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Huawei H31-211 Dumps

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Total 434 questions
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HCNA - Carrier IP Questions and Answers

Question 1

For such a network segment 192.168.2.16/28, how many hosts can I accommodate?

Options:

A.

16

B.

8

C.

15

D.

14

E.

7

Question 2

120. Which of the following commands can be used by users at the visit level? (multiple choice)

Options:

A.

ping

B.

tracert

C.

display current-configuration

D.

TFTP

Question 3

The first layer to the first layer of the OSI reference model is called the lower layer, responsible for the transmission of data in the network?

Options:

A.

II

B.

Three

C.

Four

D.

Five

Question 4

What are the forwarding modes of Layer 2 switches? (multiple choice)

Options:

A.

Direct forwarding

B.

Store and forward

C.

Fragment forwarding

D.

Update forwarding

Question 5

A common PPP authentication protocol is PAP and CHAP. The two ends of a PPP link can use different authentication protocols to authenticate the peer. However, the authenticated party must support the authentication protocol used by the authenticator and correctly configure the authentication information such as the username and password.

Options:

A.

True

B.

False

Question 6

On the port running Frame Relay, the MAP table corresponds to the logical interface, and the different logical interfaces have different MAP tables.

Options:

A.

True

B.

False

Question 7

Link state routing protocol, which factors will usually be considered to calculate the route to the destination network segment?

Options:

A.

Hops to the destination address

B.

Manually specified next hop address

C.

Link bandwidth resource information

D.

Whether the outgoing interface of the route aggregates the port

Question 8

Which of the following statements about VLANs are correct? (multiple choice)

Options:

A.

Users in different VLANs are not on one network segment.

B.

The number of VLANs that the switch can support is related to device performance.

C.

Users in different VLANs cannot communicate with each other.

D.

VLAN can effectively isolate broadcast packets.

Question 9

Which command can be used to display the mapping between network address and DLCI on the Quidway router?

Options:

A.

display fr interface

B.

display fr

C.

display fr map-info

D.

display fr brief

Question 10

If a switch displays part of the information as follows, what is the PVID of this port?

[Quidway] display interface Ethernet 1/0/1...Mdi type:autoPort link-type:accessTagged VLAN ID:noneUntagged VLAN ID:5

Options:

A.

0

B.

1

C.

5

D.

Insufficient information, unknown

Question 11

The main feature of the LAN is that the network is owned by one unit and the geographical range and number of stations are limited.

What are the common transmission media in the LAN? (multiple choice)

Options:

A.

Fiber

B.

Coaxial cable

C.

Twisted pair

D.

Serial cable

Question 12

One-arm routing implements VLAN interworking. The number of router sub-interfaces depends on the number of VLANs that are accessed.

Options:

A.

True

B.

False

Question 13

Network protocols are diverse and are now the most widely used, and have become the standard protocol for the Internet?

Options:

A.

TCP/IP

B.

IPX

C.

SNA

D.

SPX

Question 14

Which of the following commands should I use to observe the routing table on the Quidway router?

Options:

A.

display ip path

B.

display ip routing-table

C.

display interface

D.

display current-configuration

Question 15

The firewall does not provide detection for encrypted data or for data in tunnels that traverse it.

Options:

A.

True

B.

False

Question 16

What is the Age time of the RIP routing protocol that is viewed by the command on the router?

Options:

A.

RIP packet update interval

B.

RIP route aging time

C.

RIP route suppression time

D.

RIP route switching time

Question 17

Which of the following statements about VRRP is correct? (multiple choice)

Options:

A.

Under normal circumstances, the business is all undertaken by the Master.

B.

When the Master fails, the Backup device takes over the work.

C.

VRRP can only monitor the interface status of VRRP.

D.

VRRP can implement active/standby backup and cannot implement load balancing.

Question 18

Which method of authentication is supported in the RIPv1 seal text?

Options:

A.

Clear text

B.

Ciphertext

C.

MD5 ciphertext verification

D.

Does not support authentication

Question 19

In a computer system, what can be collectively referred to as data? (multiple choice)

Options:

A.

Number

B.

Voice

C.

Graphics

D.

Display

E.

Letters

Question 20

Which of the following is the correct description of the Message Age in the configuration BPDU packet? (multiple choice)

Options:

A.

If the configuration BPDU is sent by the root bridge, the Message Age is 1.

B.

Message Age is the total time that the BPDU is sent from the root bridge to the current bridge.

C.

In actual implementation, the BPDUs are configured to pass through a bridge, and the Message Age is increased by 1.

D.

The value of Message Age will not exceed 15

Question 21

Which of the following application layer protocols is based on UDP?

Options:

A.

FTP

B.

Telnet

C.

TFTP

D.

HTTP

Question 22

The IP address 191.10.196.132 uses a natural mask. What is the network address of 191.10.196.132?

Options:

A.

191.0.0.0

B.

191.10.0.0

C.

191.10.48.0

D.

191.10.96.0

Question 23

Regarding OSPF routers, neighbor relationships and connection relationships, what are the correct descriptions? (multiple choice)

Options:

A.

Neighbor relationships must form adjacencies

B.

The adjacency relationship must be a neighbor relationship

C.

Neighbor relationship can synchronize LSDB

D.

Adjacency can synchronize LSDB

Question 24

What is the network address of the network segment where the IP address 195.233.27.13/16 is located?

Options:

A.

190.0.0.0

B.

190.233.0.0

C.

190.233.27.0

D.

190.233.27.1

Question 25

How does Hub work?

Options:

A.

Simplex

B.

Half duplex

C.

Full duplex

D.

Auto-negotiation

Question 26

Regarding the characteristics of the OSPF protocol, what are the following statements correct? (multiple choice)

Options:

A.

Support flat network design

B.

Routing changes converge fast

C.

Support multiple equal-cost routes

D.

Support authentication of protocol packets

Question 27

The MRU indicates the maximum value of the data field of the PPP data frame received by the local end. In general, how many bytes is this parameter option using the default value?

Options:

A.

1492

B.

1500

C.

4700

D.

9600

Question 28

The level of TCP/IP protocol is not divided according to the OSI reference model. Corresponding to OSI's seven-layer network model, which of the following options is not defined?

Options:

A.

Link layer and network layer

B.

Network layer and transport layer

C.

Session layer and presentation layer

D.

Transport layer and session layer

Question 29

What does the Access port do when it sends a message?

Options:

A.

Send a message with tog

B.

Strip the VLAN information of the packet and send it directly.

C.

Exchange the VLAN information of the packet and send it out.

D.

Put the PVID information of this port.

Question 30

IEEE 802.1P standard development?

Options:

A.

VLAN tag

B.

VLAN priority

C.

VLAN ID

D.

TPID

Question 31

Which of the following devices are working at the network layer?

Options:

A.

Hub

B.

Bridge

C.

Switch

D.

Router

Question 32

The router does not need to know the complete forwarding path. It only knows how to get to the nearest next hop of the destination. What is the process of relaying and forwarding this message?

Options:

A.

hop by hop forwarding

B.

host by host forwarding

C.

router by router forwarding

D.

network by network forwarding

Question 33

Configure RIP on Router A and enable RIP routing on the network segment where S0 (IP address is 10.0.0.1/24). Which of the following commands are required? (Multiple choice)

Options:

A.

rip

B.

rip 10.0.0.0

C.

network 10.0.0.0 255.255.255.0

D.

network 10.0.0.0

Question 34

Which of the following network segments are private addresses? (multiple choice)

Options:

A.

10.0.0.0/8

B.

172.16.0.0/12

C.

192.168.0.0/16

D.

224.0.0.0/8

Question 35

Among the following IP addresses, which IPs can't be obtained by a PC via DHCP? (multiple choice)

Options:

A.

224.0.0.1

B.

10.0.1.128/25

C.

169.254.136.228

D.

12.2.2.3/30

Question 36

Which of the following is not the main function of OSPF Hello messages ()

Options:

A.

Discovering neighbors

B.

Negotiation parameters

C.

Election of DR/BDR

D.

Negotiating the master

Question 37

The following may result in the inability to establish an adjacency relationship between OSPF routers? (multiple choice)

Options:

A.

The interface network segment is inconsistent

B.

Ethernet or NBMA network interface priority is all zero

C.

Timer parameters are inconsistent

D.

The same router ID

Question 38

Use the ping program to test the path through which the target node passes.

Options:

A.

True

B.

False

Question 39

Regarding RIP route aggregation, what are the following statements correct? (multiple choice)

Options:

A.

Route aggregation refers to the route sent by different subnets in the same natural network segment to a natural mask when sent to other network segments.

B.

RIPv1 does not support route aggregation

C.

Huawei routers use RIPv2 to disable route aggregation by default.

D.

When all subnet routes need to be broadcasted, you can disable RIPv2 route aggregation.

Question 40

What are the correct statements about the ARP and RARP protocols? (multiple choice)

Options:

A.

ARP maps MAC to IP address

B.

RARP maps the IP address corresponding to the MAC address

C.

RARP maps IP numbers to MAC addresses

D.

ARP maps the IP address to the corresponding MAC address.

Question 41

Which of the following are the characteristics of TCP? (multiple choice)

Options:

A.

Applicable to applications that are more concerned with transmission efficiency

B.

Connection oriented

C.

High overhead

D.

No connection

Question 42

For the configuration of a VLAN port, what is the correct option described below?

Options:

A.

When a port is removed from a VLAN other than the default VLAN, the port will be added to the default VLAN.

B.

When adding a port that has been configured to another VLAN to another VLAN, you must first remove the port from the original VLAN by using the configuration command.

C.

You can configure a trunk port to this VLAN when you configure the port that belongs to the VLAN using the port command in the VLAN view.

D.

In the VLAN view, you can use the undo port command to delete the port of the default VLAN 1.

Question 43

In the PPP protocol, the second handshake authentication protocol is required. Which of the following is the password in plain text?

Options:

A.

PAP

B.

CHAP

C.

MD5

D.

TCP

Question 44

When the router forwards data (without address translation), which of the following items have not been changed in forwarding? (multiple choice)

Options:

A.

Source network address

B.

Destination network address

C.

Source MAC address

D.

Destination MAC address

E.

Source port number

F.

destination port number

Question 45

Asynchronous Response Mode (ARM) is a way of allowing any node to initiate a transfer.

Options:

A.

True

B.

False

Question 46

The requirements for OSPF protocol deployment in network planning are correct (multiple choice)? (multiple choice)

Options:

A.

Select the IP address of the loopback0 interface as the router ID.

B.

Select a high-performance router as the DR/BDR in the network segment.

C.

Ensure that the backbone area (Area 0) is physically continuous and does not use virtual links (Virtual-link).

D.

Select a device with high-performance processor memory in the network as the ABR

Question 47

When the network fails, which of the following originated routes cannot be automatically corrected, and the administrator needs to reconfigure it?

Options:

A.

Link discovered by the link layer

B.

Static routing

C.

Dynamic routing

D.

All routes

Question 48

192.168.1.1 and 192.168.1.251 are on the same network segment.

Options:

A.

True

B.

False

Question 49

When the MSTP protocol is enabled, which of the following conditions do the bridges belong to the same MSTP domain? (multiple choice)

Options:

A.

Turn on root protection at the same time

B.

Have the same domain name

C.

The number of ports in the forwarding state is the same.

D.

The mapping between the VLAN and the instance is consistent.

Question 50

The two Huawei low-end switches communicate through the aggregation port. Which of the following factors must be consistent? (Multiple choice)

Options:

A.

Number of links to be aggregated

B.

The number of the port to be aggregated

C.

Duplex mode of the aggregated link

D.

STP, QoS, VLAN related configuration

Question 51

After the device is patched, you need to restart the device.

Options:

A.

True

B.

False

Question 52

How many hosts are available for a class B IP address?

Options:

A.

2M

B.

16K

C.

64K

D.

254

Question 53

Which network component is used to carry a hardware address, for example, MAC address used for communication between devices on the same link?

Options:

A.

PIC

B.

Network interface card

C.

POWER

D.

FAN

Question 54

The subnet mask of a class A address is 255.255.240.0. How many bits are used for sub-netting?

Options:

A.

9

B.

12

C.

4

D.

5

Question 55

With what kind of routers does a DRother router exchange link state information and route information? (Select multiple)

Options:

A.

DRother

B.

All OSPF neighbors

C.

BDR

D.

DR

Question 56

What action does an access port take in the process of sending packets?

Options:

A.

Exchanges the VLAN information between packets and then sends out the packet.

B.

Strips the VLAN information off the packet and then directly sends out the packet.

C.

Attaches its PVID information to the packet.

D.

Sends tag packets.

Question 57

Which of the following is valid host IP address?

Options:

A.

122.245.264.13/26

B.

192.168.2.15/28

C.

10.0.2.128/26

D.

224.0.4.5

E.

12.3.4.6/24

Question 58

Which of the following destination ports is used when the TFTP client connects to the TFTP server?

Options:

A.

20

B.

53

C.

21

D.

69

Question 59

How many bits does a MAC address have?

Options:

A.

24

B.

6

C.

12

D.

48

Question 60

Which of the following is the default control policy on Eudemon firewall?

Options:

A.

No default control policy

B.

Loose control policy

C.

Strict control policy

D.

Compromise control policy

Question 61

Which of the following OSPF versions is specific to the IPv6 technology?

Options:

A.

OSPFv2

B.

OSPFv3

C.

OSPFv4

D.

OSPFv1

Question 62

OSPF runs over the IP protocol and the IP protocol No. used by which OSPF?

Options:

A.

89

B.

512

C.

80

D.

2328

Question 63

Which of the following statements regarding collision is incorrect?

Options:

A.

Reduce the number of hosts in a network can decrease probability of collision.

B.

Each ports of switch is an independent collision domain.

C.

The collision that happens in the network connected with one port of a switch will affect another network connected with another port of the switch.

D.

The number of the collision domains will be increased if the hub in the network is replaced with the bridge.

Question 64

Where do RPC, NFS and SQL protocols reside at the OSI reference model?

Options:

A.

Transport layer

B.

Presentation layer

C.

Network layer

D.

Session layer

Question 65

Which of the following statements are correct? (Select multiple)

Options:

A.

Some of the dynamic routing protocols calculate the best path base on the cost value. However, Different routing protocol calculates the metric in different ways.

B.

The calculation of cost may be based on "single" link attribute or several link attributes such as delay, hop count, bandwidth and etc.

C.

When several dynamic routing protocols have the best routes to the same destination, all these routes will be added to the routing table.

D.

The calculation method of the preference and cost in the routing table are the same.

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Total 434 questions
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