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200-201认证历年真题与练习测试，Cisco 200-201 CBROPS | 思博网络

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问题 #1

(Multi-select) esight is a network management software positioned in the enterprise network scenario, which can view the details of onu devices, including the following information?

A. UNT port information

B. speed

C. Optical module temperature

D. The optical module transmits power

正确答案：ABCD

问题 #2

All H.248 commands require the receiver to send back a response. Which of the following is used to indicate the response message?

A. request

B. pendingcorrect

C. ack

D. complete

正确答案：B

问题 #3

When configuring the multicast service on the MA5600T/MA5680T, the multicast WLAN program adopts the static configuration mode. Which of the following options must be configured, otherwise the multicast program may not be able to be viewed?

A. igmp priority

B. igmp profile

C. igmp programcorrect

D. igmp preview

正确答案：C

问题 #4

Among the following options, which description about the H.248 connection model is correct?

A. The connection model cannot be modified during a user session

B. When the session between two users ends, the corresponding association will be usedcorrect

C. A media gateway that only supports point-to-point connections can allow three or more endpoints to exist simultaneously in an association

D. When the user calls successfully, the empty connection starts to be created

正确答案：B

问题 #5

Multicast technology effectively solves the problem of single-point transmission and multi-point reception, and realizes efficient data transmission from point to multipoint in the IP network

A. Truecorrect

B. False

正确答案：A

问题 #6

Which of the necessary conditions does not include for AMR full-rate to AMR half-rate switching to occur?

A. The parameter " Handover allowed in the cell" is set to "Yes"correct

B. The parameter "Allow half-handover in the cell" is set to "Yes "

C. RQI is greater than the " threshold from TCHF to TCH H " and maintains for a period of time

D. The cell load is higher than the "AMR call priority allocation half-rate cell load threshold"

正确答案：A

问题 #7

(Multi-select) Query ppPOE simu-lation results on the MDU side as follows From the query results, it can be judged ()

A. AThe service configuration of ppPoE users is normal

B. BPPPoE user account and authentication method are correct

C. CThe link between MDU tone setting and BRAS is ok

D. DThe MDU management IP is configured correctly

正确答案：ABC

问题 #8

After the VoIP user picks up the phone, he can hear the normal dial tone, but after dialing, the dial tone is not stopped. What are the possible reasons? (Multiple Choice)

A. The MGC did not issue signaling to stop dialing dial tonecorrect

B. A/μ mode settings of DSP Slave is inconsistent of User Boardscorrect

C. Adjacent user side slots small-nets are not removed

D. MG does not report off-hook signal correctlycorrect

正确答案：ABD

问题 #9

The GPON system can realize the security of Internet service data forwarding. Which one is wrong in the description of the data security plan?

A. It is recommended to use the QINQ VLAN attribute for the SVLAN on the OLT, which is convenient for users to deploy PPPoE+/Opton82, MAC anti-attack/anti-spoofing and other security features

B. The outer SVLAN can be allocated based on OLT equipment, PON board or PON port

C. It is recommended that the value of CVLAN be associated with the PON port, optical splitter and ONU port to ensure the uniqueness of CVLAN and facilitate positioningcorrect

D. Based on refined QoS control and management of users and services, Internet access services should be planned in the way of PUPSPV (per user per service per VLAN)

正确答案：C

问题 #10

The Max-Forwards field can be used in the SIP message to solve the loop and avoid endless message forwarding.

A. Truecorrect

B. False

正确答案：A

问题 #11

The effective downstream bandwidth of the GPON PON port is?

A. 2G

B. 1.25G

C. 2.5Gcorrect

D. 2.2G

正确答案：C

问题 #12

When configuring the IPTV service on the U2000, what templates are included in the IGMP template? (Multiple choice)

A. Permission templatecorrect

B. Multicast user profile

C. Program templatescorrect

D. Preview parameter templatecorrect

正确答案：ACD

问题 #13

When using a spectrum analyzer to test the signal strength, the input RF signal at the INPUT port of the spectrum analyzer cannot exceed 10dBm.

A. Truecorrect

B. False

正确答案：A

问题 #14

The IGMP version on the OLT is configured as V2. When the OLT receives the igmr v3 join message forwarded from the OnT, what will it do?

A. Normal forwarding

B. Send a specific group query message

C. Send a general group query message

D. Discard directlycorrect

正确答案：D

问题 #15

In order to prevent network monitoring in the GPON system, the most commonly used method is?

A. Information encryptioncorrect

B. Using physical transmission (not network)

C. Wireless network transmission

D. Use leased line transmission

正确答案：A

问题 #16

The device will periodically send and receive LMCP packets to avoid information loss. If no packets are received within () LACP packet interaction cycles, the system considers the port to be faulty.

A. 3correct

B. 5

C. 4

D. 2

正确答案：A

问题 #17

The maximum splitting ratio supported by 10GGPON is:

A. 1:64

B. 1:256

C. 1:128correct

D. 1:32

正确答案：C

问题 #18

Dialogue statistical indicator "uplink and downlink balance measurement", how much level indicates the real uplink and downlink balance?

A. Level 1

B. Level 11

C. Level 6correct

D. Level 0

正确答案：C

问题 #19

When the inter-BSC handover is successful, what message does the BSC send to the MSC?

A. HANDOVER COMPLETEcorrect

B. HANDOVER PERFORMED

C. HANDOVER SUCCEED

D. HANDOVER DETECT

正确答案：A

问题 #20

esight is a network management software located in the enterprise network scenario, which can view the detailed information of the onu device, including which of the following information? (Multiple choice)

A. UNT port informationcorrect

B. Speedcorrect

C. Optical module temperaturecorrect

D. Transmit power of optical modulecorrect

正确答案：ABCD

问题 #21

How many kinds of acceptance test project are classified by MA5600T Acceptance Test Manual? (Multiple Choice)

A. Basic packagecorrect

B. Advanced package

C. Expansion Pack Acorrect

D. Expansion Pack Bcorrect

正确答案：ACD

问题 #22

When configuring multicast services, the authentication mode is no-auth when adding multicast users. If 10 programs are configured on the MA5600 (the upper device can provide these programs), then the multicast user can watch how many programs?

A. 0

B. 8

C. 10

D. 5

正确答案：C

问题 #23

The SIP user and the server are completed the establishment, maintenance, and removal of a voice path through a series of message interactions. Therefore, each information contained in the SIP text is one-to-one, and there will be no single information values appears multiple times.

A. Ture

B. Falsecorrect

正确答案：B

问题 #24

The OLT can perform traffic shaping through the service virtual port (service-port).

A. Truecorrect

B. False

正确答案：A

问题 #25

In the FTTB/C scenario, the ONU is connected to the phone as an AG device, and there is no sound when the SIP protocol is off-hook. The possible reason is?

A. There is packet loss in the upper layer network of the olt

B. The status of the MG interface on the ONU side is abnormalcorrect

C. Voice server failure

D. The route between ONU and IMS is unreachable

正确答案：B

问题 #26

The called party can ring but does not show the caller number. What are the possible reasons? (Multiple Choice)

A. The softswitch does not configure caller IDcorrect

B. AG did not receive caller information from Softswitchcorrect

C. The environment of the equipment room is not good, for example, the equipment and the distribution frame are not well groundedcorrect

D. The user's phone does not support caller IDcorrect

正确答案：ABCD

问题 #27

Under IGMP snooping, two users under the OLT order the same program, and the OLT sends two join messages to the multicast router

A. True

B. Falsecorrect

正确答案：B

问题 #28

In esight's OnT zero-configuration deployment, when incrementally configuring an OLT, do not pre-configure the OLT.

A. Truecorrect

B. False

正确答案：A

问题 #29

Which of the following statements about defending against MAC Spoofing is incorrect?

A. MAC Anti-MAC Spoofing' feature and WMAC, SC, PPPOE SMAC features are mutually exclusive at VLA level

B. After the anti-MAC Spoofing function is enabled, the system will automatically realize the dynamic binding of the AC address and the service flow

C. After the Anti-MAC Spoofing function is enabled, for I PoE users using fixed IPs, users need to be configured statically

D. Disable the Anti-MAC Spoofing function. The only action involved is to delete certain entries, which does not affect user service applications, but the service forwarding plane will be interrupted.correct

正确答案：D

问题 #30

In GPRS, since only one RLC connection can exist at the same time, one connection can only have one mode of data transmission entity.

A. Truecorrect

B. False

正确答案：A

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