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The ACL on the ARG3 series routers supports two matching sequences, configuration sequence and automatic sorting. ()
After the administrator successfully logs in to the router through Telnet, it is found that the router's interface P address cannot be allocated, then the possible reasons are ()
The two switches shown in the figure below have both enabled the STP protocol. Which port will eventually be in the Blocking state? ()
The information shown in the figure is the port status information displayed on a switch running STP. According to this information, what is wrong in the following description? () (Single-choice question)
The network administrator has captured a data frame on the network, and its destination MAC address is 01-00-5E-A0-B1-C3. The correct statement about the MAC. address is ().
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)
The administrator hopes that all hosts cannot access the Internet from 8:00-17:00 every day, so in the interface configuration of GO/0/1, trahic-HIter outbounD. Which ACL rule needs to be bound? ()
In order to distinguish between different users and provide different network services on the AP. Which of the following can be configured through configuration? ()
Which of the following IE802.11 standards only supports the 24GHz frequency band for communication? ()
At what percentage does the DHCP client send the lease renewal message for the first time? ()
The 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? ()
The network shown in the figure below. Which router is the BDR in this network? () (Single-choice question)
Management Information Base (MIB)Information Base) is a virtual database, this database only exists on NMS. ()
The administrator made the configuration on the router as shown in the figure. At the same time, the administrator wants to assign a shorter lease period to the DHCP address. Which of the following commands should be used? () (Single-choice question)
ip pool pooll
netyork10.10.10.0ask255.255.255.0
gateway-list 10.10.10.1
If the configured ACL rules have an inclusive relationship, it should be noted that the rule numbers of strict conditions need to be sorted first, and the rule numbers of loose conditions need to be sorted later to prevent packets from hitting the rules of loose conditions and stop being pushed down to continue matching. Cannot hit the strict conditions of the rules. ()
The following rules exist in an ACL of a router. Rule deny top source192.168, 1.00.0.0.255 destination 172.16.10.1 0.0.0.0 destination-port eq 21 is the correct statement? ()
Which of the following attributes cannot be used as a parameter to measure C0st? ()
A network administrator of a company wants to be able to remotely manage the network equipment of the branch. Which of the following protocols will be used? ()
The network shown in the figure below. All routers run OSPF. The link cost value is shown in the figure. What is the cost value of the route entry to the network 10.0.0.0/8 in the RTA routing table? () (Single-choice question)
As shown in the figure below. Which network device can host A and host B use to achieve communication? () (Single-choice question)
Among the configuration BPDUs sent by the switch, which bridge D. is unlikely to appear? ()
When the router is powered on, it will read the configuration file from the default storage path to initialize the router. If there is no configuration file in the default storage path, what will the router use for initialization? ()
The MPLS label header is encapsulated between the data link layer header and the network layer header of the message. ()
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? ()
Using the command mkdirtest in the VRP operating platform, the system will create a directory named test. ()
In the broadcast network as shown in the figure, 0SPF runs on four routers. And in the same area. The same network segment. SPF will automatically elect one DR and multiple BDRs to achieve a better backup effect. ()(True or False)
Regarding the configuration shown in the figure, which statement is correct? () (Single-choice question)
The origin of SDN is the separation of transfer and control. The separation of transfer and control is a way to realize SDN, not the essence. ()
Which stage in the life cycle of campus network construction is the beginning of a project? ()
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)
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 DOWNLine 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
For switches running the SIP protocol, the port needs to wait for the forwarding delay in the Learning state before it can be converted to the Forwarding state. ()
As shown in the figure, a static NAT command is deployed on router R1. When the PC accesses the Internet, the destination address in the data packet will not change. ()(True or False)
The router running the OSPF protocol reaches the FULL state first, and then synchronizes the LSDB. ()
Which of the following packet types is used by RADIUS to indicate authentication rejection? ()
The following two configuration commands can realize the router RTA. The main and backup backup routes to the same destination 10.1.1.0: ()
(RTA)ip route--statiC.10.1.1.02412.1.1.1 permanent(RTA)ip route--statiC.10.2.2.02413.1.1.1.
When the IPv4 protocol is used as the network layer protocol, which field is not included in the network layer header? ()
What kind of message does the DHCP server use to confirm that the host can use the IP address? ()
After the network administrator uses the TracertRoute function on the router device, in the data packet sent by the router, the value of the Protoco1 field in the IPv4 header is? ()
What kind of packets does the OSPF protocol use to discover and maintain neighbor relationships? ()
Among the following commands for configuring the default route, the correct one is ()
Which of the following statements is correct for the ACL configured in the Telnet application? ()
Both pwD. and dir commands in the VRP operating platform can view the file information in the current directory, ()
The switch receives a unicast data frame. If the destination MAC of the data frame can be found in the MAC table, the data frame will be forwarded from the corresponding port of this MAC. ()
CSS refers to the combination of two switch devices that support cluster features. Logically combined into one switch device. ()
The subnet mask of a network segment 150.25.0.0 is 255.255.224.0, then () is a valid host address in this network segment. ()
Which of the following does not include the advantages of Wi-Fi6 compared to Wi-Fi5? ()
In a Layer 2 network with redundant links, which of the following protocols can be used to avoid loops? ()
When the host frequently moves, which VLAN division method is most appropriate? ()
Which of the following advantages does the single-arm routing method achieve routing intercommunication between Vlan? ()
The configuration information of a certain interface of the router is shown in the figure. Which VILAN data packet can this port receive? ()
interface Gigabit Ethernet 0/0/2.30 dotlq terainatlon viD.100 ip address 10.0.21.1 255.255.255.0 arp broadcast enable
The output information of the link aggregation port of a certain switch is as follows. If you want to delete Eth-Trunk1, which of the following commands is correct?()
Layer 2 ACL can match source MAC, destination MAC, source IP, destination IP and other information. ()
The administrator hopes that RTA. uses static routing and preferentially sends data packets to RTB's Loopback0 interface through G0/0/1 port, while G0/0/2 is used as a backup. How to configure on RTA to achieve this requirement ()
Which of the following protocols does the RA. message used by IPv6 stateless autoconfiguration belong to? ()
DHCP is an application layer protocol. In order to make it more reliable when assigning P, its transport layer uses TCP protocol.
Layer 3 devices like routers receive data frames based on() Forwarding data frames.
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 ()
The router needs to modify the destination IP address in the data packet when forwarding the data packet ()
The following is the statement about the election of active ports in link aggregation LACP mode. the correct one is? ()
On the VRP operating platform, what command is used to display the current interface configuration in the interface view? ()
Static NAT can only achieve one-to-one mapping between private addresses and public addresses ()
The management of users by NAS devices is based on domains. Each user belongs to a domain, and a domain is a group composed of users belonging to the same domain. ()
Which of the following advantages does the single-arm routing approach achieve inter-VLAN routing and intercommunication? ()
For switches running the STP protocol, the port needs to wait for the forwarding delay in the Learning state to transform into the Forwarding state. ()
In the broadcast network, OSPF runs on four routers in the same area and on the same network segment. OSPF will automatically elect one DR and multiple BDRs to achieve a better backup effect ()
In the network shown in the figure below, the bridge ID of the switch has been marked. Enter the command stp rootsecondary on the sWD. switch and the following switch will become the root bridge of this network. ()
VRP operating system commands are divided into four levels: access level, monitoring level, configuration level, and management level. Which level can run various business configurations and set commands but cannot operate the file system?
Use the command kdir test in the VRP operating platform. The system will create a directory named test.
STA. Before associating to AP, it needs to obtain SSID through some message exchange. What are these messages? ()
In the VRP interface, use the command startupsaved-configuration backup.cfg. Configure the startup.cfg file to be used at the next startup ()
Which of the following statements about the role of the STP protocol ForwarD.Delay is correct? ()
VRP supports OSPF multi-process. If the process number is not specified when OSPF is enabled, the process number used by default is ().
The election of the root switch in STP only compares the priority of the switch, while in RSTP, the priority of the switch and the MAC address are compared at the same time. ()
A certain ACL of the router is in the following rules, rule deny source192.168.2.00.0.0.255 destination172.16.10.20.0.0.0 Which of the following statements is correct? ()
An existing switch is connected to a designated port through a port, but the port does not forward any packets, but can monitor network changes by receiving BPDUs, then the role of the port should be ().
UDP is connectionless and must rely on () to ensure the reliability of transmission.
As shown in the figure, if the command ping 10.1.1.2 is executed on R1, the data frame of VLAN 10 received from LSW2 by LSW1 is tagged. ()(True or False)
The router needs to modify the destination IP address in the data packet when forwarding the data packet. ()
The network shown in the figure below. All links are Ethernet links, and all interfaces of all routers run OSPF protocol, how many DRs are elected in the entire network? () (Single-choice question)
In the network shown in the figure below, the host has an ARP cache, and host A sends a packet to host B. What are the destination MAC and destination IP of this packet? () (Single-choice question)
In the network shown in the figure below, the router receives a data packet with a destination IP address of 11.0.12.1 from host A. This data packet is forwarded by the router. What are the destination mc and destination IP? () (Single-choice question)
The MAC address table of existing switches is shown in the figure. Which of the following statements are correct? () (Single-choice question)
Regarding the corresponding relationship between the access control list number and type, the following description is correct ()
If the MAC address of an interface is 0OEO-FCEF-OFEC, what is its corresponding EUI-64 address? ()
The number of VLANs that can be created using the commands "vlan batch1020 and "vlan batch10to20" respectively is ()
As shown in the figure below. Host A and Host B cannot communicate. ()(True or False)
Which of the following IEEE802.11 standards only supports the 2.4GHz frequency band for communication? ()
Telnetlib is a module that implements the Telnet protocol that comes with Python ()
Two authentication domains "Area1" are configured on a router acting as an authentication serverAnd "AreA.2", If the user uses the correct username'huawei' and password"hello" for authentication. Then which authentication domain will this user be assigned to? ()
The routing table is shown in the figure. Which of the following statements is correct? () (Multiple Choice Questions)
After a fault occurs in the network, the administrator finds that the configuration of a certain router has been modified through troubleshooting. What measures should the administrator take to avoid this situation from happening again? ()*
Currently, the company has a network administrator, and the AR2200 in the company network can be remotely managed by directly entering the password through Telnet. After the two new network administrators arrived, the company hopes to assign their own user names and passwords to all the administrators, as well as different levels of authority. So how should it be done? ()
Which of the following protocols can be used to prevent Layer 2 loops on a campus network?
Which of the following statements about the various versions of the SNMP protocol are correct?
The network administrator hopes that the data packets sent from host A. to host B. pass through the G0/0/3 interface between routers, and the data packets sent from host B. to host A. pass through G0/ between routers. 0/4 interface, which of the following commands can achieve this requirement? ()
As shown in the figure below, are the following statements correct? () (Multiple Choice Questions)
The network shown in the figure below. The host has an ARP cache. Which of the following statements are correct? )(Multiple Choice Questions)
The output information of a certain switch is shown in the figure. Which of the following statements is correct? () (Multiple Choice Questions)
Which of the following options describes the concept of NFV architecture correct?
Which of the following statements are true about the dynamic MAC address table?
The following description of the Forwarding status in the spanning tree protocol is wrong (). ()*
The controller is the core component of SDN. The controller is connected to the device through the southbound interface. The following is missing from the controller southbound agreement? ()
When OSPF protocol establishes adjacency, which of the following parameters must be consistent?*
The router ID of the OSPF process takes effect immediately after being changed.
When the LCP phase of PPP is negotiated, the content of the negotiation includes ()*
When Fit APs go online on an AC, they will necessarily download the system software package from the AC.
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?*
There are hosts in a private network that need to access 1nternet. In order to achieve this requirement, which of the following configurations should be done by the administrator on the edge router of the network? ()*
Which of the following IPv4 addresses can be directly used by a host to access the Internet?
Which NAT can convert multiple private network addresses into one public network address to access the public network at the same time
As shown in the figure below, assuming that the other configurations of the switch are kept in the default state, which port of the following switch will become the designated port? () (Multiple Choice Questions)
According to the VTY user interface configuration shown in the following figure, the user level is set to 3.
When the host accesses the web service of the server, the value of the "Protocol" field at the network layer is 6.
The network is shown in the figure below. The router uses a sub-interface as the host gateway. The gateway IP address is 10.0.12.2. Which of the following commands can achieve this requirement? () (Multiple Choice Questions)
As shown in the figure, all switches run STP. Assume that the path cost of all ports is 200. What is the root path cost contained in the configuration BPDU received by G0/0/4 on SWD?
Which of the following commands can be used to query the configuration information of the device's 0SPF protocol? ()*
Which of the following statements about the output on the router R1 shown in the figure is false?
Which of the following statements about IPv6 address configuration is correct? ()*
What are the advantages of using dynamic host configuration protocol DHCP to assign IP addresses? ()*
In STP, which of the following items may affect the selection of the root switch?
The router uses the sub-interface as the gateway of the host, and the P address of the gateway is 10.0.12.2. Which of the following commands can achieve this requirement? ()
The G0/0/1 interface configuration information of router A is shown in the figure. Which of the following statements are correct? () (Multiple Choice Questions)
In order to realize the network layer function on the VLANIIF interface, need to be configured on the VLANIF interface? ()*
On the VRP, when the mkdir test command is run, the system creates a directory named test.
Which of the following network parameters can be assigned by Dynamic Host Configuration Protocol DHCP? ()*
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
Router A. and Router B are established OSPF neighbor relationship, the OSPF process number of router A. is 1, and the area number is 0. Which of the following configurations on router A can enable router B to obtain the route of the network segment where host A is located? ()
As shown in the figure below. All switches enable the $P protocol and keep other configurations in their default state. When the network is stable, are the following statements correct? () (Multiple Choice Questions)
When deploying ACL on Huawei equipment, which of the following descriptions is correct is ().*
The IP addresses of the VLANIF interfaces of the same switch cannot be the same. ()
System-view (huawei) command-privilege level3 view user save is correct about the above configuration command ()
In the network shown in the figure below, what commands can be entered on the router to make host A ping host B through? ()
The Layer 2 networking of WLAN refers to STA. It uses AC as its own gateway. ()
What is RouterDeadInterval of the OSPF protocol on the broadcast network by default? ()
All interfaces of routers running 0SPF protocol must belong to the same area. ()
In the WLAN architecture, the FIT AP cannot work independently and needs to be managed by AC. Which of the following protocols are used to communicate between FIT AP and AC.? ()
When learning this switch needs to forward the frame with the destination MAC. The address is 5489-98ec-f011, the following description is correct ()
In the network shown in the figure, which of the following descriptions is correct? () (Multiple Choice Questions)
There is no channel overlap in the 14 available frequency bands in the 2.4GHz frequency band. ()
The following two configuration commands can implement router RIA. The route to the same destination 10.1.1.1.0 is active and standby:
When the host frequently moves the office, which VLAN division method is most suitable? ()
When two OSPF routers form a 2-WAY neighbor relationship, the LSDB. has been synchronized. ()
On an interface that uses PPP as the data link layer protocol, you can configure a static route by specifying the next hop address or outgoing interface. ()
The FIT AP can obtain the IP address of AC. through the DHCP Option to establish a CAPWAP tunnel. Which Option needs to be configured on the DHCP server for this? ()
The display startup information of the AR2200 router. Regarding these information, the statement is wrong ()
OSPF Router ID. It must be the same as the IP address of an interface on the router.
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? ()
The Priority field in the VLAN tag can identify the priority of the data frame. What is the scope of this priority? ()
The output information of a router's routing table is shown in the figure. Which of the following statements is correct? () (Multiple Choice Questions)
The RSTP protocol uses the P/A mechanism to speed up the speed of the upstream port to the F orwarding state, but what is the reason for the no temporary loop? . Shorten the time of ForwarD.Del ay
In order to realize the launch of FIT AP, FIT AP first needs to obtain the IP address of AC. Which of the following is not included in the way FITAP obtains the IP address of AC.? ()
AP does not need AC. It can independently complete the work of wireless user access, wireless user authentication, and business data forwarding.
By default, on the broadcast networkOSPFWhat is the transmission period of the protocol HELLO message? ()
For multiple paths to the same destination network, the router needs to select by comparing the magnitude of the Prererence value. If the Preference is the same, the router selects according to the magnitude of the Cost value. ()
Which bridge is in the configuration BPDU sent by the switchID. Impossible to appear?
Which of the following is not the reason why RSTP can increase the speed of convergence? ()
By default, what is the lease period for the DHCP server to assign an IP address?()
Which of the following fields is not included in the HELL0 packet of the OSPF protocol?
In standard STP mode, which of the following non-root switches will forward the C-set BPDU generated by the root switch? ()
UDP is oriented to connectionless and must rely on () to ensure the reliability of transmission. ()
The election of the root switch in STP only compares the priority of the switch, while in RSTP, the priority of the switch is compared with the MAC address at the same time. ()
Which of the following descriptions about Trunk port and Access port are correct ()
For the description of the PPP link establishment process, the following statement is wrong ()
TESTED 16 Sep 2024