If the Length/Type of an Ethernet data frame is 0x8100. Which of the following statements is correct?

The upper layer of a data frame must exist IP header

There is always a UDP header in the upper layer of each data frame

The upper layer of a data frame must exist IP header

There is always a TCP header in the upper layer of each data frame

Each data frame must carry VLAN TAG

After the administrator successfully logged in to the router through Te1net, he found that the router's interface could not be configuredIP address. Then the possible reasons are ()

Telnet user level configurationMistake

The Telnet terminal software used by the administrator prohibits the corresponding operation

SNMP parameter configuration fiveMistake

Telnet user authentication mode configurationMistake

Telnet user level configurationMistake

The following statement about static routing in Huawei equipment is wrong ().

The range of static route priority value is 1-255

The cost value (Cost) of a static route cannot be modified.

The default value of the static route priority is 60

The range of static route priority value is 1-255

When the priority of a static route is 0, the route will definitely be preferred.

Which of the following statements is correct? ()

The router works at the network layer

The router works at the physical layer

The switch works at the physical layer

The switch works at the network layer

The router works at the network layer

The following description of the Layer 2 Ethernet switch is incorrect ().

Need to make certain modifications to the layer 3 header of the forwarded message, and then forward it

Forward according to the Layer 2 header information of the Ethernet frame

Layer 2 Ethernet switch works at the data link layer

Which of the following statements about Adjacency Segment is wrong? ()

Adjacency Segment must be configured manually

Adjacency Segment is identified by Adjacency Segment ID. (SID)

Adjacency Segment spreads to other network elements through the IGP protocol, which is visible globally and valid locally

Adjacency Segment must be configured manually

Adjacency Segment is used to identify an adjacency of a node in the network

Which of the following statements about direct routing is correct? ()

Direct routing has the highest priority

Direct routing requires the administrator to manually configure the destination network and next hop address

Direct routes have lower priority than static routes

Direct routing has lower priority than dynamic routing

Direct routing has the highest priority

When an Access type port sends a message, it will ()·

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

There is a WeB server in the private network that needs to provide HITP services to public network users. Therefore, the network administrator needs to configure NAT on the gateway router RTA.

(RTA-Serial1/0/1) nat server protocol top global 202.10.10.1 www inside192.168.1.18080

RTA-Gigabitethernet0/0/1 nat server protocol tcp global 192.168.1.1 www inside 202.10.10.18080

(RTA-Serial1/0/1) nat server protocol tcpglobal 192.168.1.1 www inside202.10.1 0.18080

(RTA-Gigabitethernet0/0/1) nat server protocol tcp global 202.10.10.1 www inside 192.168.1.18080

(RTA-Serial1/0/1) nat server protocol top global 202.10.10.1 www inside192.168.1.18080

A network engineer prompts the following message when entering the command line: Error:UnrecognizeD. commanD. founD. at '^' position. Which of the prompt information is correct? ()

The input command is incomplete

System-view (huawei) command-privilege level3 view user save is correct about the above configuration command ()

Modify the permission level of the save command in the user view to 3

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 is generally used as the export equipment of the network

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? ()

The firewall cannot implement network address translation

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

Huawei H12-811_V1.0 Practice Test 13 - Free Online Exam Questions 481-520

The RSTP protocol uses the P/A mechanism to speed up the speed of the upstream port to the F orwarding state, but what is the reason for the no temporary loop? . Shorten the time of ForwarD. Del ay

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Huawei H12-811_V1.0 Practice Test 13

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