Refer to the display startup command output shown in the figure. Which of the following statements are true?
UDP is connectionless and must rely on () to ensure the reliability of transmission.
Which of the following descriptions about OSPF's DD. packets and LSA. is correct ()*
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? ()
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?
Refer to the graphic, after the ping 10.1.1.2 command is executed on R1, LSW1 receives a tagged data frame from VLAN 10 on LSW2.
The following figure shows the routing table of a router. When the router receives a destinationIWhen the P address is a data packet of 9.1.1.1,The router will forward according to the route of 9.1.0.0/16 because the mask length of this route is longer. ()(True or False)
When OSPF protocol establishes adjacency, which of the following parameters must be consistent?*
The network is shown in the figure below. Switch configuration information is shown in the figure. Which of the following statements is correct? () (Multiple Choice Questions)
If the configured ACL rules have an inclusive relationship, it should be noted that the rule numbers of strict conditions need to be sorted first, and the rule numbers of loose conditions need to be sorted later to prevent packets from hitting the rules of loose conditions and stop being pushed down to continue matching. Cannot hit the strict conditions of the rules. ()
Which packet type is used by network devices running the SNMPv1 protocol to actively send alarm information? ()
According to the following configuration, which statement is correct? () (Multiple Choice Questions)
Int g0/0/1
Int g0/0/2
Port hybrid pvid vlan 20
Port hybrid pvid vlan 10
Port hybrid untagged vlan 10 20
Port hybrid untagged vlan 10 20
As shown in the figure below. Router A has passed the IP address 10.0.12.2 Telnet Router B. Which of the following operations on the current interface will cause the Telnet session between Router A and Router B to be interrupted? () (Multiple Choice Questions)
When the host accesses the web service of the server, the value of the "Protocol" field at the network layer is 6.
Which of the following commands sets the data forwarding mode on an AC to direct forwarding?
DHCP is called Dynamic Host Configuration Protocol. It mainly assigns IP addresses and DNS information to hosts automatically. The messages used are ()
In an OSPF broadcast network, with which routers does a Dothter router exchange link state information? ( )
If the application-layer protocol is Telnet, what is the value of the "Protocol" field in the IPv4 header?
The network is shown in the figure below. The following statementcorrectIs there? () (Multiple Choice Questions)
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.
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?
An administrator wishes to manage the router in the remote branch office, which method can be used?
The router ID of the OSPF process takes effect immediately after being changed.
Which of the following MAC addresses cannot be used as the MAC address of the host network card? ()*
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*
On the network shown in the figure, Host A and Host B cannot communicate with each other.
Which of the following IEEE802.11 standards support operation in the 5GHz frequency band? ()
As specified by the RSTP protocol, when a root port fails, which type of port will function as a new root port and enter the forwarding state without any delay?
Static NAT can only implement one-to-one mapping between private and public addresses.
Which devices are generally involved in wlan deployment schemes in enterprise scenarios? ()*
Which of the following statements about static routes on Huawei devices is false?
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
In an IPv4 network, AP supports static and DHCP methods to obtain IP addresses. ()
When the router is powered on, it will read the configuration file from the default storage path to initialize the router. If there is no configuration file in the default storage path, what will the router use for initialization? ()
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? ()
Regarding the corresponding relationship between the access control list number and type, the following description is correct ()
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?
Which of the following attributes cannot be used as a parameter to measure C0st? ()
Which of the following are not the characteristics of a small campus network? ()
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)
A device has been configured to complete Telnet configuration. The device login address is 10.1.1.10. The Telnet user name is admin and the password is Huawei@123. The following is the correct way to use telnertlit to log in to this device? ()
Compared with the IPv4 packet header, which field is added to the IPv6 packet? ()
The network is shown in the figure. Which router is the BDR in this network? () (Single-choice question)
As shown in the picture. About OSPF topology and configuration. Which of the following statements is 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 ()
Which of the following methods can read data non-blocking in Python's telnetliB.? ()
A DHCP server is deployed on the network, but the administrator finds that some hosts have not correctly obtained the addresses specified by the DHCP server. What are the possible reasons? (Multiple Choice Questions)
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. Host A and Host B cannot communicate. ()(True or False)
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)
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 network shown in the figure below. The network where host A is required to access the Internet through Easy IP, then which of the following ACLs should be used on the G0/0/3 interface of router A? () (Single-choice question)
ifoneLength/Type = 0X8100 taught by the Ethernet data, which of the following is correct? ()
The broadcast address is a special address in which the host bits in the network address are all set to 1, and it can also be used as a host address. ()
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 ().
In the MAC address table of the switch, which of the following entries will not age? ()
The Layer 2 Ethernet switch generates entries in the MAC address table according to the () of the Ethernet frame received by the port. ()
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)
Two switches use manual link aggregation at the same time. The following statement is wrong. () (Single-choice question)
By default, the root path cost of the root bridge in the STP protocol must be 0 ()
For switches running the SIP protocol, the port needs to wait for the forwarding delay in the Learning state before it can be converted to the Forwarding state. ()
The ACL configuration information of a certain router is shown in the figure. Which of the following statements is correct? () (Single-choice question)
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)
Which of the following SNMP packets are sent to the NMS by the Agent on the managed device ()
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
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)
When the router forwards a data packet, if it does not match the corresponding detailed route and there is no default route, it will directly discard the data packet ()
The configuration information of a certain port of the switch is shown in the figure. What is the PVID of this port? () (Single-choice question)
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)
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)
As shown in the figure, the administrator hopes that all hosts cannot access the Internet from 8:00 to 17:00 every day. Which ACL rule needs to be bound to traffic-filter outbound in the interface configuration of G0/0/1? () (Single-choice question)
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? ()
What is the corresponding Solicited.-node multicast address for IPv6 iAilt2019::8:AB.? ()
The configuration information of a certain router is shown in the figure. Which of the following statements are correct? () (Single-choice question)
#
aaa
authentication-scheme default
authentication-scheme huawei
authentication-mode radius
authorization-scheme default
authorization-scheme huawei
accounting-scheme default
domain default
domain default admin
domain huawei
authentication-scheme huawei
authorization-scheme huawei
local-user huawei password cipher 123456
local-user huawei@huawei password cipher 654321
#
The network shown in the figure below assumes that all routers can enable OSPF at the same time. Which router is the DR in this network? () (Single-choice question)
If the MAC address of an interface is 0OEO-FCEF-OFEC, what is its corresponding EUI-64 address? ()
As shown in the figure. If host A has the ARp cache table of host B, then host A can ping host B. ()(True or False)
The router needs to modify the destination IP address in the data packet when forwarding the data packet. ()
If the network address of a network is 10.1.1.0/30, what is its broadcast address? ()
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? ()
(Network Functions Virtualization (NFV) implements software-based network application deployment.)
Which of the following fields is not included in the HELL0 packet of the OSPF protocol? ()
Which of the following port states are included in Rapid Spanning Tree Protocol (RSTP)?
(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?)
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 statements is true about active interface election for an Eth-Trunk in LACP mode?)
Network devices running SNMP can proactively report traps to help network administrators detect faults in a timely manner.
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?
The data link layer uses PPP encapsulation. The IP addresses of the two ends of the link can be in different network segments.
In RSTP, an edge port becomes a common STP port after receiving a configuration BPDU.
Assuming that OSPF has been enabled on all routers in the following figure, which router is the BDR on this network?
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?
It is advised to assign static IP addresses to servers during campus network planning.
Which of the following is the default value of the Router Dead Interval field in OSPF Hello packets on a broadcast network?
For the Versatile Routing Platform (VRP), the login timeout period can be set only on a VTY interface.
As shown in the figure, which of the following ports will be in blocking state?
Which of the following states indicates that the OSPF neighbor relationship has been established?
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?
(Which of the following descriptions regarding the STP forwarding state is incorrect?)
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.
As shown in the figure, if host A has the ARP cache of host B, host A can ping host B.
If Spanning Tree Protocol (STP) is disabled on the network consisting of switches, a Layer 2 loop will definitely occur.
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.
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 of the following commands is used to configure the country code on an AC?
If the IPv4 address of a host on a LAN is 192.168.1.1/30, the host will process IP packets with specific destination IP addresses. Which of the following IP addresses may be the destination IP addresses?
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.
If a device running STP receives an RSTP configuration BPDU, it discards the BPDU.
(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 the routing table shown in the figure are true?
Which of the following are true about the Ethernet data frame with the "Length/Type" field being 0x0806?
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
(By default, in the SNMP protocol, which port number is used by the proxy process to send alarm messages to the NMS?)
On an STP-enabled switch, a port in the Learning state can transition to the Forwarding state only after the Forward Delay timer expires.
(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?)
(Which of the following methods can be used to assign service VLANs during campus network planning?)
Which of the following descriptions regarding the TTL field of the IP packet is correct?
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.
When two switches are connected through link aggregation, what are the requirements for the interfaces on the two switches?
Which of the following IEEE 802.11 standards supports a theoretical negotiated rate of 5 Gbit/s or higher?
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 about the network shown in the figure is true?
When planning a campus network, which of the following methods can be used to divide service VLANs? ()
What is the protocol number corresponding to the ospf protocol at the network layer? ()
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? ()
Static NAT can only achieve one-to-one mapping between private addresses and public addresses ()
If the broadcast address of a network is 172.16.1.255, then its network address may be ().
Since the TCP protocol uses a three-way handshake mechanism when establishing a connection and closing a connection, TCP supports reliable transmission.
How many more bytes are the packets using MPLS label double-layer nesting technology than the original IP packets ()
In the wLAN network architecture, terminal devices that support the 802.11 standard are called? ()
Layer 3 devices like routers receive data frames based on () Forwarding data frames.
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. ()
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. ()
When the host frequently moves, which VLAN division method is most appropriate? ()
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 tree network topology is actually a hierarchical star structure, which is easy to expand the network scale, but the higher the level, the more serious the network problem caused by the node failure ()
The 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. ()
When building a campus network, which of the following protocols can be used to avoid Layer 2 loops? ()
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 ()
When accessing across network segments, the source and destination IP will change, and the source and destination MAC will not change
CSS refers to the combination of two switch devices that support cluster features. Logically combined into one switch device. ()
The router running the OSPF protocol reaches the FULL state first, and then synchronizes the LSDB. ()
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? ()
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? ()
In which working state of the port in the STP protocol can it be changed to the Forwarding state without going through other states? ()
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 ()
UDP cannot guarantee the reliability of data transmission, and does not provide functions such as message sequencing and flow control. It is suitable for flows that do not require high transmission reliability, but require high transmission speed and delay ().
Which of the following advantages does the single-arm routing method achieve routing intercommunication between Vlan? ()
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 approach achieve inter-VLAN routing and intercommunication? ()
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. ()
Among the following commands for configuring the default route, the correct one is ()
The WPLS tag header is encapsulated between the data link layer header and the network layer header of the message.
Which of the following parameters is not included in the configuration BPDU of the STP protocol? ()
After FIT AP obtains AC.'s IP address, what is the first operation to perform? ()
Which of the following statements is correct for the ACL configured in the Telnet application? ()
Which of the following fields is not included in the HELL0 packet of the OSPF protocol? ().
DHCP is an application layer protocol. In order to make it more reliable when assigning P, its transport layer uses TCP protocol.
In a broad sense, the transmission medium that constitutes the wireless local area network wlan does not include? ()
In a Layer 2 network with redundant links, which of the following protocols can be used to avoid loops? ()
On the broadcast network, both DR and BDR use the multicast address 224.0.0.6 to receive link state update messages ()
Which state does the 0SPF protocol use to indicate that the adjacency relationship has been established? ()
Take effect immediately after the Router ID of the OSPF process is modified ()
FTP transfer data at a time requires several TCP connections to be established
Both pwD. and dir commands in the VRP operating platform can view the file information in the current directory, ()
The router forwards data according to the IP routing table, and the Layer 2 switch forwards data according to the MAC. address table
Which of the following information prompts is used by the VRP operating platform for incomplete input commands? ()
The router needs to modify the destination IP address in the data packet when forwarding the data packet ()
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? ()
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.
When two OSPF routers form a 2-WAY neighbor relationship, the LSDB. has been synchronized. ()
The administrator plans to implement route backup by configuring static floating routes. The correct way to achieve this is ()
The election of the root switch in STP only compares the priority of the switch, while in RSTP, the priority of the switch is compared with the MAC address at the same time. ()
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#
What kind of packets does the OSPF protocol use to request LSAs that are missing locally? ()
The IP addresses of the VLANIF interfaces of the same switch cannot be the same. ()
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 IPv6 address 2001: ABEF:224E:FFE2:BCC0:CD00:DDBE:8D58 cannot be abbreviated. ()
What kind of message does the OSPF protocol use to confirm the received LSU message? ()
The administrator plans to implement route backup by configuring static floating routes, the correct way to achieve this is ().
In standard STP mode, which of the following non-root switches will forward the C-set BPDU generated by the root switch? ()
VRP operating platform, which of the following commands can only view static routes? ()
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? ()
NFV (Network Functional Virtualization), network function virtualization, realizes the deployment of network applications in a software-based way. ()
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 IPv4 addresses the host uses cannot directly access the Internet? ()
The DHCPv6 server supports the provision of other configuration information such as DNS server addresses for the host.
Only the WPA2-PSK security policy supports the use of TKIP for data encryption. ()
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
By default, what is the period for sending 0SPF HELLO packets on the broadcast network? ()
In the network shown in the figure, which of the following descriptions is correct? () (Multiple Choice Questions)
Which of the following parameters is used in LCP negotiation to detect link loops and other abnormal conditions? ()
The DHCPv6 server supports the provision of other configuration information such as DNS server addresses for the host. ()
When the host frequently moves the office, which VLAN division method is most suitable? ()
What is the value of the Type field in the RStp configuration BPDU message? ()
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 commands can be used to check the session status of the PPPoE client? ()
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.
In the campus network, the reliability of the network can be improved by using link aggregation and stacking technology. ()
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. ()
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? ()
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? ()
Which bridge is in the configuration BPDU sent by the switchID. Impossible to appear?
The Layer 2 networking of WLAN refers to STA. It uses AC as its own gateway. ()
When AP and MC are in different Layer 3 networks, what method is recommended for AP to discover AC?
If during the PPP authentication process, the authenticatee sends the wrong user name and password to the authenticator, what type of message will the authenticator send to the authenticatee? ()
When two OSPF routers form a 2TAY neighbor relationship, LSDB. has been synchronized.
By default, what is the lease period for the DHCP server to assign an IP address? ()
When adopting LACP mode for link aggregation, what is the default system interference level of Huawei switches? ()
The output information of the sub-interface of a router aggregate port 1 is shown in the figure. Based on this information, which of the following statements are correct? ()
The route entry 10.0.0.24/29 may be aggregated from which of the following subnet routes? ()*
Which of the following are not open interfaces for Huawei network equipment? ()*
VLAN 4095 is reserved for system use and VLAN 1 cannot be deleted on Huawei switches.
In the STP protocol, which of the following factors will affect the election of the root switch? ()*
When a switch port receives a frame that does not carry a VLAN tag, it must add a PVID to the frame.
The network shown in the figure below. From a security perspective, router A refuses to receive OSPF packets and ICMP packets received from interface G0/0/1. Which of the following commands can achieve this requirement? () (Multiple Choice Questions)
As shown in the figure below, the network. All switches enable the STP protocol. Disable SWA's G0/0/2 port to configure the BPDU sending function. SWC's G0/0/1 reconverges to become the root port. Which of the following statements is correct about this process? () (Multiple Choice Questions)
Which of the following attributes cannot be used as a measure of CoThe parameter of st? ()*
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TESTED 18 Jan 2025
