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WorksheetsH12-811 HCIA-Datacom part 4
Total questions: 100
Worksheet time: 51mins
Take effect immediately after the Router ID of the OSPF process is modified
True
False
How many types of OSPF packets are there?
2
4
5
3
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?
2
4
5
3
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
Big
Unanimous
uncertain
small
In the RSTP standard, in order to improve the convergence speed, the port that the switch is directly connected to the terminal can be defined as
Edge port
Root port
Fast port
Backup port
The Backup port in RSTP can replace the failed root port
True
False
As shown in the figure, all four switches run STP and various parameters adopt default values. If the G0/0/2 port of switch C is blocked and the configuration BPDU cannot be sent through this port, how long will the blocked port in the network enter the forwarding state?
About 3 seconds
About 50 seconds
About 30 seconds
About 15 seconds
The link aggregation interface can only be used as a Layer 2 interface
True
False
If the largest number in an ACL rule is 12, by default, the user does not specify a number when configuring a new rule, then the number assigned to the new rule by the system is?
13
15
14
16
The main function of the DNS protocol is
DNS
file transfer
Remote access
Mail transfer
What is the MAC address of the data link layer of each VAP on the AP?
SSID
BSS
ESS
BSSID
Which of the following does not include the advantages of Wi-Fi 6 compared to Wi-Fi 5?
Higher bandwidth
Lower transmission delay
Higher power consumption
Higher number of access terminals per AP
PPPoE sessions can only use CHAP authentication
True
False
Regarding the IPv6 address 2031:0000:720C:0000:0000:09E0:839A:130B, which of the following abbreviations are correct? (Multiple choice)
2031:0:720C:0:0:9E0:839A:130B
2031:0:720C::9E0:839A:130B
2031:0:720C:0:0:9E:839A:1308
2031::720C::9E0:839A:130B
Which of the following protocols does the RA message used by IPv6 stateless autoconfiguration belong to?
IGMPv6
ICMPv6
UDPv6
TCPv6
When planning a campus network, which of the following mask lengths is recommended for device interconnection IP addresses?
16
32
24
30
The correct statement about the transport layer protocol is
UDP is suitable for the transmission of delay-sensitive traffic, and can be reorganized according to the sequence number field in the message header
Well-known port number range is 0-1023
UDP uses the STNOACK flag to request and confirm the establishment of a connection
The establishment of a TCP connection is a three-way handshake, and the termination of a TCP connection requires a four-way handshake.
Which of the following descriptions of wireless devices is correct?
The wireless device does not have a wired interface
FIT AP-Generally complete user access, authentication, service forwarding and other functions independently
The wireless controller AC is generally located at the convergence layer of the entire network, providing high-speed, safe and reliable VLAN services
FAT AP generally works with wireless controller
What is the full name of the general routing platform VRP?
Versatile Redundancy Platform
Versatile Routing Protocol
Versatile Routing Platform
Virtual Routing Platform
VRP supports OSPF multi-process. If the process number is not specified when OSPF is enabled, the process number used by default is.
10
100
0
1
In the network shown in the figure below, the administrator wants RTA to use a static router and preferentially send data packets to RTB's Loopback0 interface through G0/0/1 port, while G0/0/2 is used as a backup, so what configuration can be made on RTA Realize this requirement?
ip route-static 10.0.2.2 255.255.255.255 10.0.12.2
ip route-static 10.0.2.2 255.255.255.255 10.0.21.2 preference 40
ip route-static 10.0.2.2 255.255.255.255 10.0.12.2
ip route-static 10.0.2.2 255.255.255.255 10.0.21.2
ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 preference 70
ip route-static 10.0.2.2 255.255.255.255 10.0.21.2
ip route-static 10.0.2.2 255.255.255.255 10.0.12.2
ip route-static 10.0.2.2 255.255.255.255 10.0.21.2 preference 70
If the broadcast address of a network is 172.16.1.255, then its network address may be.
172.16.1.128
172.16.2.0
172.16.1.1
172.86.1.253
The administrator wants to allocate a hundred IP address on the G0/0/0 interface of the router. Which of the following addresses is correct?
192.168.10.112
237.6.1.2
127.3.1.4
145.4.2.55
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.
True
False
On Huawei switches, you can use the vlan batch command to create multiple VLANs in batches, simplifying the configuration process.
True
False
Trunk ports can allow multiple VLANs to pass, including VLAN4096.
True
False
The following is the statement about the election of active ports in link aggregation LACP mode. The correct one is?
The interface priority is compared first, and the better one cannot be judged to continue to compare the interface number, the smaller the better.
Only compare interface priority
Compare device priority
Only compare interface numbers
Which of the following parameters is not included in the configuration BPDU of the STP protocol?
Port ID
VLAN ID
Bridge ID
Root ID
A company has 50 private P addresses, and 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 requirements?
easy-ip
NAPT
Static NAT
Basic NAT
After FIT AP obtains AC's IP address, what is the first operation to perform?
Upgrade software version
Download the configuration file
Establish a CAPWAP tunnel
Request configuration file
How many types of data flows with different service levels can be marked based on MPLS labels?
4
2
16
8
The network management system can only view the operating status of the device through the SNMP protocol, but cannot issue configurations.
True
False
Network devices running the SNMP protocol run an agent process locally.
True
False
Which of the following are not the characteristics of a small campus network?
Simple network level
Fewer users
Simple network requirements
Wide coverage
Which of the following information prompts is used by the VRP operating platform for incomplete input commands?
Error: Ambiguous command found at 'position'
False: Incomplete command found at 'position'
Error: Too many parameters found at 'position'
Error: Wrong parameter found at 'position'
An existing switch is connected to a designated port through a port, but the port does not forward any packets, but can monitor network changes by receiving BPDUs, then the role of the port should be.
Designated port
Alternate port
Disable port
Root port
If host A has the ARP cache of host B, host A can ping host B.
True
False
By default, what is the Forward Delay time of the STP protocol in seconds?
5
10
15
20
Which of the following statements is correct for the ACL configured in the Telnet application?
The device with IP address 172.16.105.4 can use Telnet service
The device with IP address 172.16.105.3 can use Telnet service
The device with IP address 172.16.105.5 can use Telnet service
The device with IP address 172.16.105.6 can use Telnet service
Which of the following fields is not included in the HELLO packet of the OSPF protocol?
Neighbor
Network Mask
Hello Interval
Sysname
All interfaces of the router belong to the same broadcast domain.
True
False
The host's IPv4 address is 200.200.200.201. Which of the following hosts has an IPv4 address and its communication does not need to be forwarded by a router?
200.200.200.202
200.200.200.200
200.200.200.203
200.200.200.1
Among the following commands for configuring the default route, the correct one is.
(Huawei-Seria10) ip route-static 0.0.0.0 0.0.0.0 0.0.0.0
(Huawei) ip route-static 0.0.0.0 0.0.0.0 192.168.1.1
(Huawei) ip route-static 0.0.0.0 0.0.0.0 0.0.0.0
(Huawei) ip route-static 0.0.0.0 255.255.255.255 192.168.1.1
If the network address of a network is 192.168.1.0, then its broadcast address must be 192.168.1.255.
True
False
On Huawei ARG3 routers, the -i parameter of the Ping command in VRP is used to set.
Destination IP address for receiving Echo Reply reply
The source IP address of the Echo Request message
Interface for receiving Echo Reply messages
Interface for sending Echo Request messages
If the Proto of a certain route information in the routing table is OSPF, the priority of this route must be 10.
True
False
Which of the following advantages does the single-arm routing method achieve routing intercommunication between VLAN?
Reduce the number of equipment
Reduce routing table entries
Reduce the use of IP addresses
Reduce the number of chain connections
The VlanIF IP addresses of the same switch cannot be the same.
True
False
When the host frequently moves, which VLAN division method is most appropriate?
Based on MAC Address division
Based on strategy division
Based on IP subnetting
Based on port division
The Backup port in RSIP can replace the failed root port.
True
False
In VRP on the platform, the command "interface vlan (vlan-id)" The role is.
Create a VLAN
No such command
Create or enter VLAN virtual interface view
Configure VLAN for a port
Layer 2 ACL can match source MAC, destination MAC, source IP, destination IP and other information.
True
False
When deploying ACL on Huawei equipment, which of the following descriptions is correct? (Multiple Answers)
When calling ACL under the interface, it can only be applied to the outbound direction
ACL can match the TCP/UDP port number of the packet, and can specify the range of port numbers
ACL cannot be used to filter OSPF traffic, because COSPF traffic does not use UDP protocol encapsulation
The same ACL can be called under multiple interfaces
When ACL defines rules, it can only proceed in the order of 10, 20, 30
The configuration of the country code will affect the actual frequency used for transmission and the maximum transmission power.
True
False
The role of telnet.read.all in telnetlib is to read all data until EOF. If the echo does not return EOF, it will block consistently
True
False
VRP operating platform, which of the following commands can only view static routes?
display ip routing-table protocol static
display ip routing-table
display ip routing-table verbose
display ip routing-table statistics
IP route--static 10.0.12.0 255.255.255 192.168.1.1 About this command description is correct.
This command configures a route to the 10.0.12.0 network
The priority of this route is 100
If the router learns a router with the same destination network as this route through other protocols, the router will prefer this route
This command configures a route to the 192.168.1.1 network
192.168.1.127 represents address.
broadcast
Multicast
The internet
Host
What are the characteristics of VLAN based on ports?
Add an AVLAN tag to the data frame according to the IP address carried in the message
Assign VLAN ID according to the protocol type and encapsulation format of the data frame
No need to reconfigure VLAN when the host moves
When the host moves, the VLAN needs to be reconfigured
In which working state of the port in the STP protocol can it be changed to the Forwarding state without going through other states?
Listening
Disabled
Blocking
Learning
The configuration information of a certain interface of the router is as follows, which VLAN packet can this port receive?
#
interface GigabitEthernet0/0/2.30
dot1q termination vid 100
ip address 10.0.21.1 255.255.255.0
arp broadcast enable
#
1
100
30
20
In a Layer 2 network with redundant links, which of the following protocols can be used to avoid loops?
VRRP
ARP
UDP
STP
For switches running the STP protocol, the port needs to wait for the forwarding delay in the Learning state to transform into the Forwarding state.
True
False
When the switch port receives a data frame that does not carry VLAN TAG, it must add PVID.
True
False
Which of the following packet types is used by RADIUS to indicate authentication rejection?
Access-Accept
Access-Request
Access-Challenge
Access-Reject
NAPT distinguishes the IP addresses of different users through the protocol numbers in TCP, UDP, or IP packets.
True
False
Which of the following authentication methods does not require the user name and password?
authentication-mode local
authentication-mode none
authorization-mode hwtacacs
Authentication-mode hwtacacs
The CAPWAP protocol stipulates the communication standard between AC. and Ap. Which of the following statements about the CAPWAP protocol is correct?
CAPWAP is an application layer protocol based on TCP transmission
In order to establish a CAPWAP tunnel, the FIT Ap can only discover the AC through broadcast messages
In order to reduce the burden on the AP, CAPWAP uses a tunnel to simultaneously transmit control messages and data messages
The AP can encapsulate the user's data message in CAPWAP and hand it over to the AC.
Wireless access controller (AC, Access Controller) As a unified management and control device in the FIT AP architecture, the following description of the role of AC. is wrong.
No matter when the data is forwarded, the user's data message will be forwarded by AC.
User access control
User access authentication
AP configuration delivery
How many more bytes are the packets using MPLS label double-layer nesting technology than the original IP packets?
32
8
4
16
1 is the IPv6 loopback address.
True
False
Which of the following IPv6 is a global unicast address?
2001::12:1
FF02:1
FF:02:2E0:FCFF:FEEF:FEC
FEE:FCFF:FEEF:FEC
About the above configuration command is correct.
Modify the user's authority level to 3. And save the configuration
Modify the limit level of the save command used by a user to 3
Modify the permission level of the user view command to 3, and save the matching sinus
Modify the permission level of the save command in the user view to 3
When planning a campus network, which of the following methods can be used to divide service VLANs?
Divide vlan according to the access member structure
VLAN by business
Divide VLAN by logical area
Divide VLAN into J by geographical area
Which of the following descriptions about firewalls is wrong?
Firewall can isolate networks of different security levels
The firewall cannot network address translation
Firewall can realize user identity authentication
Firewall can realize access control between different networks
The correct setting of the terminal emulation program when configuring the router through the Console.
19200bps, 8 data bits, 1 stop bit, no checksum and no flow control
9600bps, 8 data bits, 1 stop bit, even parity and hardware flow control
9600bps, 8 data bits, 1 stop bit, no checksum and no flow control
4800bps, 5 data bits, 1 stop bit, odd checksum and no flow control
The router running the OSPF protocol reaches the FULL state first, and then synchronizes the LSDB.
True
False
Which of the following commands to configure the default route is correct?
(Huawei-serial)ip route-static 0.0.0.0 0.0.0.0 0.0.0.0
(Huawei)ip route-static 0.0.0.0 255.255.255.255 192.168.1.1
(Huawei)ip route-static 0.0.0.0 0.0.0.0 192.168.1.1
(Huawei)ip route-static 0.0.0.0 0.0.0.0 0.0.0.0
Which of the following fields is not included in the Hello packet of the OSPF protocol?
Network Mask
sysname
HelloInterval
Neighbor
What is the protocol number corresponding to the ospf protocol at the network layer?
89
6
0
1
Which of the following statements about the role of the STP protocol Forward Delay is correct?
Prevent temporary loops
There is a delay in the transition between Blocking state and Disable state
Reduce the time interval of BPDu transmission and improve the convergence speed of STP
Improve the survival time of BPDUs to ensure that the configured BPDUs can be forwarded to more switches
Which of the following is not the reason why RSTP can increase the speed of convergence?
Fast switching of the root port
The introduction of edge ports
Forward Delay cancelled
P/A Mechanism
Neither the A1 ternate interface nor the Backup port in RSTP can forward user traffic, nor can they receive, process, and forward BPDUs
True
False
The following description about the specified port of the spanning tree is correct
Each switch has only one designated port
The designated port can forward configuration BPDU packets to the network segment connected to it
The port on the root switch must be a designated port
The port on the root switch must not be a designated port
Which of the following statements about VLANIF interfaces are correct?
The VANIF interface does not need to learn MAC addresses.
The VLANTF interface does not have a MAC address.
Different VLANIF interfaces can use the same IP address
The VLANIF interface is a Layer 3 interface
Which of the following statements about the edge port in the RSTP protocol is correct?
The edge port discards the received configuration BPDU packet
The edge port can be directly transferred to the Forwarding state from Disable
Edge port participates in RSTP operation
The interconnection ports between switches need to be set as edge ports
Static NAT can only achieve one-to-one mapping between private addresses and public addresses
True
False
The following rules exist in an ACL of a router, rule deny tcp source 192.168.2.0 0.0.0.255 destination 172.16.10.2 0.0.0.0, which of the following statements is correct?
All TCP packets whose source IP is 192.168.2.1 and destination IP is 172.16.10.1 match this rule
All TCP packets whose source IP is 192.168.2.1 and destination IP is 172.16.10.2 match this rule
All TCP packets whose source IP is 172.16.10.2 and destination IP 192.168.2.1 match this rule
All TCP packets whose source IP is 172.16.10.2 and destination IP 192.168.2.0 match this rule
RADIUS is a common protocol to implement AAA.
True
False
Telnet is based on TCP protocol
True
False
What kind of message does the DHCP server use to confirm that the host can use the IP address?
DHCP DISCOVER
DHCP ACK
DHCP OFFER
DHCP REQUSET
In order to implement FIT AP online, FIT AP first needs to obtain the IP address of AC. Which of the following options is not included in FITAP obtaining the IP address of AC?
DHCP option mode
Static designation method on AP
Broadcasting method
Multicast mode
On the VRP operating platform, what command is used to display the current interface configuration in the interface view?
display users
display version
display this
display ip interfacebrief
On the VRP platform, which of the following methods can be used to access previous historical commands?
Ctrl+U
Ctrl+P
Left cursor
Up cursor
The subnet mask of a network segment 150.25.0.0 is 255.255.224.0, then is a valid host address in this network segment.
150.25.2.24
150.25.0.0
150.25.1.255
150.15.3.30
On the broadcast network, both DR and BDR use the multicast address 224.0.0.6 to receive link state update messages.
True
False
The following statement about the TTL field in the IP packet header is correct.
TTL defines the time interval at which the source host can send data packets
TTL defines the number of packets that the source host can send
Each time an IP packet passes through a router, its TTL value will be reduced by 1
Each time an IP packet passes through a router, its TTL value is increased by 1
The WPLS tag header is encapsulated between the data link layer header and the network layer header of the message.
True
False
SNMP messages are carried over UDP.
True
False
Which of the following types does the IPV6 address contain? (Multiple Choice)
Anycast address
Link local address
Multicast address
Unicast address
Broadcast address
