What are the three sources for routers to obtain routing entries? ()*
A. Aggregate routing
B. Static routing
C. Dynamic routing
D. Direct route
The administrator cannot log in to the Huawei router through Telnet, but other administrators can log in normally. What are the possible reasons for the following items? ()
A. The administrator user account has been deleted
B. The administrator user account has been disabled
C. The Telnet service of the AR2200 router has been disabled
D. The authority level of the administrator user account has been modified to 0
What are the advantages of using dynamic host configuration protocol DHCP to assign IP addresses? ()*
A. Heavy workload and difficult to manage
B. can be realized IP address reuse
C. avoid IP address conflict
D. When the configuration information changes (such as DNS), only the administrator needs to modify it on the DHCP server, which is convenient for unified management
How many planes does a network device have? ()*
A. Control plane
B. Business plane
C. Data plane
D. Management plane
The network shown in the figure. Which of the following configurations can realize that the host A can access the Internet, but the host B can not? (ABCD) (Multiple Choice Questions)
A. acl number 2000 Rule5 deny source100.0.12.0.0.0.0.255Rule 10 permit # Interface GigabitEthernet0/0/3 Traffic-filter outbound acl 2000 #
B. acl number 2000 Rule 5 permit source 100.0.13.0.0.0.0.255 Rule10 deny source100.0.12.0.0.0.0.255# Interface GigabitEthernet0/0/3 Traffic-filter outbound acl 2000 #
C. acl number 2000 Rule 5 permit source 100.0.13.0.0.0.0.255 Rule 10 deny # Interface GigabitEthernet0/0/3 Traffic-filter outbound acl 2000 #
D. acl number 2000 Rule5 deny source 100.0.12.0.0.0.0.255 Rule 10 permit source 100.0.13.0.0.0.0.255 # Interface GigabitEthernet0/0/3 Traffic-filter outbound acl 2000 #
DHCP is called Dynamic Host Configuration Protocol. It mainly assigns IP addresses and DNS information to hosts automatically. The messages used are ()
A. discover
B. Offer(Provided)
C. request
D. ACK (acknowledgement)
Which of the following statements about RA. and RS messages in IPv6 are correct? ()*
A. RS is used to request address prefix information
B. RA. Used to reply address prefix information
C. RS is used to reply address prefix information
How to add AP on AC.? ()*
A. Import AP offline
B. Automatically discover AP
C. Add online
D. Manually confirm APs in the non-certified list
Which of the following parameters need to be considered when electing a root port in STP? ()*
A. Port priority
B. Port slot number, such as G0/0/1
C. Duplex mode of the port
D. The cost of the port reaching the root switch
E. MAC address of E port
Which of the following port states does the RSTP protocol include?
A. Discarding
B. Forwarding
C. Listening
D. Learning
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