NEW QUESTION 1

The following description of the Router ID of OSPF is incorrect ().*

• A. Router I
• B. Must be the IP address of an interface on the router
• C. The prerequisite for the normal operation of the OSPF protocol is that the router has a Router ID
• D. The Router ID must be specified by manual configuration
• E. The Router ID in the same area must be the same, and the Router ID in different areas can be different

Answer: ABCD

NEW QUESTION 2

The following statement about the main functions of the router is wrong ()*

• A. Realize the mutual communication between the same network disconnection equipment
• B. According to the source of the received packetIP address for forwarding
• C. Establish routing table through multiple protocols
• D. Guide data forwarding according to the routing table

Answer: ABD

NEW QUESTION 3

The network structure and OSPF partition are shown in the figure. Except for RTA in the figure, the routers RTB, RTC and RTD are all ABR routers. ()(True or False)

• A. True
• B. False

Answer: B

NEW QUESTION 4

The election of the root switch in STP only compares the priority of the switch, while in RSTP, the priority of the switch and the MAC address are compared at the same time. ()

• A. True
• B. False

Answer: B

NEW QUESTION 5

In order for the STA to obtain the SSID related information on the AP, which of the following messages is used by the AP to proactively declare the wireless network SSID information? ()

• A. Join
• B. eacon
• C. Probe
• D. Discovery

Answer: B

NEW QUESTION 6

The router running the OSPF protocol reaches the FULL state first, and then synchronizes the LSDB. ()

• A. True
• B. False

Answer: B

NEW QUESTION 7

The origin of SDN is the separation of transfer and control. The separation of transfer and control is a way to realize SDN, not the essence. ()

• A. True
• B. False

Answer: A

NEW QUESTION 8

Through sR (Segment Routing), an explicit path can be easily defined. The nodes in the network only need to maintain the SegmentRouting information to cope with the real-time and rapid development of the business. What are the following characteristics of Segment Routing?

• A. Extending the existing protocol (eg IGP) can make the existing network better and smoothly evolve
• B. SR (Segment Routing) adopts IP forwarding, no extra dimensioning is required-a label forwarding table
• C. Source routing technology is used to provide the ability to quickly exchange text between the network and upper-layer applications
• D. At the same time, it supports the centralized control mode of the controller and the distributed control mode of the transponder, providing a balance between centralized control and distributed control

Answer: ACD

NEW QUESTION 9

Which of the following IPv4 addresses can be used by a host to directly access the Internet? ()

• A. 192.168.1.1/24
• B. 172.32.1.1/24
• C. 172.16.255.254/24
• D. 10.255.255.254/24

Answer: D

NEW QUESTION 10

In the VRP interface, use the command delete vrpcfg.zip to delete a file. The file must be emptied in the recycle bin to completely delete the file. ()

• A. True
• B. False

Answer: B

NEW QUESTION 11

To ensure that the same data stream is forwarded on the same physical link, which load sharing method does Eth Trunk use?

• A. Load sharing based on data packet inbound interface
• B. Packet-based load sharing
• C. Load sharing based on application layer information
• D. Flow-based load sharing

Answer: D

NEW QUESTION 12

Which of the following statements about the edge port in the RSTP protocol is correct? ()

• A. The edge port discards the received configuration BPDU packet
• B. The edge port can be directly transferred to the Forwarding state from Disable
• C. Edge port participates in RSTP operation
• D. The interconnection ports between switches need to be set as edge ports

Answer: B

NEW QUESTION 13

The tree network topology is actually a hierarchical star structure, which is easy to expand the network scale, but the higher the level, the more serious the network problem caused by the node failure ()

• A. True
• B. False

Answer: A

NEW QUESTION 14

NAPT allows multiple private IP addresses to be mapped to the same public P address through different port numbers. The following description of the port number in NAPT is correct ().

• A. The correspondence between port numbers and private addresses must be manually configured
• B. No need to do any configuration about port number
• C. Only need to configure the range of port numbers
• D. Need to use ACL to assign port numbers

Answer: B

NEW QUESTION 15

The router forwards data according to the IP routing table, and the Layer 2 switch forwards data according to the MAC. address table

• A. True
• B. False

Answer: A

NEW QUESTION 16

Which stage in the life cycle of campus network construction is the beginning of a project? ()

• A. Network implementation
• B. Planning and design
• C. Network operation and maintenance

Answer: C

NEW QUESTION 17

What is the value of TPID. defined by IEEE802.1Q? ()

• A. 0x7200
• B. 0x8100
• C. 0x9100

Answer: C

NEW QUESTION 18

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? ()

• A. Speed up port role election
• B. Ensure that there will be no temporary loops through the synchronization mechanism
• C. Edge port
• D. Reduced the time of ForwarD.Delay

Answer: B

NEW QUESTION 19

When the FIT AP goes online, the software version will be downloaded from AC.

• A. True
• B. False

Answer: B

NEW QUESTION 20

Which of the following OSPF versions is suitable for IPv6? ()

• A. OSPFv1
• B. OSPFv2
• C. OSPFv3
• D. OSPFv4

Answer: C

NEW QUESTION 21
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