Worksheetsprueba
Total questions: 77
Worksheet time: 56mins
In order to improve the bandwidth utilization rate, the upstream direction of the GPON system allows multiple ONU to send data at one time.
TRUE
FALSE
The total downstream bandwidth of the 10G EPON PON port is the sum of the EPON downstream bandwidth and the 10G EPON downstream bandwidth.
TRUE
FALSE
A VLAN service template is a set of service-related parameters in VLAN attributes. After a VLAN is bound to a service template, the VLAN has the attributes defined in the template, which is an efficient way to configure VLAN
TRUE
FALSE
What is the pigtail type of the PON optical port?
FC
SC
SL
LC
Access Controller access domain controller: Provides the automation capability of access equipment.
TRUE
FALSE
. When the Access port of the Ethernet switch receives a packet with a tag, which of the following processing behavior is correct?
When the VLANID is the same as the default VLANID, the packet is received
B. Strip the frame's PVID Tag first, and then receive it.
C. When the VLANID is different from the default VLANID, the packet is received.
D. Receive the message and tag it with the default VAN.
The downlink wavelengths in the 10G GPON system are?
1490nm
1577nm
1270nm
1310nm
The VLAN switching plan of the Internet service in a project adopts the translate method, and the C-VLAN ID and S-VLAN ID need to be consistent during planning.
TRUE
FALSE
There is one MA/EA5800-X7 device with only one main control board. It is necessary to check the software version of its main control board. Which of the following commands is correct?
display version 0/8
display version 0/10
display version 0/7
display version 0/6
Which of the following commands can be used to set the terminal timeout and exit time?
Display interface
idle-time out
Display board
system name
In the GPON system, the upstream uses DBA technology to make full use of bandwidth resources, where the DBA template of TYPE 4 represents?
Maximum bandwidth
Fixed bandwidth
Guaranteed bandwidth + maximum bandwidth
Guaranteed bandwidth
For DBAs configuring AP services, which Type do we generally choose?
Type3
Type4
.Type1
Type2
The traffic rate limit can be configured in the traffic template, but the packet priority cannot be set.
TRUE
FALSE
Which of the following methods can realize the mutual communication between Ethernet switches across VLAN? (Multiple choice)
When different VLAN are on the same switch, routing and forwarding can be achieved by setting the IP address of the VLANIF.
By configuring MSTP on the switch, cross-VLAN communication can be achieved.
By deploying Smart-Link on the switch, cross-VLAN communication can be achieved.
When different VLAN are on different switches, cross-VLAN communication can be achieved by reasonably configuring the Hybrid port or the Trunk port.
Which of the following are common Ethernet switch VLAN link types? (Multiple choice)
Mix
Hybrid
Access
Trunk
Which of the following statements about the PPP protocol is correct? (Multiple choice)
PPP link control protocol LCP is not only used to establish, tear down and monitor PP data links, but also mainly negotiate link layer parameters, such as MRU and authentication mode.
Support point-to-multipoint connection
The PPP protocol provides a standard way to transmit packets of various network layer protocols over point-to-point links.
PPP protocol runs at the network layer
Use an optical power meter to measure the optical power on both sides of the optical fiber connector, calculate the attenuation of the optical fiber connector, and find that the attenuation is greater than the theoretical value, what is the possible reason? (Multiple choice)
There are different types of fiber optic connectors.
Multimode fiber is used.
The beam splitter is faulty or the beam splitter is dirty
The fiber optic connector is too tight or too loose.
The end face of the optical fiber connector is dirty, scratched and dented.
. In the PPP protocol, the components of the PPP protocol include? (Multiple choice)
Link Control Protocol LCP of PPP Protocol
Discovery and Session Phase
Port data encapsulation method
.The Network Control Protocol NCP of the PPP protocol
When configuring data on the OLT side, which of the following attributes means that the VLAN needs to be tagged with two layers? (Multiple choice)
Common
Smart
Stacking
Q-IN-Q
hat are the parameters required for setting up the network management workstation? (Multiple choice)
IP address
Routing
name
Group name
VLAN conversion on the user side is generally performed on the MA5680T service board. What are the methods for VLAN conversion?
transparent
translate
add-double
translate-and-transparent
Which of the following does not belong to the VLAN type supported by MA5600T/MA5680T?
Stardard VLAN
Smart VLAN
Sub VLAN
MUX VLAN
In the GPON system, what bandwidth types does type1 in the Tcont type include?
Fixed bandwidth
Guaranteed bandwidth
Best effort
Non-guaranteed bandwidth
Which of the following is not part of the PON network system?
OLT
OAM
ODN
ONU
In the MA5600 software system, which VLAN can only add Ethernet ports?
Standard VLAN
Smart VLAN
Mux VLAN
Super VLAN
.In the EPON network, what are the management protocols running between the OLT and the ONT?
OMCI
SNMP
OAM
IGMP
Which of the following management protocols are running between the OLT and the ONT on a GPON network
OM management
OA management
OMCI management
DHCP management
.In the EPON network, what management and maintenance channel does the OLT use to configure and maintain terminal equipment?
OAM
DHCP
OMCI
SNMP
.Is the following description correct? It is impossible for a route in the routing table to have a mask of 0.0.0.0 Routing items
True
False
With regard to the three VLANs with different attributes (common, QinQ, and Stacking), the MA5600T uses the default tag transformation rules (that is, tag-transform is set to default) when configuring the service flow. Which one of the following descriptions is incorrect?
The default mode of all QinQ VLAN service flows is add
common vlan service flow, for the service flow without tag, the default is add, for the service flow with tag, the default is translate
tacking vlan service flow, the default is add-double for those without tags; the default is translate-and-add for service flows with tags
None of the above
.Is the following description correct? ADSL2+ is an extension of ADSL technology, supporting a downlink rate of up to 24Mbit/s and an uplink rate of 2.5Mbit/s, and the longest transmission distance can reach 6.5km.
True
False
The international professional organization responsible for allocating IP addresses has divided several network segments as private network segments, which can be freely distributed and used by people on private networks. Which of the following is not a network segment of private addresses?
10.0.0.0/8
172.16.0.0/16
192.168.0.0/16
224.0.0.0/8
Which of the following are not features of smart vlan?
There are two types of ports: uplink port and service virtual port
A Smart VLAN can contain multiple uplink ports and multiple service virtual ports
Under the same VLAN, the service flow between service virtual ports can be used for Layer 2 intercommunication
Smart VLAN is mainly used to distinguish users, each user has a VLAN
.MA5600 supports ADSL2+, which of the following descriptions about ADSL2+ is incorrect?
The maximum downlink speed is 24Mbit/s
The farthest reachable distance is 6.5km
Use high frequency bands, sub-channels (32-511) and sub-channels above 512
The spectrum bandwidth is 1.104MHz
Which of the following commands is used to query whether all the boards in the MA5600T/MA5680T 0 frame are operating normally?
display board 0
display frame info 0
display board info 0
display frame info 0/0
Is the following description correct? In a GPON network, the ONU ID must be unique under a PON port.
True
False
.Regarding QinQ VLAN, which of the following statements are correct?
Meet the needs of private network VLAN users for point-to-point private line interconnection across metropolitan area networks.
QinQ VLAN corresponds to a routing interface
During the transmission of the metropolitan area network, the upper device only needs to identify the outer VLAN tag, and the inner VLAN tag is transparently transmitted
The main purpose of QinQ VLAN is to save IP addresses.
Is the following description correct? The key parameters of ODN network are attenuation, insertion loss, and return loss.
True
False
What services does TCONT 0 generally run in ONT?
IPTV
VoIP
Internet
OMCI
Which of the following DHCP messages is sent by the DHCP client?
Discovery
Nak
ACK
Offer
In the GPON network, which of the following reasons may cause the ONT to fail to be automatically discovered?
The optical power received by the ONT is greater than the overload optical power.
The optical power received by the ONT is less than the sensitivity value
The ONT automatic discovery function of the GPON port is not enabled
OLT upstream port is down
The router mainly works in OSI Which layer in the model?
Physical layer
Link layer
Network layer
ransport layer
Which of the following statements about ONT tcont is incorrect?
One ONU/ONT can contain multiple T-CONTs
tcont 1 generally carries OMCI channels
Uplink bandwidth is divided based on T-CONT, and different services use different T-CONTs
The GEM port is used as a service channel. A GEM port can carry one or more services in the flow
MA5680T supports QinQ and VLAN stacking attributes. Which of the following VLANs supports QinQ attributes?
Common vlan
super vlan
sub vlan
smart vlan
.ODN link total loss includes which of the following aspects?
Splitter loss
Splicing and cold splicing loss
Connector, adapter (flange) loss
Optical fiber transmission loss
Two-stage optical splitter is connected to the PON, the first-stage is 1:2, the second-stage optical splitter is 1:16, what is the total splitting ratio?
1:2
1:16
1:18
1:32
In order to ensure the traceability of users and the refined QoS control management based on users and services, Internet services are planned using PUPSPV (per user, service, and VLAN), and the attributes of SVLAN on the OLT are recommended to be configured. For what kind?
smart
common
QinQ
stacking
Is the following description correct? The process of voice fault location can generally be divided into: troubleshooting the external device fault, locating the fault to the specific device, and locating the fault to the board.
True
False
What are the VLAN attributes supported by MA5680T?
Common
QinQ
MuX
Stacking
What are the management protocols running between the OLT and the ONT in the GPON network?
HGMP
OAM
OMCI
DHCP
Which command does the MA5600T use to confirm the auto-discovered board?
board add
board confirm
board add and board confirm
None of the above
.In the GPON network, what will happen to the ONT's long light emission?
All business is normal, no impact
Other ONTs under the same PON port are disconnected
Other ONTs under the entire OLT are disconnected
All of the above are possible
The Ethernet switch works in OSI Which layer of the reference model?
Physical layer
data link layer
Network layer
Transport layer
What are the bandwidth types of DBA in GPON network?
Fix
Max
Assure
Non-assure
Regarding the MA5600T main control board running status indicator (RUN ALM), which of the following states indicates that the board is operating normally?
Green 1s on and 1s off periodically flashing indicates that the board is operating normally
Green 0.5s on and 0.5s off periodically flashing
Green 0.25s on and 0.25s off periodically flashing
Bright green
Is the following description correct? The devices in the ODN network need power supply to work.
True
False
Is the following description correct? The speed standards of Fast Ethernet are100Base-TX,100Base-T4with100Base-FX.
True
False
Which of the following parameters are required to set up a network management workstation?
IP address
Name
Group name
Routing
VLAN division includes which of the following methods?
Based on port
Based on MAC address
Based on agreement
Based on physical location
3.Which of the following statements about GPON is incorrect?
. Each GPON port supports a split ratio of 1:64, which can provide 64 ONT access
There can be multiple T-CONTs on each ONU, and multiple GEMPORTs can be bound to each TCONT
T-CONT is equivalent to a physical cache, and the rate can be limited only if it is bound to a DBA template.
ONU ID must be unique on the OLT
.In the GPON network, which of the following is the role of DBA?
It can improve the uplink bandwidth utilization of the PON port
It can improve the bandwidth utilization of the downstream line of the PON port
More ONUs can be added to the PON port
Increased the upstream bandwidth of the PON port
What does the long ONT PON indicator light mean?
ONT tries to establish a connection with the OLT
ONT receiving optical power is lower than optical receiving sensitivity
ONT and OLT have established a connection
ONT light is abnormal
.What are the correct descriptions of VLAN in MA5600?
The type of sub-vlan can be smart-vlan or mux-vlan
Standard VLAN can include standard Ethernet ports and service virtual ports
A mux-vlan can only contain one uplink port and service virtual port
. A smart-vlan can contain multiple uplink ports and service virtual ports
In a GPON network, which of the following options must be bound to the MA5680T DBA template to take effect?
Tcont
Gemport
PON port
service-port
Is the following description correct? The relationship between the transmission rate of ADSL and the transmission distance is: the longer the transmission distance, the greater the attenuation, the lower the transmission rate, and the relationship between the transmission distance and the attenuation is not linear.
True
False
Which of the following is not a common type of optical fiber connector?
SC
PLC
FC
LC
What is the attenuation of the 1:2 splitter?
5db
8db
3db
13db
Is the following statement correct? In a Gepon network, when thw T-CONT is type1, the system reserves only the specified bandwidth for the service
true
false
In the PPP protocol, if the protocol field is set to 8021, which of the following protocols is used?
LCP protocol
IPCP protool
IP protocol
IPX protocol
The offline deployment of PON devices generates configuration data offline on network planing data. Afther the device is installed and powered on, the configuration data takes effec automatically
True
false
Which of the following statemenabout 802.1Q is incorrect?
The TPID value in an 802.1Q ethernet frame is 8100
Theoretucally, the VLAN IS value ranges fron 0 to 4095
An 802.1Q Ethernet frame contains only four VLAN priorities
An 802.1Q ethernet frame is four bytes linger tan a common ethernet frame
In the Access network technology, whic of the following Access modes can provide the highest Access bandwidth?
XG-PON mode
ADSL moed2+mode
VDSL mode
GPON mode
ICMP is a link layer protocol. ICMP packets triggered by the physical layer, and packets are peovided by IP layer or upper-layer protocols.
True
false
What isthe maximun physical transmisión distance supported by GPHF in the GPON system
10 km
20 km
60 km
40 km
In the xDSL Access mode, the longer the transmisión distance, the greater the attenuation, and the lower the transmisión rate. Is correct? In addition there is no linear relationship between the transmisión distance and attenuation
true
false
If the subnet mask is 255.255.248.o, ehich of the following IP addresses is in the same network segment?
10.52.65.34
10.52.57.34
10.52.62.2
10.52.52.34
The GPON frame has the following features:
The length of a GPON frame is fixed at 125 us
GPON downstream frame consists of a frame header and a payload
The GPON upstream and downstream frame structures are different
GPON downstream grame contains a bandwidth map
