Question 1

Which of the following advantages does the single-arm routing method achieve routing intercommunication between Vlan? ()

Options :

A : Reduce the number of equipment

B : Reduce routing table entries

C : Reduce the use of IP addresses

D : Reduce the number of chain connections

Answer: D

Question 2

In the OSPF protocol, which of the following descriptions of DR is correct? ()

Options :

A : If the priority values of the two routers are equal, the router with the larger Router ID is selected as the DR

B : By default, all routers in this broadcast network will participate in the DR election

C : If the priority values of the two routers are different, the router with the lower priority is selected as the DR

D : DThe adjacency relationship should also be established between R and BDR

Answer: D

Question 3

There is a WeB server in the private network that needs to provide HITP services to public network users. Therefore, the network administrator needs to configure NAT on the gateway router RTA.

Options :

A : RTA-Gigabitethernet0/0/1 nat server protocol tcp global 192.168.1.1 www inside 202.10.10.18080

B : (RTA-Serial1/0/1) nat server protocol tcpglobal 192.168.1.1 www inside202.10.1 0.18080

C : (RTA-Gigabitethernet0/0/1) nat server protocol tcp global 202.10.10.1 www inside 192.168.1.18080

D : (RTA-Serial1/0/1) nat server protocol top global 202.10.10.1 www inside192.168.1.18080

Answer: D

Question 4

It is known that there are two entries in the routing table of a router. If the router wants to forward packets with the destination address of 9.1.4.5, the correct one of the following statements is ()

Options :

A : Choose the second item as the best matching item, because the cost of the RIP protocol is small

B : The second item is selected as the best matching item, because the route is a more accurate match relative to the destination 9.1.4.5

C : Select the second item as the best match, because the speed of Ethernet0 is faster than the speed of serial0

D : Chooses the first item as the best matching item, because the priority value of the ospf protocol is higher

Answer: D

Question 5

What are the advantages of the OSPF protocol? ()*

Options :

A : Support area division

B : OSPF supports load sharing for equal-cost routes

C : OSPF supports message authentication

D : OSPF supports typeless inter-domain routing (CIDR)

Answer: A,B,C,D

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