Which of the following statements is correct for the ACL configured in the Telnet application? ()
The role of the OSPF protocol is
How many types of OSPF packets are there? ()
UDP is connectionless and must rely on () to ensure the reliability of transmission.
On the VRP operating platform, what command is used to display the current interface configuration in the interface view? ()
In what state does the OSPF protocol determine the master-slave relationship of DD. packets? ()
If the Length of an Ethernet data frame/Type = 0x8100, which of the following statements is correct? ()
In the wLAN network architecture, terminal devices that support the 802.11 standard are called? ()
LACP protocol priority, switch A. and switch B. adopt LACP mode link aggregation, and all interfaces join the link aggregation group, and set the maximum number of active ports to 3, then which interface of switch A is not an active port? ()
RADIUS is a common protocol to implement AAA. ()
What kind of message does the DHCP server use to confirm that the host can use the IP address? ()
Telnet is based on TCP protocol ()
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 ()
An existing switch is connected to a designated port through a port, but the port does not forward any packets, but can monitor network changes by receiving BPDUs, then the role of the port should be ().
The switch is connected to the host. What is the common port link type of the switch? ()
When the Access type port sends a message, it will ().
STA. Before associating to AP, it needs to obtain SSID through some message exchange. What are these messages? ()
UDP has a sliding window mechanism to control the speed of data transmission
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.
There are multiple route entries to the same destination network in the routing table. These routes are called? ()
The HybriD. port can be connected to the user host or other switches. ()
FAT AP can independently complete wireless user access, wireless user authentication, and business data forwarding without AC. ()
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 ( )
Trunk ports can allow multiple VLANs to pass, including VLAN4096. ()
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 ()
VLAN4095 cannot be created on Huawei switches, and VLAN1 cannot be created ()
Which information of the data frame is used by the VLANIF interface to determine whether to perform Layer 2 or Layer 3 forwarding? ()
The Backup port in RSTP can replace the failed root port ()
When planning a campus network, which of the following methods can be used to divide service VLANs? ()
If the broadcast address of a network is 172.16.1.255, then its network address may be ().
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? ()
When the IPv4 protocol is used as the network layer protocol, which field is not included in the network layer header? ()
Using a traditional landline to make a call is a way of network communication. ()
The WPLS tag header is encapsulated between the data link layer header and the network layer header of the message.
Which layer of protocol does ARP belong to
In a Layer 2 network with redundant links, which of the following protocols can be used to avoid loops? ()
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 ()
How many types of data flows with different service levels can be marked based on MPLS labels? ()
Which of the following does not include the advantages of Wi-Fi6 compared to Wi-Fi5? ()
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? ()
When the host frequently moves, which VLAN division method is most appropriate? ()
By default, what is the ForwarD.Delay time of the STP protocol in seconds? ()
Which of the following descriptions about firewalls is wrong? ()
The switch receives a unicast data frame. If the destination MAC of the data frame can be found in the MAC table, the data frame will be forwarded from the corresponding port of this MAC. ()
The host's IPv4 address is 200.200.200.201/30. Which of the following hosts has an IPv4 address and its communication does not need to be forwarded by a router? ()
The following statement about the HybriD. port is correct ()
Since the TCP protocol uses a three-way handshake mechanism when establishing a connection and closing a connection, TCP supports reliable transmission.
1/128 is the IPv6 loopback address ()
If the Proto of a certain route information in the routing table is OSPF, the priority of this route must be 10. ()
When deploying ACL on Huawei equipment, which of the following descriptions is correct is ()
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? ()
Which of the following advantages does the single-arm routing method achieve routing intercommunication between Vlan? ()
Take effect immediately after the Router ID of the OSPF process is modified ()
Which field of the ipv6 packet header can be used for QoS? ()
The network management system can only view the operating status of the device through the SNMP protocol, but cannot issue configurations. ()
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 administrator has configured the AR2200. Which of the following descriptions about the configuration information is correct ()
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.
What is the total length of the VLAN frame format defined by IEEE802.1Q? ()
Network administrators use Ping to test the connectivity of the network. Which of the following protocols may be used in this process? ()
If the Ethernet data frame Length/Type=0X0806, which statement is correct ()*
What are the three sources for routers to obtain routing entries? ()*
Which of the following planes does a network device have?
Which of the following statements are true about the dynamic MAC address table?
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 following figure shows the display interface Eth-Trunk 1 command output on SWA. In the MAC address table of SWA, which of the following interfaces maps the MAC address of SWB?
To enable Router A to communicate with Loopback 0 on Router B on the network shown in the figure, which of the following commands needs to be run on Router A?
Which of the following attributes cannot be used as a measure of CoThe parameter of st? ()*
As shown in the figure below, are the following statements correct? () (Multiple Choice Questions)
The transmission rate of the Eth-Truk port in manual link aggregation mode is related to ().*
What are the advantages of using DHCP to allocate IP addresses?
What are the stable states of OSPF neighbor relationship? ()*
The routing table is generated by ()*
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
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 encapsulation and decapsulation are true?
As shown in the figure, after the two routers are configured with 0SPF, the administrator configures the
When both ends running PPP protocol detect that the physical link is active, the link state will transit from dead to establish. Which of the following protocols is used to negotiate the link parameters during this phase?
Which of the following message types does DHCP contain?
As shown in the figure below. All switches enable the $P protocol and keep other configurations in their default state. When the network is stable, are the following statements correct? () (Multiple Choice Questions)
If the packet matches the deny rule in an ACL, the packet is discarded.
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?
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? ()
Which of the following statements is true about the edge port in RSTP?
ip route-static.10.0.2.2255.255.255.25510.0.12.2 preference20, the correct statement about this command is ()
When the LCP phase of PPP is negotiated, the content of the negotiation includes ()*
In an OSPF broadcast network, with which routers does a Dothter router exchange link state information? ( )
What is the default lease time of the IP address allocated by the DHCP server?
The administrator cannot log in to the Huawei router through Telnet, but other administrators can log in normally, so which of the following are the possible reasons? ()*
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?*
Making a call on a landline telephone is a type of network communication.
SDN requires the control and forwarding planes to be separated.
Which of the following statements about the default route are correct?
Which of the following statements about the various versions of the SNMP protocol are correct?
An ACL rule is as follows: Which of the following IP addresses can be matched by permit rules? () rule5per mit ip source10.0.1.00.0.254.255*
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.*
Which of the following network types are supported by 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 network shown in the figure below. The host has an ARP cache. Which of the following statements are correct? )(Multiple Choice Questions)
In what ways does VRP support router configuration? ()*
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 BIDs cannot be contained in a configuration BPDU sent by a switch?
After the two routers are configured with 0SPF, the administrator configures the command on RTA. The following description is correct ()
Is there any correct statement about the TTL field in the IPv4 header? ()
The following description of the Router ID of OSPF is incorrect ().*
Which of the following fields are present in both IPv6 and IPv4 packet headers? ()*
What command line views exist on the VRP operating platform? ()*
Which of the following packets is used by OSPF to describe its link state database (LSDB)?
Which of the following commands can be used to query the configuration information of the device's 0SPF protocol? ()*
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?
What packet types are included in DHCP?
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)
Wi-Fi 6 is also known as the IEEE 802.11ax standard.
Which of the following is not a type of OSPF LSA?
Which of the following features does the OSPF protocol have? ()*
Which of the following MAC addresses cannot be used as the MAC address of host network adapters?
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 statements about the default route are correct? ()
Which devices are generally involved in wlan deployment schemes in enterprise scenarios? ()*
All interfaces of routers running 0SPF protocol must belong to the same area. ()
When Huawei switches allow STP, the priority of the switch by default is ()
By default, what is the lease period for the DHCP server to assign an IP address? ()
SNMP messages are carried over UDP.
By default, on the broadcast networkOSPFWhat is the transmission period of the protocol HELLO message? ()
In order to realize the launch of FIT AP, FIT AP first needs to obtain the IP address of AC. Which of the following is not included in the way FITAP obtains the IP address of AC.? ()
Which of the following protocols is OSPF based on?
Which of the following parameters is used in LCP negotiation to detect link loops and other abnormal conditions? ()
Which of the following messages does the AP use to request the software version from AC.? ()
The following two configuration commands can implement router RIA. The route to the same destination 10.1.1.1.0 is active and standby:
Users cannot configure VLAN ID. to 0. ()
The display startup information of the AR2200 router. Regarding these information, the statement is wrong ()
When the device running STP receives the RSTP configuration BPDU, it will discard it. ()
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?
In the VRP system, what function does the Ctrl+Z key combination have? ()
Which statement about OSPF area division is wrong? ( )
All ports on the root bridge switch are designated ports. ()
Does the WEP security policy support the use of TKIP for data encryption?
The DHCPv6 server supports the provision of other configuration information such as DNS server addresses for the host.
RADIUS is a common protocol to implement AAA.
Which of the following routing protocols has the highest priority?
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. ()
NFV (Network Functional Virtualization), network function virtualization, realizes the deployment of network applications in a software-based way. ()
Which of the following fields is not included in the HELL0 packet of the OSPF protocol?
When the FIT AP goes online, the software version will be downloaded from AC.
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.
Which of the following descriptions of wireless devices is correct? ()
The administrator wants to configure the P address on the G0/0/0 interface of the router. Which of the following addresses 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. ()
AP does not need AC. It can independently complete the work of wireless user access, wireless user authentication, and business data forwarding.
Which of the following is not the reason why RSTP can increase the speed of convergence? ()
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. ()
When two OSPF routers form a 2-WAY neighbor relationship, LSDB. has been synchronized. ()
Which of the following IPv6 addresses can be abbreviated as 2FFF DAC:ABEF:CDAA:732? ()
OSPF Router ID. It must be the same as the IP address of an interface on the router.
In the network shown in the figure, which of the following descriptions is correct? () (Multiple Choice Questions)
The mask length is 12 bits can be expressed as?
Which of the following statements about direct routing is correct? ()
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#
The DHCPv6 server supports the provision of other configuration information such as DNS server addresses for the host. ()
Which of the following descriptions about the switch is wrong? ()
The IPv6 address 2001: ABEF:224E:FFE2:BCC0:CD00:DDBE:8D58 cannot be abbreviated. ()
The static MAC. address table will not be lost after the system restarts ()
What kind of network equipment can host A and host B use to achieve communication?
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)
Which of the following information is not included in the MAC address table of the switch? ()
When adopting LACP mode for link aggregation, what is the default system interference level of Huawei switches? ()
By default, what is the period for sending 0SPF HELLO packets on the broadcast network? ()
VLAN4095 cannot be created on Huawei switches, and VLAN1 cannot be deleted. ()
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
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 ().
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 parameter is used in the spanning tree protocol for root bridge election? ()
According to the command output as shown in the figure, which of the following descriptions is correct? () (Multiple Choice Questions)
According to the command shown in the figure, which of the following descriptions is correct? () (Multiple Choice Questions)
FIT AP does not need AC. It can also work independently ()
AAA. Which of the following is not included? ()
To provide different network services for different users on the AP, which of the following can be configured?
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? ()
When two OSPF routers form a 2TAY neighbor relationship, LSDB. has been synchronized.
Which of the following 0SPF protocol packets can ensure the reliability of LSA update? ()
Which information of the data frame is used by the interface to determine whether to forward Layer 2 or Layer 3 forwarding? ()
By default, the root path cost of the root bridge in the STP protocol must be 0 ()
FIT AP can work independently without relying on AC. ()
When the switch port sends a data frame that carries the same VLANTAG and PVID., it must be stripped of VLANTAG and forwarded. ()
Telnetlib is a module that implements the Telnet protocol that comes with Python ()
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)
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 MAC address table of existing switches is shown in the figure. Which of the following statements are correct? () (Single-choice question)
＜Huawei＞display mac address
MAC address table of slot 0:
MAC Address VLAN/PEVLAN CEVLAN Port Type LSP/LSR-ID
VSI/SI MAC-Tunnel
5489 9811 0b49 1 Eth0/0/3 static 0/
Total matching items on slot 0 displayed =1
MAC address table of slot 0:
MAC Address VLAN/ PEVLAN CEVLAN Port Type LSP/LSR-ID
VSI/SI MAC-Tunnel
5489-989d-1d30 1 Eth0/0/1 dynamic 0/-
5489-9885-18a8 1 Eth0/0/2 dynamic 0/-
Total matching items on slot 0 displayed ＝2
The switch GE0/0/1 port configuration information is shown in the figure. Which VLAN data frame does the switch not carry when forwarding?()
Which of the following cannot be the length of the IPv4 packet header? ()
If the broadcast address of a network is 172.16.1.255, what might its network address be? ()
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
What is the destination IP address of the DHCP DISCOER message? ()
When the IPv4 protocol is used as the network layer protocol, which field is not included in the network layer header? ()
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)
Which of the following SNMP packets are sent to the NMS by the Agent on the managed device ()
The IPv6 protocol uses NS and NA. packets for duplicate address detection ().
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)
Which of the following statements are correct for the MAC address of the existing switch? ()
The number of VLANs that can be created using the commands "vlan batch1020 and "vlan batch10to20" respectively is ()
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)
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? ()
The following description of static and dynamic routing is wrong ().
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)
By default, network devices running the SNMPv2C. protocol use which of the following port numbers to send trap messages to the network management system? ()
Management Information Base (MIB) Information Base) is a virtual database, this database only exists on NMS. ()
The following two configuration commands can realize the master and backup backup of the router RIA to the same destination 10.1.1.0.
You can manually specify the source address or source interface of the CAPWAP tunnel on the AC. ()
Which of the following IEEE802.11 standards only supports the 2.4GHz frequency band for communication? ()
As shown in the figure below, host A and host B cannot communicate ()
What command can be typed in the system view to switch to the user view? ()
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 Layer 2 Ethernet switch generates entries in the MAC address table according to the () of the Ethernet frame received by the port. ()
When the Access type port sends a message, it will ().
Using the command mkdirtest in the VRP operating platform, the system will create a directory named test. ()
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)
The network management workstation manages network devices through the SNMP protocol. When an abnormality occurs in the managed device, what kind of SHMP message will the network management workstation receive? ()
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)
As shown in the broadcast network. 0SPF runs on four routers. And in the same area. Same network segment. OSPF will automatically elect one DR and multiple BDRs to achieve a better backup effect. ()(True or False)
As shown in the figure below, all hosts can communicate normally. Is the correspondence between the MAC address and the port in the MAC address table of SWB correct? () (Single-choice question)
On an interface that uses PPP as the data link layer protocol, can you configure a static route by specifying the next hop address or outbound interface? ()
As shown in the figure below. Which network device can host A and host B use to achieve communication? () (Single-choice question)
In the history of WLAN development, which of the following is not included in the main wireless protocol standards in the primary mobile office era? ()
Which of the following descriptions about the switch is wrong?
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? ()
How many bits are there in the VLAN ID in the VLAN format defined by IEEE802.1Q? ()
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?
The output information of the STP port of a certain switch is shown in the figure. Which of the following statements is wrong? () (Single-choice question)
［Huawei］display stp interface Ethernet 0/0/1
-------［CIST Global Info］［Mode STP］-------
CIST Bridge: 32768.4c1f-cc46-4618
Config TimesHello 4s MaxAge 20s FwDly 15s MaxHop 20
Active Times:Hello 2s MaxAge 20s FwDly 15s MaxHop 20
CIST Root/ERPC:0.4c1f-ccf7-3214/200000
CIST RegRoot/IRPC: 32768.4c1f-cc46-4d18/0
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)
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 ()
Which of the following fields is not included in the HELL0 packet of the OSPF protocol? ()
The two-layer switch is a data link layer device, which can identify the MAC address information in the data frame, and record these MAC addresses and corresponding port information in its own MAC address table. ()
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. ()
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 MPLS label header is encapsulated between the data link layer header and the network layer header of the message. ()
Which of the following parameters cannot be used for advanced access control lists? ()
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)
What is the corresponding Solicited.-node multicast address for IPv6 iAilt2019::8:AB.? ()
The protocol uses the P/A. mechanism to speed up the upstream port's transition to the Forwarding state, but what is the reason for no temporary loop? ()
How many bytes are there in a basic IPv6 header?
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?
(If a routing table contains multiple routes to the same destination network, what are these routes called?)
After a switch restarts, static MAC address entries saved on the switch remain in the MAC address table.
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)?
If the MAC address of an interface is 00E0-FCEF-0FEC, the corresponding EUI-64 address is ( ).
(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 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?)
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?
RSTP uses the proposal/agreement mechanism to shorten the time that an upstream port waits before transitioning to the Forwarding state, but no temporary loop occurs. Why?
Only one SSID can be bound to each radio of an AP.
Which of the following information is displayed when an entered command is incomplete on the Versatile Routing Platform (VRP)?
In RSTP mode, both alternate and backup ports cannot forward user traffic and cannot receive, process, and send BPDU.
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.
(Which of the following descriptions regarding the STP forwarding state is incorrect?)
(The IPv6 address architecture does not include which of the following address types?)
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
(Which of the following statements about IPv6 anycast addresses are true?)
(What is the main function of a dynamic routing protocol?)
Which of the following WLAN security policies support open link authentication?
Which of the following commands is used to configure the country code on an AC?
As shown in the figure, all switches run STP. Assume that the path cost of all ports is 200. What is the root path cost contained in the configuration BPDU received by G0/0/4 on SWD?
The data link layer uses PPP encapsulation. The IP addresses of the two ends of the link can be in different network segments.
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 is the default value of the Router Dead Interval field in OSPF Hello packets on a broadcast network?
(An Eth-Trunk interface can be used only as a Layer 2 interface.)
(You can run the "pwd" and "dir" commands on the Versatile Routing Platform (VRP) to view file information in the current directory.)
Which of the following statements about switches is false?
(Which of the following methods can be used to assign service VLANs during campus network planning?)
It is advised to assign static IP addresses to servers during campus network planning.
The TCP protocol uses the three-way handshake mechanism to establish and disable connections. Therefore, TCP supports reliable data transmission.
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.
Which of the following statements about the routing table shown in the figure are true?
Which of the following fields are contained in an ARP packet?
What is the number range of an advanced ACL?
A router in the backbone area has complete LSDBs of routers in other areas.
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.
(Which of the following routing protocols are dynamic routing protocols?)
An ACL is essentially a packet filter. An ACL takes effect only after it is applied to a service module.
Which of the following are features of the OSPF protocol?
(Each network device running SNMP runs an agent process locally.)
Which of the following is not a characteristic of small campus networks?
If the transport-layer protocol is UDP, the value of the "Protocol" field at the network layer is 6.
Which of the following IEEE 802.11 standards supports a theoretical negotiated rate of 5 Gbit/s or higher?
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?
Which of the following fields are included in an MPLS header?
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?
(Which layer of the OSI model does a router work at?)
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?
Which of the following methods is not supported by the Versatile Routing Platform (VRP) to configure a router?
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.
(Loops may cause broadcast storms on a Layer 2 network.)
Which of the following packets are OSPF packets?
(Refer to the display startup command output shown in the figure on an AR2200 router. Which of the following statements about the command output is false?)
MainBoard:
Startup system software: sdl:/ar2220-v200r003c00spc200.cc
Next startup system software: sdl:/ar222b-v200r003c00spc200.cc
Backup system software for next startup: null
Startup saved-configuration file: null
Next startup saved-configuration file: null
Startup license file: null
Next startup license file: null
Startup patch package: null
Next startup patch package: null
Startup voice-files: null
Next startup voice-files: null
With SNMP, an NMS can only display the device running status but cannot deliver configurations.
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