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NEW QUESTION # 114
After a fault occurs in the network, the administrator finds that the configuration of a certain router has been modified through troubleshooting. What measures should the administrator take to avoid this situation from happening again? ()*
- A. The administrator should configure the permission level of all accounts except the administrator to log in to the device as
- B. The administrator should configure ACL to control that only the administrator can log in to the device
- C. The administrator should enable port-security on the routed management port
- D. The administrator should configure AAA. to authenticate and authorize users who log in to the device
Answer: A,B,D
NEW QUESTION # 115
When two OSPF routers form a 2-WAY neighbor relationship, LSDB. has been synchronized. ()
- A. False
- B. True
Answer: A
NEW QUESTION # 116
Which of the following authentication methods does not require the user name and password? ()
- A. authentication-mode none
- B. authorization-mode hwtacacs
- C. Authentication-mode hwtacacs
- D. authentication-mode local
Answer: A
NEW QUESTION # 117
In Layer 2 networking, if a loop occurs, it may cause broadcast storms.
- A. True
- B. False
Answer: A
NEW QUESTION # 118
If the Length of an Ethernet data frame/Type = 0x8100, which of the following statements is correct? ()
- A. There must be a TCP header in the upper layer of this data frame
- B. There must be an IP header in the upper layer of this data frame
- C. This data frame must carry VLAN TAG
- D. There must be a UDP header in the upper layer of this data frame
Answer: C
NEW QUESTION # 119
When two switches are interconnected using link aggregation technology, which of the following conditions must be met by each member port?
- A. The physical speeds connected at both ends are the same
- B. The physical numbers connected at both ends are the same
- C. The number of physical ports connected at both ends is the same
- D. The physical ports connected at both ends use the same optical module model
Answer: A,C,D
NEW QUESTION # 120
Which of the following advantages does the single-arm routing method achieve routing intercommunication between Vlan? ()
- A. Reduce the use of IP addresses
- B. Reduce routing table entries
- C. Reduce the number of equipment
- D. Reduce the number of chain connections
Answer: D
NEW QUESTION # 121
The router running the 0SPF protocol can reach the FULL state after completing the LSDB. synchronization. ()
- A. True
- B. False
Answer: A
NEW QUESTION # 122
In the network shown in the figure below, when the 0SPF neighbor status is stable, what is the neighbor status of Router B and Router C?
- A. 2-way
- B. Down
- C. Attempt
- D. Full
Answer: A
NEW QUESTION # 123
What kind of message does the 0SPF protocol use to request the locally missing LSA? ()
- A. LSR
- B. LSU
- C. LSACK
- D. HELL0
Answer: A
NEW QUESTION # 124
How many bits are there in the VLAN ID in the VLAN frame format defined by IEEE802.1Q?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 125
What kind of message does the OSPF protocol use to confirm the received LSU message?
- A. LSA
- B. LSACK
- C. LSU
- D. LSR
Answer: B
NEW QUESTION # 126
Which packet type is used by network devices running the SNMPv1 protocol to actively send alarm information? ()
- A. Trap
- B. Response
- C. Get-Next Request
- D. Get Request
Answer: A
NEW QUESTION # 127
Which layers are not included in the TCP/IP model?
- A. Presentation layer
- B. Application layer
- C. Network layer
- D. Transport layer
Answer: C
NEW QUESTION # 128
When the IPv4 protocol is used as the network layer protocol, which field is not included in the network layer?
- A. Sequence Number
- B. TTL
- C. Destination IPv4 Address
- D. Source IPv4 Address
Answer: A
NEW QUESTION # 129
When two OSPF routers form a 2-WAY neighbor relationship, the LSDB. has been synchronized. ()
- A. False
- B. True
Answer: A
NEW QUESTION # 130
In the network shown in the figure, which of the following descriptions is correct? () (Multiple Choice Questions)
- A. The network between SWA and SWC is the same broadcast domain
- B. The network between RTA and SWC is the same conflict domain
- C. The network between SWA and SWC is the same conflict domain
- D. The network between SWA and SWB is the same broadcast domain
Answer: A,C
NEW QUESTION # 131
PPPoE sessions can only use CHAP authentication.
- A. False
- B. True
Answer: A
NEW QUESTION # 132
As shown in the figure below, which port of the following switches will be blocked?
- A. G0/0/3 of SWB
- B. SWC's G0/0/2
- C. SWC's G0/0/1
- D. G0/0/3 of SWA
Answer: C
NEW QUESTION # 133
What is the number range of Layer 2 ACLs?
- A. 2000-2999
- B. 3000-3999
- C. 6000~6031
- D. 4000~4999
Answer: D
NEW QUESTION # 134
In order to realize the launch of FIT AP, FIT AP first needs to obtain the IP address of AC. Which of the following is not included in the way FITAP obtains the IP address of AC.? ()
- A. Broadcasting method
- B. Static designation method on AP
- C. DHCP Option mode
- D. Multicast mode
Answer: A
NEW QUESTION # 135
As shown in the figure, is the description of this network topology correct? () (Single-choice question)
- A. There are 12 conflict domains in this network
- B. There are 2 broadcast domains in this network
- C. There are 6 broadcast domains in this network
- D. There are 6 conflict domains in this network
Answer: B
NEW QUESTION # 136
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