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The administrator plans to implement route backup by configuring static floating routes, the correct way to achieve this is ().

A. The administrator only needs to configure two static routes
B. The administrator needs to configure different protocol priority values for the main static route and the standby static route
C. The administrator only needs to configure two static routes
D. The administrator needs to configure different metric values for the main static route and the standby static route. The administrator only needs to configure two static routes

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

A. Prefix Segment is used to identify a destination address prefix in the network (Prefix)
B. Prefix Segment needs to be configured manually
C. Prefix Segment can be automatically allocated by IGP
D. Prefix Segment spreads to other network elements through the IGP protocol, which is globally visible and effective

The IPv6 address 2001: ABEF:224E:FFE2:BCC0:CD00:DDBE:8D58 cannot be abbreviated. ()

A. True
B. False

In VRPOn the platform, the command»interfacevlanit<vlan-id>»The role is (). ()

A. Configure VLAN for a port
B. Create or enter VLAN virtual interface view
C. Create a VLAN
D. No such command

Which of the following message types does DHCP contain?

A. DHCP ROLLOVER
B. DHCP OFFER
C. DHCP DISCOVER
D. DHCP REQUEST

Which of the following fields are present in both IPv6 and IPv4 packet headers? ()*

A. Version
B. Source Address
C. Next Header
D. Destination Address

The management of users by NAS devices is based on domains. Each user belongs to a domain, and a domain is a group composed of users belonging to the same domain. ()

A. True
B. False

As shown in the figure, there are three data packets captured by the administrator on the network. Which of the following statements is incorrect? (Single choice question) Source destination protocol info
10.0.12.110.0.12.2TCp50190>telnet[SYN]seq=0win=8192Len=0mss=146010.0.12.2 10.0.12.1 TCP telnet:50190 [SYN,ACK]seg-0 Ack-1 win-8192 Len-0mss=1460
10.0.12.110.0.12.2 TCP50190>telnet(ACK)seq-1Ack=1win=81921en=0

A. None of these three data packets contain application layer data
B. These three data packets represent the three-way handshake process of TCP
C. The IP address of the telnet server is 10.0.12.1. The IP address of the telnet client is 10.0.12.2
D. The telnet client uses port 50190 to establish a connection with the server

In order to join the wireless network $TA. The wireless network information needs to be obtained first. Which of the following messages is used by the STA to actively obtain the SSID information? ()

A. Discovery
B. Probe
C. Beacon
D. Join

What is the function of the command port trunk allow pass vlan all? ()

A. The opposite port connected to the port must be configured with port trunk permit vlan all at the same time
B. All VLAN data frames are allowed to pass through this port
C. The connected peer device can dynamically determine which VLAN IDs are allowed.
D. If the port default vlan3 command is configured for the connected remote device, VLAN3 cannot communicate between the two devices

At which layer of the OSI reference model do Ethernet switches operate? ( )

A. Data link layer
B. Network layer
C. Physical layer
D. Transport layer

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.
Host B cannot access the FTP service of Host A? () (Multiple Choice Questions)

A. acl number 3000
Rule 5 deny tcp source 100.0.12.0 0.0.0.255 source-port eq www destination Rule
5 deny tcp source 100.0.13.0 0.0.0.255 source-port eq ftp destination
#
Interface GigabitEthernet0/0/1
Traffic-filter inbound acl 3000
#
Interface GigabitEthernet0/0/2
Traffic-filter inbound acl 3001
#
B. acl number 3000
Rule
5
Deny tcp source 100.0.13.0 0.0.0.255 destination 100.0.12.00.0.0.255
Destination eq www
#
Acl number 3001
Rule
5 deny tcp source 100.0.12.0 0.0.0.255 destination 100.0.13.00.0.0.255
Destination eq ftp
#
Interface GigabitEthernet0/0/1
Traffic-filter inbound acl 3000
#
Interface GigabitEthernet0/0/2
Traffic-filter inbound acl 3001
C. acl number 3000
Rule
5
Deny
Tep
Source
#
Acl number 3001
Rule
5 deny top source 100.0.13.0 0.0.0.255 source-port eq ftp destination
#
Interface GigabitEthernet0/0/1
Traffic-filter inbound acl 3000
#
Interface GigabitEthernet0/0/2
Traffic-filter inbound acl 3001
#
D. acl number 3000
Rule
5
Deny tcp source 100.0.13.0 0.0.0.255 destination 100.0.12.00.0.0.255
Destination eq www
#
Acl number 3001
Rule
5 deny tcp source 100.0.12.0 0.0.0.255 destination 100.0.13.00.0.0.255
Destination eq ftp
#
Interface GigabitEthernet0/0/1
Traffic-filter inbound acl 3000
#
Interface GigabitEthernet0/0/2
Traffic-filter inbound acl 3001
#

Which of the following protocols does the RA.
message used by IPv6 stateless autoconfiguration belong to? ()

A. UDPv6
B. TCPv6
C. ICMPv6
D. IGMPv6

What is the main function of the dynamic routing protocol? ()

A. Dynamically generate routing entries
B. Manage routers
C. Generate IP address
D. Control router interface status

The configuration of the country code will affect the frequency used for actual transmission and the maximum transmission power. ()

A. True
B. False

In the network shown in the figure below, switch A and router A are connected by two links, and the two links are aggregated in manual load sharing mode. The aggregated port number is 1, and the aggregated link performs data forwarding It needs to carry VLAN TAG100, and switch A uses trunk link. Which of the following configurations should be used for switch A? ()

A. interface Eth-Trunk 1
Port link-type trunk
Port trunk allow-pass vlan 100#
Interface GigabitEthernet0/0/1Eth-trunk 1
#
Interface GigabitEthernet0/0/2Eth-trunk 1
#
B. interface Eth-Trunk 1
Ip address10.0.12.1255.255.255.0#
C. interface Vlanif 100
Ip address10.0.12.1255.255.255.0
#
D. interface Eth-Trunk 1
Mode lacp-static
Port link-type trunk
Port trunk allow-pass vlan 100#
Interface GigabitEthernet0/0/1Eth-trunk 1
#
Interface GigabitEthernet0/0/2Eth-trunk 1
#

As shown in the figure below. Which port of the following switches will be blocked? () (Single-choice question)

A. SWC’s G0/0/2
B. SWC’s G0/0/1
C. SWA’s G0/0/3
D. G0/0/3 of SWB

Which of the following IPv6 addresses is a multicast address? ()

A. FF02::2EO:FCFF:FEEF:FEC
B. FE80:2EO:FCFF:FEEF:FEC
C. FC0O:2EO:FCFF:FEEF:FEC
D. 2000::2EO:FCFF:FEEF:FEC

The role of the collaboration layer in the SDN architecture is to complete job deployment based on user intentions. OpenStack belongs to the business collaboration layer ()

A. True
B. False

The network shown in the figure below. Two switches are connected by four links. COPPER refers to electrical interface and FIBER refers to optical interface. Then which two interfaces can realize link aggregation? () (Single-choice question)

A. G0/0/3 and G0/0/2
B. G0/0/2 and G0/0/1
C. G0/0/3 and FE0/0/3
D. G0/0/2 and FE0/0/3

When using FTP for file transfer, how many TCP connections will be established? ()

A. 1
B. 3
C. 4
D. 2

The configuration information of a certain port of the switch is shown in the figure. Then, when the data frame of which VLAN is sent by this port, it carries the VLAN TAG? ()interface GigabitEtherneto/0/1 port hybriD.taggeD.vlan 2 to 3 100 port hybriD. untaggeD. vlan 4 6#

A. 2.3, 4, 6, 100
B. 1, 2, 3, 4.6, 100
C. 1, 2.3, 100
D. 2, 3, 100

Trunk ports can allow multiple VLANs to pass, including VLAN4096. ()

A. True
B. False

For multiple paths to the same destination network, the router needs to select by comparing the magnitude of the Prererence value. If the Preference is the same, the router selects according to the magnitude of the Cost value. ()

A. True
B. False

What is the role of link aggregation? ()*

A. Improve network reliability
B. Facilitate analysis of data
C. Achieve load sharing
D. Increase bandwidth

On Huawei ARG3 series routers, what authentication modes does AAA. support? ()

A. 802.1x
B. Local
C. HWTACACS
D. None

Which of the following commands can be used to check the session status of the PPPoE client? ()

A. display pppoe-client session summary
B. display ip interface brief
C. display pppoe-client sessi on packet
D. display current configuration

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? ()

A. VLAN based on MAC. address
B. VLAN based on protocol
C. VLAN based on port
D. VLAN based on subnet

Static NAT can only achieve one-to-one mapping between private addresses and public addresses ()

A. True
B. False

The basic header length of IPv6 packets is a fixed value ()

A. True
B. False

As shown in the figure, a static NAT command is deployed on router R1. When the PC accesses the Internet, the destination address in the data packet will not change. ()(True or False)

A. True
B. False

FIT AP can work independently without relying on AC. ()

A. True
B. False

When two OSPF routers form a 2TAY neighbor relationship, LSDB. has been synchronized.

A. True
B. False

IPCP dynamic address negotiation can automatically obtain the address()

A. True
B. False

If the Ethernet data frame Length/Type=0X0806, which statement is correct ()*

A. This data frame is an IEEE802.3 frame
B. The source MAC of the secondary data frame. The address must not be FFFF-FFFF-FFFF
C. The destination MAC of this data frame. The address may be FFFF-FFFF-FFFF
D. The secondary data frame is EthernetII frame

The network is shown in the figure. Which router is the BDR in this network? () (Single-choice question)

A. Router A
B. Router B
C. No BDR
D. Router C

IP route—statiC.10.0.12.0255.255.255.0192.168.1.1 About this command description is correct ()

A. This command configures a route to the 10.0.12.0 network
B. If the router learns a router with the same destination network as this route through other protocols, the router will prefer this route
C. The priority of this route is 100
D. This command configures a route to the 192.168.1.1 network

How to add AP on AC.? ()*

A. Automatically discover AP
B. Add online
C. Import AP offline
D. Manually confirm APs in the non-certified list

If during the PPP authentication process, the authenticatee sends the wrong user name and password to the authenticator, what type of message will the authenticator send to the authenticatee? ()

A. Authenticate-Reject
B. Authenticate-Nak
C. Authenticate-Ack
D. Authenticate-Reply

The output information of a certain switch is shown in the figure. Which of the following statements is correct? () (Multiple Choice Questions)

A. Switch GE0/0/1 port does not carry VLAN TAG when sending VLAN10 data frame
B. The user manually created 4 VLANs
C. The GE0/0/2 port of the switch carries VLAN TAG when sending VLAN20 data frames
D. Switch GE0/0/1 port does not carry VLAN TAG when sending VLAN20 data frame

STA. The only way to discover the wireless network is the Beacom frame sent by the AP. ()

A. True
B. False

What is correct about the SNMP protocol? ()

A. The SNMP protocol only supports sending management messages on the Ethernet link
B. SNMP uses UDP as the transport layer protocol
C. SNMP protocol uses multicast to send management messages
D. SNMP uses ICMP as the network layer protocol

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

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

Which of the following parameters is not included in the configuration BPDU of the STP protocol? ()

A. Root ID
B. Port ID
C. Bridge ID
D. VLAN ID

You can manually specify the source address or source interface of the CAPWAP tunnel on the AC. ()

A. True
B. False

The output information of the routing table of a certain router is shown in the figure. Which of the following statements is correct? () (Multiple Choice Questions)
<R1>display ip routing-table
Route Flags: R-relay, D-download to fib

A. The NextHop for this router to reach 10.0.2.2 is 10.0.12.2
B. The NextHop for this router to reach 10.0.2.2 is 10.0.21.2
C. The NextHop for this router to reach 10.0.0.1 is 10.0.21.2
D. The NextHop for this router to reach 10.0.0.1 is 10.0.12.2

Which of the following network parameters can be assigned by Dynamic Host Configuration Protocol DHCP? ()*

A. DNS address
B. IP address
C. Gateway address
D. Operating system name

Which of the following statements about Python is incorrect?

A. Python has a wealth of third-party libraries.
B. Python is a fully open source high-level programming language.
C. Python has a clear grammatical structure, is simple and easy to learn, and runs efficiently.
D. Python can be used for automated operation and maintenance scripts, artificial intelligence data science and many other fields.