following are related to BIP-8?
a)
OTUk_BEI
b)
OTUk_DEG
c)
OTUk_EXC
d)
OTUk_LOF
100 %
