Free H31-211 Exam Dumps Preview

Question 1

Single choice

.
The firewall must log the traffic logs that pass, but there can be no records for the rejected traffic.

1. A

   True

2. B

   False

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Correct answerB

Question 2

Multiple choice

What kinds of frame types does HDLC have? (multiple choice)

1. A

   Information frame

2. B

   Monitoring frame

3. C

   Unnumbered frames

4. D

   Retransmission frame

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Correct answersA, B, C

Question 3

Single choice

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

1. A

   16

2. B

   8

3. C

   15

4. D

   14

5. E

   7

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Correct answerD

Question 4

Single choice

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.

1. A

   True

2. B

   False

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Correct answerA

Question 5

Single choice

Which of the following selections of objects in the top indicates that Ethernet has entered a mature stage of development?

1. A

   Twisted pair

2. B

   Coaxial electric shaft

3. C

   Single mode fiber

4. D

   Multimode fiber

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Correct answerA

Question 6

Single choice

Which of the following timers is used to prevent temporary loops when the Spanning Tree Protocol handles link failures?

1. A

   Hello Time

2. B

   Forward Delay

3. C

   Max Age

4. D

   Message Age

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Correct answerB

Question 7

Single choice

After the PPP connection is established, how many seconds does the VRP platform send Echo-Request packets every second?

1. A

   1

2. B

   5

3. C

   10

4. D

   60

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Correct answerC

Question 8

Single choice

Which of the following standardization organizations is RFC (Request pest For Comments) generated?

1. A

   IEEE

2. B

   ITU-T

3. C

   IETF

4. D

   ISO

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Correct answerC

Question 9

Single choice

According to the principle of STP protocol, all ports of the root switch are ()

1. A

   Root port

2. B

   Backup port

3. C

   Designated port

4. D

   Blocking the port

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Correct answerC

Question 10

Multiple choice

Which of the following statements about the exchange mode of the Ethernet switch are correct? (multiple choice)

1. A

   Store and Forward mode does not detect framing errors

2. B

   Cut-through mode, the switch starts to forward the frame after receiving the first 64 bytes of a frame.

3. C

   Fragment-free mode detects errors in the first 64 bytes of the frame

4. D

   Store and Forward mode discards frames with a total length of less than 64 bytes.

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Correct answersC, D

Question 11

Single choice

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

1. A

   Hops to the destination address

2. B

   Manually specified next hop address

3. C

   Link bandwidth resource information

4. D

   Whether the outgoing interface of the route aggregates the port

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Correct answerC

Question 12

Single choice

How does Hub work?

1. A

   Simplex

2. B

   Half duplex

3. C

   Full duplex

4. D

   Auto-negotiation

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Correct answerB

Question 13

Single choice

Is the Flag field in the PFP frame on the serial link usually filled with content?

1. A

   0x7E

2. B

   0xFF

3. C

   0xFE

4. D

   0x03

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Correct answerB

Question 14

Single choice

If the data link layer protocol is PPP, you can configure the static route without the next hop.

1. A

   True

2. B

   False

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Correct answerA

Question 15

Single choice

A classful route update means that the RIP carries the subnet mask information when sending a route update.

1. A

   True

2. B

   False

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Correct answerB

Question 16

Single choice

Adding a shielding layer on the outside of the twisted pair, called (), can improve the anti-electromagnetic interference capability of the twisted pair.

1. A

   STP

2. B

   UTP

3. C

   BTP

4. D

   RPR

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Correct answerA

Question 17

Single choice

75For such several network segments: 172.168.16.0, 172.168.17.0, 172.168.18.0, 172.168.19.0, which of the following network segments is best used to implement route summarization?

1. A

   172.168.16.0/21

2. B

   172.168.17.0/21

3. C

   172.168.16.0/22

4. D

   172.168.20.0/20

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Correct answerC

Question 18

Single choice

When a redundant path occurs in a Layer 2 switched network, what method can be used to prevent loop generation and improve network reliability?

1. A

   Spanning Tree Protocol

2. B

   Horizontal segmentation

3. C

   Toxicity reversal

4. D

   Shortest path tree

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Correct answerA

Question 19

Single choice

What kinds of frame types does HDLC have? (multiple choice)

1. A

   Information frame

2. B

   Monitoring frame

3. C

   Unnumbered frames

4. D

   Retransmission frame

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Correct answerA

Question 20

Single choice

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

1. A

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

2. 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.

3. 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.

4. D

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

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Correct answerA

Question 21

Single choice

Pause frames can be used for full-duplex networks for flow control.

How is it sent?

1. A

   Unicast

2. B

   Broadcast

3. C

   Multicast

4. D

   Anycast

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Correct answerC

Question 22

Single choice

Which of the following options does the IP address use to distinguish between the network part and the host part?

1. A

   Mask

2. B

   Unicast

3. C

   Broadcast

4. D

   MAC address

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Correct answerA

Question 23

Multiple choice

What are the coaxial cables that can be divided according to their diameter? (multiple choice)

1. A

   Thick coaxial cable

2. B

   Long coaxial cable short coaxial cable

3. C

   Short and thin coaxial cable

4. D

   Thin coaxial cable

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Correct answersA, D

Question 24

Single choice

Is the VLAN an abbreviation for which of the following options?

1. A

   virtual local area network

2. B

   virtual long area network

3. C

   virtual local area networking

4. D

   virtual long area networking

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Correct answerA

Question 25

Single choice

Tracert records the () of each ICMP TTL timeout message, so that the user can provide the IP address through which the message arrived at the destination.

1. A

   Destination port

2. B

   Source port

3. C

   Source IP address

4. D

   Destination IP address

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Correct answerC

Question 26

Single choice

In an OSPF network, the following description about the Router ID is incorrect.

1. A

   The router IDs must be the same in the same are

2. B

   The router IDs in different areas can be different.

3. C

   The router ID must be the IP address of an interface on the router.

4. D

   You must manually configure the specified router ID.

5. E

   The prerequisite for the normal operation of OSPF is that the router has a router ID.

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Correct answerD

Question 27

Single choice

After the switch receives the complete data frame, it performs a CRC check. After the check is passed, the frame is forwarded.

What is the forwarding mode called?

1. A

   Cut-Through

2. B

   Store-and-Forward

3. C

   Fragment-free

4. D

   Store-free

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Correct answerB

Question 28

Single choice

In the router, the configured default route is a route entry that is used by the packet during the forwarding process.

1. A

   True

2. B

   False

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Correct answerA

Question 29

Single choice

When two routers perform LSDB database synchronization, which of the following messages is used to describe their own LSDB?

1. A

   Hello

2. B

   DD

3. C

   LSR

4. D

   LSU

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Correct answerB

Question 30

Single choice

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

1. A

   True

2. B

   False

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Correct answerA

Question 31

Multiple choice

What are the types of ICMP messages? (multiple choice)

1. A

   ICMP transmission message

2. B

   ICMP error report message

3. C

   ICMP inquiry message

4. D

   ICMP application message

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Correct answersB, C

Question 32

Single choice

192.168.1.1 and 192.168.1.251 are on the same network segment.

1. A

   True

2. B

   False

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Correct answerB

Question 33

Multiple choice

Which type of port can implement VLAN tag stripping and forwarding? (multiple choice)

1. A

   Access

2. B

   Trunk

3. C

   Hybrid

4. D

   Norma

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Correct answersA, B, C

Question 34

Single choice

What is the role of the routing protocol?

1. A

   Basis for data forwarding

2. B

   Building a routing table

3. C

   Management router

4. D

   Generate an IP address

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Correct answerB

Question 35

Single choice

Which of the following port numbers can the FTP server use to listen for FTP client connections by default?

1. A

   21

2. B

   23

3. C

   25

4. D

   53

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Correct answerA

Question 36

Multiple choice

On the Eudemon firewall, NAT is enabled.
What are the functions of NAT?
(Multiple choice)

1. A

   Save public IP address

2. B

   Protecting private networks

3. C

   Facilitating network consolidation

4. D

   Improve access efficiency

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Correct answersA, B, C

Question 37

Single choice

Regarding the IP host address, which of the following statements is correct?

1. A

   The host part can be all 1

2. B

   The network segment can be all 1 or all 0

3. C

   The network segment cannot be all 1 or all 0.

4. D

   The host part can be all 0

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Correct answerC

Question 38

Single choice

I will assign you a Class C IP network 192.16.24.0.
After dividing 7 subnets, what is the maximum number of hosts per subnet?

1. A

   30

2. B

   31

3. C

   32

4. D

   33

5. E

   34

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Correct answerA

Question 39

Single choice

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

1. A

   Hub

2. B

   Bridge

3. C

   Switch

4. D

   Router

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Correct answerD

Question 40

Multiple choice

In VRP, what are the following statements about RIP route aggregation?

1. A

   RIP V1 supports route aggregation by default. You can disable route aggregation when needed.

2. B

   RIP V2 supports off route aggregation.

3. C

   RIP V1 does not support CIDR

4. D

   RIP V2 supports subnet route aggregation

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Correct answersB, C, D

Question 41

Single choice

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

1. A

   True

2. B

   False

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Correct answerA

Question 42

Multiple choice

Which of the following fields are included in the routing table? (multiple choice)

1. A

   Source address

2. B

   Next hop

3. C

   Target network

4. D

   Routing metrics

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Correct answersB, C, D

Question 43

Single choice

Which layer of the TCP/IP model does the repeater work on?

1. A

   Physical layer

2. B

   Data link layer

3. C

   Transport layer

4. D

   Application layer

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Correct answerA

Question 44

Multiple choice

Regarding the IP routing, the following correct ()? (multiple choice)

1. A

   Routing is the third layer concept in the OSI model

2. B

   IP routing is the path information that guides IP packet forwarding.

3. C

   Any route must include the following three parts: source address, destination address, and next hop.

4. D

   In the LAN, the route includes the following two parts: IP address and MAC address.

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Correct answersA, B

Question 45

Single choice

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?

1. A

   hop by hop forwarding

2. B

   host by host forwarding

3. C

   router by router forwarding

4. D

   network by network forwarding

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Correct answerA

Question 46

Multiple choice

When a router that enables proxy ARP receives an ARP request packet, it finds that the destination address of the packet is not its own.
Which operation is required?
(Multiple selection)

1. A

   Discard the message

2. B

   Find the route to the destination address

3. C

   If there is a route to the destination address, send its own MAC address to the ARP requester.

4. D

   Broadcast ARP request message

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Correct answersB, C

Question 47

Multiple choice

When a router calculates routing information, what are the routing protocols calculated using link overhead and other information? (multiple choice)

1. A

   IS-IS

2. B

   BGP

3. C

   RIP

4. D

   OSPF

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Correct answersA, D

Question 48

Multiple choice

Which commands can be used to view the configuration information of interface Serial 1/0/1? (multiple choice)

1. A

   [Quidway] display current-configuration

2. B

   [Quidway-Serial1/0/1] display this

3. C

   [Quidway] view saved-configuration

4. D

   [Quidway] show current-configuration

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Correct answersA, B

Question 49

Single choice

Which of the following topologies has a central control point, and the communication between devices is a point-to-point connection?

1. A

   Ring

2. B

   Bus

3. C

   Star

4. D

   Tree shape

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Correct answerC

Question 50

Multiple choice

Huawei routers can update system files through FTP and TFTP.
Which of the following is correct?
(multiple choice)

1. A

   Huawei router can be used as FTP client

2. B

   Huawei router can be used as FTP server

3. C

   Huawei router can be used as TFTP client

4. D

   Huawei router can be used as TFTP Server

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Correct answersA, B, C

Question 51

Single choice

180On the VRP platform, how many OSPF processes can a router enable by default?

1. A

   1~64

2. B

   1~1024

3. C

   1~64512

4. D

   1~65535

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Correct answerA

Question 52

Multiple choice

Which of the following protocol messages use the LLC sublayer? (multiple choice)

1. A

   FTP

2. B

   TFTP

3. C

   ISIS

4. D

   STP

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Correct answersC, D

Question 53

Single choice

If you need to log in to the device through Telnet or SSH, you need to configure a Telnet/SSH user.

1. A

   True

2. B

   False

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Correct answerA

Question 54

Single choice

The HTTP protocol uses TCP communication, and the default port is

1. A

   80

2. B

   8080

3. C

   110

4. D

   25

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Correct answerA

Question 55

Multiple choice

Which parameters must be specified to configure a static MAP in a Frame Relay package? (multiple choice)

1. A

   Local DLCI

2. B

   Peer DLCI

3. C

   Local protocol address

4. D

   The protocol address of the peer

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Correct answersA, D

Question 56

Multiple choice

Regarding the OSPF neighbor router, what are the following statements correct? (multiple choice)

1. A

   The OSPF interface sends Hello packets to discover neighbors.

2. B

   The router that receives the Hello packet sent by the peer router becomes the neighbor relationship.

3. C

   The OSPF router that receives the Hello packet checks the parameters defined in the packet. If the two parties agree, the neighbor relationship will be formed.

4. D

   Neighbor discovery is equivalent to adjacency

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Correct answersA, C