The RSTP protocol uses the P/A mechanism to speed up the upstream port's transition to the Forwarding state, but what is the reason for no temporary loop? ()
When two OSPF routers form a 2TAY neighbor relationship, LSDB. has been synchronized.
NFV (Network Functional Virtualization), network function virtualization, realizes the deployment of network applications in a software-based way. ()
The network shown in the figure. Which of the following configurations can realize that the host A can access the Internet, but the host B can not? (ABCD) (Multiple Choice Questions)
Which NAT can convert multiple private network addresses into one public network address to access the public network at the same time
Link aggregation is a common technology in enterprise networks. Which of the following descriptions are the advantages of link aggregation technology? ()
Which of the following statements about IPv6 address configuration are correct? ()*
OSPF protocol needs to elect DR and BDR in which of the following network types? ()*
When configuring the PPP authentication mode as PAP, which of the following operations are necessary? ()*
The transmission rate of the Eth-Truk port in manual link aggregation mode is related to ().*
NAT configuration is as follows, which IP can be converted when accessing the public network (RTA) acl2000 (RTA-acl-basic-2000) rule5 permit source 192.168.1.00.0.0.255 RTA-acl-basic-2000) rule 10 permit source 192.168. 2.0 0.0.0.255 RTA-acl-basic-2000)quit RTA)interface serial1/0/0
(RTA-Serial1/0/0 )nat outbound 2000 address-group1 no-pat *
Which of the following statements about IPv6 RA. and RS messages are correct? ()
Which of the following statements about Iv6 address configuration are correct? ()*
Which of the following descriptions about OSPF's DD. packets and LSA. is correct ()*
The network shown in the figure below. Host A is not configured with a gateway, and Host B has the ARP cache of the gateway. Which of the following statements are correct? () (Multiple Choice Question) The answer describes the address wrong
From a security perspective, router A refuses to receive OSPF packets. ICMP packets received from the cO/0/1 interface. Which of the following commands can achieve this requirement? ()
The router enables the FTP service, the user name and password are both huawei, and the root directory of FTP is set to flash:/dhcp/. Which of the following commands must be configured?*
Which of the following MAC addresses cannot be used as the MAC address of the host network card? ()*
The NAT configuration is as follows, which IP can be converted when accessing the public network (RTA) acl2000 (RTA-acl-basic-2000) rule5 permit source 192.168.1.00.0.0.255 RTA-acl-basic-2000) rule 10 deny source 192.168. 1.30
(RTA-acl-basic-2000) quit RTA) interface serial1/0/0 (RTA-Serial1/0/0) nat outbounD.2000*
As shown in the figure below. Which network device can host A and host B use to achieve communication? () (Single-choice question)
A device has been configured to complete Telnet configuration. The device login address is 10.1.1.10. The Telnet user name is admin and the password is Huawei@123. The following is the correct way to use telnertlit to log in to this device? ()
If the Proto of a certain route information in the routing table is Direct, the priority of this route must be0.()
In the campus network, the reliability of the network can be improved by using link aggregation and stacking technology. ()
Which of the following commands can be used to check the session status of the PPPoE client? ()
Which of the following parameters is used in LCP negotiation to detect link loops and other abnormal conditions? ()
In standard STP mode, which of the following non-root switches will forward the C-set BPDU generated by the root switch? ()
By default, on the broadcast networkOSPFWhat is the transmission period of the protocol HELLO message? ()
When the device running STP receives the RSTP configuration BPDU, it will discard it. ()
AP does not need AC. It can independently complete the work of wireless user access, wireless user authentication, and business data forwarding.
The correct setting of the terminal emulation program when configuring the router through the Console ()
The administrator wants to allocate a Hundred P address on the G0/0/0 interface of the router. Which of the following addresses is correct? ()
In a Layer 2 network with redundant links, which of the following protocols can be used to avoid loops? ()
Which state does the 0SPF protocol use to indicate that the adjacency relationship has been established? ()
Which of the following information prompts is used by the VRP operating platform for incomplete input commands? ()
The network administrator hopes to be able to effectively use the P address of the 192.168.176.0/25 network segment. Now that the company’s marketing department has 20 hosts, which of the following address segments is best allocated to the marketing department? ()
Regarding the IPv6 address 2031:0000:720C:0000:0000:09E0:839A:130B, which of the following abbreviations are correct? ()
Since the TCP protocol uses a three-way handshake mechanism when establishing a connection and closing a connection, TCP supports reliable transmission.
VRP supports OSPF multi-process. If the process number is not specified when OSPF is enabled, the process number used by default is ().
PAP authentication is more secure than CHAP authentication because it does not carry passwords in clear text
As shown in the figure, two hosts realize communication between TAs through single-arm routing. When the G0/0/1.2 sub-interface of RTA. receives the data frame sent by host B. to host A., RTA. will execute which of the following Operation? ()
On the broadcast network, both DR and BDR use the multicast address 224.0.0.6 to receive link state update messages ()
When the lease period reaches what percentage does the DHCP client send the lease renewal message for the first time? ()
Which of the following statements is correct for the ACL configured in the Telnet application? ()
Layer 2 ACL can match source MAC, destination MAC, source IP, destination IP and other information. ()
The administrator plans to implement route backup by configuring static floating routes, the correct way to achieve this is ().
The tree network topology is actually a hierarchical star structure, which is easy to expand the network scale, but the higher the level, the more serious the network problem caused by the node failure ()
RTA. Uses NAT technology and realizes many-to-many NAPT address translation by defining an address pool, so that hosts in the private network can access the public network. Assuming that there are only two public network P addresses in the address pool, and they have been assigned to hosts A and B for address conversion, and at this time, if the host also wants to access the public network, the following description is correct ().
If the Proto of a certain route information in the routing table is OSPF, the priority of this route must be 10. ()
The display startup information of the AR2200 router. Regarding these information, the statement is wrong ()
The tracert diagnostic tool in Huawei routers is used to track the data forwarding path. ()
NAPT allows multiple private IP addresses to be mapped to the same public P address through different port numbers. The following description of the port number in NAPT is correct ().
The output information of the sub-interface of a certain router's aggregation port 1 is shown in the figure. Based on this information, which of the following statements is correct? ( )
[Router A] display Interface Eth-Trunk 1.100Eth-Trunk1.100 current state UP Line protocol current state UP Last line protocol up time 2019-03-04 10:22:40 UTC.-08:00 Description: HUAWEI, ARSeries, Eth-Trunk1.100 Interface Route Port, Hash arithmetiC.:According to SIP-XOR-DIP, Maximal BW:2G.Current BW:2G, The Maximum Transmit Unit is 1500 Internet Address is 10.0.12.2/24 IP Sending Frames'Format is PKTFIT ETENT 2, Hardwareaddress 1s 00e0-fc3b-2015 Current system time:2019-03-04 10:24:29-08:00 Last 300 seconds input rate0 bits/sec.0 packets/sec Last 300 seconds output rate 0 bits /seC.0 packets/sec Realtime 0 seconds inputrate 0 bits/seC.0 packets/sec Realtime 0 seconds output rate 0 bits/seC.0 packets/sec Input: 6 packets, 574 bytes,
Output: 7 packets, 638 bytes, Input bandwidth utilization 0% Output bandwidth utilization 0%
PortName Status Weight
GigabitEthernet0/0/1 UP 1 GigabitEthernet0/0/2 UP 1
The Number of Ports in Trunk:2 The Number of UP Ports in Trunk:2*
Link aggregation is a common technology in enterprise networks. Which of the following descriptions are the advantages of link aggregation technology? ()*
Which of the following statements about the election of DR and BDR are correct? ()*
Which of the following IEEE802.11 standards support operation in the 5GHz frequency band? ()
An ACL rule is as follows: Which of the following IP addresses can be matched by permit rules? () rule5per mit ip source10.0.2.00.0.254.255
Compared with STP, which of the following port roles are newly defined in RSTP? ()*
Which of the following statements about IPv6 address configuration is correct? ()*
Which of the following options describes the concept of NFV architecture correct?
Which of the following is not the reason why RSTP can increase the speed of convergence? ()
If the MAC address of an interface is 0OEO-FCEF-OFEC, what is its corresponding EUI-64 address? ()
The topology shown in the figure and the configuration on the interconnection ports of the switch. Can it be judged that the data frame tagged as VLAN10 can be forwarded normally between the two switches? ()(True or False)
(LSW1) interface GigabitEthernet 0/0/1
(LSW1-GigabitEthernet0/0/1) port link-type trunk
(LSW1-GigabitEthernet0/0/1) port trunk pvid vlan 20
(LSW1-GigabitEthernet0/0/1) port trunk allow-passvlan 10
#
(LSW2) interface GigabitEthernet 0/0/1
(LSW2-GigabitEthernet0/0/1) port link-type trunk
(LSW2-GigabitEthernet0/0/1 port trunk pvid vlan 10
(LSW2-GigabitEthernet0/0/1) port trunk allow-passvlan 10
The network shown in the figure below assumes that all routers can enable OSPF at the same time. Which router is the DR in this network? () (Single-choice question)
Using the command mkdirtest in the VRP operating platform, the system will create a directory named test. ()
The MPLS label header is encapsulated between the data link layer header and the network layer header of the message. ()
Refer to the configuration of the single-arm routing in the figure below, you can judge that even if the ARP proxy is not enabled on the sub-interface of R1,The administrative department and the financial department can also visit each other. ()(True or False)
The two switches shown in the figure below have both enabled the STP protocol, which port will eventually be in the Blocking state? ()
The router running the 0SPF protocol can reach the FULL state after completing the LSDB. synchronization. ()
Which information of the data frame is used by the interface to determine whether to forward Layer 2 or Layer 3 forwarding? ()
The router receives a data packet with a destination IP address of 11.0.12.1 from host A. After this data packet is forwarded by the router, what are the destination MAC. and destination IP? ()
As shown in the figure. If host A has the ARp cache table of host B, then host A can ping host B. ()(True or False)
As shown in the figure below, all hosts can communicate normally. Is the correspondence between the MAC address and the port in the MAC address table of SWB correct? () (Single-choice question)
If a windows host is started for the first time, if it uses DHCP to obtain an IP address, what is the source IP address of the first packet sent by this host? ()
What is wrong about the description of the information as shown in the figure? () (Single-choice question)
(RI) display interface g0/0/0
GlgabltEtherneto/0/0 current state :Adainistratively DOWN Line protocol current state :DOWN
The output information of the STP port of a certain switch is shown in the figure. Which of the following statements is wrong? () (Single-choice question)
［Huawei］display stp interface Ethernet 0/0/1
-------［CIST Global Info］［Mode STP］-------
CIST Bridge: 32768.4c1f-cc46-4618
Config TimesHello 4s MaxAge 20s FwDly 15s MaxHop 20
Active Times:Hello 2s MaxAge 20s FwDly 15s MaxHop 20
CIST Root/ERPC:0.4c1f-ccf7-3214/200000
CIST RegRoot/IRPC: 32768.4c1f-cc46-4d18/0
The priority of the LACP protocol is shown in the figure. Switch A and Switch B adopt LACP mode link aggregation, and all interfaces are added to the link aggregation group. At the same time, set the maximum number of active ports to 3. Then which port of switch A is not an active port ? () (Single-choice question)
As shown in the figure below. Which port of the following switches will be blocked? () (Single-choice question)
In the network shown in the figure below, the switch uses VLANIF interfaces to connect with the router sub-interfaces. Which of the following configurations can achieve this requirement? () (Single-choice question)
As shown in the following figure, in the switching network, all switches are running the stp protocol. When the topology is stable, which of the following switches can be used to modify the BPDU sending cycle. Can it affect the SWD configuration BPDU sending cycle? () (Single-choice question)
In the history of WLAN development, which of the following is not included in the main wireless protocol standards in the primary mobile office era? ()
The role of the collaboration layer in the SDN architecture is to complete job deployment based on user intentions. OpenStack belongs to the business collaboration layer ()
NAPT distinguishes the IP addresses of different users through the protocol numbers in TCP, UDP, or IP packets ()
Network switch A and router A are connected by two links. The two links are aggregated in manual load sharing mode. The aggregated port number is 1, and the aggregated link needs to carry VLAN TAG100 when forwarding data. The switch When A uses a trunk link, which of the following configurations need to be used by switch A? ()
UDP is connectionless and must rely on () to ensure the reliability of transmission.
Take effect immediately after the Router ID of the OSPF process is modified ()
Which of the following are not the characteristics of a small campus network? ()
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TESTED 20 Apr 2024
