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NEW QUESTION 60
Which of the following statement about Python is incorrect?
- A. Have a clear grammatical structure, simple and easy to learn, colleagues run efficiently
- B. Has a rich third-party library
- C. can be used for operation and maintenance of automation scripts, Artificial Intelligence, Data science and many other fields
- D. Is a fully open source high-level programming language
Answer: D
NEW QUESTION 61
The network administrator hopes to effectively use the IP address of the 192.168.176.0/25 network segment. Now that the company's marketing department has 20 hosts, which of the following is the best address segments allocated to the marketing department?
- A. 192.168.176.48/29
- B. 192.168.176.96/27
- C. 192.168.176.160/27
- D. 192.168.176.0/25
Answer: C
NEW QUESTION 62
As the figure shown: (Multiple Choice)
- A. Client3 belongs to VLAN30, and the command for dividing VLAN on the switch is correct
- B. Client4 belongs to VLAN40, and the command for dividing VLAN on the switch is correct
- C. Client1 belongs to VLAN10, and the command for dividing VLAN on the switch is correct
- D. Client2 belongs to VLAN20, and the switch based on the MAC address division command is correct
Answer: B,C,D
NEW QUESTION 63
In order to join the wireless network STA needs to obtain wireless network information first. Which of the following messages is used by the STA to actively obtain the SSID information?
- A. Join
- B. Probe
- C. Discovery
- D. Beacon
Answer: B
NEW QUESTION 64
When the Trunk port send the data frame, how to deal with?
- A. When the VLAN ID is the same as the PVID of the port and is a VLAN ID allowed by the port, remove the Tag and send the message
- B. When the VLAN ID is different from the PVID of the port, replace it with PVID forwarding
- C. When the VLAN ID is different from the PVID of the port, strip off the TAG and forward
- D. When the VLAN ID is different from the PVID of the port, the data frame is dropped
Answer: A
NEW QUESTION 65
How many more bytes are the packets using MPLS label double-layer nesting technology than the original IP packets?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 66
The Layer 2 Ethernet switch generates entries in the MAC address table according to the ( ) of the Ethernet frame received by the port.
- A. Destination IP address
- B. Source IP address
- C. Destination MAC address
- D. Source MAC address
Answer: D
NEW QUESTION 67
As shown in the figure below, the network and switch configuration information are shown in the figure. Which of the following statements is correct? (Multiple choice)
- A. Data frames on the two links do not contain VLAN TAG
- B. Host A and Host B can be pinged
- C. Host point and host B cannot ping
- D. The PVID of the switch GigabitEthernet0/0/1 port is 20
Answer: A,C,D
NEW QUESTION 68
Both pwd and dir commands in the VRP operating platform can view the file information under the current directory.
- A. FALSE
- B. TURE
Answer: A
NEW QUESTION 69
Which of the following statement about the main functions of the router is wrong? (Multiple choice)
- A. Establish routing tables through multiple protocols
- B. Guide data forwarding according to the routing table
- C. Realize the mutual communication between the same network disconnection equipment
- D. Forwarding according to the source IP address of the received data packet
Answer: B,C,D
NEW QUESTION 70
The election of the root switch in STP only compares the switch priority, while in RSTP, the switch priority and MAC address are compared at the same time.
- A. True
- B. False
Answer: B
NEW QUESTION 71
Switches running SIP protocol, the port needs to wait for the forwarding delay in the Learning state before it can be transformed into the Forwarding state.
- A. True
- B. False
Answer: B
NEW QUESTION 72
When the router forwards a data packet, if it does not match the corresponding detailed route and there is no default route, it will directly discard the data packet.
- A. False
- B. True
Answer: B
NEW QUESTION 73
The network shown in the figure below. The administrator hopes that RTA uses static routing, and preferentially sends data packets to RTB 's Loopback0 interface through G0/0/1 por, while G0/0/2 serves as a backup. So how to configure on RTA to achieve this requirement?
- A. ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 ip route-static 10.0.2.2 255.255.255.255 10.0.21.2
- B. ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 ip route-static 10.0.2.2 255.255.255.255 10.0.21.2 preference 40
- C. ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 ip route-static 10.0.2.2 255.255.255.255 10.0.21.2 preference 70
- D. ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 preference 70 ip route-static 10.0.2.2 255.255.255.25510.0.21.2
Answer: C
NEW QUESTION 74
The configuration information of a certain port of the switch is shown in the figure. Which of the following statements is wrong?
- A. If the VLAN TAG carried in the data frame is 100, the switch will strip off the VLAN TAG and send it out
- B. If the port receives a data frame without VLAN TAG, the switch needs to add VLAN TAG 100
- C. If the VLAN TAG carried in the data frame is 200, the switch strips off the VLAN TAG
- D. The port type is Hybrid
Answer: A
NEW QUESTION 75
In the network shown in the figure below, all routers run OSPF protocol, which device is ABR? (Multiple choice)
- A. Router D
- B. Router B
- C. Router A
- D. Router C
Answer: B,C
NEW QUESTION 76
Which of the following description about the Layer 2 Ethernet switch is incorrect?
- A. It is necessary to make certain modifications to the layer 3 header of the forwarded message, and then forward it
- B. Able to learn MAC address
- C. Forward according to the Layer 2 header information of the Ethernet frame
- D. Layer 2 Ethernet switches work at the data link layer
Answer: A
NEW QUESTION 77
After the administrator successfully logs in to the router through Telnet, and finds that the router's interface IP address cannot be allocated, the possible reasons are ()
- A. The Telnet user level is incorrectly configured
- B. The Telnet user authentication mode is incorrectly configured
- C. The administrator uses the telnet terminal software to prohibit the corresponding operation
- D. SNMP parameter is incorrectly configured
Answer: A
NEW QUESTION 78
A company has 50 private IP addresses. The administrator uses NAT technology to connect the company's network to the public network, but the company has only one public network address and is not fixed. Which of the following NAT conversion methods meets the needs?
- A. easy-ip
- B. Static NAT
- C. NAPT
- D. Basic NAT
Answer: A
NEW QUESTION 79
If the network address of a network is 192.168.1.0, then its broadcast address must be 192.168.1.255.
- A. True
- B. False
Answer: B
NEW QUESTION 80
The routing table is shown in the figure. Which of the following statements is correct? (Multiple choice)
- A. The router forwards data packets with the destination IP address 10.0.3.3 from Ethernet0/0/0
- B. Router from Ethernet0/0/0 forwarding destination IP address 10.0.2.2 packet
- C. The NextHop of the destination network 10.0.3.3/32 is not directly connected, so the router will not forward packets with the destination IP address of 10.0.3.3.
- D. The router forwards data packets with the destination IP address 10.0.12.1 from Ethernet0/0/0
Answer: A,B,D
NEW QUESTION 81
What is the Solicited-node multicast address corresponding to IPv6 address 2019:: 8:AB?
- A. FF02 :: 1 :: FF08 : AB
- B. FF02 :: 1 :: FF20 : 19
- C. FF02 :: 1 :: FE08 : AB
- D. FF02 :: FF08 : AB
Answer: A
NEW QUESTION 82
Before the STA associates with the AP, it needs to exchange some messages to obtain the SSID. What are these messages?
- A. Probe
- B. ResponseProbe Request
- C. Discovery
- D. Beacon
Answer: B
NEW QUESTION 83
Which of the following statements about link aggregation is correct?
- A. GE electrical interfaces and GE optical interfaces cannot be added to the same Eth-Trurnk interface.
- B. GE interface and FE interface cannot be added to the same Eth-Trunk interface.
- C. Eth-Trurnk interfaces cannot be nested.
- D. When two devices are connected, it is necessary to ensure that the link aggregation mode on both devices is the same.
Answer: C
NEW QUESTION 84
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