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 is the corresponding Solicited.-node multicast address for IPv6 iAilt2019::8:AB.? ()
As shown in the figure, the switch runs STP with default parameters. Which of the following ports will be elected as the designated port? () (Single-choice question)
What identifies the coverage area of an AP in a WLAN? ()
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
The network structure and OSPF partition are shown in the figure. Except for RTA in the figure, the routers RTB, RTC and RTD are all ABR routers. ()(True or False)
Which of the following 0SPF protocol packets can ensure the reliability of LSA update? ()
Ethernet_I containing the Ethernet headerIWhat is the length of the frame? ()
Which of the following IEEE802.11 standards does not support communication in the 5GHz frequency band? ()
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 picture. About OSPF topology and configuration. Which of the following statements is correct? () (Single-choice question)
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 network is shown in the figure. Which router is the BDR in this network? () (Single-choice question)
As shown in the figure, the network administrator creates VLAN2 on SWA and SWB. The ports connecting the hosts on the two switches are configured as Access ports. They are assigned to VLAN2. G0/0/1 of SWA and G0/0/2 of SWB are configured as Trunki ports. All VLANs are allowed to pass. What is needed to achieve normal communication between two hosts? () (Single-choice question)
Regarding the corresponding relationship between the access control list number and type, the following description is correct ()
Which statement about the 0SPF protocol DR is correct? ()
Use the ACL shown in the figure on the router RTA to match routing entries. Then which of the following entries will be matched?
(RTA) acl 2002
(RTA-acl-basic-2002) rule deny source 172.16.1.1 0.0.0.0
(RTA-acl-basic-2002) rule deny source 172.16.0.0 0.255.0.0
In the network shown in the figure below, when the 0$PF neighbor status is stable. What is the neighbor status of Router B and Router C?
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? ()
As shown in the figure, is the description of this network topology correct? () (Single-choice question)
Which stage in the life cycle of campus network construction is the beginning of a project? ()
The MAC address table of existing switches is shown in the figure. Which of the following statements are correct? () (Single-choice question)
Which of the following statements about Prefix Segment is wrong? ()
You can manually specify the source address or source interface of the CAPWAP tunnel on the AC. ()
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? ()
By default, network devices running the SNMPv2C. protocol use which of the following port numbers to send trap messages to the network management system? ()
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)
Which of the following are related to the purpose of encapsulation and decapsulation? ()
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)
Which of the following parameters cannot be used for advanced access control lists? ()
When the IPv4 protocol is used as the network layer protocol, which field is not included in the network layer header? ()
AAA. Which of the following is not included? ()
Which category does the IPv6 address FE80:2E0:FCFF:FE6F:4F36 belong to? ()
Which of the following IEEE802.11 standards only supports the 2.4GHz frequency band for communication? ()
The Layer 2 Ethernet switch generates entries in the MAC address table according to the () of the Ethernet frame received by the port. ()
Which of the following statements are correct for the MAC address of the existing switch? ()
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. ()
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)
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. ()
When using the ping command on the VRp platform, if you need to specify an IP address as the source address of the echo request message, which of the following parameters should be used? ()
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)
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 ()
Two switches use manual link aggregation at the same time. The following statement is wrong. () (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 MPLS label header is encapsulated between the data link layer header and the network layer header of the message. ()
As shown in the figure. When the router uses the 0＄PF protocol at the same time. Which BDR is in this network? () (Single-choice question)
The number of VLANs that can be created using the commands "vlan batch1020 and "vlan batch10to20" respectively is ()
In the figure below, all switches have enabled the STP protocol, assuming that the path cost value of all ports is 200. What is the root path cost value contained in the configuration BPDU message received by the G0/0/4 port of $WD? () (Single-choice question)
The two switches shown in the figure below have both enabled the STP protocol. Which port will eventually be in the Blocking state? ()
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)
UDP cannot guarantee the reliability of data transmission, and does not provide the functions of message sequencing and flow control. It is suitable for flows with low transmission reliability requirements but high transmission speed and delay requirements. ()
Using the command mkdirtest in the VRP operating platform, the system will create a directory named test. ()
In the OSPF protocol, which of the following descriptions of DR is correct? ()
Which of the following IEEE802.11 standards does not support the 5GHz frequency band for communication? ()
The administrator has configured 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)
As shown in the figure below, which of the following statements is correct? () (Single-choice question)
The configuration information of a certain port of the switch is shown in the figure. Which of the following statements is wrong? () (Single-choice question)
Which of the following statements are true about the dynamic MAC address table?
Which of the following network parameters can be assigned by Dynamic Host Configuration Protocol DHCP? ()*
The output information of a certain switch is shown in the figure. Which of the following statements is correct? () (Multiple Choice Questions)
How to add AP on AC.? ()*
After switches are virtualized into one logical switch using stacking or CSS, an inter-chassis Eth-Trunk can be deployed to improve network reliability.
If the Ethernet data frame Length/Type=0X0806, which statement is correct ()*
Which fields in the IPv4 header are related to fragmentation? ()*
Which of the following methods is not used for logging in to the VRP system?
Fit APs can work independently of an AC.
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 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?*
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? ()
Refer to the following configuration of an interface on a switch. What is the PVID of the interface?
interface GigabitEthernet0/0/1
port hybrid tagged vlan 2 to 3 100
port hybrid untagged vlan 4 6
Which of the following parameters is not contained in STP configuration BPDUs?
If the network administrator assigns the IPv4 address 192.168.1.1/28 to a host on the network, how many hosts can be added to the network where the host resides?
When an AP and an AC are located on different Layer 3 networks, which of the following methods is recommended for the AP when discovering the AC?
DHCP is called Dynamic Host Configuration Protocol. It mainly assigns IP addresses and DNS information to hosts automatically. The messages used are ()
Which of the following working modes are supported by Huawei enterprise APs? ()*
Which authorization modes are supported by AAA on Huawei ARG3 series routers? ()*
The routing table is generated by*
What is the protocol of the Router Advertisement (RA) packet, which is used in IPv6 stateless address auto-configuration?
telnetlib is a module provided by Python to implement the Telnet protocol.
Which of the following WLAN security policies support open link authentication?
What are the advantages of using DHCP to allocate IP addresses?
What are the stable states of OSPF neighbor relationship? ()*
The output information of a certain router is shown in the figure. Which of the following statements are correct? () (Multiple Choice Questions)
Refer to the following configuration of an interface on a switch. For which VLAN does the interface transmit tagged data frames?
interface GigabitEthernet0/0/1
port hybrid tagged vlan 2 to 3 100
port hybrid untagged vlan 4 6
What is used as the data link-layer MAC address that identifies each VAP on an AP?
The following figure shows the configuration of a sub-interface on a router. For which VLAN does the sub-interface receive tagged data frames?
What are the components of the OSI reference model from top to bottom?
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)
Which of the configurations in the following options belong to a Layer 2 ACL? ()*
In the case of Huawei routers, what is the "-i" parameter in a Ping command issued on a VRP operating system used to set?
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
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 features does the OSPF protocol have? ()*
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? ()
Virtualization is the basis for implementing NEV. Which of the following statements about the characteristics of virtualization is correct? ()*
What command line views exist on the VRP operating platform? ()*
Which NAT can convert multiple private network addresses into one public network address to access the public network at the same time
In RSTP, an edge port becomes a common STP port after receiving a configuration BPDU.
On Huawei ARG3 series routers, what authentication modes does AAA. support? ()
As shown in the figure, the host has ARP cache. Host A sends a data packet to host B. Which of the following are the destination MAC address and destination IP address of the data packet?
For STP, the Message Age in the configuration BPDUs sent by the root bridge is 0.
When a switch port receives a frame that does not carry a VLAN tag, it must add a PVID to the frame.
After OSPF is configured on the two routers, the administrator configures commands on RTA. Which of the following descriptions is correct? ()
VLANs can be assigned based on service types during campus network planning.
Which of the following descriptions about OSPF's DD. packets and LSA. is correct ()*
ip route-static.10.0.2.2255.255.255.25510.0.12.2 preference20, the correct statement about this command is ()
The authentication, authorization, and accounting schemes and HWTACACS or RADIUS server templates created on AR routers take effect only after being applied to a domain.
What are the functions of OSPF protocol DR and BDR?
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? ()*
The output information of the routing table of a certain router 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
What are the advantages of OSPF?
The output information of a certain device is shown in the figure. Which of the following statements are correct? () (Multiple Choice Questions)
Is there any correct statement about the TTL field in the IPv4 header? ()
On VRP, the command lines are classified into four levels in increasing priority: Visit level, Monitoring level, Configuration level, and Management level. At which level, the operator is permitted to configure service but is not permitted to operate the file system?
The output information of a certain device is shown in the figure. Which of the following statements is correct? ( )
display interface G1gabitEthernet 0/0/0 G1 gabi tEthernet0/0/0 currentstate UP Line protocol current state UP Route Port，The Maximum Transmit Unit is 1000 Internet Address is 10.0.12.2/24 IP Sending Frames'Format is PRTFMT ETENT 2.Hardware address is 00e0-fc22-4fff Port Mode:FORCE COPPER SpeeD.:100, Loopback:NONE Duplex:FULL, Negotiation:DISABLE Md1 AUTO Last 300 seconds input rate 24 bits/seC.0 packets/sec Last 300 seconds output rate 24 bits /seC.0 packets/seC.*
When the host frequently moves the office, which VLAN division method is most suitable? ()
Which of the following statements about Python is incorrect?
OSPF Router ID. It must be the same as the IP address of an interface on the router.
According to the command output as shown in the figure, which of the following descriptions is correct? () (Multiple Choice Questions)
SNMPv1 defines five protocol operations. ()
All interfaces of routers running 0SPF protocol must belong to the same area. ()
Which of the following IPv6 addresses is a multicast address? ()
By default, what is the RouterDeadInterval of the ospf protocol on the broadcast network? ()
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 ()
On Huawei routers, what is the default value of the OSPF protocol internal routing priority? ()
The change of the Router ID of the OSPF process takes effect immediately.
The IPv6 address 2001: ABEF:224E:FFE2:BCC0:CD00:DDBE:8D58 cannot be abbreviated. ()
UDP is oriented to connectionless and must rely on () to ensure the reliability of transmission. ()
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?
In IPv4 network, AP supports static and DHCP to obtain IP address ()
Switch stacking supports more than two devices, and multiple switches can be grouped into a logical device through stacking. ()
The Layer 2 networking of WLAN refers to STA. It uses AC as its own gateway. ()
VLAN4095 cannot be created on Huawei switches, and VLAN1 cannot be deleted. ()
Which of the following statements about Adjacency Segment is wrong? ()
The following statement about static routing in Huawei equipment is wrong ().
The configuration information of a certain port of the switch is shown in the figure. Then, when the data frame of which VLAN is sent by this port, it carries the VLAN TAG? ()interface GigabitEtherneto/0/1 port hybriD.taggeD.vlan 2 to 3 100 port hybriD. untaggeD. vlan 4 6#
When a switch receives a unicast data frame with a VLAN tag, but finds that the destination MAC address of the data frame cannot be queried in its MAC address table, the switch's processing behavior for the data frame is ().
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 ().
For the description of the PPP link establishment process, the following statement is wrong ()
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.
Broadcast network. OSPF runs on four routers in the same area. Same network segment. OSPF will automatically elect one DR and multiple BDRs to achieve better backup results
What is the port number used by the FTP protocol control plane? ()
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 following figure shows the routing table of a router. When the router receives a data packet with a destination IP address of 9.LL, the router will forward it according to the route of 91.0.016 because the mask length of this route is longer. ()
By default, what is the lease period for the DHCP server to assign an IP address? ()
Does the WEP security policy support the use of TKIP for data encryption?
When two OSPF routers form a 2TAY neighbor relationship, LSDB. has been synchronized.
The mask length is 12 bits can be expressed as?
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 ().
Which of the following routing protocols has the highest priority?
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? ()
What is the number range of advanced ACLs? ()
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? ()
The DHCPv6 server supports the provision of other configuration information such as DNS server addresses for the host.
FIT AP does not need AC. It can also work independently ()
The administrator plans to implement route backup by configuring static floating routes. The correct way to achieve this is ()
The static MAC. address table will not be lost after the system restarts ()
Which of the following descriptions about Trunk port and Access port are correct ()
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. ()
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()
Which of the following is not the reason why RSTP can increase the speed of convergence? ()
The administrator wants to configure the P address on the G0/0/0 interface of the router. Which of the following addresses is correct?
What elements can NAPT convert? ()
Which of the following IPv6 addresses can be abbreviated as 2FFF DAC:ABEF:CDAA:732? ()
In standard STP mode, which of the following non-root switches will forward the C-set BPDU generated by the root switch? ()
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 statements is correct? ()
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. ()
The config mode is the default ACL matching order on Huawei devices. ()
Which of the following address types does IPV6 have?
The DHCPv6 server supports the provision of other configuration information such as DNS server addresses for the host. ()
To provide the information about the IP addresses that a user packet traverses along the path to the destination, which of the following does Tracert record in each expired ICMP TTL packet?
What is used as the data link-layer MAC address that identifies each VAP on an AP?
TION NO: 58
If the MAC address of an interface is 00E0-FCEF-0FEC, the corresponding EUI-64 address is ( ).
In RSTP mode, both alternate and backup ports cannot forward user traffic and cannot receive, process, and send BPDU.
TION NO: 29
For an Eth-Trunk in LACP mode, what is the default LACP system priority of a Huawei switch?
With SNMP, an NMS can only display the device running status but cannot deliver configurations.
In a broadcast address, all host bits are set to 1, and a broadcast address can be used as a host address.
Which of the following statements about the routing table shown in the figure are true?
The rules in an ACL may overlap. If packets match the rules with loose conditions, the later ACL rules are not processed. In this case, packets cannot match the rules with strict conditions. Therefore, the rules with strict conditions must be arranged in front lines and those with loose conditions must be arranged towards the end.
If a device running STP receives an RSTP configuration BPDU, it discards the BPDU.
If Proto of a route displayed in the routing table is OSPF, the preference of the route must be 10.
Only one SSID can be bound to each radio of an AP.
Which of the following fields are contained in an ARP packet?
For the Versatile Routing Platform (VRP), the login timeout period can be set only on a VTY interface.
The router that runs OSPF first enters the Full state and then synchronizes the LSDB.
Which of the following packets are exchanged between STAs and an AP to obtain the AP's SSID before association with the AP?
As shown in the figure, which of the following ports will be in blocking state?
When two switches are connected through link aggregation, what are the requirements for the interfaces on the two switches?
O: 25
In RSTP, a backup port can replace a faulty root port.
What function does Ctrl+Z have in the VRP system?
Which of the following port states are included in Rapid Spanning Tree Protocol (RSTP)?
A Layer 2 switch works at the data link layer. As such, it can identify MAC addresses in data frames, forward data based on MAC addresses, and record mappings between MAC addresses and interface numbers in its MAC address table.
On a Layer 2 WLAN, STAs use an AC as their gateway.
telnetlib is a module provided by Python to implement the Telnet protocol.
As shown in the figure, if host A has the ARP cache of host B, host A can ping host B.
Which of the following is not a characteristic of small campus networks?
Which of the following statements about switches is false?
If Spanning Tree Protocol (STP) is disabled on the network consisting of switches, a Layer 2 loop will definitely occur.
If the transport-layer protocol is UDP, the value of the "Protocol" field at the network layer is 6.
On an STP-enabled switch, a port in the Learning state can transition to the Forwarding state only after the Forward Delay timer expires.
On the VRP platform, which of the following parameters can be used together with the "ping" command to specify the source address of an echo request message?
Which of the following is the default port number of the Telnet server?
Which of the following commands is used to configure the country code on an AC?
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.
Which of the following statements is true about root bridge election in STP?
Which of the following packets are OSPF packets?
In RSTP, an edge port becomes a common STP port after receiving a configuration BPDU.
Which of the following statements is true about link aggregation in manual load balancing mode?
Which of the following states indicates that the OSPF neighbor relationship has been established?
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 statements are true about transport-layer protocols?
After a switch restarts, static MAC address entries saved on the switch remain in the MAC address table.
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?
A Layer 2 ACL can match information such as the source MAC address, destination MAC address, source IP address, and destination IP address.
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?
On the Huawei VRP, what is the default preference of different route types, in descending order?
After an Eth-Trunk in LACP mode is created, devices on both ends send LACPDUs to elect the Actor. Which of the following parameters in LACPDUs determine the Actor election?
Refer to the graphic, 00e0-fc99-9999 is a specific host MAC address learned by a switch through ARP, and the host changes the IP address three times.
Which of the following statements about the network shown in the figure is true?
When a host uses the stateless address autoconfiguration solution to obtain an IPv6 address, the host cannot obtain the DNS server address.
The IP address 192.168.1.127/25 represents a ( ) address.
What is the length range of an Ethernet_II frame that contains an Ethernet header?
The TCP protocol uses the three-way handshake mechanism to establish and disable connections. Therefore, TCP supports reliable data transmission.
Which of the following statements regarding static routing and dynamic routing is incorrect?
Which of the following VRP commands can be used to enter area 0 view?
Which of the following is correct regarding the configuration of the trunk port and access port on a switch?
Network devices running SNMP can proactively report traps to help network administrators detect faults in a timely manner.
Basic ACL number value range ().
Which of the following IPv4 addresses can be used by a host to directly access the Internet? ()
Which of the following OSCan PF protocol packets ensure the reliability of LSA update? ()
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. ()
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? ()
Which of the following statements about the role of the STP protocol ForwarD.Delay is correct? ()
Which of the following statements about VLANIF interfaces are correct? ()
Among the following commands for configuring the default route, the correct one is ()
On Huawei ARG3 routers, the -i parameter of the Ping command in VRP is used to set ().
When planning a campus network, which of the following methods can be used to divide service VLANs? ()
NAPT distinguishes the IP addresses of different users through the protocol numbers in TCP, UDP, or IP packets ()
What is the full name of the general routing platform VRP? ()
If the network address of a network is 192.168.1.0, then its broadcast address must be 192.168.1.255. ()
If the broadcast address of a network is 172.16.1.255, then its network address may be ().
In what state does the OSPF protocol determine the master-slave relationship of DD. packets? ()
The VlanIF IP addresses of the same switch cannot be the same. ()
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? ()
UDP is connectionless and must rely on () to ensure the reliability of transmission.
VRP operating system commands are divided into four levels: access level, monitoring level, configuration level, and management level. Which level can run various business configuration commands but cannot operate the file system? ()
If the Proto of a certain route information in the routing table is OSPF, the priority of this route must be 10. ()
The transport layer protocol has UDP and TCP, but UDP is more reliable than TCP
192.168.1.127/25 represents () address ()
Static NAT can only achieve one-to-one mapping between private addresses and public addresses ()
Which of the following statements about single-arm routing are correct? ()
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 ()
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? ()
In the VRP interface, use the command delete vrpcfg.zip to delete a file. The file must be emptied in the recycle bin to completely delete the file. ()
After FIT AP obtains AC.'s IP address, what is the first operation to perform? ()
The tracert diagnostic tool in Huawei routers is used to track the data forwarding path. ()
Which of the following parameters is not included in the configuration BPDU of the STP protocol? ()
There is no need to write a hop when writing static routes at both ends of the PPP link. The Ethernet link needs
The configuration of the country code will affect the actual frequency used for transmission and the maximum transmission power ()
If the largest number in an ACL rule is 12, by default, the user does not specify a number when configuring a new rule, then the number assigned to the new rule by the system is? ()
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 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 the RSTP standard, in order to improve the convergence speed, the port that the switch is directly connected to the terminal can be defined as ()
By default, the port cost calculated by STP has a certain relationship with the port bandwidth, that is, the larger the bandwidth, the higher the cost ()
On Huawei switches, you can use the vlan batch command to create multiple VLANs in batches, simplifying the configuration process. ()
When using FTP for file transfer, how many TCP connections will be established? ()
Which of the following packet types is used by RADIUS to indicate authentication rejection? ()
Which of the following does not include the advantages of Wi-Fi6 compared to Wi-Fi5? ()
In which working state of the port in the STP protocol can it be changed to the Forwarding state without going through other states? ()
What is the total length of the VLAN frame format defined by IEEE802.1Q? ()
A company applies for a C. 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. The subnet mask should be designed as ( )
When the IPv4 protocol is used as the network layer protocol, which field is not included in the network layer header? ()
Network devices running the SNMP protocol run an agent process locally. ()
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 ().
A certain ACL of the router is in the following rules, rule deny source192.168.2.00.0.0.255 destination 172.16.10.20.0.0.0 Which of the following statements is correct? ()
Telnet.read in TelnetliB._The role of all() is to read all data until EOF. If the echo does not return EOF, it will always block ()
How many types of data flows with different service levels can be marked based on MPLS labels? ()
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. ()
Which of the following statements is correct for the ACL configured in the Telnet application? ()
The role of the OSPF protocol is
Trunk ports can allow multiple VLANs to pass, including VLAN4096. ()
How many more bytes are the packets using MPLS label double-layer nesting technology than the original IP packets ()
PPPoE sessions can only use CHAP authentication ()
Telnet is based on TCP protocol ()
Which of the following advantages does the single-arm routing approach achieve inter-VLAN routing and intercommunication? ()