HCIA-Datacom V1.0 Exam Questions and Answers
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?
In an OSPF broadcast network, with which routers does a Dothter router exchange link state information? ( )
Which of the following port statuses may exist on an STP-enabled switch?
Refer to the graphic, which of the following statements is true about OSPF topology and configuration?
Which of the following working modes are supported by Huawei enterprise APs? ()*
Which of the following parameters need to be considered when electing a root port in STP? ()*
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*
In STP, which of the following items may affect the selection of the root switch?
On the switch, which VLANs can be deleted by using the undo command? ()*
NAT configuration is as follows, which IP can be converted when accessing the public network (RTA) acl2000 (RTA-acl-basic-2000) rule5 permit source 192.168.1.00.0.0.255 RTA-acl-basic-2000) rule 10 permit source 192.168. 2.0 0.0.0.255 RTA-acl-basic-2000)quit RTA)interface serial1/0/0
(RTA-Serial1/0/0 )nat outbound 2000 address-group1 no-pat *
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?
Which of the following MAC addresses cannot be used as the MAC address of host network adapters?
Which of the following features does the OSPF protocol have? ()*
< Huawei > system-view
[Huawei]command-privilege level 3 view user save
Refer to the command output. What is the result of the shown command?
Wi-Fi 6 is also known as the IEEE 802.11ax standard.
After switches are virtualized into one logical switch using stacking or CSS, an inter-chassis Eth-Trunk can be deployed to improve network reliability.
What are the ACL classifications*
Which of the following statements about encapsulation and decapsulation are true?
Which of the following features does the OSPF protocol have? ()*
The users who log on the router through Telnet are not permitted to configure an IP address. What is the possible reason?
On Huawei ARG3 series routers, what authentication modes does AAA. support? ()
Which statement about the dynamic AC. address table is correct?
Which of the following applications is based on the TCP protocol?()*
The network as shown in the figure. Which of the following configurations can realize that Host A cannot access the HTTP service of Host B. Host B cannot access the FTP service of Host A? () (Multiple Choice Questions)
The administrator cannot log in to the Huawei router through Telnett, but other administrators can log in normally, so which of the following are the possible reasons? ()*
Which of the following statements about the various versions of the SNMP protocol are correct?
Which of the following networks are LANs?
Which of the following refers to network communication? ()*
The router ID of the OSPF process takes effect immediately after being changed.
Which of the following statements about hybrid interfaces is true?
Dynamic routing protocols can automatically adapt to network topology changes.
In the STP protocol, which of the following factors will affect the election of the root switch? ()*
telnetlib is a module provided by Python to implement the Telnet protocol.
If the application-layer protocol is Telnet, what is the value of the "Protocol" field in the IPv4 header?
What are the advantages of OSPF?
Network Address and Port Translation (NAPT) allows multiple private IP addresses to be mapped to the same public IP address through different port numbers. Which of the following statements about port numbers in NAPT is true?
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? ()
In STP, the bridge ID on the switching network is as follows. With which of the following bridge IDs is the switch selected as the root bridge?
If AAA authentication is used on Huawei devices and the remote server does not respond, the authentication can be performed on network devices.
From a security perspective, router A refuses to receive OSPF packets. ICMP packets received from the cO/0/1 interface. Which of the following commands can achieve this requirement? ()
The following figure shows the configuration of a sub-interface on a router. For which VLAN does the sub-interface receive tagged data frames?
Which of the following port numbers is used by the FTP control plane?
Refer to the following display vlan command output on SWA. Which of the following interfaces can forward untagged data frames from VLAN 40?
The router ID of the OSPF-enabled router must be the same as the IP address of an interface on the router.
The country code configuration affects the actual transmission frequency and maximum transmission power.
What are the components of the OSI reference model from top to bottom?
Which of the following statements are true about the dynamic MAC address table?
As shown in the figure, after the two routers are configured with 0SPF, the administrator configures the
Which of the following IP addresses can be used by another host to communicate with the host whose IP address is 200.200.200.201/30 without the need to forward traffic through a router?
Link aggregation is a common technology in enterprise networks. Which of the following descriptions are the advantages of link aggregation technology? ()*
Which of the following is the full name of VRP?
The routing table is shown in the figure. Which of the following statements is correct? () (Multiple Choice Questions)
As shown in the figure, which of the following ports will be in a blocking state?
A routing entry contains multiple fields. Which of the following statements about these fields is false?
Which extension headers are supported by IPv6 packets?() *
On the network shown in the following figure, assuming that SWA, SWB, and SWC retain factory defaults, which of the following ports will be selected as a designated port?
Which of the following commands sets the data forwarding mode on an AC to direct forwarding?
Which of the following statements about the election of DR and BDR are correct? ()*
Which of the following MAC addresses cannot be used as the MAC address of the host network card? ()*
After OSPF is configured on the two routers, the administrator configures commands on RTA. Which of the following descriptions is correct? ()
The link aggregation interface can only be used as a Layer 2 interface (C)
Which of the following messages does the AP use to request the software version from AC.? ()
Which of the following IPv6 addresses can be abbreviated as 2FFF DAC:ABEF:CDAA:732? ()
Which of the following descriptions about firewalls is wrong? ()
What kind of packets does the OSPF protocol use to request LSAs that are missing locally? ()
All ports on the root bridge switch are designated ports. ()
When the FIT AP goes online, the software version will be downloaded from AC.
What is RouterDeadInterval of the OSPF protocol on the broadcast network by default? ()
Which of the following statements about Adjacency Segment is wrong? ()
Switch stacking supports more than two devices, and multiple switches can be grouped into a logical device through stacking. ()
When two OSPF routers form a 2-WAY neighbor relationship, LSDB. has been synchronized. ()
Which of the following is not included in the VRP system login method? ()
What kind of packets does the OSPF protocol use to describe its LSDB? ()
Which of the following commands can be used to check the session status of the PPPoE client? ()
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
The following protocols are China's link state routing protocol
OSPF Router ID. It must be the same as the IP address of an interface on the router.
The following two configuration commands can implement router RIA. The route to the same destination 10.1.1.1.0 is active and standby:
An ACL rule is as follows: Which of the following IP addresses can be matched by permit rules? () rule5per mit ip source10.0.2.00.0.254.255
The administrator configures R1 as shown in the figure. But R1 cannot learn the routes of other routers, so it may be.
The reason is? () (Multiple Choice Questions)
What is wrong about the following description of the router? ()
When an Access type port sends a message, it will ()·
In a Layer 2 network with redundant links, which of the following protocols can be used to avoid loops?
AAA. Which of the following is not included? ()
The Layer 2 networking of WLAN refers to STA. It uses AC as its own gateway. ()
It is known that there are two entries in the routing table of a router. If the router wants to forward packets with the destination address of 9.1.4.5, the correct one of the following statements is ()
Which of the following descriptions of wireless devices is correct? ()
STA. The only way to discover the wireless network is the Beacom frame sent by the AP. ()
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? ()
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 ().
What is the total length of an IPv6 address in bits? ()
If it is UDP, the value of the protocol field of the network layer is 6 ()
What is the number range of advanced ACLs? ()
Which bridge is in the configuration BPDU sent by the switchID. Impossible to appear?
By default, what is the period for sending 0SPF HELLO packets on the broadcast network? ()
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. ()
What is the port number used by the FTP protocol control plane? ()
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? ()
Which of the following interfaces are not open to Huawei controllers?
UDP is oriented to connectionless and must rely on () to ensure the reliability of transmission. ()
To provide different network services for different users on the AP, which of the following can be configured?
When adopting LACP mode for link aggregation, what is the default system interference level of Huawei switches? ()
The Priority field in the VLAN tag can identify the priority of the data frame. What is the scope of this priority? ()
Which of the following IPv4 addresses is a class A address? ()
Which parameter is used in the spanning tree protocol for root bridge election? ()
The output information of a router's routing table is shown in the figure. Which of the following statements is correct? () (Multiple Choice Questions)
When the device running STP receives the RSTP configuration BPDU, it will discard it. ()
After the administrator successfully logged in to the router through Te1net, he found that the router’s interface could not be configuredIP address. Then the possible reasons are ()
In the network shown in the figure, which of the following descriptions is correct? () (Multiple Choice Questions)
NFV (Network Functional Virtualization), network function virtualization, realizes the deployment of network applications in a software-based way. ()
Management Information Base (MIB) Information Base) is a virtual database, which only exists on the NMS. ()
System-view (huawei) command-privilege level3 view user save is correct about the above configuration command ()
By default, in the SNMP protocol, which port number does the agent process use to send alarm messages to N? ()
What is the default step length of ACL on AR G3 series routers? ()
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? ()
Which of the following commands can be used to view the CPU usage of the router? ()
What elements can NAPT convert? ()
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. ()
What kind of network equipment can host A and host B use to achieve communication?
What is the main function of the DHCP DISCOVER message? ()
Which of the following advantages does the single-arm routing approach achieve inter-VLAN routing and intercommunication? ()
If host A. has the ARP cache of host B., host A. can ping host B. ()
FAT AP can independently complete wireless user access, wireless user authentication, and business data forwarding without AC. ()
Telnet is based on TCP protocol ()
On the VRP operating platform, what command is used to display the current interface configuration in the interface view? ()
1/128 is the IPv6 loopback address ()
The device port running the STP protocol is in the Forwarding state. Which of the following statements are correct? ()
Which of the following descriptions about firewalls is wrong? ()
In what state does the OSPF protocol determine the master-slave relationship of DD. packets? ()
Network switch A and router A are connected by two links. The two links are aggregated in manual load sharing mode. The aggregated port number is 1, and the aggregated link needs to carry VLAN TAG100 when forwarding data. The switch When A uses a trunk link, which of the following configurations need to be used by switch A? ()
In VRPOn the platform, the command"interfacevlanit＜vlan-id＞"The role is (). ()
PAP authentication is more secure than CHAP authentication because it does not carry passwords in clear text
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 ( )
Which of the following is not the reason why RSTP can increase the speed of convergence? ()
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 ()
The main function of the DNS protocol is ()
On the VRP platform, which of the following methods can be used to access previous historical commands? ()
The broadcast address is a special address that all the host bits in the network address are set to, and it can also be used as a host address. ()
When using FTP for file transfer, how many TCP connections will be established? ()
When planning a campus network, which of the following mask lengths is recommended for device interconnection IP addresses? ()
NAPT distinguishes the IP addresses of different users through the protocol numbers in TCP, UDP, or IP packets ()
What is the value of TPID. defined by IEEE802.1Q? ()
The following description about the specified port of the spanning tree is correct ()
The following statement about the TTL field in the IP packet header is correct. ()
The two ends of the PPP link are not in the same network segment and cannot communicate
In the WLAN network architecture, terminal devices that support the 802.11 standard are called? ()
On the broadcast network, both DR and BDR use the multicast address 224.0.0.6 to receive link state update messages ()
Which of the following statements about single-arm routing are correct? ()
The following statement about Python is incorrect ()
Which of the following fields is not included in the He1lo packet of the OSPF protocol? ()
Both pwD. and dir commands in the VRP operating platform can view the file information in the current directory, ()
The correct setting of the terminal emulation program when configuring the router through the Console ()
What is the MAC address of the data link layer of each VAP on the AP? ()
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? ()
UDP is connectionless and must rely on () to ensure the reliability of transmission.
The HybriD. port can be connected to the user host or other switches. ()
If the network address of a network is 192.168.1.0, then its broadcast address must be 192.168.1.255. ()
DNS is used for domain name resolution
RADIUS is a common protocol to implement AAA. ()
FTP transfer data at a time requires several TCP connections to be established
Which of the following port states is not included in the RSTP protocol? ()
The router forwards data according to the IP routing table, and the Layer 2 switch forwards data according to the MAC. address table
When the host frequently moves, which VLAN division method is most appropriate? ()
Static NAT can only achieve one-to-one mapping between private addresses and public addresses ()
Use the command kdir test in the VRP operating platform. The system will create a directory named test.
Which of the following protocols does the RA. message used by IPv6 stateless autoconfiguration belong to? ()
VLAN4095 cannot be created on Huawei switches, and VLAN1 cannot be created ()
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. ()
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.
Which of the following fields is not included in the HELL0 packet of the OSPF protocol? ().
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 role of the OSPF protocol 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. ()
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?
Using a traditional landline to make a call is a way of network communication. ()
Switch stacking supports more than two devices, and multiple switches can be grouped into a logical device through stacking. ()
The WPLS tag header is encapsulated between the data link layer header and the network layer header of the message.
As shown in the figure, you only need to configure this static route on R1, and the two hosts can communicate with each other normally.
All interfaces of the router belong to the same broadcast domain. ()
PPPoE sessions can only use CHAP authentication ()
In RSTP mode, both alternate and backup ports cannot forward user traffic and cannot receive, process, and send BPDU.
In RSTP, a backup port can replace a faulty root port.
(The administrator performs the configuration shown in the figure on a router, and a host is connected to Gi/0/0 of the router. Which of the following statements is true about the IP address obtained by the host through DHCP?)
(Which of the following statements about IPv6 anycast addresses are true?)
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?
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.
For the Versatile Routing Platform (VRP), the login timeout period can be set only on a VTY interface.
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
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
Which of the following fields are contained in an ARP packet?
(By default, in the SNMP protocol, which port number is used by the proxy process to send alarm messages to the NMS?)
(Which of the following OSPF packets can be used to confirm the received Link State Update (LSU) packets?)
Which of the following are true about the Ethernet data frame with the "Length/Type" field being 0x0806?
Which SNMP version focuses on two main aspects, namely security and administration. The security aspect is addressed by offering both strong authentication and data encryption for privacy. The administration aspect is focused on two parts, namely notification originators and proxy forwarders.
(Which of the following are not main functions of routers?)
When two switches are connected through link aggregation, what are the requirements for the interfaces on the two switches?
The IP address 192.168.1.127/25 represents a ( ) address.
(ICMP packets do not contain port numbers. Therefore, NAPT cannot be used.)
(Each network device running SNMP runs an agent process locally.)
Which of the following VRP commands can be used to enter area 0 view?
(The IP addresses of VLANIF interfaces on the same switch must be different.)
Which of the following fields are included in an MPLS header?
After a switch restarts, static MAC address entries saved on the switch remain in the MAC address table.
In a broadcast address, all host bits are set to 1, and a broadcast address can be used as a host address.
If Proto of a route displayed in the routing table is OSPF, the preference of the route must be 10.
When a host uses the stateless address autoconfiguration solution to obtain an IPv6 address, the host cannot obtain the DNS server address.
If a device running STP receives an RSTP configuration BPDU, it discards the BPDU.
Which of the following states indicates that the OSPF neighbor relationship has been established?
Which of the following statements regarding static routing and dynamic routing is incorrect?
With SNMP, an NMS can only display the device running status but cannot deliver configurations.
Which of the following is not a characteristic of small campus networks?
(When a network engineer enters a command, the following information is displayed:
Error: Unrecognized command found at 'A' position. Which of the following statements is true about such information?)
The TCP protocol uses the three-way handshake mechanism to establish and disable connections. Therefore, TCP supports reliable data transmission.
In RSTP, an edge port becomes a common STP port after receiving a configuration BPDU.
(Network Functions Virtualization (NFV) implements software-based network application deployment.)
(The IPv6 address architecture does not include which of the following address types?)
As shown in the figure, if host A has the ARP cache of host B, host A can ping host B.
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 are features of the OSPF protocol?
(Which of the following descriptions regarding the STP forwarding state is incorrect?)
Which of the following operations are mandatory to restore the factory default settings of an AR2200 router?
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.
The router that runs OSPF first enters the Full state and then synchronizes the LSDB.
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.
A router in the backbone area has complete LSDBs of routers in other areas.
Which of the following port states are included in Rapid Spanning Tree Protocol (RSTP)?
Which of the following are valid static route configurations?
(An administrator cannot log in to a Huawei router through Telnet, but other administrators can log in to the router. Which of the following are possible causes?)
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
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?
Which of the following is correct regarding the configuration of the trunk port and access port on a switch?
Which of the following packets are exchanged between STAs and an AP to obtain the AP's SSID before association with the AP?
Which of the following network parameters can be allocated using DHCP?
(What is the main function of a dynamic routing protocol?)
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?
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 advantages is/are provided by inter-VLAN routing in one-arm routing mode?
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?
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?
What is the length range of an Ethernet_II frame that contains an Ethernet header?
The output information of the router is shown in the figure. Which of the following statements is wrong? () (Single-choice question)
Which of the following IEEE802.11 standards does not support the 5GHz frequency band for communication? ()
The configuration of the country code will affect the frequency used for actual transmission and the maximum transmission power. ()
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)
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 port of the following switches will be blocked? () (Single-choice question)
Which of the following IEEE802.11 standards only supports the 2.4GHz frequency band for communication? ()
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? ()
Regarding the corresponding relationship between the access control list number and type, the following description is correct ()
The MAC address table of existing switches is shown in the figure. Which of the following statements are correct? () (Single-choice question)
On Huawei devices, if you use aaA authentication to authorize. When the remote server does not respond, you can authorize from the network device side ()
In order to distinguish between different users and provide different network services on the AP. Which of the following can be configured through configuration? ()
What is the corresponding Solicited.-node multicast address for IPv6 iAilt2019::8:AB.? ()
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)
In the network as shown in the figure below, host A logs in to router A through Telnet. Then obtains the configuration file of router B through FTP on the remote interface. At this time, how many TCP connections does router A have? () (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)
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. ()
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? ()
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)
ifoneLength/Type = 0X8100 taught by the Ethernet data, which of the following is correct? ()
Which stage in the life cycle of campus network construction is the beginning of a project? ()
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? ()
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 Huawei tracert diagnostic attack is used to track the forwarding path of data ()
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 assumes that all routers can enable OSPF at the same time. Which router is the DR in this network? () (Single-choice question)
The router needs to modify the destination IP address in the data packet when forwarding the data packet. ()
Which of the following descriptions about the switch is wrong?
The network management system can only view the operating status of the device through the SNMP protocol, but cannot issue the configuration ()
Regarding the configuration shown in the figure, which statement is correct? () (Single-choice question)
In the OSI reference model, what can complete end-to-end error detection and flow control is ()
If the broadcast address of a network is 172.16.1.255, what might its network address be? ()
FIT AP can work independently without relying on AC. ()
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)
Which packet type is used by network devices running the SNMPv1 protocol to actively send alarm information? ()
As shown in the figure below, what kind of network equipment can host A and host B use to communicate? () (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 two switches shown in the figure below have both enabled the STP protocol, which port will eventually be in the Blocking state? ()
Which of the following commands can change the device name to huawei? ()
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? ()
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)
As shown in the figure, is the description of this network topology correct? () (Single-choice question)
Which of the following types of addresses are not included in IPv6 addresses? ()
As shown in the figure below, which of the following statements is correct? () (Single-choice question)
By default, network devices running the SNMPv2C. protocol use which of the following port numbers to send trap messages to the network management system? ()
Which field of the Pv6 packet header can be used for Q0s? ()
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)
What is wrong about the description of the information as shown in the figure? () (Single-choice question)
(RI) display interface g0/0/0
GlgabltEtherneto/0/0 current state :Adainistratively DOWN Line protocol current state :DOWN
The 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. ()
Telnet is a module that implements the Telnet protocol that comes with Python ()
Which of the following SNMP packets are sent to the NMS by the Agent on the managed device ()
What is the number range of the Layer 2 ACL? ()
What command can be typed in the system view to switch to the user view? ()
As shown in the figure below. All hosts can communicate normally. Is the corresponding relationship between SWA MAC address and port correct? () (Single-choice question)
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)
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)
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 ().
