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The MAC address table of existing switches is shown in the figure. Which of the following statements are correct? () (Single-choice question)
The two-layer switch is a data link layer device, which can identify the MAC address information in the data frame, and record these MAC addresses and corresponding port information in its own MAC address table. ()
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)
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
As shown in the broadcast network. 0SPF runs on four routers. And in the same area. Same network segment. OSPF will automatically elect one DR and multiple BDRs to achieve a better backup effect. ()(True or False)
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)
In the STP protocol, which of the following factors will affect the election of the root switch? ()*
Which of the following network parameters can be assigned by Dynamic Host Configuration Protocol DHCP? ()*
Regarding the control plane of the device, which of the following statements is correct? ()*
Which authorization modes are supported by AAA on Huawei ARG3 series routers? ()*
The classic network forwarding method is based on router routing table forwarding. The forwarding method of OpenFlow switches is based on flow table forwarding. Which of these two forwarding methods are correct? ()*
Which of the following IEEE802.11 standards support operation in the 5GHz frequency band? ()
Which of the following statements about IPv6 RA. and RS messages are 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*
As shown in the figure, after the two routers are configured with 0SPF, the administrator configures the
According to the following configuration, which statement is correct? () (Multiple Choice Questions)
Int g0/0/1
Int g0/0/2
Port hybrid pvid vlan 20
Port hybrid pvid vlan 10
Port hybrid untagged vlan 10 20
Port hybrid untagged vlan 10 20
Through sR (Segment Routing), an explicit path can be easily defined. The nodes in the network only need to maintain the SegmentRouting information to cope with the real-time and rapid development of the business. What are the following characteristics of Segment Routing?
ip route-static.10.0.2.2255.255.255.25510.0.12.2 preference20, the correct statement about this command is ()
Which of the following fields are present in both IPv6 and IPv4 packet headers? ()*
The output information of the router R1 routing table is shown in the figure. Which of the following statements is correct? () (Multiple Choice Questions)
＜R1＞display ip routing-table
Route Flags: R-relay, D-download to fib
OSPF protocol needs to elect DR and BDR in which of the following network types? ()*
The output information of a certain switch is shown in the figure. Which of the following statements is correct? () (Multiple Choice Questions)
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)
The output information of a certain device is shown in the figure. Which of the following statements are correct? () (Multiple Choice Questions)
Protocol Priority Switch A. and Switch B. adopt LACP mode link aggregation, and all interfaces join 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? ()
ifoneLength/Type = 0X8100 taught by the Ethernet data, which of the following is correct? ()
The switch G0/0/1 port configuration information is shown in the figure. Which VLAN data frame does the switch forward without VLANTAG? ? () (Single-choice question)
The output information of the router is shown in the figure. Which of the following statements is wrong? () (Single-choice question)
The broadcast address corresponding to the AEthernet0/0/0 interface is 10.0.12.255
B.The physical link of the Ethernet0/0/0 interface is normal
C.Ethernet0/0/0 interfaceThe MTU value is 1480
D.Ethernet (The IP address of the /0/0 interface is 10.0.12.1/24
Which information of the data frame is used by the interface to determine whether to forward Layer 2 or Layer 3 forwarding? ()
In the VRP interface, use the command startup saved-confi guration backup.cfg. Configure the backup.cfg file to be used at the next startup. ()
As shown in the figure, is the description of this network topology correct? () (Single-choice question)
In the MAC address table of the switch, which of the following entries will not age?
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 ().
The network shown in the figure below. Which router is the BDR in this 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)
Which of the following are not the characteristics of a small campus network? ()
The MAC address table of a certain switch is shown in the figure. If the switch receives a data frame with a destination MAC of 5489-9811-0b49 from port Eth0/0/2, which of the following statements is correct? ()
The broadcast address is a special address in which the host bits in the network address are all set to 1, and it can also be used as a host address. ()
Which of the following types of addresses are not included in IPv6 addresses? ()
The last option field (option) of 1Pv4 is variable-length optional information. What is the maximum length of this field? ()
Layer 2 ACL can match source MAC, destination MAC, source IP, destination IP and other information. ()
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 ().
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? ()
STA. Before associating to AP, it needs to obtain SSID through some message exchange. What are these messages? ()
In what state does the OSPF protocol determine the master-slave relationship of DD. packets? ()
PAP authentication is more secure than CHAP authentication because it does not carry passwords in clear text
The Management Information Base (MIB) (Management Information Base) is a virtual database that only exists on the NMS. ()
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? ()
The network structure and 0$PF partition are shown in the figure. In the figure, except for RTA., the routers RTB.RTC. and RTD. are ABR routers. ()
(RTA) ip route-statiC.10.1.1.02412.1.1.1 permanent
(RTA) ip route-statiC.10.2.2.02413.1.1.1.
How many types of data flows with different service levels can be marked based on MPLS labels? ()
If the broadcast address of a network is 172.16.1.255, then its network address may be ().
Which of the following fields is not included in the HELL0 packet of the OSPF protocol? ().
Layer 3 devices like routers receive data frames based on () Forwarding data frames.
What kind of message does the DHCP server use to confirm that the host can use the IP address? ()
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. ()
The following description about the specified port of the spanning tree is correct ()
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. ()
FAT AP can independently complete wireless user access, wireless user authentication, and business data forwarding without AC. ()
According to the command shown in the figure, which of the following descriptions is correct? () (Multiple Choice Questions)
A company applies for a C. IP address segment, which needs to be evenly distributed to 8 subsidiaries. The largest subsidiary has 14 computers. Different subsidiaries must be in different network segments, so the subnet mask should be set. for()
In the network shown in the figure below, what commands can be entered on the router to make host A ping host B through? ()
What is RouterDeadInterval of the OSPF protocol on the broadcast network by default? ()
There is no channel overlap in the 14 available frequency bands in the 2.4GHz frequency band. ()
Management Information Base (MIB) Information Base) is a virtual database, which only exists on the NMS. ()
For the description of the PPP link establishment process, the following statement is wrong ()
The output information of a router's routing table is shown in the figure. Which of the following statements is correct? () (Multiple Choice Questions)
On Huawei equipment, if AAA authentication is used for authorization, when the remote server does not respond, authorization can be performed from the network equipment side ()
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 two OSPF routers form a 2TAY neighbor relationship, LSDB. has been synchronized.
What kind of message does the OSPF protocol use to confirm the received LSU message? ()
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.? ()
Which of the following is not the reason why RSTP can increase the speed of convergence? ()
When using the SNMPv1 protocol to manage network devices, which of the following commands is used by the network management system to complete the configuration of the network devices? ()
The network administrator of a certain company wants to uniformly divide the users who often access the company network from different switches to VLAN 10 when they frequently change office locations. Which of the following methods should be used to divide VLANs? ()
TESTED 25 Apr 2024