H12-811_V1.0 1

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). SWB: MAC Address VLAN Port MAC-A MAC-B 200 MAC-C 100 GEC/0/3 GEC/0/3 GEC/0/1. SWA: MAC Address VLAN Port MAC-A MAC-B MAC-C 10 GEC/O/1 GEC/0/2 20 GEC/0/3 100. SWB: MAC Address VLAN Port MAC-A MAC-B 20 MAC-C 100 GEC/0/3 GEC/0/3 GEC/0/1. SWA: MAC Address VLAN Port MAC-A MAC-B MAC-C GEC/0/3 20 GEC/0/3 GEC/0/3 100.

The switch G0/0/1 port configuration information is shown in the figure. Which VLAN data frame does the switch forward without VLANTAG? ? () (Single-choice question). 10. 30. 20. 40.

As shown in the figure, the G0/0/0 and G0/0/1 interfaces of RTA are connected to two different network segments. RTA is the gateway of these two networks. Before host A sends data to host C, will it send an ARP Request to obtain O's MAC address? () (Single-choice question). SW. Host C. G0/0/1 interface of RTA. G0/0/0 interface of RTA.

The two switches shown in the figure below have both enabled the STP protocol. Which port will eventually be in the Blocking state?. SWA's G0/0/3 port. SWA's G0/0/2 port. G0/0/2 port of SWB. G0/0/3 port of SWB.

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). 4. 1. 3. 2.

As shown in the picture. About OSPF topology and configuration. Which of the following statements is correct? () (Single-choice question). R1 and R2 can establish a stable OSPF neighbor relationship. R1 is more likely to become DR than R2, because its interface DR priority value is smaller. As long as the interface network type of R1 is restored to the default broadcast type, R1 and R2 can establish a stable neighbor relationship. As long as the interface network type of R1 is restored to the default broadcast type, and the hello time is adjusted to 10s, R1 and R2 can establish a stable neighbor relationship.

As shown in the figure, two switches use the default parameters to run STP root primary; Switch B uses the configuration command STP priority 0. Then which port will be blocked? () (Singlechoice question). G0/0/3 of HUB. G0/0/2 of switch A. G0/0/1 of switch A. G0/0/1 of switch B.

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). MAC-A GO/0/1 MAC-B G0/0/2 MAC-C G0/0/1. MAC-A G0/0/2 MAC-B GO/0/2 MAC-C GO/0/3. MAC-A GO/0/1 MAC-B GO/0/1 MAC-C GO/0/3. MAC-A GO/0/1 MAC-B GO/0/2 MAC-C GO/0/3.

The configuration information of a certain port of the switch is shown in the figure. Which of the following statements is wrong? () (Single-choice question). The port type is Hybrid. If the VLAN TAG carried in the data frame is 200, the switch will strip off the VLAN TAG and send it out. If the port receives a data frame without VLAN TAG, the switch needs to add VLAN TAG100. If the VLAN TAG carried in the data frame is 100, the switch will strip off the VLAN TAG and send it out.

The MAC address table of a certain switch is shown in the figure. If the switch receives a data frame with a destination MAC of 5489-9811-0b49 from port Eth0/0/2, which of the following statements is correct? (). Forward this data frame from the Eth0/0/2 port. Discard this data frame. Forward this data frame from the Eth0/0/3 port. Flood out this data frame.

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). acl number 2000 Rule 5 permit source 10.0.12.0.0.0.0.255#. acl number 2000 Rule 5 permit source 10.0.13.0.0.0.0.255#. acl number 2000 Rule 5 permit source 10.0.12.1.0.0.0.0#. acl number 2000 Rule 5 permit source 10.0.13.1.0.0.0.0.

As shown in the figure below, what kind of network equipment can host A and host B use to communicate? () (Single-choice question). Layer 2 switch. Hub. router. HUB.

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). Router B. Router D. Router A. Router C.

As shown in the figure, host A and host B want to implement inter-VLAN communication through single-arm routing. What configuration should be done under the G0/0/1.1 interface of RTA?()(Single-choice question). dotlg termination vid 1. dotlq termination vid 10. dotlq termination vid 20. dotlq termination vid 30.

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). time-range am9 to pm5 08:00 to 17:00 working-day # Ac1 number 2003 Rule 5 deny time-range am9 to pm560 H12-811HCIA-Datacom655 new question bank#. time-range am9 to pm5 08:00 to 17:00 daily # Acl number 2001 Rule 5 deny time-range am9 to pm5 #. time-range am9 to pm5 07:00 to 18:00 daily # Acl number 2002 Rule 5 permit time-range am9 topm5 #. time-range am9 to pm5 08:00 to 17:00 off-day # Acl number 2004 Rule 5 permit time-range am9 to pm5.

Regarding the configuration shown in the figure, which statement is correct? () (Single-choice question). history-command max-size20 is to adjust the size of the history named cache to 20. The default size of the history command cache is 5 bytes. After the above configuration is completed, the history command buffer can store 20 bytes of commands. The default size of the history command cache is 5m5.

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). 1. 2. 4. 3.

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). ip route-static10.0.2.2255.255.255.25510.0.12.2 Ip route-static10.0.2.2255.255.255.25510.0.21.2 preference 40. ip route-static10.0.2.2255.255.255.25510.0.12.2 Ip route-static10.0.2.2255.255.255.25510.0.21.2. ip route-static10.0.2.2255.255.255.25510.0.12.2 preference 70 Ip route.-static10.0.2.2255.255.255.25510.0.21.2. ip route-static10.0.2.2255.255.255.25510.0.12.2 Ip route-static10.0.2.2255.255.255.25510.0.21.2 preference 70.

In the network shown in the figure below, the switch uses VLANIF interfaces to connect with the router sub-interfaces. Which of the following configurations can achieve this requirement? (Single-choice question). interface Vlanif10 Ip address10.0.12.1255.255.255.0 # Interface GigabitEthernet 0/0/2 Port link-type trunk Port trunk pvid 10 Port trunk allow-pass vlan 10 #. interface Vlanif10 Ip address10.0.12.1255.255.255.0# Interface GigabitEthernet 0/0/2 Port link-type trunk Port trunk allow-pass vlan 10#. interface Vlanif10 Ip address10.0.12.1255.255.255.0# Interface GigabitEthernet 0/0/267 Port link-type hybrid Port hybrid untag vlan 10 #. interface Vlanif10 Ip address10.0.12.1255.255.255.0# Interface GigabitEthernet 0/0/2 Port link-type access Port default vlan 10.

As shown in the figure, is the description of this network topology correct? () (Single-choice question). There are 6 broadcast domains in this network. There are 12 conflict domains in this network. There are 6 conflict domains in this network. There are 2 broadcast domains in this network.

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. 172.18.0.0/16. 172.16.1.0/24. 192.17.0.0/24. 172.16.1.1/24.

The topology shown in the figure and the configuration on the interconnection ports of the switch. Can it be judged that the data frame tagged as VLAN10 can be forwarded normally between the two switches? ()(True or False) (LSW1) interface GigabitEthernet 0/0/1 (LSW1-GigabitEthernet0/0/1) port link-type trunk (LSW1-GigabitEthernet0/0/1) port trunk pvid vlan 20 (LSW1-GigabitEthernet0/0/1) port trunk allow-passvlan 10 # (LSW2) interface GigabitEthernet 0/0/1 (LSW2-GigabitEthernet0/0/1) port link-type trunk (LSW2-GigabitEthernet0/0/1 port trunk pvid vlan 10 (LSW2-GigabitEthernet0/0/1) port trunk allow-passvlan 10. True. False.

The MAC address table of existing switches is shown in the figure. Which of the following statements are correct? () (Single-choice question) Huaweidisplay 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. The MAC address 5489-9811-0b49 is manually configured by the administrator. After the switch restarts, all MAC addresses need to be relearned. The MAC address 5489-989d-1d30 is manually configured by the administrator. The MAC address 5489-9885-18a8 is manually configured by the administrator.

In the broadcast network as shown in the figure, 0SPF runs on four routers. And in the same area. The same network segment. SPF will automatically elect one DR and multiple BDRs to achieve a better backup effect. ()(True or False). True. False.

As shown in the figure below. Which network device can host A and host B use to achieve communication? () (Single-choice question). HUB. Hub. Layer 2 switch. router.

The network shown in the figure below. The router receives a data packet with a destination IP address of 11.0.12.1 from hostA. After this data is forwarded by the router, what are the destination MAC and destination IP? )(Single-choice question). MAC-C.11.0.12.1. MAC-B.11.0.12.1. MAC-D.10.0.12.2. MAC-D.11.0.12.1.

The network structure and OSPF partition are shown in the figure. Except for RTA in the figure, the routers RTB, RTC and RTD are all ABR routers. ()(True or False). True. False.

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?. Full. 2-way. Attempt. Down.

In the network shown in the figure below, switch A and router A are connected by two links, and the two links are aggregated in manual load sharing mode. The aggregated port number is 1, and the aggregated link performs data forwarding It needs to carry VLAN TAG100, and switch A uses trunk link. Which of the following configurations should be used for switch A? (). interface Eth-Trunk 1 Port link-type trunk Port trunk allow-pass vlan 100# Interface GigabitEthernet0/0/1Eth-trunk 1 # Interface GigabitEthernet0/0/2Eth-trunk 1 #. interface Vlanif 100 Ip address10.0.12.1255.255.255.0 #. interface Eth-Trunk 1 Ip address10.0.12.1255.255.255.0#. interface Eth-Trunk 1 Mode lacp-static Port link-type trunk Port trunk allow-pass vlan 100# Interface GigabitEthernet0/0/1Eth-trunk 1 # Interface GigabitEthernet0/0/2Eth-trunk 1 #.

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) Huaweidisplay stp interface Ethernet 0/0/1 CIST Global InfoMode 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. Forward-delay is 20s. Configure the MaxAge of the BPDU to 20s. The period for sending configuration BPDUs on this port is 2s. The switch is not a root bridge.

As shown in the figure. All four switches are running $TP. Various parameters are set to default values. If the GO/0/2 port of switch C is blocked and cannot send configuration BPDUs through this port, how long will it take for the blocked port in the network to enter the forwarding state? () (Single-choice question). About 30 seconds. About 50 seconds. About 15 seconds. About 3 seconds.

Complete the ACL configuration shown in the figure on the router RTA. Which of the following descriptions is correct? () (Single-choice question) (RTA) acl 2001 (RTA-acl-basic-2001) rule 20 permit source 20.1.1.0 0.0.0.255 RTA-acl-basic-2001rule 10 deny source 20.1.1.0 0.0.0.255. The VRP system will adjust the sequence number of the first rule to 5 according to the configuration sequence. The VRP system will not adjust the sequence number, but will first match the rule permit source 20.1.1.00.0.0.255. The VRP system will first match the rule deny source20.1.1.00.0.0.255 according to the sequence number. The sequence number of configuration error rules must be configured from small to large.

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). MAC-C,11.0.12.1. MAC-B.11.0.12.1. MAC-A.11.0.12.1. MAC-C.10.0.12.2.

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). True. False.

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 domain with the domain name huawei does not use the billing plan. Use the username huawei for authentication. The password needs to be 654321. The authentication method adopted for the domain with the domain name huawei is local authentication. The authorization method for the domain with the domain name huawei is local authorization.

The network shown in the figure below. Which router is the BDR in this network? () (Single-choice question). Router A. Router B. No BDR. Router C.

The output information of the router is shown in the figure. Which of the following statements is wrong? () (Single-choice question). The MTU value of the Ethernet0/0/0 interface is 1480. The broadcast address corresponding to the Ethernet0/0/0 interface is 10.0.12.255. The physical link of the Ethernet0/0/0 interface is normal. Ethernet (The IP address of the /0/0 interface is 10.0.12.1/24.

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). True. False.

The following two configuration commands can realize the master and backup backup of the router RIA to the same destination 10.1.1.0. True. False.

The MAC address table of existing switches is shown in the figure. Which of the following statements are correct? () (Single-choice question). Received a data frame with a source MAC address of 5489-9811-0b49 and a destination MAC address of 5489-989d1d30 from the port. Forwarded from the Eth0/0/2 port. The data frame with the source MAC address of 5489-9885-18a8 and the destination MAC address of 5489-989d-1d30 is received from the port. It is forwarded from the Eth0/0/1 port. When the switch restarts, the MAC address learned by port Eth0/0/2 does not need to be relearned. When the switch restarts, the MAC address learned by port Eth0/0/2 does not need to be relearned.

The two switches shown in the figure below have both enabled the STP protocol, which port will eventually be in the Blocking state? (). G0/0/2 terminal C of STB. STB's G0/0/3 port. G0/0/2 port of STA. G0/0/3 port of STA.

The MAC address table of existing switches is shown in the figure. Which of the following statements are correct? () (Single-choice question). The MAC address 5489-9811-0b49 is manually configured by the administrator. The MAC address 5489-989d-1d30 is manually configured by the administrator. After the switch restarts, all MAC addresses need to be relearned. The MAC address 5489-9885-18a8 is manually configured by the administrator. The MAC address 5489-9885-18a8 is manually configured by the administrator.

The switch GE0/0/1 port configuration information is shown in the figure. Which VLAN data frame does the switch not carry when forwarding?(). 40. 10. 20. 30.

The network shown in the figure below. Two switches are connected by four links. COPPER refers to electrical interface and FIBER refers to optical interface. Then which two interfaces can realize link aggregation? () (Single-choice question). G0/0/2 and FE0/0/3. G0/0/3 and FE0/0/3. G0/0/2 and G0/0/1. G0/0/3 and G0/0/2.

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?. rule 5 permit ip ARule 10 deny top destination-port eq ww#. acl number 3003 Rule 5 permit ip Rule 10 deny udp destination-port eq ww#. acl number 3001 Rule 5 deny udp destination-port eq ww Rule 10 permit ip #. acl number 3000 Rule 5 deny tcp destination-port eq www Rule 10 permit ip #.

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). lease day 0 hour 10. lease 24. dhcp select relay. lease.

When a company's network management needs to plan the network, the data packets that allow PC1 to access PC2 go through the G0/0/0 port (G0/0/2 on the picture). The data packet that PC2 accesses to PC1 goes from port G0/0/4 (G0/0/0 in the picture). () (Single-choice question). 10.0.12.5 255.255.255.255 11.0.12.6 #10.0.12.1 255.255.255.255 11.0.12.1. 10.0.12.5 255.255.255.255 11.0.12.2 10.0.12.1 255.255.255.255 11.0.12.5. 0.0.0.0 0.0.0.00 #11.0.12.6 #11.0.12.1. 0.0.0.0 #0.0.0.0 #11.0.12.2 #11.0.12.5.

Two switches use manual link aggregation at the same time. The following statement is wrong. () (Single-choice question). Only switch off G0/0/2 port on switch B. The Eth-Trunk status is still UP. Turn off the G0/0/1 and G0/0/2 ports on switch B, and the Efh-Trunk status is still UP. Only switch off G0/0/1 port on switch B. The Eth-Trunk status is still UP. Turn off the G0/0/1 and G0/0/2 ports on switch B. The Eth-Trunk status is down.

As (Single-choice question). Router A. Router B. Router C. Router D.

Which of the following network parameters can be assigned by Dynamic Host Configuration Protocol DHCP? ()*. IP address. Gateway address. Operating system name. DNS address.

As shown in the following figure, in the switching network, all switches are running the stp protocol. When the topology is stable, which of the following switches can be used to modify the BPDU sending cycle. Can it affect the SWD configuration BPDU sending cycle? () (Single-choice question). SWB. SWA. SWC. SWD.

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). MAC-AG0/0/2 MAC-BG0/0/2 MAC-CG0/0/3. MAC-AG0/0/1 MAC-BG0/0/2 MAC-CG0/0/1. MAC-A--GO/0/1 MAC-B--G0/0/1 MAC-C--GO/0/3. MAC-A--GO/0/1 MAC-B-G0/0/2 MAC-C-GO/0/3.

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). True. False.

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). SWA is the root bridge in the simple network. The two ports on SWA are designated ports and are in the forwarding state. G0/0/2 of SWA is blocked. G0/0/1 of SWC is alternative. It is in blocking state.

As shown in the figure, it can be judged that 00e0-fc99-9999 is the specific host and MAC address learned by the switch through ARP. And the host has changed its IP address three times? () (Single-choice question) 10.137.217.210 00e0-fc01-0203 E1/0/0 10.2.2.1 00e0-fc99-9999 Eth-Trunk 1 192.168.20.1 00e0-fc99-9999 vlan100 10.0.0.1 00e0-fc99-9999 vlan200. True. False.

How to deal with the data frame sent by the Trunki port? (). When the VLAN ID. is the same as the PVID of the port and is a VLAN ID that the port allows to pass through, remove the Tag and send the message. When the VLAN ID is different from the PVID of the port, the data frame is discarded. When the VLAN ID. is different from the PVID of the port, replace it with PVID. Forward. When the VLAN ID. is different from the PVID of Jingkou, the TAG is stripped and forwarded.

How many bits are there in the VLAN ID in the VLAN format defined by IEEE802.1Q? (). 12. 6. 10. 8.

All ports on the root bridge exchange machine are designated ends (). True. False.

Among the configuration BPDUs sent by the switch, which bridge D. is unlikely to appear? (). 819200-01-02-03-04-CC. 409600-01-02-03-04-CC. 000-01-02-03-04-CC. 204800-01-02-03-04-CC.

The number of VLANs that can be created using the commands "vlan batch1020 and "vlan batch 10 to 20" respectively is (). 11 and 11. 11 and 2. 2 and 2. 2 and 11.

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? (). time-range am9topm5 08:00 to working-day Acl number 2003 rule 5 deny time-range am9topjni5. time-range am9topm5 08:00 to 17:00 off-day acl number 2004 rule 5 permit timerange. time-range am9topm5 08:00 to 17:00 daily acl number 2001 rule 5 deny time-range am9topm5. time-range am9topm5 07:00 to 18:00 daily Acl number 2002.

By default, the root path cost of the root bridge in the STP protocol must be 0 (). True. False.

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 trafficfilteroutbounD.ac12000. The host whose source IP address is 200.0.12.4 cannot access the Internet. The host whose source IP address is 200.0.12.2 cannot access the Internet. The host whose source IP address is 200.0.12.8 cannot access the Internet. The host whose source IP address is 200.0.12.6 cannot access the Internet.

At what percentage does the DHCP client send the lease renewal message for the first time? (). 0.5. 0.875. 1. 0.25.

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 (). True. False.

After the administrator successfully logs in to the router through Telnet, it is found that the router's interface P address cannot be allocated, then the possible reasons are (). Telnet user level configurationB. False. SNMP parameter configurationB. False. Telnet user authentication mode configurationB. False. The administrator uses the telnet terminal software to prohibit the corresponding operation.

In an IPv4 network, AP supports static and DHCP methods to obtain IP addresses. (). True. False.

The vty distribution responsibility is shown in the figure, and the user authority level is set to level 3. () Huaveiuser-interface vty o 14 Huavei-ul-vtyo-14acl 200o inbound Huavei-ui-vtyo-14JuserHuavei-ui-vtyo-14authentication-node passworD. Please Configure the login privilegelevel 3 passvord (maxiu length 16): huavei. True. False.

What is the maximum negotiation rate supported by the IEEE802.11g standard? (). 300Mbps. 150Mbps. 54Kbps. 1200Mbps.

Which of the following SNMP packets are sent to the NMS by the Agent on the managed device (). Set-Request. Get-Request. Get-Next-Request. Response.

What is the corresponding Solicited.-node multicast address for IPv6 iAilt2019::8:AB.? (). FF02:1:FF20:19. FF02:1:FE08:AB. FF02:FF08:AB. FF02:1:FF08:AB.

Compared with the IPv4 packet header, which field is added to the IPv6 packet? (). Destination Address. Flow Label. Version. Source Address.

Telnet is a module that implements the Telnet protocol that comes with Python (). True. False.

Using the command mkdirtest in the VRP operating platform, the system will create a directory named test. (). True. False.

There are multiple route entries to the same destination network in the routing table. These routes are called? (). Suboptimal routing. Multipath routing. Default route. Equal cost routing.

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. (). True. False.

Which of the following cannot be the length of the IPv4 packet header? (). 32B. 60B. 20B. 64B.

What is the priority value of the direct route entry? (). 0. 30. 10. 20.

"The network administrator created VLAN 10 on the Layer 3 switch and configured an IP address under the virtual interface of the VLAN. When using the command "display ip interface brief to view the port status, and found that the VLANIF10 interface is in the dow state, what should be done? Operation to restore the VLANIF10 interface to normal? (). Assign an interface that must be Up and must be of type Trunk into VLAN 10. Assign any physical interface to VLAN10. Assign a physical interface that must be Up to VLAN 10. Use the command "undo shutdown" under the VLANIF10 interface.

The configuration information of a certain port of the switch is shown in the figure. Which of the following statements is wrong? () interface GigabitEthernet0/0/1 port link type trunk port trunk pviD.vlan 200 port trunk allow-pass vlan100#. If the VLAN TAG carried in the data frame is 100, the switch will strip off the VLAN TAG and send it out. This port cannot send data frames carrying VLAN TAG200. The port type is Trunk type. If the port receives a data frame without VLAN TAG, the switch needs to add VLAN TAG 200.

AAA. Which of the following is not included? (). Authentication. Accounting. Authorization. Audit.

Which of the following statements about Prefix Segment is wrong? (). Prefix Segment spreads to other network elements through the IGP protocol, which is globally visible and effective. Prefix Segment needs to be configured manually. Prefix Segment is used to identify a destination address prefix in the network (Prefix). Prefix Segment can be automatically allocated by IGP.

In the OSI reference model, what can complete end-to-end error detection and flow control is (). Physical layer. data link layer. Network layer. Transport layer.

In the MAC address table of the switch, which of the following entries will not age? (). Dynamic MAC. Address table entry. Static MAC. Address table entry. Port MAC. Address table entry. Device MAC. Address table entry.

What is the function of the command port trunk allow pass vlan all? (). If the port default vlan3 command is configured for the connected remote device, VLAN3 cannot communicate between the two devices. All VLAN data frames are allowed to pass through this port. The connected peer device can dynamically determine which VLAN IDs are allowed. The opposite port connected to the port must be configured with port trunk permit vlan all at the same time.

The Hybri D port can be connected to the user host or other switches. (). True. False.

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. (). True. False.

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 address pool of the DHCP server has all been allocated. Some hosts cannot communicate with the DHCP server normally, and the client systems of these hosts automatically generate addresses in the range of 169.2540.0. There is another DHCP server that works more efficiently in the network. Some hosts cannot communicate with the DHCP server normally, and the client systems of these hosts automatically generate addresses in the range of 127.254.0.0.

You can manually specify the source address or source interface of the CAPWAP tunnel on the AC. (). True. False.

AC. Use CAPWAP control tunnel to transmit management messages to FIT AP. (). True. False.

What identifies the coverage area of an AP in a WLAN? (). BSS. SSID. BSSID. ESS.

FIT AP can work independently without relying on AC. (). True. False.

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? (). trap message. get-response message. set-request message. get-request message.

Which field of the Pv6 packet header can be used for Q0s? (). Version. Next Header. TraffiC Class. PayloaD Length.

Which category does the IPv6 address FE80:2E0:FCFF:FE6F:4F36 belong to? (). Multicast address. Link local address. Global semicast address. Anycast address.

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. (). True. False.

Which of the following IEEE802.11 standards only supports the 2.4GHz frequency band for communication? (). 802.11a. 802.11g. 802.11ax. 802.11n.

The MPLS label header is encapsulated between the data link layer header and the network layer header of the message. (). True. False.

The network management system can only view the operating status of the device through the SNMP protocol, but cannot issue the configuration (). True. False.