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NEW QUESTION 1
Link aggregation is a common technology in enterprise networks. Which of the following descriptions are the advantages of link aggregation technology? ()
- A. Improve safety
- B. Achieve load sharing
- C. Increase bandwidth
- D. Improve reliability
Answer: BCD
NEW QUESTION 2
According to the command output as shown in the figure, which of the following descriptions is correct? () (Multiple Choice Questions)
- A. GigabitEthernet0/0/l allows VLAN1 to pass
- B. GigabitEthernet (/0/1 does not allow VLAN1 to pass
- C. If you want to change GigabitEthernet (0/0/1 to Access port, you first need to use the command "undo port trunk Allow-pass vlan all"
- D. If you want to turn GigabitEthernet0/o/1 into an Access port, you first need to use the command "undo port trunk Allow-pass vlan 2 to 4094"
Answer: AD
NEW QUESTION 3
In a Layer 2 network with redundant links, which of the following protocols can be used to avoid loops?
- A. STP
- B. UDP
- C. ARP
- D. VRRP
Answer: A
NEW QUESTION 4
The display startup information of the AR2200 router. Regarding these information, the statement is wrong ()
- A. The system file at the next startup of the device can be modified with the command "startup system software"
- B. The running configuration file is not saved
- C. The system file used for this startup of the device is ar2220-v200r003c00spc00.cc
- D. The system file cannot be modified when the device is started next time
Answer: D
NEW QUESTION 5
The output information of a certain router is shown in the figure. Which of the following statements are correct? () (Multiple Choice Questions)
- A. The Router ID of the router is 10.0.1.1
- B. This router is DR
- C. The interface address of this router is 10.0.12.2
- D. The Router ID of the router is 10.0.2.2.
Answer: BCD
NEW QUESTION 6
If the administrator wants to completely delete the old device configuration file, the following command is correct ().
- A. clear config.zip
- B. delete /unreserveD.config.zip
- C. delete /force config.zip
- D. reset config.zip
Answer: D
NEW QUESTION 7
Which of the following port states does the RSTP protocol include? ()*
- A. Learning
- B. Discarding
- C. Listening
- D. Forwarding
Answer: ABD
NEW QUESTION 8
The switch G0/0/1 port configuration information is shown in the figure. Which VLAN data frame does the switch forward without VLANTAG? ? () (Single-choice question)
- A. 10
- B. 30
- C. 20
- D. 40
Answer: A
NEW QUESTION 9
In the MAC address table of the switch, which of the following entries will not age?
- A. Static MAC address table entry
- B. Port MAC address table entry
- C. Dynamic MAC address table entry
- D. Device MAC address table entry
Answer: A
NEW QUESTION 10
In the RSTP protocol, when the edge port receives the configuration BPDU message, it loses the edge port attribute. ()
- A. True
- B. False
Answer: A
NEW QUESTION 11
Which of the following IEEE802.11 standards only supports the 2.4GHz frequency band for communication? ()
- A. 802.11g
- B. 802.11ax
- C. 802.11n
Answer: B
NEW QUESTION 12
Which of the following levels is not a common network level in mid-sized campus network architecture?
- A. Access layer
- B. Core layer
- C. Convergence layer
- D. Network layer
Answer: D
NEW QUESTION 13
The network shown in the figure below. All links are Ethernet links, and all interfaces of all routers run OSPF protocol, how many DRs are elected in the entire network? () (Single-choice question)
- A. 2
- B. 4
- C. 3
Answer: C
NEW QUESTION 14
In the WLAN network architecture, terminal devices that support the 802.11 standard are called? ()
- A. AC
- B. STA
- C. AP
Answer: C
NEW QUESTION 15
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 16
NAPT distinguishes the IP addresses of different users through the protocol numbers in TCP, UDP, or IP packets ()
- A. True
- B. False
Answer: B
NEW QUESTION 17
Compared with the IPv4 packet header, which field is added to the IPv6 packet? ()
- A. Flow Label
- B. Version
- C. Source Address
Answer: B
NEW QUESTION 18
The MPLS label header is encapsulated between the data link layer header and the network layer header of the message. ()
- A. True
- B. False
Answer: A
NEW QUESTION 19
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