Quiz
Examen de Practica Certificicacion HCIA-21-811
Dieses Quiz hat ein Zeitlimit und öffnet sich deshalb im gewohnten Player.
Fragen in diesem Quiz (158)
1In the campus network planning, which of the following ways can business VLAN be divided?
- AA. Divide VLAN by geographical area
- BB. Divide VLAN by logical area
- CC. Divide VLAN by business
- DD. Divide vlan by access member structure
2By default, the bridge priority of Huawei switches is 32768.
- AA. False
- BB. True
3What is the total length of the VLAN frame format defined by IEEE802.1Q?
- AA. 3
- BB. 4
- CC. 2
- DD. 1
4As shown in the figure, if host A and host B want to achieve inter-VLAN communication through single-arm routing, which configuration should be done under the G0/0/1.1 interface of RTA?
- A
- BA. dot1q termination vid 20
- CB. dot1q termination vid 10
- DC. dot1q termination vid 30
- ED. dot1q termination vid 40
- A
5The DHCPv6 server supports providing other configuration information such as DNS server address for the host
- AA. True
- BB. False
6In the network shown in the figure below, the bridge ID of the switch has been marked. Enter the command stp root secondary on the SWD switch, and which of the following switch will become the root bridge of this network?
- AA. SWA
- BB. SWC
- CC. SWD
- DD. SWB
7PPPoE session can only use CHAP authentication
- AA. True
- BB. False
8The router Radius information configuration is shown in the figure. Which of the following statement is correct? (Multiple Choice)
- AA. The IP address of the authorization server is 200.0.12.1
- BB. The IP address of the authentication server is 200.0.12.1
- CC. The IP address of the accounting server is 200.0.12.1
- DD. The source IP source address of the Radius packet sent by the router is 200.0.12.2
9Which version of the SNMP protocol below supports encryption features?
- AA. SNMPv1
- BB. SNMPv2
- CC. SNMPv3
- DD. SNMPv2c
10The Layer 2 switch is a 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.
- AA. False
- BB. True
11After the system restarts the static MAC address table, the saved entries will not be lost.
- AA. False
- BB. True
12In 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?
- AA. 1
- BB. 4
- CC. 2
- DD. 3
13On the broadcast network, both DR and BDR use the multicast address 224.0.0.6 to receive link state update messages
- AA. False
- BB. True
14Which of the following statement about the TTL field in the IP packet header is correct?
- AA. Each time an IP packet passes through a router, its TTL value will be increased by 1
- BB. TTL defines the time interval at which the source host can send data packets
- CC. Every time an IP packet passes through a router, its TTL value will be reduced by 1
- DD. TTL defines the number of packets that the source host can send
15In the network shown in the figure, the administrator hopes that all hosts cannot access the web service (the port number is 80), and other services are normally accessed, so in the interface configuration of G0/0/1, traffic-filtar outbound needs to define which ACL rule?
- AA. acl number 3000 rule 5 deny tcp destination-port eq www rule 10 permit ip #
- BB. acl number 3003 rule 5 permit ip rule 10 deny udp destination-port eq www #
- CC. acl number 3001 rule 5 deny udp destination-port eq www rule 10 permit ip #
- DD. acl number 3002 rule 5 permit ip rule 10 deny tcp destination-port eq www #
16If the Ethernet data frame Length/Type=0X0806, which of the following statement is correct? (Multiple choice)
- AA. The source MAC address of the data frame must not be FFFF-FFFF-FFFF
- BB. The destination MAC address of the data frame may be FFFF-FFFF-FFFF
- CC. The data frame is an IEEE 802.3 frame
- DD. The data frame is an Ethernet II frame
17In the network shown in the figure below, all routers run OSPF protocol, which device is ABR? (Multiple choice)
- AA. Router D
- BB. Router C
- CC. Router A
- DD. Router B
18As shown in the figure below, which of the following statements are correct?
- AA. The following entry 10.0.12.5 MAC-B exists in the ARP cache of host A
- BB. Host A and Host B cannot obtain each other's MAC address
- CC. The broadcast address of host A and host B are the same
- DD. Host A can ping host B
19The number of VLANs that can be created using the commands "vlan batch 10 20" and "vlan batch 10 to 20" respectively is
- AA. 2 and 2
- BB. 2 and 11
- CC. 11 and 2
- DD. 11 and 11
20After the network administrator uses the TracertRoute function on the router device, in the data packet sent by the router, what is the value of the Protoco1 field in the IPv4 header?
- AA. 1
- BB. 17
- CC. 2
- DD. 6
21Two authentication domains "Area1" and "Area 2" are configured on a router acting as an authentication server. If the user authenticates with the correct user name "huawei" and password "hello", this user will be assigned In which authentication domain?
- AA. Authentication domain "default_admin domain"
- BB. Authentication domain "Area2"
- CC. Authentication domain "default domain"
- DD. Authentication domain "Area 1"
22On the VRP operating platform, what is the command to display the current interface configuration in the interface view?
- AA. display version
- BB. display ip interface brief
- CC. display users
- DD. display this
23According to the command shown in the figure, which of the following description is correct? (Multiple choice )
- AA. The PVID of GigabitEthernet0/0/1 port is 10
- BB. The PVID of GigabitEthernet0/0/1 port is 11
- CC. The PVID of GigabitEthernet0/0/2 port is 10
- DD. The PVID of GigabitEthernet0/0/2 port is 1
24Which planes of the following does a network device have? (Multiple choice)
- AA. Control plane
- BB. Management plane
- CC. Data plane
- DD. Business plane
25The administrator wants all hosts to be unable to access the Internet between 8:00-17:00 every day, so which ACL rule needs to be bound to the traffic-filter outbound in the GO/0/1 interface allocation?
- AA. time-range am9topm5 08:00 to working-day Acl number 2003 rule 5 deny time-range am9topjni5
- BB. time-range am9topm5 08:00 to 17:00 off-day # acl number 2004 rule 5 permit time-range
- CC. time-range am9topm5 08:00 to 17:00 daily acl number 2001 rule 5 deny time-range am9topm5
- DD. time-range am9topm5 07:00 to 18:00 daily Acl number 2002
26After the administrator successfully logs in to the router through Telnet, and finds that the router's interface IP address cannot be allocated, the possible reasons are ()
- AA. SNMP parameter is incorrectly configured
- BB. The Telnet user level is incorrectly configured
- CC. The Telnet user authentication mode is incorrectly configured
- DD. The administrator uses the telnet terminal software to prohibit the corresponding operation
27In the history of WLAN development, which of the following is not included in the main wireless protocol standards in the primary mobile office era?
- A802.11ac
- B802.11g
- C802.11a
- D802.11b
28Which of the following statements about the default route are correct? (Multiple Choice)
- AA. The default route can only be manually configured by the administrator
- BB. There must be a default route in the routing table of any router
- CC. If the destination address of the message cannot match any other routing entries in the routing table, the router will forward the message according to the default route
- DD. In the routing table, the default route appears as a route to the network 0.0.0.0 (the mask is also 0.0.0.0)
29Which of the following descriptions about spanning tree designated ports is correct?
- AA. Each switch has only one designated port.
- BB. The designated port can forward configuration BPDU messages to the network segment connected to it
- CC. The port on the root switch must be a designated port.
- DD. The port on the root switch must not be a designated port.
30In the broadcast network as shown in the figure, OSPF runs on four routers in the same area and on the same network segment. OSPF will automatically elect one DR and multiple BDRs to achieve better backup results
- AA. TRUE
- BB. FALSE
31Which of the following IPv6 addresses is a multicast address?
- AA. 2000 :: 2E0 : FCFF : FEEF : FEC
- BB. FF02 :: 2E0 : FCFF : FEEF : FEC
- CC. FC00 :: 2E0 : FCFF : FEEF : FEC
- DD. FE80 :: 2E0 : FCFF : FEEF : FEC
32The bridge ID of the STP protocol in the switching network is as follows. Which of the following bridge ID switches will become the root bridge?
- AA. 32768 00-01-02-03-04-AA
- BB. 4096 00-01-02-03-04-DD
- CC. 32768 00-01-02-03-04-CC
- DD. 32768 00-01-02-03-04-BB
33If the MAC address of an interface is 0OEO-FCEF-OFEC, what is its corresponding EUI-64 address?
- AA. 00EO-FCFF-FEEF-0FEC
- BB. 02EO-FCEF-FFFE-0FEC
- CC. 02EO-FCFF-FEEF-0FEC
- DD. 00EO-FCEF-FFFE-OFEC
34If the Proto of a route information in the routing table is OSPF, the priority of this route must be 10.
- AA. TRUE
- BB. FALSE
35In order to realize the network layer function on VLANIF interface, what need to be configured on VLANIF interface? (Multiple choice)
- AA. IP address
- BB. Subnet mask
- CC. IP prefix
- DD. MAC address
36The following rules exist in a certain ACL of the router. rule deny tcp source 192.168.1.0
0.0.0.255 destination 172.16.10.1 0.0.0.0 destination-port eq 21 Which statement is correct?- AA. The type of ACL is a basic ACL
- BB. The source IP is 192.168.1.1, the destination IP is 172.16.10.1, and all TCP packets whose destination port number is 21 match this rule
- CC. The source IP is 192.168.1.1, the destination IP is 172.16.10.2, and all 1CP packets whose destination port number is 21 match this one
- DD. The source IP of the rule is 192.168.1.1, the destination IP is 72.16.10.3. All TCP packets with the destination port number of 21 match this rule
37Which of the following IPv6 is a global unicast address?
- AA. FF::02::2E0:FCFF:FEEF:FEC
- BB. 2001::12:1
- CC. FEE:FCFF:FEEF:FEC
- DD. FF02::1
38If the transport layer protocol is UDP, the value of the network layer Protocol field is 6
- AA. FALSE
- BB. TRUE
39The two switches shown in the figure below have both enabled the STP protocol. Which port will eventually be in the Blocking state?
- AA. G0/0/3 port of SWB
- BB. G0/0/3 port of SWA
- CC. G0/0/2 port of SWA
- DD. G0/0/2 port of SWB
40What is the maximum negotiation rate supported by the IEEE 802.11g standard?
- AA. 1200Mbps
- BB. 54KBPS
- CC. 150Mbps
- DD. 300Mbps
41The configuration information of a interface of the router is shown in the figure, then which VILAN data packet can this port receive?
interface Gigabit Ethernet 0/0/2.30
dot1q terainat1on vid 100
ip address 10.0.21.1 255.255.255.0
arp broadcast enable- AA. 1
- BB. 30
- CC. 100
- DD. 20
42Which field is added to the IPv6 packet header than the IPv4 packet header?
- AA. Version
- BB. Destination Address
- CC. Flow Label
- DD. Source Address
43Network equipment running the SNMP protocol can take the initiative to report alarm information so that the network administrator can discover the fault in time.
- AA. FALSE
- BB. TRUE
44In 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 ( ).
- AA. Root port
- BB. Fast port
- CC. Edge port
- DD. Backup port
45The MAC address table of a certain switch is shown in the figure. If the switch receives a data frame with a destination MIAC of 5489-9885-18a8 from port Eth0/0/2, which of the following statements is correct?
- AA. Forward this data frame from the Eth0/0/2 port
- BB. Discard this data frame
- CC. Forward this data frame from Eth0/0/1 port
- DD. Flood this data frame
46If the Protocols of a certain route information in the routing table is Direct, the priority of this route is set to 0.
- AA. FALSE
- BB, TRUE
47IPv6 address 2001: ABEF: 2240E: FFE2: BCC0: CD0: DDBE: 8D58 cannot be abbreviated.
- AA . FALSE
- BB. TRUE
48The output information of a switch is shown in the figure. Which of the following interfaces can forward data frames with VLAN ID 40 and do not carry tags when forwarding?
- AA. GE0/0/4
- BB. GE0/0/2
- CC. GE0/0/3
- DD. GE0/0/5
49Connection between switches and hosts, which port link type is often used by the switch?
- AA. Trunk link
- BB. Access link
- CC. Hybrid link
- DD. Trunk link
50The picture shows the display startup information of AR2200 router. Regarding these information, which of the following statement is wrong?
- AA. The system file cannot be modified when the device is started next time
- BB. next system startup file system can use the command "startup system software <startup- software-name>" to modify
- CC. The system file used by the device this time is ar2220-v200r003c00spc00.cc
- DD. The running configuration file is not saved
51As the figure shown: (Multiple Choice)
- AA. Client3 belongs to VLAN30, and the command for dividing VLAN on the switch is correct
- BB. Client4 belongs to VLAN40, and the command for dividing VLAN on the switch is correct
- CC. Client2 belongs to VLAN20, and the switch based on the MAC address division command is correct
- DD. Client1 belongs to VLAN10, and the command for dividing VLAN on the switch is correct
52Regarding the IPv6 address 2031:0000:720C:0000:0000:09E0:839A:130B, which of the following abbreviations is correct?
- AA .2031:0:720C::9E0:839A:130B
- BB. 2031:0:720C:0:0:9E:839A:130B
- CC. 2031:0:720C:0:0:9E0:839A:130B
- DD. 2031::720C::9E0:839A:130B
53Which of the following types of addresses is not included in IPv6 addresses?
- AA. Broadcast address
- BB. Anycast address
- CC. Multicast address
- DD. Unicast address
54On the AC, you can manually specify the source address or source interface of the CAPWAP tunnel.
- AA. True
- BB. False
55A network engineer prompts the following information when entering the command line:
Error: Unrecognized command found at ' ^ ' position. Which of the prompt information is correct?- AA. The input command is incomplete
- BB. Input command is not clear
- CC. No keyword found
- DD. Wrong parameter type
56In the network shown in the figure below, all routers run OSPF protocol. Above the link is the value of the Cost value, then the path for RTA to reach the network 10.0.0.0/8 is:
- AA. RTA cannot reach 10.0.0.0/8
- BB. A-D
- CC. A-C-D
- DD. A-B-D
57By default, how long is the lease period of the IP address assigned by the DHCP server?
- AA. 18h
- BB. 24h
- CC. 1h
- DD. 12h
58By default, network devices running SNMPv2c protocol use which of the following port numbers to send trap messages to the network management system?
- AA. 17
- BB. 162
- CC. 6
- DD. 161
59Which field of the ipv6 packet header can be used for QoS?
- AA. Traffic Class
- BB. Version
- CC. Next Header
- DD. Payload Length
60On the VRP platform, the default protocol priority of routes in the direct routing, static routing, RIP, OSPF area is:
- AA. Direct routing,Static routing,RIP,OSPF
- BB. Direct routing,OSPF,RIP,Static routing
- CC. Direct routing,OSPF,Static routing,RIP
- DD. Direct routing,RIP,Static routing,OSPF
61Neither the Alternate interface nor the Backup port in RSTP can forward user traffic, nor can they receive, process, and forward BPDUs.
- AA. FALSE
- BB. TRUE
62All ports on the root bridge switch are designated ports.
- AA. TRUE
- BB. FALSE
63A device has been configured to complete the Telnet configuration. The device login address is
10.1.1.10. The Telnet user name is admin and the password is Huawei@123. Which of the following is the correct way to log in to this device using telnetlib?- AA. telnetlib.Telnet （10.1.1.0 )
- BB. telnetlib.Telnet （10.1.1.0,23,admin,Huawei@123 )
- CC. telnetlib.Telnet （10.1.1.0,23, Huawei@123 )
- DD. telnetlib.Telnet （10.1.1.0,admin )
64When AP and AC are on different Layer 3 networks, what method is recommended for AP to discover AC? (Multiple Choice)
- AA. DHCP
- BB. Broadcasting method
- CC. Manually specified on AP
- DD. DNS
65How many types of data flows with different service levels can be marked based on MPLS labels?
- AA. 16
- BB. 8
- CC. 4
- DD. 2
66Which of the following statement about Python is incorrect?
- AA. Has a rich third-party library
- BB. Is a fully open source high-level programming language
- CC. can be used for operation and maintenance of automation scripts, Artificial Intelligence, Data science and many other fields
- DD. Have a clear grammatical structure, simple and easy to learn, colleagues run efficiently
67The second layer ACL can match the source MAC, destination MAC, source IP, destination IP and other information.
- AA. TRUE
- BB. FALSE
68What are the roles of OSPF protocol DR and BDR? (Multiple choice)
- AA. Reduce the time to establish adjacency
- BB. Reduce the number of exchanges of link state information.
- CC. Reduce the types of OSPF protocol packets
- DD. Reduce the number of adjacencies
69Which of the following statement about the transport layer protocol is correct? (Multiple choice)
- AA. The range of well-known port numbers is 0-1023
- BB. UDP is suitable for the transmission of delay-sensitive traffic, and can be reorganized according to the sequence number field in the message header
- CC. TCP establish a connection is a three-way handshake process, TCP terminates the connection will have to go through four-way handshake
- DD. UDP uses the STNOACK flag to request and confirm the establishment of a connection
70Which extension headers are supported by IPv6 packets? (Multiple choice)
- AA. VLAN extension header
- BB. Fragmentation extension header
- CC. Hop-by-hop option extension header
- DD. Destination option extension header
71Network shown below, Host A does not configure the gateway, the host B exists gateway ARP cache, which of the following statements are correct? (Multiple choice)
- AA. Enable ARP proxy on the GO/0/1 port of the router, then host A can communicate with host B
- BB. The data packet sent by host B with the destination IP address of 10.0.12.1 can be forwarded to host A
- CC. Host A and Host B cannot communicate in both directions
- DD. The data packet sent by host A with the destination IP address of 11.0.12.1 can be forwarded to host B
72If the value of the Type/Length field of an Ethernet data frame is 0 x 0800, the length of the upper layer message header carried by this data frame is in the range of 20-60B.
- AA. TRUE
- BB. FALSE
73What is the priority value of the direct route entry?
- AA. 20
- BB. 10
- CC. 0
- DD. 30
74Broadly speaking, which of the following does the transmission medium that constitutes the wireless local area network wlan not include?
- AA. Radio waves
- BB. Ray
- CC. Laser
- DD. Infrared
75<huawei>system-view
[huawei]command-privilege level 3 view user save
The correct statement about the above configuration command is:- AA. Modify the permission level of the save command in the user view to 3
- BB. Modify the permission level of the user view command to 3, and save the configuration
- CC. Modify the user's authority level to 3, and save the configuration
- DD. Modify the authority level of the save command used by a user to 3
76The router running the OSPF protocol can reach the FULL state after completing the LSDB synchronization.
- AA. TRUE
- BB. FALSE
77What is the data link layer MAC address of each VAP on the AP?
- AA. BSSID
- BB. BSS
- CC. SSID
- DD. ESS
78The output information of a certain device is shown in the figure. Which of the following statements is correct? (Multiple Choice)
<Huawe1>display interface G1gabitEthernet 0/0/0
G1gabi tEthernet0/0/0 current state : UP
Line protocol current state : UP
Route Port, The Maximum Transmit Unit is 1000 Internet Address is 10.0.12.2/2 4
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- AA. The IP address of the interface is 10.0.12.2/24
- BB. The MTU value of this interface is 1000
- CC. The working rate of this interface is 1Gbps
- DD. The MAC address of the interface is 00e0-fc22-4fff
79What elements can NAPT convert?
- AA. IP address + port number
- BB. Only MAC address
- CC. Only IP address
- DD. MAC address + port number
80What is the full name of the general routing platform VRP?
- AA. Versatile Routing Platform
- BB. Versatile Redundancy Platform
- CC. Virtual Routing Platform
- DD. Versatile Routing Protocol
81As shown in the figure below, router A has Telnet router B through IP address 10.0.12.2. In the current interface, which of the following operations will cause the Telnet session of Router A and Router B to be interrupted? (Multiple Choice)
- AA. Enable 0SPF protocol under G0/0/1 interface
- BB. Close G0/0/1 interface
- CC. Configure static routing
- DD. Modify the IP address of G0/0/1 interface
82Regarding the corresponding relationship between the access control list number and type, which of the following description is correct?
- AA. The number range of interface-based access control list is 1000-2000
- BB. The range of advanced access control list numbers is 3000-4000
- CC. The basic access control list number range is 1000-2999
- DD. The access control list number range of the second layer is 4000-4999
83The network devices running the SNMP protocol are running locally-an agent process
- AA. TRUE
- BB. FALSE
84Which of the following advantages does the router-on-a-stick approach achieve routing intercommunication between VLANs?
- AA. Reduce the use of IP addresses
- BB. Reduce the number of equipment
- CC. Reduce the number of chain connections
- DD. Reduce routing table entries
85On Huawei ARG3 series routers, what authentication modes does AAA support? (Multiple Choice)
- AA. 802.1x
- BB. HWTACACS
- CC. None
- DD. Local
86VRP operating system commands are divided into 4 levels: access level, Monitoring level, Configuration level, and Management level. Which level can run various business configuration commands but cannot operate the file system?
- AA. Management level
- BB. Access level
- CC. Configuration level
- DD. Monitoring level
87What is the value of TPID defined by IEEE802.1Q?
- AA. 0x9100
- BB. 0x8200
- CC. 0x7200
- D0x8100
88Among the following commands to configure the default route, which one is correct?
- AA. [Huawei] ip route-static 0.0.0.0 0.0.0.0 192.168.1.1
- BB. [Huawei-Seria10] ip route-static 0.0.0.0 0.0.0.0 0.0.0.0
- CC. [Huawei] ip route-static 0.0.0.0 0.0.0.0 0.0.0.0
- DD. [Huawei] ip route-static 0.0.0.0 255.255.255.255 192.168.1.1
89The management of users by NAS devices is based on domains. Each user belongs to a domain, and a domain is a group of users who belong to the same domain.
- AA. TRUE
- BB. FALSE
90Which fields in the IPv4 header are related to fragmentation? (Multiple Choice)
- AA. Fragment Offset
- BB. Flags
- CC. TTL
- DD. Identification
91How many types of OSPF messages are there?
- AA. 3
- BB. 4
- CC. 2
- DD. 5
92Which of the following descriptions about the switch is wrong?
- AA. The switch can provide network access services for terminal equipment (PC. Server)
- BB. Switches generally work at the data link layer
- CC. Switches are generally used as network export equipment
- DD. The switch can complete the exchange of data frames
93On the VRP platform, which of the following methods can be used to access the previous history commands?
- AA. Ctr1+P
- BB. Ctr1+U
- CC. Up cursor
- DD. Left cursor
94What is the range of VLAN ID that users can use?
- AA. 1-4096
- BB. 0-4096
- CC. 0-4095
- DD. 1-4094
95The subnet mask of a network segment 150.25.0.O is 255.255.224.0, then what is a valid host address in the network segment?
- AA. 150.15.3.30
- BB. 150.25.1.255
- CC. 150.25.2.24
- DD. 150.25.0.0
96The network management system can only view the operating status of the device through the SNMP protocol, but cannot issue configurations.
- AA. TRUE
- BB. FALSE
97Which of the following statements about Prefix Segment is wrong?
- AA. Prefix Segment can be automatically allocated by IGP
- BB. Prefix Segment spreads to other network elements through the IGP protocol, which is globally visible and effective
- CC. Prefix Segment is used to identify a destination address prefix in the network (Prefix)
- DD. Prefix Segment needs to be configured manually
98The 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 MAC port.
- AA. TRUE
- BB. FALSE
99As shown in the figure, the two switches use the default parameters to run STP, the configuration command STP root primary is used on switch A, and the configuration command STP priority 0 is used on switch B.
Then which port will be blocked?
- AA. HUB's G0/0/3
- BB. G0/0/2 of switch A
- CC. G0/0/1 of switch A
- DD. G0/0/1 of switch B
100There is no channel overlap in the 14 available frequency bands in the 2.4GHz frequency band.
- AA. TRUE
- BB. FALSE
101What is the length of the Ethernet_II frame containing the Ethernet header?
- AA. 64-1500B
- BB. 60-1560B
- CC. 64-1518B
- DD. 46-1500B
102How to add AP on AC? (Multiple Choice)
- AA. Manually confirm APs in the uncertified list
- BB. Automatically discover AP
- CC. Add online
- DD. Import AP offline
103In the configuration BPDU sent by the switch, which bridge ID is unlikely to appear?
- AA. 2048 00-01-02-03-04-CC
- BB. 8192 00-01-02-03-04-CC
- CC. 0 00-01-02-03-04-CC
- DD. 4096 00-01-02-03-04-CC
104As shown in the following figure, router A and router B establish an OSPF neighbor relationship. The OSPF process number of router A is 1, and the area number is 0. Which of the following configurations on router A can enable router B to obtain the network segment of host A routing? (Multiple choice)
- AA. ospf 1 Area 0.0.0.0 Network 192.168.1.2 0.0.0.0
- Bospf 1 Area 0.0.0.0 Network 192.168.1.0 0.0.0.255
- Cospf 1 Import-route direct
- Dospf 1 Area 0.0.0.0 Network 192.168.0.0 0.0.255.255
105AC uses CAPWAP control tunnel to transmit management messages to FIT AP.
- AA. TRUE
- BB. FALSE
106Which of the following statements about IPv6 multicast addresses are correct? (Multiple Choice)
- AA. Provide redundant functions for services
- BB. The packet whose destination address is a multicast address will be sent to the nearest network interface in the sense of routing
- CC. Multicast addresses and unicast addresses use the same address space
- DD. Realize load sharing of services
107Which of the following description of static and dynamic routing is wrong?
- AA. After the link fails, the static route can automatically complete the network convergence.
- BB. Dynamic routing protocols take up more system resources than static routing protocols.
- CC. Static routing is simple to configure and easy to manage when applied in the enterprise
- DD. After the administrator deploys the dynamic routing protocol in the corporate network, later maintenance and expansion can be more convenient
108VRP supports OSPF multi-process. If the process number is not specified when 0SPF is enabled, the process number used by default is ().
- AA. 0
- BB. 1
- CC. 100
- DD. 10
109What kind of message does the DHCP server use to confirm that the host can use the IP address?
- AA. DHCP OFFER
- BB. DHCP ACK
- CC. DHCP DISCOVER
- DD. DHCP REQUEST
110RADIUS is a common protocol to implement AAA.
- AA. TRUE
- BB. FALSE
111The information shown in the figure is the port status information displayed on a switch running STP. According to this information, which of the following description is wrong?
- AA. This switch may be connected to six other switches
- BB. This switch is the root switch in the network
- CC. The priority of this switch is 0
- DD. This network may only contain this switch
112The following two configuration commands can realize the router RTA to the same destination
10.1.1.0 routing master and backup backup.
【 RTA 】 ip route-static 10.1.1.0 24 12.1.1.1 permanent
【 RTA 】 ip route-static 10.2.2.0 24 13.1.1.1- AA. TRUE
- BB. FALSE
113Which of the following description about the Layer 2 Ethernet switch is incorrect?
- AA. Able to learn MAC address
- BB. It is necessary to make certain modifications to the layer 3 header of the forwarded message, and then forward it
- CC. Forward according to the Layer 2 header information of the Ethernet frame
- DD. Layer 2 Ethernet switches work at the data link layer
114Which of the following descriptions about Trunk port and Access port is correct?
- AA. Trunk port can only send tagged frames
- BB. Trunk port can only send untagged frames
- CC. Access port can only send tagged frames
- DD. Access port can only send untagged frames
115What frequency does IEEE 802.11n support? (Multiple Choice)
- AA. 2.5GHz
- BB. 5GHz
- CC. 2.4GHz
- DD. 6GHz
116The administrator plans to implement route backup by configuring static floating routes, what is the correct way to achieve this?
- AA. The administrator needs to configure different protocol priority values for the main static route and the standby static route
- BB. The administrator needs to configure different metric values for the main static route and the standby static route
- CC. The administrator needs to configure different TAGs for the main static route and the standby static route
- DD. The administrator only needs to configure two static routes
117The wireless access controller (AC, Access Controller) is the unified management and control device in the FIT AP architecture. Which of the following description of the role of AC is wrong?
- AA. AP configuration delivery
- BB. No matter when the data is forwarded, the user's data message will be forwarded by AC
- CC. User access control
- DD. User access authentication
118As shown in the figure, there is a web server in the private network that needs to provide HTTP services to public network users. Therefore, the network administrator needs to configure NAT on the gateway router RTA to achieve the requirements. Which of the following configuration can meet the requirement?
- AA. [RTA-Gigabitethernet0/0/1]nat server protocol tcp global 202.10.10.1 www inside 192.168.1.1 8080
- BB. RTA-Gigabitethernet0/0/1] nat server protocol tcp global 192.168.1.1 www inside 202.10.10.1 8080
- CC. [RTA-Serial1/0/1] nat server protocol tcp global 202.10.10.1 www inside 192.168.1.1 8080
- DD. [RTA-Seria11/0/1 ]nat server protocol tcp global 192.168.1.1 www inside 202.10.10.1 8080
119The Backup ports in RSTP may alternatively failed root port.
- AA. TRUE
- BB. FALSE
120A company has 50 private IP addresses. The administrator uses NAT technology to connect the company's network to the public network, but the company has only one public network address and is not fixed. Which of the following NAT conversion methods meets the needs?
- AA. easy-ip
- BB. Static NAT
- CC. NAPT
- DD. Basic NAT
121As shown in the figure, if host A has the ARP cache of host B, host A can ping host B.
- AA. TRUE
- BB. FALSE
122Before the STA associates with the AP, it needs to exchange some messages to obtain the SSID. What are these messages?
- AA. ResponseProbe Request
- BB. Probe
- CC. Discovery
- DD. Beacon
123Which of the following commands can be used to view the router's CPU usage?
- AA. display cpu-state
- BB. display interface
- CC. display cpu-usage
- DD. display memory
124In order to join the wireless network STA needs to obtain wireless network information first. Which of the following messages is used by the STA to actively obtain the SSID information?
- AA. Beacon
- BB. Probe
- CC. Discovery
- DD. Join
125What is the total length of the IPv6 address in bits?
- AA. 64
- BB. 96
- CC. 128
- DD. 32
126Which of the following statements about direct routing is correct?
- AA. Direct routing requires the administrator to manually configure the destination network and the next-hop address
- BB. Direct routing has the highest priority
- CC. Direct route priority is lower than dynamic route
- DD. Direct route has lower priority than static route
127What address does 192.168.1.127/25 represent?
- AA. Multicast
- BB. Host
- CC. Broadcast
- DD. Network
128The controller is the core component of SDN. The controller connects to the device through the southbound interface. Which of the following belong to the controller southbound protocol? (Multiple Choice)
- AA. PCEP
- BB. OpenFlow
- CC. SNMP
- DD. NETCONF
129The administrator wants to configure a hundred IP address on the G0/0/0 interface of the router, then which of the following addresses is correct?
- AA. 237.6.1.2/24
- BB. 192.168.10.112/30
- CC. 127.3.1.4/28
- DD. 145.4.2.55/26
130The 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.
- AA. TRUE
- BB. FALSE
131What kind of message does the OSPF protocol use to send LSA to neighbors?
- AA. LSA
- BB. LSACK
- CC. LSU
- DD. LSR
132If the Length/Type of an Ethernet data frame = 0x8100, which of the following statements is correct?
- AA. There must be an IP header in the upper layer of this data frame
- BB. This data frame must carry VLAN TAG
- CC. There must be a TCP header in the upper layer of this data frame
- DD. There must be a UDP header in the upper layer of this data frame
133In the VRP interface, use the command startup saved-configuration backup.cfg to configure the startup.cfg file for the next startup.
- AA. TRUE
- BB. FALSE
134In the STP protocol, which of the following factors will affect the election of the root switch? (Multiple choice)
- AA. Switch priority
- BB. Switch interface ID
- CC. The IP address of the switch
- DE. MAC address of the switch
135The two switches shown below have both enabled the STP protocol. An engineer made the following conclusions on this network. Which conclusions do you think are correct? (Multiple choice)
- AA. Both ports of SWB are designated ports
- BB. G0/0/2 port of SWB is stable in Forwarding state
- CC. Both ports of SWA are designated ports
- DD. The G0/0/2 port of SWA is stable in Forwarding state
- EE. The G0/0/3 port of SWA is stable in Forwarding state
136Through SR (Segment Routing), an explicit path can be easily defined. The nodes in the network only need to maintain the SegmentRouting information to cope with the real-time rapid development of the business. What are the following characteristics of Segment Routing? (Multiple choice)
- AA. Adopting source routing technology to provide the ability to quickly exchange text between the network and upper-layer applications
- BB. SR (Segment Routing) adopts IP forwarding, no additional maintenance is required for another label forwarding table
- CC. By extending the existing protocol (eg IGP), the existing network can better and smoothly evolve
- DD. Support the centralized control mode of the controller and the distributed control mode of the transponder at the same time, and provide a balance between centralized control and distributed control
137Static NAT can only achieve one-to-one mapping between private addresses and public addresses.
- AA. TRUE
- BB. FALSE
138What is the Solicited-node multicast address corresponding to IPv6 address 2019:: 8:AB?
- AA. FF02 :: 1 :: FF20 : 19
- BB. FF02 :: 1 :: FE08 : AB
- CC. FF02 :: 1 :: FF08 : AB
- DD. FF02 :: FF08 : AB
139The tracert diagnostic tool in Huawei routers is used to track the data forwarding path.
- AA. TRUE
- BB. FALSE
140Which of the following statements about IPv6 address configuration are correct? (Multiple Choice)
- AA. IPv6 address supports automatic configuration in multiple ways
- BB. IPv6 address can only be configured manually
- CC. IPv6 supports DHCPv6 for address configuration
- DD. IPv6 supports stateless automatic configuration
141The network administrator configures the Huawei router RTA as shown in the figure. If a user needs to be authenticated in the authentication domain "huawei", the correct description below is ().
[RTA]aaa
[RTA-aaa] domain Huawei
RTA-aaa-domain-huawei] authentication-s cheme aul [RTA-aaa-domain-huawei] authentication-scheme au2- AA. Will use "au2" authentication and will use "authentication-scheme au1" authentication
- BB. "authentication-scheme aul" authentication will be used, if "au1" is deleted, "au2" authentication will be used
- CC. Will use "authentication-scheme au2" authentication
- DD. "authentication-scheme au2" authentication will be used, if "au2" is registered, "aul" authentication will be used
142What are the network types supported by the OSPF protocol? (Multiple Choice)
- AA. Broadcast
- BB. Point-to-Point
- CC. Point-to-Multipoint
- DD. Non-Broadcast Multi-Access
143As shown in the figure, the correct description of this network topology is ().
- AA. There are 2 broadcast domains in this network
- BB. There are 6 broadcast domains in this network
- CC. There are 6 collision domains in this network
- DD. There are 12 conflict domains in this network
144The following statements about the election of active ports in link aggregation LACP mode. Which is correct?
- AA. Compare the priority of the interface first, and it is impossible to determine the better one to continue to compare the interface number, the smaller the better.
- BB. Only compare interface numbers
- CC. Compare device priority
- DD. Only compare interface priority
145Which of the following OSPF protocol packets can ensure the reliability of LSA updates?
- AA. LSR
- BB. DD
- CC. LSACK
- DD. LSU
146An 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 what is the role of the port?
- AA. Alternate port
- BB. Designated port
- CC. Root port
- DD. Disable port
147In 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. Which of the following two interfaces can achieve link aggregation?
- AA. G0/0/3 and FE0/0/3
- BB. G0/0/3 and G0/0/1
- CC. G0/0/2 and FE0/0/3
- DD. G0/0/2 and G0/0/1
148Which of the following levels is not a common network level in mid-sized campus network architecture?
- AA. Access layer
- BB. Network layer
- CC. Core layer
- DD. Convergence layer
149Which of the following information prompts will the VRP operating platform use for incomplete input commands?
- AA. Error :Incomplete command found at' position
- BB. Error: Wrong parameter found at 'position
- CC. Error: Too many parameters found at' position
- DD. Error :Ambiguous command found at' position
150The 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? (Multiple Choice)
- AA. The Telnet service of the AR2200 router has been disabled
- BB. The administrator user account has been deleted
- CC. The administrator user account has been disabled
- DD. The authority level of the administrator user account has been modified to 0
151Which of the following parameters cannot be used in the advanced visit control list?
- AA. Physical interface
- BB. Destination port number
- CC. Time range
- DD. Protocol number
152The function of 0SPF hello message is (). (Multiple Choice)
- AA. Update LSA information
- BB. Neighbor discovery
- CC. Synchronize the LSDB of the router
- DD. Maintain neighbor relations
153NAPT distinguishes the IP addresses of different users through the protocol numbers in TCP, UDP, or IP packets
- AA. TRUE
- BB. FALSE
154What is the IEEE802.11 standard corresponding to Wi-Fi6?
- AA. 802.11at
- BB. 802.11ac
- CC. 802.11au
- DD. 802.11ax
155The basic header length of IPv6 packets is a fixed value.
- AA. TRUE
- BB. FALSE
156In the VRP interface, use the command delete vrpcfg.zip to delete the file. You must empty the recycle bin to completely delete the file.
- AA. TRUE
- BB. FALSE
157In which of the following network types does the OSPF protocol need to elect DR and BDR? (Multiple choice)
- AA. Point to multipoint
- BB. Point-to-point type
- CC. NBMA
- DD. Broadcast type
158As shown in the figure below, the MAC address table of SWA is as follows. The switch can't learn the MAC address of HOST A all the time. Which of the following is impossible?
- AA. The G0/0/1 port of the switch is set to ACCESS mode
- BB. The G0/0/1 port of the switch has disabled MAC address learning
- CC. HOST A did not send any data frames
- DD. SWA turns off the MAC address learning function of the VLAN to which host A belongs
Informationen
- Beschreibung
- PARA PRACTICA
- Autor
- azarias beltre
- Sprache
- Español
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