首页 > 题库 > 500-490

Cisco 500-490认证历年真题与练习测试，Cisco企业网络认证 | 思博网络

为在Cisco领域取得成功做好准备吧。500-490通过思博网络提供的全面练习测试和试题来参加认证考试。该考试是Cisco企业网络认证的一部分，旨在评估考生在企业网络方面的知识和技能水平。我们的模拟测试涵盖了各种主题，包括历年真题及其答案、样题以及模拟考试内容。这些测试有助于您评估自己是否准备好参加真正的考试。通过获取考试资料以及使用我们的考试模拟系统，你可以更好地进行考试练习和备考。思博网络提供的高质量练习测试和学习资料，旨在帮助您顺利获得Cisco企业网络的认证。

问题 #1

The major routing policy tools available to BGP include the ?lter-policy and route-policy. The ?lter-policy can only be used to ?lter routes, and the route-policy can only be used to modify routes.

A. True

B. Falsecorrect

正确答案：B

问题 #2

The following description of the characteristics of multi-instance CE is?

A. Since the MCE device is already bound to the VPN, there is no need to bind the VPN on the PE connected to the MCE devicecorrect

B. The MCE device can determine the source of the routing information according to the interface that receives the routing information, and maintain it in the route forwarding table of the corresponding V

C. MCE is implemented by creating their own routing forwarding tables for different VPNs on the MCE device and binding to the corresponding interface o

D. Configuring MCE enables a CE to connect to multiple VPNs at the same time, which cannot only completely isolate the service between different VPN users, but also reduce the input cost of network equipment.

正确答案：A

问题 #3

The following statement about the NSSA area is correct (multiple choice).

A. In the NSSA area where the OSPF neighbor sends hello packets, the N position 0, E within the option field Position 1

B. The NSSA zone must automatically generate a default LSA to access the external network

C. The NSSA zone generates a Category VII LSA to advertise external routing, and the FA address in the Category VII LSA acts to prevent loops

D. In the OSPF neighbor in the NSSA region sends hello packets, position 1 within the option field, position Ecorrect

正确答案：D

问题 #4

If the configuration of IS-IS can be found through the display current-configuration command, but the configuration of IS-IS cannot be found through the display saved-configuration command, which of the following is the possible reason?

A. The running IS-IS configuration in the memory is not saved to Flashcorrect

B. No IS-IS command entered

C. Flash running IS-IS configuration, not saved to memory

D. The running IS-IS configuration in memory has been saved to Flash

正确答案：A

问题 #5

As shown in the figure, as shown, as the AS10 has two paths to access THEA1, the optimal route passed from the 4S23 by default is now sprinkled with S00 to ass4O The odds belt wins even more worrying. Therefore, in the R2 configuration as follows, after the completion of the coordination, it is found that the most worrying route has not changed, and some operations can be adjusted to make the configuration ??[ R2]jpas-path-fiter l permit "4D0& [2]pouteplicy med permit node 10[R2-routepolicyli- match aspath-

A. Configure compare-di fferent-as-med under the BGP process for R2

B. Configure destiny-med under the BGP process for R1

C. Configure compare-di fferent-as-med under the BGP process of Rl

D. Configure the targeted-med under the BGP process for R2

正确答案：BC

问题 #6

If the Option field value in the 0SPFv3 Hello message issued by the router's GIgabit Ethermet0/0 interface is 0x000013, the following description is correct

A. The Gigabit/thernetO/0/0 interface of Router A adds IPv6 routing to computecorrect

B. Router A's Gigabit/thernetO/0/0 interface belongs to the NSSA zone

C. Router A supports AS-An External-LSA floodcorrect

D. Router A is an OSPFv3 device with forwarding capabilitycorrect

正确答案：ACD

问题 #7

Which of the following descriptions of MPLS label space is wrong?

A. When the penultimate hop LSR performs label exchange, if it is found that the exchanged label value is 3, the label will be popped up by default and the packet will be sent to the last hop.

B. 16~1023 is the label space shared by static LSP and static CR-LSP

C. If the outgoing label value is 0, the router will directly discard the packet.correct

D. Above 1024 is the label space shared by dynamic signaling protocols such as LDP, RSVP-TE, MP-BGP and so on.

正确答案：C

问题 #8

When aclient invokes the iMaster NCE-Campus RESTful API, it sends anHTTP request. The server then returns thestatus code 401. Which of the following errors has occurred?

A. The service is unavailable.

B. Access denied.

C. The requested resource does not exist.

D. Unauthorized.

正确答案：D

问题 #9

The BSR/RP mechanism described below describes the correct determination? (Multiple choice questions). There can be multiple C-BSRs in the

A. PIM-SM domain, but only one BSR can be elected.correct

B. BSR collects C-RP information by receiving packets of C-RPcorrect

C. BSR advertises BSR and C-RP information to all routers in the PIM-SM domain via flood bootstrap messagescorrect

D. A C-BSR can also collect C-RP information by receiving C-RP packets

正确答案：ABC

问题 #10

An SRLB is a set of user-speci?ed local labels reserved for SR-MPLS. These labels are locally con?gured and have only local signi?cance. Therefore, they are not advertised through the IGP

A. Truecorrect

B. False

正确答案：A

问题 #11

How do 8021w and 8021D handle BPDUs? (Confirmed). The

A. 8021D bridge only forwards BPDU packets received from the root bridgecorrect

B. The 8021D bridge does not forward BPDU messages

C. The 8021w bridge forwards only BPDU packets received from the root bridge

D. 8021w Bridge does not forward BPDU packet

正确答案：A

问题 #12

The BSR/RP mechanism described below describes the correct determination? (Multiple choice questions). There can be multiple C-BSRs in the

A. PIM-SM domain, but only one BSR can be elected.correct

B. BSR collects C-RP information by receiving packets of C-RPcorrect

C. BSR advertises BSR and C-RP information to all routers in the PIM-SM domain via flood bootstrap messagescorrect

D. A C-BSR can also collect C-RP information by receiving C-RP packets

正确答案：ABC

问题 #13

The correct statement about the IGMP proxy is ? Multi-select

A. AThe downstream interface of the IGMP proxy device generates multicast relay table items

B. BIGMP proxy can detect the link status with the linkage through the information of the member host joining/leaving the multicast group, and realize the rapid switching of the primary and standby device links

C. CIGMP proxy is typically deployed on devices between hosts that are members of the access deviceThe

D. DIGMP proxy device cannot send query messages to downstream member hosts in place of the IGMP queryer to maintain group membership

正确答案：ABC

问题 #14

In order to speed up the sensing speed of link failure in IS-IS network, IS-IS can be linked with BFD.

A. TRUEcorrect

B. FALSE

正确答案：A

问题 #15

When troubleshooting the BGP neighbor relationship, the network administrator finds that two directly connected devices use the Loopack port to establish a connection, so run display current-configuration configuration bgp to check the configuration of peer ebgp-mat-h ??p h p-c tnt. Which of the following descriptions about the command is correct?

A. h p-c unt must be greater than 15

B. h p-c unt must be greater than 255

C. h p-c unt must be greater than 12

D. h p-c unt must be greater than 1correct

正确答案：D

问题 #16

Huawei Open Programmability System (OPS) provides openness and programmability capabilities for network devices and enables users to perform secondary development. To facilitate script compilation, Huawei OPS provides the Python script template. Which of the following statements about the Python script template are correct? (Choose three.)

A. The OPSConnection class is used to invoke RESTful APIs. This class defines methods for establishing HTTP connections. You do not need to modify the methods.

B. The initialization method of the OPSConnection class is def__init__(self, host, port=80). When the OPSConnection class is initialized in the main() function, the host parameter needs to be set to the IP address of the management interface of the network device to be managed.

C. Users need to search for the corresponding URI and the XML content of the HTTP packet body in the RESTful API Reference based on the managed object to be accessed, and modify the Python script template accordingly.

D. The OPSConnection class has four methods: create, delete, set, and get, which encapsulate the PUT, DELETE, POST and GET methods of HTTP.

正确答案：ABC

问题 #17

Which of the following statements is incorrect about configuring fabric access management on iMaster NCE-Campus?

A. Create a server template and then an authentication template.

B. Only one authentication mode can be specified in an authentication template.

C. iMaster NCE-Campus can function as a RADIUS server or Portal server.

D. Authentication templates need to be bound to wired and wireless access points.

正确答案：B

问题 #18

What is the default lease period of the DHCP address pool?

A. 1 month

B. 1 hour

C. 1 daycorrect

D. 1 week

正确答案：C

问题 #19

In order to reduce the number of OSPF routes in certain areas, the OSPf protocol has developed special area functions, and the following description of the characteristics of OSPF special areas is correct

A. ASBR-Sunmary-LSA is allowed to be published to the NSSA region

B. AS-External-LSA is allowed to be published to the Stub region

C. Any OSPF zone can be configured as a special zone

D. Zone can be equipped with zhiyicorrect

正确答案：D

问题 #20

A switch joins a running stacking system after powering up, a behavior known as heap overlay.

A. TRUEcorrect

B. FALSE

正确答案：A

问题 #21

In the following figure, a GRE tunnel is established between R1 and R4 to transmit data from PC1 to PC2. The TTL of the packet sent from GE0/0/1 of R1 is 126. What is the TTL of the packet sent from GE0/0/3 of R3?

A. 125

B. 126

C. 127

D. 124

正确答案：D

问题 #22

If a DR needs to be elected between multicast routers running PIM-SM to be responsible for the sending and receiving of source or member multicast data, which one is described correctly below for the DR election rule?

A. PIM routers with long interface masks are elected dr.

B. Compare the DR priority first; With the same priority, you need to compare the interface IP addresses of the PIM routers to elect drcorrect

C. PIM routers with small IP addresses are elected D

D. PIM routers with low

E. DR priority values are elected D

正确答案：B

问题 #23

Portal authentication, also known as web authentication, is used to authenticate user identities on a web authentication page. Which of the following statements about Portal authentication is incorrect?

A. Before Portal authentication, the authentication client must obtain the IP address and be able to communicate with the Portal server.

B. In most cases, Portal authentication does not require installation of dedicated client software. Therefore, Portal authentication is mainly used in scenarios where no client software is available.

C. When Portal authentication is deployed on the network, clients to be authenticated must support the Portal protocol.correct

D. Portal authentication can authenticate users based on the combination of user name, VLAN, IP address, and MAC address.

正确答案：C

问题 #24

In 6PE and 6VPE networking, no VPN instance needs to be created on PEs.

A. True

B. Falsecorrect

正确答案：B

问题 #25

As shown in the figure, the host implementing the 10.0.1.0/24 network segment accesses 10.0.4.0/25 unidirectionally through virtual system a (vsysa) and virtual system b (vsysb). Which of the following commands need to be used to configure the route?

A. Configure the following command on virtual execution system b: ip router-static vpn-instance vsysb 10. 0.1.0 255.255. 255.0 vpn-instance vsysa

B. Configure the following command on virtual system a: ip route-static 10.0.1.0 255. 255.255.0 10.1.2.1

C. Configure the following command on virtual system a: ip route-static vpn-instance vsysa 10.0.4.0 255.255.255.0 vpn-instance vsysbcorrect

D. Configure the following command on virtual execution system b: ip route-static 10.0.4.0 255. 255. 255.0 10. 0.34.4

正确答案：C

问题 #26

Which of the following protocols is used in Huawei SD-WAN Solution to report device performance data?

A. SNMP

B. NetFlow

C. HTTP/2correct

D. BGP

正确答案：C

问题 #27

On a virtualized campus network, all devices in a VXLAN domain must support VXLAN.

A. Truecorrect

B. False

正确答案：A

问题 #28

Segment Routing (SR) is a technical architecture designed to forward data packets on a network based on the source routing paradigm. SR-MPLS, as its name suggests, is SR based on MPLS label forwarding.

A. Truecorrect

B. False

正确答案：A

问题 #29

How do 8021w and 8021D handle BPDUs? (Confirmed) The

A. 8021D bridge only forwards BPDU packets received from the root bridgecorrect

B. The 8021D bridge does not forward BPDU messages

C. The 8021w bridge forwards only BPDU packets received from the root bridge

D. 8021w Bridge does not forward BPDU packet

正确答案：A

问题 #30

SR is a technology that forwards data packets based on source IP addresses.

A. True

B. Falsecorrect

正确答案：B

查看更多题库 »