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خذ اختبارات أخرى عبر الإنترنت
السؤال #1
Is the following description correct?VDSL2 provides uplink and downlink symmetrical/asymmetrical transmission rates on a pair of twisted pairs. The transmission distance is about 3km. The maximum downlink rate is 52M (symmetrical rate) and the maximum uplink rate is 12M (asymmetrical rate).
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #2
In the EPON network, what management and maintenance channel does the OLT use to configure and maintain terminal equipment?
A. OAM
B. DHCP
C. OMCI
D. SNMP
عرض الإجابة
اجابة صحيحة: A
السؤال #3
The OLT is interconnected with a LAN switch through the GE optical port. The working modes of the two ports can be either auto-negotiation or forced.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #4
In the xDSL access mode, the longer the transmission distance, the greater the attenuation, and the lower the transmission rate. Is it correct? At the same time, there is no linear relationship between transmission distance and attenuation.
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #5
(single) Which of the following does not belong to the communication network category?
A. Telephone network
B. Internet network
C. Radio and television network
D. State Grid
عرض الإجابة
اجابة صحيحة: D
السؤال #6
Is the following description correct?In the EPON network, in order to avoid data conflicts and improve network utilization efficiency, the downstream direction adopts TDMA multiple access mode and arbitrates the data transmission of each ONU.
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #7
What protocol does the FTP protocol run on?
A. RP
B. P
C. DP
D. CP
عرض الإجابة
اجابة صحيحة: D
السؤال #8
Which of the following statements about static route configuration is correct?
A. AThe preference is mandatory
B. BThe next hop is mandatory
C. CThe mask parameter is optional
D. DThe mask parameter is mandatory
عرض الإجابة
اجابة صحيحة: D
السؤال #9
10BASE-TRefers to which medium is defined?
A. Thick coaxial cable
B. Thin coaxial cable
C. Twisted pair
D. optical fiber
عرض الإجابة
اجابة صحيحة: C
السؤال #10
Optical power attenuation, insertion loss, and return loss are the key parameters of ODN network.
A. rue
B. alse
عرض الإجابة
اجابة صحيحة: A
السؤال #11
Is the following description correct?VPI/VCI is a global concept and must be unique under the interface.
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #12
(single) Is the following description correct? VDSL2 provides uplink and downlink symmetric/asymmetric transmission rates on a pair of twisted pairs, with a transmission distance of about 3 km, a maximum downlink rate of 52 M (symmetric rate), and a maximum uplink rate of 12 M (asymmetric rate).
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #13
In the EPON network, what management and maintenance channel does the OLT use to configure and maintain terminal equipment?
A. OAM
B. DHCP
C. OMCI
D. SNMP
عرض الإجابة
اجابة صحيحة: A
السؤال #14
(single) Which of the following access technologies is the fastest?
A. ADSL
B. ADSL2+
C. SHDSL
D. VDSL2
عرض الإجابة
اجابة صحيحة: D
السؤال #15
ICMP is a link layer protocol. ICMP messages are triggered by the physical layer, and responsemessages are provided by the IP layer or upper layer protocol.
A. rue
B. alse
عرض الإجابة
اجابة صحيحة: B
السؤال #16
In the Simple Network Management Protocol (SNMP) structure, the Agent is an agent process running on a managed device. After a managed device receives a request from the NMS, the Agent responds to the request. The Agent collects device status information, operates managed devices by executing commands on the NMS, and reports alarms to the NMS.
A. rue
B. alse
عرض الإجابة
اجابة صحيحة: A
السؤال #17
(single) Is the following description correct? A route with a mask of 0.0.0.0 cannot exist on a route in the routing table.
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #18
Is the following description correct?Ethernet technology is a widely used technology, divided according to different transmission rates, there are10M,100M,1000MThree categories, of which10Mversus100MThe common transmission medium of Ethernet is twisted pair, but1000MDue to the high speed of Ethernet, optical fiber must be used as the transmission medium.
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #19
Is the following description correct? ICMPIs a link layer protocol,ICMPThe message is triggered by the physical layer, and then byIPLayer or higher layer protocol to respond.
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #20
What is the allocation method of terminal identifiers stipulated in the H248 protocol?
A. Assigned by MG
B. Assigned by MGC
C. MG allocation when the terminal is the calling party, and MGC allocation when it is the called party
D. MG allocation when calling, MGC allocation when called
عرض الإجابة
اجابة صحيحة: A
السؤال #21
In the EPON network, what management and maintenance channel does the OLT use to configure and maintain terminal equipment?
A. OAM
B. DHCP
C. OMCI
D. SNMP
عرض الإجابة
اجابة صحيحة: A
السؤال #22
(Single) Is the following description correct? The method of determining whether the received broadcast frame is received by the computer in the local area network is to determine whether the source MAC address of the frame is the same as the hardware address of the local machine.
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #23
Is the following description correct?EPON data packets are variable length. The GPON downstream frame is of fixed length.
A. True
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #24
Is the following description correct?EPON data packets are variable length. The GPON downstream frame is of fixed length.
A. True
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #25
(single) Is the following description correct? VDSL2 provides uplink and downlink symmetric/asymmetric transmission rates on a pair of twisted pairs, with a transmission distance of about 3 km, a maximum downlink rate of 52 M (symmetric rate), and a maximum uplink rate of 12 M (asymmetric rate).
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #26
Which of the following statements about static routes is correct?
A. tatic routes are manually added to a routing table but are not dynamically updated by a routing protocol
B. hen the network topology changes, static routes need to be recalculated
C. tatic routes are learned from another routing protocol and imported to a local routing table
D. tatic routes have been set before a router is delivered to the market
عرض الإجابة
اجابة صحيحة: A
السؤال #27
Is the following description correct?LANThe transmission form is generally bus-based, and the most commonly used corresponding protocols are carrier sensing and collision detectionCSMA/CDprotocol.
A. True
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #28
Which of the following protocols works at the transport layer and is connectionless-oriented?
A. P
B. RP
C. DP
D. CP
عرض الإجابة
اجابة صحيحة: C
السؤال #29
At which layer does the ATM protocol work?
A. Physical layer
B. Link layer
C. Network layer
D. Transport layer
عرض الإجابة
اجابة صحيحة: B
السؤال #30
Which of the following does not belong to the category of communication networks?
A. Telephone network
B. InternetThe internet
C. Radio and Television Network
D. State Grid
عرض الإجابة
اجابة صحيحة: D
السؤال #31
(single) Is the following description correct? The MAC address consists of 48 bits, usually expressed in 12-digit hexadecimal. The first 6 hexadecimal digits are uniformly distributed by the IEEE to determine the uniqueness of the vendor. The last 6 hexadecimal digits are managed by each vendor.
A. True
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #32
(single) Regarding the OLT+MDU networking and OLT+ONT networking, what are the correct statements about multicast configuration?
A. hen the unicast VLAN and the multicast VLAN are different, the configurations on the OLT are the same
B. he configuration of both on the OLT is the same
C. hen the unicast VLAN and the multicast VLAN are different, in the OLT+MDU network, a gemport-maping and Service-port for the multicast VLAN on the MDU should be added to the OLT
D. one of the above
عرض الإجابة
اجابة صحيحة: C
السؤال #33
(single) Is the following description correct? VDSL2 provides uplink and downlink symmetric/asymmetric transmission rates on a pair of twisted pairs, with a transmission distance of about 3 km, a maximum downlink rate of 52 M (symmetric rate), and a maximum uplink rate of 12 M (asymmetric rate).
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #34
(single) What is the maximum transmission distance of SHDSL?
A. 1
B. 6KM
C. 10KM
D. 20KM
عرض الإجابة
اجابة صحيحة: B
السؤال #35
(single) Which is the correct sorting of the loss of the fiber connection point?
A. ctive connection> Cold connection> Welding
B. ctive connection > fusion > cold junction
C. old junction>active connection>welding
D. elding> Cold junction> Active connection
عرض الإجابة
اجابة صحيحة: A
السؤال #36
(single) UA5000 If the PVM and the IPM are connected to each other, and the voice service and the broadband service are provided at the same time, the voice service is transmitted to the IPM through the internal IP channel, and then the uplink interface of the IPM board is transmitted to the upper layer network. Which is set to?
A. AN
B. AN
C. ntegrated
D. LONE
عرض الإجابة
اجابة صحيحة: C
السؤال #37
Is the following description correct?EPON data packets are variable length. The GPON downstream frame is of fixed length.
A. True
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #38
(single) Is the following description correct? VDSL2 provides uplink and downlink symmetric/asymmetric transmission rates on a pair of twisted pairs, with a transmission distance of about 3 km, a maximum downlink rate of 52 M (symmetric rate), and a maximum uplink rate of 12 M (asymmetric rate).
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #39
When carrying services, the GEM port needs to map services to the T-CONT units for upstream service scheduling. Each ONU supports multiple T-CONTs, and different types of T-CONTs can be selected for different service types.
A. TRUE
B. FALSE
عرض الإجابة
اجابة صحيحة: A
السؤال #40
Is the following description correct? Computer network card MAC address is IETF Uniformly assigned to each manufacturer, the only one in the world.
A. rue
B. alse
عرض الإجابة
اجابة صحيحة: B
السؤال #41
ICMP is a link layer protocol. ICMP messages are triggered by the physical layer, and response messages are provided by the IP layer or upper layer protocol.
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #42
Is the following description correct? The key parameters of ODN network are attenuation, insertion loss, and return loss.
A. rue
B. alse
عرض الإجابة
اجابة صحيحة: A
السؤال #43
(single) Is the following description correct? The VPI/VCI of an ATM cell is only of local importance, and its VPI / VCI value can be changed at each node in the transmission process.
A. True
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #44
Which of the following protocols are included in Point-to-Point Protocol (PPP)? (Select All that Apply)
A. Link control protocol (LCP)
B. ICMP
C. Network control protocol (NCP)
D. IGMP
عرض الإجابة
اجابة صحيحة: AC
السؤال #45
Is the following description correct?Computer network cardMACaddress isIETFUniformly assigned to each manufacturer, the only one in the world.
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #46
In the EPON network, what is the upstream and downstream bandwidth of the PON port?
A. 1Gbps/1Gbps
B. 1
C. 1
D. 1Gbps/2Gbps
عرض الإجابة
اجابة صحيحة: B
السؤال #47
GPON is an Ethernet-based passive optical access technology that complies with IEEE 802.3ah.
A. RUE
B. ALSE
عرض الإجابة
اجابة صحيحة: B
السؤال #48
Is the following description correct?It is impossible for a route in the routing table to have a mask of0.0.0.0Routing items.
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #49
What is the attenuation of the 1:2 splitter?
A. db
B. db
C. db
D. 3db
عرض الإجابة
اجابة صحيحة: C
السؤال #50
Among the access technologies of the access network, which of the following access methods can provide the largest access bandwidth?
A. ADSL
B. ADSL 2+
C. VDSL
D. GPON
عرض الإجابة
اجابة صحيحة: D
السؤال #51
What is the allocation method of terminal identifiers stipulated in the H248 protocol?
A. G allocation when the terminal is the calling party, and MGC allocation when it is the called party
B. ssigned by MG
C. G allocation when calling, MGC allocation when called
D. ssigned by MGC
عرض الإجابة
اجابة صحيحة: B
السؤال #52
(single) Which of the following is correct in the GPON network?
A. ifferent T-CONT with Port-ID identification
B. ifferent GEM-PORT with Alloc-ID logo
C. ifferent ONUs use Port-ID identification
D. ifferent ONUs are identified by ONU IDs
عرض الإجابة
اجابة صحيحة: D
السؤال #53
(single) Which of the following H.248 protocol message types can be initiated by the MG?
A. uditValue
B. erviceChange
C. uditCapabilities
D. odify
عرض الإجابة
اجابة صحيحة: B
السؤال #54
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.
A. True
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #55
In the access technology of the access network, which of the following access modes can provide the maximum access bandwidth? GPON (Gigabit Passive Optical Network) is a fiber-based access technology that supports downstream bandwidth up to 2.5 Gbps and upstream up to 1.25 Gbps, far exceeding the bandwidth capabilities of DSL technologies. ADSL (up to 8 Mbps), ADSL2+ (up to 24 Mbps), and VDSL (up to 100 Mbps over short distances) are copper-based technologies with significantly lower maximum bandwidth compared to GPON.
A. ADSL
B. GPON
C. ADSL 2+
D. VDSL
عرض الإجابة
اجابة صحيحة: B
السؤال #56
Is the following description correct?TTLMainly to preventIPThe cyclic forwarding of packets in the network wastes network bandwidth.
A. True
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #57
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.
A. ALSE
B. RUE
عرض الإجابة
اجابة صحيحة: A
السؤال #58
(single) Is the following description correct? ICMP is a link layer protocol. ICMP messages are triggered by the physical layer and then responded by the IP layer or higher layer protocols.
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #59
The OLT supports multiple protection switching modes for GPON lines. The ( ) technology issupported by the OLT to protect the backbone and branch optical fibers at the same time.
A. ype C
B. ype D
C. ype A
D. ype B
عرض الإجابة
اجابة صحيحة: A
السؤال #60
What is the attenuation of the 1:2 splitter?
A. 5db
B. 8db
C. 3db
D. 13db
عرض الإجابة
اجابة صحيحة: C
السؤال #61
Two splitters (primary splitter and second splitter) are cascaded under the PON port, and the splitting ratio is 1:2 and 1:16 respectively.What is the total split ratio?
A. 1:2
B. 1:16
C. 1:18
D. 1:32
عرض الإجابة
اجابة صحيحة: D
السؤال #62
In the UA5000 chassis of the high-density PVM main control, which command needs to be used when configuring the chassis connection?
A. ink add
B. rame link
C. rame connect
D. rame add
عرض الإجابة
اجابة صحيحة: C
السؤال #63
Fast Ethernet rate standards include 100Base-TX, 100Base-T4 and 100Base-FX.
A. rue
B. alse
عرض الإجابة
اجابة صحيحة: A
السؤال #64
The OLT supports multiple protection switching modes for GPON lines. The ( ) technology is supported by the OLT to protect the backbone and branch optical fibers at the same time.
A. Type C
B. Type D
C. Type A
D. Type B
عرض الإجابة
اجابة صحيحة: A
السؤال #65
(Single) What kind of domain can a VLAN be considered?
A. Conflict domain
B. Broadcast domain
C. Administrative domain
D. Physical area
عرض الإجابة
اجابة صحيحة: B
السؤال #66
In the PPP protocol, if the protocol field is set to 8021, which protocol does it indicate?
A. LCP protocol
B. IPCP protocol
C. IP protocol
D. IPX protocol
عرض الإجابة
اجابة صحيحة: B
السؤال #67
In the EPON network, what is the upstream and downstream bandwidth of the PON port?
A. 1Gbps/1Gbps
B. 1
C. 1
D. 1Gbps/2Gbps
عرض الإجابة
اجابة صحيحة: B
السؤال #68
Is the following description correct?The goal of ATM, that is, the biggest feature of ATM, is to achieve the best network resource utilization for any form of business distribution. To achieve this goal, statistical multiplexing of network resources is necessary.
A. True
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #69
According to the ITU-T G.984.X series standards, the downstream transmission wavelength of theGPON network is ( ) nm.
A. 490
B. 50
C. 310
D. 550
عرض الإجابة
اجابة صحيحة: A
السؤال #70
(single) Is the following description correct? The VPI/VCI of an ATM cell is only of local importance, and its VPI / VCI value can be changed at each node in the transmission process.
A. True
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #71
IPA part of the fields in the message are specifically used to describe the life cycle of the message, namelyTTLValue, what is its maximum value?
A. 255
B. 256
C. 1023
D. 1024
عرض الإجابة
اجابة صحيحة: A
السؤال #72
(single) The MA5600T confirms the auto-discovered board. Which command is used?
A. oard add and board confirm
B. oard confirm
C. one of the above
D. oard add
عرض الإجابة
اجابة صحيحة: B
السؤال #73
The Ethernet switch works inOSIWhich layer of the reference model?
A. Physical layer
B. data link layer
C. Network layer
D. Transport layer
عرض الإجابة
اجابة صحيحة: B
السؤال #74
(single) Is the following description correct? The VPI/VCI of an ATM cell is only of local importance, and its VPI / VCI value can be changed at each node in the transmission process.
A. True
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #75
(single) Is the following description correct? The goal of ATM, the biggest feature of ATM, is to achieve optimal network resource utilization for any form of service distribution. To achieve this goal, statistical reuse of network resources is required.
A. True
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #76
In the EPON network, which parameter is used to filter the downstream data on the ONU?
A. GEM-PORT ID
B. ALLOC ID
C. ONT ID
D. LLID
عرض الإجابة
اجابة صحيحة: D
السؤال #77
(single) A part of the field in the IP packet is used to describe the lifetime of the packet, that is, the TTL value.What is the maximum value?
A. 255
B. 256
C. 1023
D. 1024
عرض الإجابة
اجابة صحيحة: A
السؤال #78
In the GPON network, what management protocols are running between the OLT and the ONT?
A. OM management
B. OAM management
C. OMCl management
D. DHCP management
عرض الإجابة
اجابة صحيحة: C
السؤال #79
Is the following description correct? When the ONT is offline, the MA5600T/MA5680T can perform ONT PPPoE simulation test operations.
A. rue
B. alse
عرض الإجابة
اجابة صحيحة: B
السؤال #80
(single) Among the access technologies of the access network, which of the following access modes can provide the largest access bandwidth?
A. ADSL
B. ADSL 2+
C. VDSL
D. GPON
عرض الإجابة
اجابة صحيحة: D
السؤال #81
In the GPON system, which of the following bandwidth types belong to T-CONT type 1?
A. ixed bandwidth
B. uaranteed bandwidth
C. est effort bandwidth
D. on-guaranteed bandwidth
عرض الإجابة
اجابة صحيحة: A
السؤال #82
The customer needs to access the following information points: AP, PC, IP camera, and IPTV. The AP is powered by the ONU. The types of ONU interfaces include:
A. GE, GE (PoE), Wi-Fi
B. GE, GE (PoE), RF
C. GE, GE (PoE), POTS
D. GE, GE (PoE)
عرض الإجابة
اجابة صحيحة: A
السؤال #83
In the GPON system, which of the following bandwidth types belong to T-CONT type 1?
A. Fixed bandwidth
B. Guaranteed bandwidth
C. Best effort bandwidth
D. Non-guaranteed bandwidth
عرض الإجابة
اجابة صحيحة: A
السؤال #84
Is the following description correct?In the EPON network, in order to avoid data conflicts and improve network utilization efficiency, the downstream direction adopts TDMA multiple access mode and arbitrates the data transmission of each ONU.
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #85
What are the possible reasons why the ONT cannot be automatically discovered on the OLT?
A. ONT received optical power is greater than overload optical power
B. ONT received optical power is less than sensitivity
C. GPON port automatic discovery function is closed
D. Uplink port status is offline
عرض الإجابة
اجابة صحيحة: ABC
السؤال #86
(single) Is the following description correct? In the routing table entry, only the next hop and the outbound interface (Nexthop/Interface) can be used for the same destination address and mask (Destination/Mask).
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #87
Among the access technologies of the access network, which of the following access methods can provide the largest access bandwidth?
A. ADSL
B. ADSL 2+
C. VDSL
D. GPON
عرض الإجابة
اجابة صحيحة: D
السؤال #88
(single) What is the correct statement about IP routing?
A. Routing is the concept of the second layer in the OSI model
B. Any route must include the following three parts: source address, destination address, and next hop
C. In the LAN, routing includes the following two parts: IP address and MAC address
D. IP routing is the path information that guides IP packet forwarding
عرض الإجابة
اجابة صحيحة: D
السؤال #89
A trunk interface allows packets from VLAN 100, VLAN 200, and VLAN 300 to pass through.However, only packets from VLAN 100 and VLAN 200 carry tags, and packets from VLAN 300 do not carry tags. Which of the following is the possible cause?
A. VRP is enabled on this interface
B. he PVIDs of this port are 100 and 200
C. he PVID of this port is 300
D. he port trunk allow-pass vlan 100 200 command is set during trunk port configuration, but VLAN300 is not included
عرض الإجابة
اجابة صحيحة: C
السؤال #90
Which of the following statements about static routes is correct?
A. tatic routes are manually added to a routing table but are not dynamically updated by a routing protocol
B. hen the network topology changes, static routes need to be recalculated
C. tatic routes are learned from another routing protocol and imported to a local routing table
D. tatic routes have been set before a router is delivered to the market
عرض الإجابة
اجابة صحيحة: A
السؤال #91
(single) Is the following description correct? The VPI/VCI of an ATM cell is only of local importance, and its VPI / VCI value can be changed at each node in the transmission process.
A. True
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #92
Which attribute of VLAN supports two layers of VLAN tags in uplink packets?
A. Super VLAN function
B. Common VLAN function
C. QinQ VLAN function
D. Stacking VLAN function
عرض الإجابة
اجابة صحيحة: CD
السؤال #93
According to the ITU-T G.984.x series of standards, what is the downstream transmission wavelength of the GPON network in nm?
A. 850
B. 1310
C. 1490
D. 1550
عرض الإجابة
اجابة صحيحة: C
السؤال #94
Is the following description correct?In the EPON network, in order to avoid data conflicts and improve network utilization efficiency, the downstream direction adopts TDMA multiple access mode and arbitrates the data transmission of each ONU.
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #95
Is the following description correct?EPON data packets are variable length. The GPON downstream frame is of fixed length.
A. True
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #96
(single) Which layer of the OSI reference model does the Ethernet switch work on?
A. Physical layer
B. Data link layer
C. Network layer
D. Transport layer
عرض الإجابة
اجابة صحيحة: B
السؤال #97
If the subnet mask is 255.255.248.0, which of the following IP addresses belong to the same network segment?
A. 10
B. 10
C. 10
D. 10
عرض الإجابة
اجابة صحيحة: BC
السؤال #98
What is the maximum physical transmission distance supported by GPHF in the GPON system?
A. 10 km
B. 20 km
C. 60 km
D. 40 km
عرض الإجابة
اجابة صحيحة: D
السؤال #99
(single) Which of the following access technologies is the fastest?
A. ADSL
B. ADSL2+
C. SHDSL
D. VDSL2
عرض الإجابة
اجابة صحيحة: D
السؤال #100
Is the following description correct?In the EPON network, in order to avoid data conflicts and improve network utilization efficiency, the downstream direction adopts TDMA multiple access mode and arbitrates the data transmission of each ONU.
A. True
B. False
عرض الإجابة
اجابة صحيحة: B

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