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WorksheetsH12-811 HCIA-Datacom Part 6
Total questions: 100
Worksheet time: 50mins
The output information of a router is shown in the figure. Which of the following statements is correct? (Multiple choice)
The DR priority of this routing interface is 10
The cost value of this interface is 1
This router is BDR
The Router ID of the router is 10.0.1.1
The output information of a certain device is shown in the figure. Which of the following statements is correct? (Multiple choice)
The standby main control board of the device is operating normally
The VRP operating version of this device is CRP5
The device name is Huawei
The device has been running for 1 minute
The network is shown in the figure below, and the switch configuration information is shown in the figure. Which of the following statements is correct? (Multiple choice)
#
interface GigabitEthernet0/0/1
port hybrid pvid vlan 20
port hybrid untagged vlan 10 20
#
interface GigabitEthernet0/0/2
port hybrid pvid vlan 10
port hybrid untagged vlan 10 20
#
Data frames on the two links do not include VLAN TAG
Host A and Host B can be pinged
Host A and Host B cannot be pinged
The PVID of port GigabitEthernet0/0/1 of the switch is 20
In the network shown in the figure, which of the following configurations can realize that the host A can access the Internet, but the host B cannot? (Multiple choice)
acl number 2000
rule 5 deny source 100.0.12.0.0.0.0.255
rule 10 permit
#
interface GigabitEthernet0/0/3
traffic-filter outbound acl 2000
#
acl number 2000
rule 5 permit source 100.0.13.0.0.0.0.255
rule 10 deny source100.0.12.0.0.0.0.255
#
interface GigabitEthernet0/0/3
traffic-filter outbound acl 2000
#
acl number 2000
rule 5 permit source 100.0.13.0.0.0.0.255
rule 10 deny
#
interface GigabitEthernet0/0/3
traffic-filter outbound acl 2000
#
acl number 2000
rule 5 deny source 100.0.12.0.0.0.0.255
rule 10 permit source 100.0.13.0.0.0.0.255
#
interface GigabitEthernet0/0/3
traffic-filter outbound acl 2000
#
The output information of the router R1 routing table is shown in the figure. Which of the following statements is correct? (Multiple choice)
The data packet whose destination network is 12.0.0.0/8 will be forwarded from the router's Ethernet0/0/0 interface
The router will discard packets whose destination network is 11.0.0.0/8
The router will forward data packets whose destination network is 12.0.0.0/8
The data packet whose destination network is 11.0.0.0/8 will be forwarded from the router's GigabitEthernet0/0/0 interface
As shown in the figure, after the two routers are configured with OSPF, the administrator configures the
RTA will continue to receive, analyze and process OSPF packets sent by RTB
The neighbor relationship between the two routers will be down
The neighbor relationship between the two routers will not be affected
RTA will no longer send OSPF packets
As shown in the figure below. All switches enable the STP protocol and keep other configurations in their default state. When the network is stable, are the following statements correct?
Both ports of SWC are in Forwarding state
Both ports of SWB are in Forwarding state
SWA is the root bridge in this network
SWB is the root bridge in this network
In the network as shown in the figure, which of the following configurations can realize that host A cannot access the HTTP service of host B, and host B cannot access the FTP service of host A? (Multiple choice)
acl number 3000
rule 5 deny tcp source 100.0.12.0 0.0.0.255 source-port eq www destination 100.0.13.0 0.0.0.255
#
acl number 3001
rule 5 deny tcp source 100.0.13.0 0.0.0.255 source-port eq ftp destination 100.0.12.0 0.0.0.255
#
Interface GigabitEthernet0/0/1
traffic-filter inbound acl 3000
#
Interface GigabitEthernet0/0/2
traffic-filter inbound acl 3001
#
acl number 3000
rule 5 deny tcp source 100.0.13.0 0.0.0.255 destination 100.0.12.0 0.0.0.255 destination eq www
#
acl number 3001
rule 5 deny tcp source 100.0.12.0 0.0.0.255 destination 100.0.13.0 0.0.0.255 destination eq ftp
#
Interface GigabitEthernet0/0/1
traffic-filter inbound acl 3000
#
Interface GigabitEthernet0/0/2
traffic-filter inbound acl 3001
#
acl number 3000
rule 5 deny tcp source 100.0.12.0 0.0.0.255 source-port eq www destination 100.0.13.0 0.0.0.255
#
acl number 3001
rule 5 deny tcp source 100.0.13.0 0.0.0.255 source-port eq ftp destination 100.0.12.0 0.0.0.255
#
Interface GigabitEthernet0/0/1
traffic-filter inbound acl 3000
#
Interface GigabitEthernet0/0/2
traffic-filter inbound acl 3001
#
acl number 3000
rule 5 deny tcp source 100.0.13.0 0.0.0.255 destination 100.0.12.0 0.0.0.255 destination eq www
#
acl number 3001
rule 5 deny tcp source 100.0.12.0 0.0.0.255 destination 100.0.13.0 0.0.0.255 destination eq ftp
#
Interface GigabitEthernet0/0/1
traffic-filter inbound acl 3000
#
Interface GigabitEthernet0/0/2
traffic-filter inbound acl 3001
#
Network as shown in the figure. The administrator hopes that all hosts cannot access the Web service (the port number is 80) and other services can be accessed normally.
Then in the interface configuration of G0/0/1, which ACL rule needs to be bound to trattie-frilter outbound?
acl number 3002
rule 5 permit ip
rule 10 deny tcp destination-port eq www
#
acl number 3003
rule 5 permit ip
rule 10 deny udp destination-port eq www
#
acl number 3001
rule 5 deny udp destination-port eq www
rule 10 permit ip
#
acl number 3000
rule 5 deny tcp destination-port eq www
rule 10 permit ip
#
As shown in the figure below, which of the following statement is correct? (Multiple choice)
The broadcast address of host A and host B are the same
Host A cannot ping host B
Host A and Host B can obtain each other's MAC address
The following entry 10.0.12.5 MAC-B exists in the ARP cache of host A
The output information of the sub-interface of a router aggregate port 1 is shown in the figure. According to this information, which of the following statements are correct? (Multiple choice)
The sub-interface number of the aggregate port is 100
The sub-interface of the aggregate port carries VLAN when forwarding data frames
Two links exist on the aggregated port
The IP address of the sub-interface of the aggregate port is 10.0.12.2
As shown in the figure below, Router A has Telnetted Router B through the 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)
Enable OSPF protocol under G0/0/1 interface
Configure static routing
Modify the IP address of G0/0/1 interface
Close G0/0/1 interface
In the network shown in the figure below, the host has an ARP cache. Which of the following statements is correct? (Multiple choice)
The following entries may appear in the ARP cache of host A 10.0.12.2 MAC-C
The router needs to be configured with a static route. Otherwise, host A and host B cannot communicate in both directions
Host A and Host B can communicate in two directions
The following entry 11.0.12.1 MAC-B exists in the ARP cache of host A
The output information of a router's routing table is shown in the figure. Which of the following statements is correct? (Multiple choice)
The NextHop for this router to reach 10.0.2.2 is 10.0.12.2
The NextHop for this router to reach 10.0.0.1 is 10.0.12.2
The NextHop for this router to reach 10.0.2.2 is 10.0.21.2
The NextHop for this router to reach 10.0.0.1 is 10.0.21.2
The network is shown in the figure below. Which of the following statements is correct? (Multiple choice)
Host A and Host C can ping through
All hosts can ping each other
Host B and Host C can ping through
Host A and Host B cannot ping through
The output information of a certain router is shown in the figure. Which of the following statements are correct? (Multiple choice)
The Router ID of the router is 10.0.1.1
This router is DR
The interface address of this router is 10.0.12.2
The Router ID of the router is 10.0.2.2
As shown in the figure below, assuming that the other configurations of the switch are kept in the default state, which port of the following switch will become the designated port? (Multiple choice)
SWB's G0/0/1
SWC's G0/0/2
SWA's G0/0/3
SWC's G0/0/1
The G0/0/1 interface configuration information of router A is shown in the figure. Which of the following statements are correct? (Multiple choice)
The interface will not forward the received FTP packets
This interface can establish OSPF neighbor relationships with other routers
This interface will not forward ICMP packets
This interface will not forward received SNMP packets
According to the following configuration, which of the following statements are correct? (Multiple choice)
int g0/0/1
port hybrid pvid vlan 20
port hybrid pvid vlan 10
int g0/0/2
port hybrid untagged vlan 10 20
port hybrid untagged vlan 10 20
Host A (PC3) can ping host B (PC4)
The pvid of the G0/0/1 port of the switch is 20
The two link data frames do not contain vlan tag
Host A (PC3) cannot ping host B (PC4)
At what frequency does the IEEE 802.11n standard support to work? (Multiple Choice)
2.5GHz
2.4GHz
5GHz
6GHz
Which WLAN security policies support the link authentication method of open mode? (Multiple Choice)
WPA2-802.1X
WPA2-PSK
WEP
WPA
Which of the following statements about RA and RS in IPv6 are correct?
RS is used to reply address prefix information
RA is used to request address prefix information
RS is used to request address prefix information
RA is used to reply address prefix information
The IP addresses of the VLANIF interfaces of the same switch cannot be the same.
True
False
Access type ports will () when sending messages.
Send tagged messages
Strip the VLAN information of the message, and then send it out
Type the PVID information of this port, and then send it out
Add the ZLAN message of the message, and then send it out
The configuration information of a certain port of the switch is shown in the figure, then the PVID of this port is:
#
interface GigabitEthernet0/0/1
port hybrid tagged vlan 2 to 3 100
port hybrid untagged vlan 4 6
#
100
2
4
1
What is the value of the Type field in the RSTP configuration BPDUs message?
0x01
0x00
0x02
0x03
The Priority field in the VLAN tag can identify the priority of the data frame. What is the scope of this priority?
0-15
0-63
0-3
0-7
What elements can NAPT convert?
Only MAC address
IP address + port number
MAC Address + port number
Only IP address
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.
RTA-Gigabitethernet0/0 nat server protocol tcp global 192.168.1.1 www inside 202.10.10.1 8080
(RTA-Serial1/0) nat server protocol tcp global 192.168.1.1 www inside 202.10.1 0.1 8080
(RTA-Gigabitethernet0/0) nat server protocol tcp global 202.10.10.1 www inside
192.168.1.1 8080
(RTA-Serial1/0) nat server protocol tcp global 202.10.10.1 www inside 192.168.1.1 8080
A network engineer prompts the following information when entering the command line:
Error: unrecognized command found at ‘^’ position.
Which of following statement about the prompt information is correct?
The input command is not clear
Wrong parameter type
No keyword found
Input command is incomplete
Which of the following configuration commands is correct?
<Huawei> system-view
[Huawei] command-privilege level 3 view user save
Modify the user's authority level to 3, and save the configuration
Modify the permission level of the user view command to 3, and save the configuration
Modify the authority level of the save command used by a user to 3
Modify the permission level of the save command in the user view to 3
Which of the following descriptions about the switch is wrong?
The switch can complete the exchange of data frames
The switch can provide network access services for terminal equipment (PC, Server)
Switches generally work at the data link layer
The switch is generally used as the export equipment of the network
Which of the following descriptions about firewalls is wrong?
Firewall can realize user identity authentication
Firewall can realize access control between different networks
The firewall can isolate the network of unreachable security level
The firewall cannot implement network address translation
On the VRP platform, the default protocol priority of routes in the direct route, static route, RIP, OSPF area, from high to low, is
Direct route, OSPF, Static route, RIP
Direct route, Static route, RIP, OSPF
Direct route, RIP, Static route, OSPF
Direct route, OSPF, RIP, Static route
On Huawei routers, what is the default value of the OSPF protocol internal routing priority?
20
10
30
0
The load sharing mode at both ends of the Eth-Trunk can be inconsistent ()
True
False
When Huawei switches allow STP, the priority of the switch by default is
32768
8192
16384
4096
On Huawei equipment, if AAA authentication is used for authorization, when the remote server does not respond, authorization can be performed from the network equipment side.
True
False
In IPv4 network, AP supports static and DHCP to obtain IP address
True
False
For the description of the PPP link establishment process, the following statement is wrong?
In the Establish phase, the PPP link performs LCP parameter negotiation. The negotiation content includes the maximum receiving unit MRU, authentication method magic word and other options
After the NCP negotiation is successful, the PPP link will maintain the communication state and enter the Terminate phase
Dead phase is also called the physical layer unavailable phase. When both ends of the communication parties detect that the physical circuit is activated, they will migrate from the Dead phase to the Establish phase, which is the link establishment phase
In the Network phase, the PPP link performs NCP negotiation. Select and configure a network layer protocol through NCP negotiation, E.PPP link supports half-duplex and full duplex modes
Which of the following commands can be used to view the CPU usage of the router?
display cpu-state
display interface
display memory
display cpu-usage
Which of the following IPv6 addresses is a multicast address?
FE80:2EO:FCFF:FEEF:FEC
FC0O:2EO:FCFF:FEEF:FEC
FF02::2EO:FCFF:FEEF:FEC
2000::2EO:FCFF:FEEF:FEC
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.
What is the correct way to log in to the device using telnetlib?
telnetlib.Telnet（10.1.1.10, admin, Huawei@123）
telnetlib.Telnet（10.1.1.10, 23, admin, Huawei@123）
telnetlib.Telnet（10.1.1.10, admin）
telnetlib.Telnet（10.1.1.10）
Which of the following IPv4 addresses the host uses cannot directly access the Internet?
100.1.1.1
50.1.1.1
10.1.1.1
200.1.1.1
What kind of message does the OSPF protocol use to confirm the received LSU message?
LSU
LSR
LSACK
LSA
Which of the following is not the reason why RSTP can increase the speed of convergence?
The introduction of edge ports
Fast switching of the root port
P/A mechanism
Forward delay cancelled
The link aggregation interface can only be used as a Layer 2 interface
True
False
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? ()
Speed up port role election
Ensure that there will be no temporary loops through the synchronization mechanism
Edge port
Reduced the time of ForwarD.Delay
The static MAC address table will not be lost after the system restarts
True
False
In standard STP mode, which of the following non-root switches will forward the C-set BPDU
generated by the root switch?
Designated port
Root port
Backup Port
Preparatory port
When the host frequently moves the office, which VLAN division method is most suitable?
Based on MAC Address division
Based on port division
Based on IP subnetting
Based on strategy division
If a windows host is started for the first time, if it uses DHCP to obtain an IP address, what is the source IP address of the first packet sent by this host?
127.0.0.1
169.254.2.33
0.0.0.0
255.255.255.255
In order to realize the launch of FIT AP, FIT AP first needs to obtain the IP address of AC. Which of the following is not included in the way FITAP obtains the IP address of AC.?
Broadcasting method
Static designation method on AP
Multicast mode
DHCP Option mode
Which of the following messages does the AP use to request the software version from AC?
VRP System Request
Software Request
Image Data Request
Image package Request
IEEE802.11ac only supports the 5GHZ frequency band
True
False
Which of the following descriptions of wireless devices is correct?
The wireless controller AC is generally located at the convergence layer of the entire network, providing high-speed, safe and reliable VLAN services
FIT AP generally independently completes user access, authentication, service forwarding and other functions
FAT AP generally work with wireless controller
The wireless device does not have a wired interface
Which of the following is not included in the VRP system login method?
Telnet
Netstream
SSH
web
Can the administrator modify the device name for the router under?
User-view
Protocol-view
System-view
Interface-view
In the campus network, the reliability of the network can be improved by using link aggregation and stacking technology.
True
False
If it is UDP, the value of the protocol field of the network layer is 6.
True
False
If the application layer protocol is Telnet, then the value of the Protocol field in the IPv4 header?
23
17
6
67
At what layer of the OSI reference model does a router operate?
Data link layer
Transport layer
Application layer
Network layer
VRP operating platform, which of the following commands can only view static routes?
display ip routing-table statistics
display ip routing-table verbose
display ip routing-table
display ip routing-table protocol static
Which of the following OSPF versions is suitable for IPv6?
OSPFv1
OSPFv2
OSPFv3
OSPFv4
When two OSPF routers form a 2-WAY neighbor relationship, the LSDB has been synchronized.
True
False
Switch stacking supports more than two devices, and multiple switches can be grouped into a logical device through stacking.
True
False
At which layer of the OSI reference model do Ethernet switches operate?
Network layer
Data link layer
Physical layer
Transport layer
The 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?
4096 00-01-02-03-04-DD
32768 00-01-02-03-04-AA
32768 00-01-02-03-04-BB
32768 00-01-02-03-04-CC
RTA Uses NAT technology and realizes many-to-many NAPT address translation by defining an address pool, so that hosts in the private network can access the public network. Assuming that there are only two public network P addresses in the address pool, and they have been assigned to hosts A and B for address conversion, and at this time, if the host also wants to access the public network, the following description is correct.
Host C Unable to assign a public network address, and cannot access the public network
All hosts can access the public network by using the public network address in turn
RTA Convert the source port of host C, the host can access the public network
RTA Assign interface address (200.10.10.3) to host C. Host C can access the public network
What is the total length of an IPv6 address in bits?
96
64
32
128
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?
12
15
13
14
All ports on the root bridge switch are designated ports.
True
False
What is the number range of advanced ACLs?
3000-3999
2000-2999
4000-4999
6000-6031
The basic header length of IPv6 packets is a fixed value.
True
False
By default, what is the lease period for the DHCP server to assign an IP address?
12h
1h
24h
18h
Which parameter is used in the spanning tree protocol for root bridge election?
Port ID
Bridge priority
Root path cost
Bridge ID
Management Information Base (MIB) Information Base) is a virtual database, which only exists on the NMS.
True
False
Now we need to implement a Python automation script Telnet to the device to view the remote login configuration of the device. Which of the following statements is wrong?
Telnetlib can achieve this function
telnet.close() is used after each command is entered, and its function is to wait for the switch to return a message
Use telnet.Telnet (host) to connect to the Telnet server
You can use telnet.write (b "display current-configuration\n") to input the command to view the current configuration of the device
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?
VLAN based on protocol
VLAN based on MAC address
VLAN based on port
VLAN based on subnet
The display startup information of the AR2200 router. Regarding these information, the statement is wrong.
The system file at the next startup of the device can be modified with the command "startup system software"
The running configuration file is not saved
The system file used for this startup of the device is ar2220-v200r003c00spc00.cc
The system file cannot be modified when the device is started next time
The administrator plans to implement route backup by configuring static floating routes. The correct way to achieve this is.
The administrator needs to configure different metric values for the main static route and the standby static route
The administrator needs to configure different TAGs for the main static route and the standby static route
The administrator only needs to configure two static routes
The administrator needs to configure different protocol priority values for the main static route and the standby static route
Which of the following descriptions about Trunk port and Access port are correct?
Trunk port can only send untagged frames
The Access port can only send untagged.
Access port can only send tagged frames
Trunk port can only send tagged frame
Which statement about OSPF area division is wrong?
Area.0 is the backbone area. All other areas must be connected to this area
The LSDBs in the routers in the same OSPF area are exactly the same
Dividing OSPF areas can reduce the size of the LSDB of some routers
Only ABR can be used as ASBR
NFV (Network Functional Virtualization), network function virtualization, realizes the deployment of network applications in a software-based way.
True
False
What is the main function of the DHCP DISCOVER message?
The server's confirmation response to the REQUEST message
Used by the client to find the DHCP server
The client requests configuration confirmation, or renews the lease
The DHCP server is used to respond to the DHCP DISCOVER message, which carries various configuration information
In the WLAN architecture, the FIT AP cannot work independently and needs to be managed by AC. Which of the following protocols are used to communicate between FIT AP and AC?
IPsec
WEP
APWAP
WAP
It is known that there are two entries in the routing table of a router. If the router wants to forward packets with the destination address of 9.1.4.5, the correct one of the following statements is.
Choose the second item as the best matching item, because the cost of the RIP protocol is small
The second item is selected as the best matching item, because the route is a more accurate match relative to the destination 9.1.4.5
Select the second item as the best match, because the speed of Ethernet0 is faster than the speed of serial0
Chooses the first item as the best matching item, because the priority value of the ospf protocol is higher
In the network as shown in the figure below, what commands can be entered on the router to make host A ping host B successfully? (Multiple Choice)
RTA： ip route-static 0.0.0.0 0.0.0.0 11.0.12.2
RTB： ip route-static 0.0.0.0 0.0.0.0 11.0.12.1
RTA： ip route-static 10.0.12.5 255.255.255.252 11.0.12.2
RTB： route-static 10.0.12.1 255.255.255.252 11.0.12.1
RTA： ip route-static 0.0.0.0 0.0.0.0 11.0.12.1
RTB： ip route-static 0.0.0.0 0.0.0.0 11.0.12.2
RTA： ip route-static 10.0.12.5 255.255.255.252 11.0.12.1
RTB： ip route-static 10.0.12.1 255.255.255.252 11.0.12.2
According to the command output as shown in the figure, which of the following descriptions is correct? (Multiple Choice)
GigabitEthernet0/0/1 allows VLAN1 to pass
GigabitEthernet0/0/1 does not allow VLAN1 to pass
If you want to change GigabitEthernet0/0/1 to an Access port, you first need to use the command "undo port trunk allow-pass vlan all"
If you want to change GigabitEthernet0/0/1 to an Access port, you first need to use the command "undo port trunk allow-pass vlan 2 to 4094"
According to the command shown in the figure, which of the following descriptions is correct? (Multiple Choice)
The PVID of GigabitEthernet0/0/1 port is 1
The PVID of GigabitEthernet0/0/2 port is 1
The PVID of the GigabitEthernet0/0/2 port is 10
The PVID of GigabitEthernet0/0/1 port is 10
As shown in the figure below, all hosts can communicate normally. Which of the following statements is correct? (Multiple Choice)
G0/0/3 of SWB learned 2 mac addresses
G0/0/3 of SWA learned 1 mac address
G0/0/3 of SWA learned 2 mac addresses
G0/0/3 of SWA learned 3 mac addresses
The administrator has configured as shown in the figure on R1, but R1 cannot learn the routes of other routers, so what is the possible reason? (Multiple Choice)
This router did not announce the network connected to neighbors when configuring ospf
This router is not configured with authentication function, but the neighbor router is configured with authentication function
When this router is configured, the ospf process ID is not configured
The area ID configured by this router is different from the area ID of its neighbor router
The output information of a router's routing table is shown in the figure. Which of the following statements is correct? (Multiple Choice)
The outbound interface of this router to 10.0.0.1 is Ethernet0/0/1
The outbound interface of this router to 10.0.0.1 is Ethernet0/0/0
The outbound interface of this router to 10.0.2.2 is Ethernet0/0/0
The outbound interface of this router to 10.0.2.2 is Ethernet0/0/1
In the network shown in the figure, which of the following descriptions is correct?
The network between RTA and SWC is the same conflict domain
The network between SWA and SWB is the same broadcast domain
The network between SWA and SWC is the same conflict domain
The network between SWA and SWC is the same broadcast domain
As shown in the figure below, the router uses a sub-interface as the host gateway and the gateway IP address is 10.0.12.2. Which of the following commands can achieve this requirement? (Multiple Choice)
interface GigabitEthernet0/0/0.20
dot1q termination vid 10
Ip address 10.0.12.2 255.255.255.0
arp broadcast enable
#
interface GigabitEthernet0/0/0.10
dot1q termination vid 10
Ip address 10.0.12.2 255.255.255.0
arp broadcast enable
#
interface GigabitEthernet0/0/0.20
dot1q termination vid 20
Ip address 10.0.12.2 255.255.255.0
arp broadcast enable
#
interface GigabitEthernet0/0/0.10
dot1q termination vid 20
Ip address 10.0.12.2 255.255.255.0
arp broadcast enable
#
The routing table is shown in the figure, which of the following statements is correct? (Multiple Choice)
The router forwards data packets with a destination IP of 10.0.2.2 from Ethernet0/0/0
The NextHop of the destination network 10.0.3.3/32 is not directly connected, so the router will not forward packets with the destination IP address 10.0.3.3
The router forwards data packets with a destination IP of 10.0.3.3 from Ethernet0/0/0
The router forwards data packets with a destination IP of 10.0.12.1 from Ethernet0/0/0
In 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 is correct? (Multiple Choice)
Enable ARP proxy on port G0/0/1 of the router, then host A can communicate with host B
The data packet sent by host B with the destination IP address 10.0.12.1 can be forwarded to host A
The data packet sent by host A with the destination IP address 11.0.12.1 can be forwarded to host B
Host A and Host B cannot communicate in both directions
The output information of a certain switch is shown in the figure. Which of the following statements is correct? (Multiple Choice)
The GE0/0/1 port of the switch does not carry VLAN TAG when sending VLAN20 data frames
The GE0/0/2 port of the switch carries VLAN TAG when sending VLAN20 data frames
The GE0/0/1 port of the switch does not carry VLAN TAG when sending VLAN10 data frames
The user manually created 4 VLANs
In the network as shown in the figure below, all switches enable the STP protocol. Disable the G0/0/2 port of SWA to configure the BPDU sending function, and G0/0/1 of SWC will reconverge to become the root port. Which of the following statements is correct about this process? (Multiple Choice)
SWB forwards TCN BPDU to SWA
SWB sends configuration BPDU with TCA set to SWC
SWC sends TCN BPDU to SWB
SWA sends configuration BPDU with TC set
In the network shown in the figure below, from a security perspective, Router A refuses to receive OSPF packets and ICMP packets received from the G0/0/1 interface. Which of the following commands can achieve this requirement? (Multiple Choice)
acl number 3000
rule 5 deny 89
rule 10 deny icmp
#
interface GigabitEthernet0/0/1
traffic-filter inbound acl 3000
#
acl number 3000
rule 5 deny 89
rule 10 deny 1
#
interface GigabitEthernet0/0/1
traffic-filter inbound acl 3000
#
acl number 2000
rule 5 deny 89
rule 10 deny 1
#
interface GigabitEthernet0/0/1
traffic-filtet inbound acl 2000
#
acl number 3000
rule 5 deny ospf
rule 10 deny icmp
#
interface GigabitEthernet0/0/1
traffic-filtet inbound acl 3000
#
