HCIA-Datacom V1.0 Exam Questions and Answers
The MPLS label header is encapsulated between the data link layer header and the network layer header of the message. ()
Regarding the configuration shown in the figure, which statement is correct? () (Single-choice question)
"The network administrator created VLAN 10 on the Layer 3 switch and configured an IP address under the virtual interface of the VLAN. When using the command "display ip interface brief to view the port status, and found that the VLANIF10 interface is in the dow state, what should be done? Operation to restore the VLANIF10 interface to normal? ()
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)
Which of the following SNMP packets are sent to the NMS by the Agent on the managed device ()
As shown in the figure. All four switches are running $TP. Various parameters are set to default values. If the GO/0/2 port of switch C is blocked and cannot send configuration BPDUs through this port, how long will it take for the blocked port in the network to enter the forwarding state? () (Single-choice question)
Which of the following IEEE802.11 standards only supports the 2.4GHz frequency band for communication? ()
Which of the following statements about the usage scenarios of the DHCP protocol is correct? ()
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
As shown in the figure below: The wrong statement is: ()acl number 2000 rule 5 deny source 200.0.12.00.0.0.7 rule 10permit source200.0.12.00.0.0.15 interfaceGigabitEthernetO/0/1 traffic-filteroutbounD.ac12000
The configuration information of a certain router is shown in the figure. Which of the following statements are correct? () (Single-choice question)
#
aaa
authentication-scheme default
authentication-scheme huawei
authentication-mode radius
authorization-scheme default
authorization-scheme huawei
accounting-scheme default
domain default
domain default admin
domain huawei
authentication-scheme huawei
authorization-scheme huawei
local-user huawei password cipher 123456
local-user huawei@huawei password cipher 654321
#
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. After this data is forwarded by the router, what are the destination MAC and destination IP? )(Single-choice question)
The configuration information of a certain port of the switch is shown in the figure. What is the PVID of this port? () (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)
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? ()
Network as shown in the picture. The administrator hopes that all hosts cannot access the Web service (the port number is 80). Other services can be accessed normally. In the interface configuration of G0/0/1, which ACL rule needs to be bound to trattie-frilter outbound?
Which of the following 0SPF protocol packets can ensure the reliability of LSA update? ()
In the OSI reference model, what can complete end-to-end error detection and flow control is ()
Three Layer 2 switches are interconnected with one HUB. The switches are all enabled with STP bridge ID. Refer to the figure below. What are the default errors of other configurations? () (Single-choice question)
By default, the bridge priority of Huawei switches is 32768 ()
Which packet type is used by network devices running the SNMPv1 protocol to actively send alarm information? ()
What command can be typed in the system view to switch to the user view? ()
You can manually specify the source address or source interface of the CAPWAP tunnel on the AC. ()
As shown in the figure, when the switch needs to forward frames with the destination mac address of 5489-98ec-f011, which of the following descriptions is correct? () (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? ()
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)
As shown in the figure below, which of the following statements is correct? () (Single-choice question)
The ACL configuration information of a certain router is shown in the figure. Which of the following statements is correct? () (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)
The network shown in the figure below. The administrator wants RTA to use a static router. Priority is given to sending data packets to RTB's LoopbackO interface through G0/0/1 port. At the same time, G0/0/2 is used as a backup. Then any configuration on RTA can be Realize this requirement? () (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)
What identifies the coverage area of an AP in a WLAN? ()
The following figure shows the routing table of a router. When the router receives a destinationIWhen the P address is a data packet of 9.1.1.1,The router will forward according to the route of 9.1.0.0/16 because the mask length of this route is longer. ()(True or False)
When the switch port sends a data frame that carries the same VLANTAG and PVID., it must be stripped of VLANTAG and forwarded. ()
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)
Which of the following commands can change the device name to huawei? ()
Network equipment running the SNMP protocol can take the initiative to report alarm information so that network administrators can find faults in time. ()
If the MAC address of an interface is 0OEO-FCEF-OFEC, what is its corresponding EUI-64 address? ()
Which of the following levels is not a common network level in mid-sized campus network architecture?
As shown in the figure below, in the MAC address table of the network. SWA and SWB, which of the MAC addresses, VLANs, and ports are correct? () (Single-choice question)
As shown in the figure, is the description of this network topology correct? () (Single-choice question)
What is the function of the command port trunk allow pass vlan all? ()
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? ()
Which of the following attributes cannot be used as a parameter to measure C0st? ()
There are multiple route entries to the same destination network in the routing table. These routes are called? ()
All the devices in the picture can communicate normally. Is the corresponding relationship between the MAC address table of $WA and the port correct? () (Single-choice question)
What is the corresponding Solicited.-node multicast address for IPv6 iAilt2019::8:AB.? ()
The two switches shown in the figure below have both enabled the STP protocol. Which port will eventually be in the Blocking state? ()
The output information of the router is shown in the figure. Which of the following statements is wrong? () (Single-choice question)
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)
All ports on the root bridge exchange machine are designated ends ()
How to deal with the data frame sent by the Trunki port? ()
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)
As shown in the figure, host A and host B want to implement inter-VLAN communication through single-arm routing. What configuration should be done under the G0/0/1.1 interface of RTA?()(Single-choice question)
As shown in the figure, two switches use the default parameters to run STP root primary; Switch B uses the configuration command STP priority 0. Then which port will be blocked? () (Single-choice question)
Two authentication domains "Area1" are configured on a router acting as an authentication server And "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? ()
Which of the following statements are correct for the MAC address of the existing switch? ()
The Huawei tracert diagnostic attack is used to track the forwarding path of data ()
There is a WeB server in the private network that needs to provide HITP services to public network users. Therefore, the network administrator needs to configure NAT on the gateway router RTA.
When Huawei switches allow STP, the priority of the switch by default is ()
After link authentication is completed, STA. will continue to initiate link service negotiation. Which of the following messages will be used to achieve the specific negotiation? ()
The IPv4 address assigned by the network administrator to a host in the network is 192.168.128, how many more hosts can be added to the network where this host is located? ()
To provide different network services for different users on the AP, which of the following can be configured?
SNMPv1 defines five protocol operations. ()
Which of the following is not the reason why RSTP can increase the speed of convergence? ()
Which of the following fields is not included in the HELL0 packet of the OSPF protocol?
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()
The config mode is the default ACL matching order on Huawei devices. ()
When learning this switch needs to forward the frame with the destination MAC. The address is 5489-98ec-f011, the following description is correct ()
Which of the following statements about direct routing is correct? ()
By default, what is the RouterDeadInterval of the ospf protocol on the broadcast network? ()
In order for the STA to obtain the SSID related information on the AP, which of the following messages is used by the AP to proactively declare the wireless network SSID information? ()
For the description of the PPP link establishment process, the following statement is wrong ()
What kind of message does the OSPF protocol use to confirm the received LSU message? ()
In order for the STA to obtain the SSID related information on the AP, which of the following messages is used by the AP to proactively declare the wireless network SSID information?
Which of the following parameters is used in LCP negotiation to detect link loops and other abnormal conditions? ()
What is the port number used by the FTP protocol control plane? ()
FIT AP does not need AC. It can also work independently ()
The basic header length of IPv6 packets is a fixed value ()
The IP addresses of the VLANIF interfaces of the same switch cannot be the same. ()
A network engineer prompts the following message when entering the command line: Error: UnrecognizeD.commanD.founD.at '＾' position. Which of the prompt information is correct? ()
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? ()
In a Layer 2 network with redundant links, which of the following protocols can be used to avoid loops?
By default, on the broadcast networkOSPFWhat is the transmission period of the protocol HELLO message? ()
In IPv4 network, AP supports static and DHCP to obtain IP address ()
Which of the following is not included in the VRP system login method? ()
Which of the following commands can be used to view the CPU usage of the router? ()
When two OSPF routers form a 2TAY neighbor relationship, LSDB. has been synchronized.
If the Length/Type of an Ethernet data frame is 0x8100. Which of the following statements is correct?
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. ()
When the device running STP receives the RSTP configuration BPDU, it will discard it. ()
What is the value of the Type field in the RStp configuration BPDU message? ()
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? ()
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? ()
If the application layer protocol is Te1net, then the value of the Protoco1 field in the IPv4 header? ()
In the RSTP protocol, when the edge port receives the configuration BPDU message, it loses the edge port attribute. ()
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
Which version of the SNMP protocol below supports encryption features? ()
Which of the following interfaces are not open to Huawei controllers?
Which of the following descriptions about the switch is wrong? ()
What is the range of VLAN ID that users can use? ()
Which statement about OSPF area division is wrong? ( )
OSPF Router ID. It must be the same as the IP address of an interface on the router.
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.? ()
Which of the following commands can be used to check the session status of the PPPoE client? ()
Which of the following descriptions about firewalls is wrong? ()
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 log in to this device using telnetliB. ()
When two OSPF routers form a 2-WAY neighbor relationship, LSDB. has been synchronized. ()
Which of the following IPv4 addresses the host uses cannot directly access the Internet? ()
The following statement about static routing in Huawei equipment is wrong ().
When using the ping command on the VRp platform, if you need to specify a P address as the source address of the echo request message, which of the following parameters should be used? ()
On Huawei routers, what is the default value of the OSPF protocol internal routing priority? ()
Management Information Base (MIB) Information Base) is a virtual database, which only exists on the NMS. ()
What elements can NAPT convert? ()
The display startup information of the AR2200 router. Regarding these information, the statement is wrong ()
When two OSPF routers form a 2-WAY neighbor relationship, the LSDB. has been synchronized. ()
The TCP protocol uses the three-way handshake mechanism to establish and disable connections. Therefore, TCP supports reliable data transmission.
If Spanning Tree Protocol (STP) is disabled on the network consisting of switches, a Layer 2 loop will definitely occur.
In RSTP, an edge port becomes a common STP port after receiving a configuration BPDU.
As shown in the figure, which of the following ports will be in blocking state?
Which of the following IEEE 802.11 standards supports a theoretical negotiated rate of 5 Gbit/s or higher?
Which of the following descriptions regarding the TTL field of the IP packet is correct?
The tree topology is a hierarchical star topology, facilitating network expansion. A consequence of this topology is that faults on a node at a higher layer are more severe.
O: 25
In RSTP, a backup port can replace a faulty root port.
Which of the following statements is true about the Forward Delay timer of STP?
If the transport-layer protocol is UDP, the value of the "Protocol" field at the network layer is 6.
When the ACL in the following figure is configured on a Telnet server, only the device with an IP address of 172.16.105.2 can remotely log in to the Telnet server.
bash
Copy code
acl number 2000
rule 5 permit source 172.16.105.2 0
The network administrator performs the configuration shown in the following figure on RTA. If a user needs to be authenticated in the authentication domain named huawei, which of the following statements is true?
Which of the following port states are included in Rapid Spanning Tree Protocol (RSTP)?
When a host uses the stateless address autoconfiguration solution to obtain an IPv6 address, the host cannot obtain the DNS server address.
In the following figure, all links are Ethernet links, and all interfaces on the routers are running OSPF. Given this, how many DRs will be elected on this network?
When two switches are connected through link aggregation, what are the requirements for the interfaces on the two switches?
Which of the following fields are included in an MPLS header?
If the IPv4 address of a host on a LAN is 192.168.1.1/30, the host will process IP packets with specific destination IP addresses. Which of the following IP addresses may be the destination IP addresses?
Which of the following packets are exchanged between STAs and an AP to obtain the AP's SSID before association with the AP?
What function does Ctrl+Z have in the VRP system?
With SNMP, an NMS can only display the device running status but cannot deliver configurations.
Which of the following fields are contained in an ARP packet?
On the network shown in the figure, host A logs in to router A through Telnet and obtains the configuration file of router B through FTP on the remote CLI. How many TCP connections exist on router A?
How many bytes are there in a basic IPv6 header?
Which of the following is the default port number of the Telnet server?
Which of the following VRP commands can be used to enter area 0 view?
If a device running STP receives an RSTP configuration BPDU, it discards the BPDU.
Which of the following operations are mandatory to restore the factory default settings of an AR2200 router?
TION NO: 58
If the MAC address of an interface is 00E0-FCEF-0FEC, the corresponding EUI-64 address is ( ).
If Proto of a route displayed in the routing table is OSPF, the preference of the route must be 10.
According to the one-armed routing configurations shown in the figure, even if ARP proxy is disabled on the sub-interface of R1, the Administration Dept and Finance Dept can still communicate with each other.
UDP does not guarantee data transmission reliability and does not provide packet sorting and traffic control functions. It is suitable for the traffic that has low requirements for data transmission reliability, but high requirements for the transmission speed and delay.
Assuming all STP enabled switches have the same bridge priority. The MAC address of switch A is 00-e0-fc-00-00-40, the MAC address of switch B is 00-e0-fc-00-00-10, the MAC address of switch C is 00-e0-fc-00-00-20, and the MAC address of switch D is 00-e0-fc-00-00-80. Which switch will be elected as the root switch?
Which of the following information is displayed when an entered command is incomplete on the Versatile Routing Platform (VRP)?
A router in the backbone area has complete LSDBs of routers in other areas.
Which of the following is not a characteristic of small campus networks?
After the administrator performs the configuration shown in the figure on a router, which of the following commands can be used to specify a short lease for addresses assigned using DHCP?
In a broadcast address, all host bits are set to 1, and a broadcast address can be used as a host address.
It is advised to assign static IP addresses to servers during campus network planning.
Which of the following parameters is used to elect the root bridge in STP?
The router that runs OSPF first enters the Full state and then synchronizes the LSDB.
Which of the following statements is true about root bridge election in STP?
Which of the following are valid static route configurations?
Which of the following statements are true about transport-layer protocols?
Which of the following statements regarding static routing and dynamic routing is incorrect?
As shown in the figure, RTA uses NAT and has an address pool configured to implement many-to-many non-NAPT address translation, so that hosts on the private network can access the public network. Assume that the address pool has only two public IP addresses, which are translated for Host A and Host B. If Host C wants to access the public network, which of the following statements is true?
Which of the following packets are OSPF packets?
When a switch receives a unicast data frame, if the destination MAC address of the data frame can be found in the MAC address table of the switch, the data frame is definitely forwarded through the port corresponding to the MAC address.
What is the length range of an Ethernet_II frame that contains an Ethernet header?
As shown in the figure, if host A has the ARP cache of host B, host A can ping host B.
What is the main function of the DNS protocol?
On a Layer 2 WLAN, STAs use an AC as their gateway.
Which statement is true regarding the following command?
ip route-static 10.0.12.0 255.255.255.0 192.168.1.1
Refer to the following configuration of a switch interface. Which of the following statements is false?
interface GigabitEthernet0/0/1
port link-type trunk
port trunk pvid vlan 200
port trunk allow-pass vlan 100
After a switch restarts, static MAC address entries saved on the switch remain in the MAC address table.
Which of the following is correct regarding the configuration of the trunk port and access port on a switch?
Assuming that OSPF has been enabled on all routers in the following figure, which router is the BDR on this network?
Which of the following is the default value of the Router Dead Interval field in OSPF Hello packets on a broadcast network?
SNMP packets are transmitted by UDP.
An ACL is essentially a packet filter. An ACL takes effect only after it is applied to a service module.
< Huawei > system-view
[Huawei]command-privilege level 3 view user save
Refer to the command output. What is the result of the shown command?
The LACP mode of link aggregation uses LACPDU to elect the active end. What information in LACPDU is the basis for electing the active end of LACP? ()*
The function of the 0SPF hel1o message is ()
Which of the following are related to the purpose of encapsulation and decapsulation? ()*
When OSPF protocol establishes adjacency, which of the following parameters must be consistent?*
As shown in the figure below, are the following statements correct? () (Multiple Choice Questions)
The output information of the sub-interface of a router aggregate port 1 is shown in the figure. Based on this information, which of the following statements are correct? ()
Which of the following message types does DHCP contain?
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? ()*
With what kind of routers does a DRother router exchange link state information and route information?
On the VRP, when the mkdir test command is run, the system creates a directory named test.
When a switch port receives a frame that does not carry a VLAN tag, it must add a PVID to the frame.
Which of the following options describes the concept of NFV architecture correct?
As shown in the figure, after the two routers are configured with 0SPF, the administrator configures the
The output information of a certain router is shown in the figure. Which of the following statements are correct? () (Multiple Choice Questions)
When the LCP phase of PPP is negotiated, the content of the negotiation includes ()*
In order to detect the connectivity status of the CAPWAP tunnel, after the CAPWAP tunnel is established, which of the following CAPTAP messages is used by the AC for detection? ()*
As shown in the figure, router A has successfully telneted to router B using 10.0.12.2. Which of the following operations will interrupt the Telnet session between router A and router B?
Which of the following types does IPv6 address include? ()*
Which authorization modes are supported by AAA on Huawei ARG3 series routers? ()*
Which of the following features does the default VLAN in the Layer 2 Ethernet switch have? ()*
If the IP address of a host in the LAN is 192.168.1.1/30, which of the following IP addresses will be processed by the host as the destination address of the IP packet? ()*
The priority of static routes cannot be manually specified.
The network shown in the figure below. The host has an ARP cache. Which of the following statements are correct? )(Multiple Choice Questions)
Refer to the display startup command output shown in the figure. Which of the following statements are true?
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
What are the advantages of the OSPF protocol? ()*
As shown in the figure, which of the following ports will be in a blocking state?
Which of the following statements about IPv6 anycast addresses are correct? ()*
Fit APs can work independently of an AC.
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 statements about the various versions of the SNMP protocol are correct?
After the two routers are configured with 0SPF, the administrator configures the command on RTA. The following description is correct ()
An ACL rule is as follows. Which of the following IP addresses can be matched by the permit rule?
rule 5 permit ip source 10.0.2.0 0.0.254.255
The router ID of the OSPF process takes effect immediately after being changed.
Which frequencies does IEEE802.11n support? ()
In an OSPF broadcast network, with which routers does a Dothter router exchange link state information? ( )
Which of the following MAC addresses cannot be used as the MAC address of host network adapters?
The routing table is generated by ()*
Which of the following statements about the output on the router R1 shown in the figure is false?
DHCP is called Dynamic Host Configuration Protocol. It mainly assigns IP addresses and DNS information to hosts automatically. The messages used are ()
How to add AP on AC.? ()*
Refer to the graphic, after the ping 10.1.1.2 command is executed on R1, LSW1 receives a tagged data frame from VLAN 10 on LSW2.
The following figure shows the configuration of a sub-interface on a router. For which VLAN does the sub-interface receive tagged data frames?
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?
Which of the following methods can be used to add APs on an AC?
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? ()
An authenticator router has been configured with two domains named "Area1" and "Area2", following which a user is created with the username "huawei" and the password "hello" for authentication. Which domain does this user belong to?
The following description of the Forwarding status in the spanning tree protocol is wrong (). ()*
Which of the following is the full name of VRP?
For STP, the default root path cost of the root bridge is 0.
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?*
As shown in the figure below. Router A has passed the IP address 10.0.12.2 Telnet Router B. Which of the following operations on the current interface will cause the Telnet session between Router A and Router B to be interrupted? () (Multiple Choice Questions)
When an Ethernet frame is received by an interface on a Layer 2 Ethernet switch, which field is used to generate an entry in the MAC address table?
The output information of a certain router is shown in the figure. Which of the following statements are correct? () (Multiple Choice Questions)
Which of the following IEEE802.11 standards support operation in the 5GHz frequency band? ()
Regarding the IPv6 address 2031:0000:720C:0000:0000:09E0:839A:130B, which of the following abbreviations are correct? ()
What is the MAC address of the data link layer of each VAP on the AP? ()
IPCP dynamic address negotiation can automatically obtain the address()
In order to join the wireless network $TA. The wireless network information needs to be obtained first. Which of the following messages is used by the STA to actively obtain the SSID information? ()
What kind of message does the DHCP server use to confirm that the host can use the IP address? ()
In a Layer 2 network with redundant links, which of the following protocols can be used to avoid loops? ()
The router running the OSPF protocol reaches the FULL state first, and then synchronizes the LSDB. ()
IP route--statiC.10.0.12.0255.255.255.0192.168.1.1 About this command description is correct ()
OSThe I reference model from high-level to bottom-level is ()
On the broadcast network, both DR and BDR use the multicast address 224.0.0.6 to receive link state update messages ()
The switch becomes a logical switch after stacking and clustering, and Eth-Trunk across physical devices can be deployed to improve network reliability. ()
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 following statement about Python is incorrect ()
When using the FTP protocol to upgrade the router software, the transmission mode should be selected ()
The following statement about the TTL field in the IP packet header is correct. ()
The priority of OSPF routing protocol is ()
On the VRP operating platform, what command is used to display the current interface configuration in the interface view? ()
When using FTP for file transfer, how many TCP connections will be established? ()
There is no need to write a hop when writing static routes at both ends of the PPP link. The Ethernet link needs
There are multiple route entries to the same destination network in the routing table. These routes are called? ()
FTP transfer data at a time requires several TCP connections to be established
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 following description about the specified port of the spanning tree is correct ()·
Static NAT can only achieve one-to-one mapping between private addresses and public addresses ()
On the VRP platform, which of the following methods can be used to access previous historical commands? ()
DHCP is an application layer protocol. In order to make it more reliable when assigning P, its transport layer uses TCP protocol.
Which of the following information prompts is used by the VRP operating platform for incomplete input commands? ()
All four switches run STP, and various parameters adopt default values. If the G0/0/2 port of switch C is blocked and the configuration BPDU cannot be sent through this port, how long will the blocked port in the network enter the forwarding state ()
The Backup port in RSTP can replace the failed root port ()
The second layer switch belongs to the data link layer device, which can identify the MAC address information in the data frame, forward data according to the MAC address, and record these MAC addresses and corresponding port information in its own MAC address table. ()
How many types of data flows with different service levels can be marked based on MPLS labels? ()
Which of the following protocols does the RA. message used by IPv6 stateless autoconfiguration belong to? ()
Which of the following statements about link aggregation are correct? ()
NAPT distinguishes the IP addresses of different users through the protocol numbers in TCP, UDP, or IP packets ()
The role of the OSPF protocol is
Use the command kdir test in the VRP operating platform. The system will create a directory named test.
192.168.1.127/25 represents () address ()
When the host frequently moves, which VLAN division method is most appropriate? ()
Trunk ports can allow multiple VLANs to pass, including VLAN4096. ()
On Huawei switches, you can use the vlan batch command to create multiple VLANs in batches, simplifying the configuration process. ()
Take effect immediately after the Router ID of the OSPF process is modified ()
The Management Information Base (MIB) (Management Information Base) is a virtual database that only exists on the NMS. ()
What is the full name of the general routing platform VRP? ()
The two ends of the PPP link are not in the same network segment and cannot communicate
Which of the following IPv4 addresses can be used by a host to directly access the Internet? ()
The HybriD. port can be connected to the user host or other switches. ()
If the value of the ypeLength field of an Ethernet data frame is 0x0800, the length of the upper layer message header carried by this data frame is in the range of 20-60B. ()
Layer 2 ACL can match source MAC, destination MAC, source IP, destination IP and other information. ()
Which field of the ipv6 packet header can be used for QoS? ()
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 ()
What is the total length of the VLAN frame format defined by IEEE802.1Q? ()
Which layer of protocol does ARP belong to
Which of the following descriptions of wireless devices is correct? ()
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. ()
The device port running the STP protocol is in the Forwarding state. Which of the following statements are correct? ()
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 ()
Which of the following statements about VLANIF interfaces are correct? ()
After FIT AP obtains AC.'s IP address, what is the first operation to perform? ()
