Question 71
As shown in the figure, all routers run OSPF, which is correct in the following statement:
Question 72
Router HW1 and Router HW2 connect Network A and Network B, respectively. As shown in the figure below, if you want to set up an IPsec VPN between router HWI and router HW. (single selection).
Question 73
A workstation is connected to an Ethernet switch in the work through a super-class 5 wire, the workstation can access the entire network (that is, full connection) through the switch, but the access rate is much lower than expected, when viewing the switch interface statistics, you can detect that there are many ultra-small frames, with software to read the statistics of the workstation network card, found that there are Many FCS and frame alignment errors, what causes the machine to cause these errors?
Question 74
The multicast IP address is 2291301301, and its corresponding MAC address is :(Multilist)
Question 75
The means of the LAND attack is that the attacker sends an SVN packet message with the same source and destination addresses to the target host, the source port and the destination port are the same, and the receiver waits for the final ACK packet to be sent, the connection is always in a semi-connected state, resulting in a full limited TCP reception Waste of resources