Question 1

Which of the following statements about static route configuration is correct?

Options :

A : The preference is mandatory.

B : The next hop is mandatory.

C : The mask parameter is optional.

D : The mask parameter is mandatory.

Answer: D

Question 2

After the server receives the DHCP REQUEST packet, if the server cannot allocate an IP address due to certain reasons, the server sends the ( ) packet as a response.

Options :

A : DHCP REFRESH

B : DHCP DISCOVER

C : DHCP REQUEST

D : DHCPNAK

Answer: D

Question 3

The routing table of a router contains the following two entries: Destination/Mask Protocol Pre Cost Nexthop Interface 9.0.0.0/8 OSPF 10 50 1.1.1.1 Serial0 9.1.0.0/16 RIP 100 5 2.2.2.2 Ethernet0 If the router needs to forward packets with the destination address of 9.1.4.5, which of the following statements is correct?

Options :

A : The router selects the first route, because the priority of OSPF is higher.

B : The router selects the second route, because this route matches the destination address 9.1.4.5 more accurately.

C : The router selects the second route, because the metric of RIP is smaller.

D : The router selects the second route, because the outbound interface is Ethernet0, which is faster than Serial0.

Answer: B

Question 4

Which of the following statements about IP routes are correct?

Options :

A : In a LAN, a route consists of the following parts: IP address and MAC address.

B : IP routes are used to guide IP packet forwarding.

C : Routing is a concept at the second layer of the OSI model.

D : Any route must contain the following information: source address, destination address, and next hop.

Answer: B

Question 5

Which of the following statements about IP routes are correct?

Options :

A : In a LAN, a route consists of the following parts: IP address and MAC address.

B : IP routes are used to guide IP packet forwarding.

C : Routing is a concept at the second layer of the OSI model.

D : Any route must contain the following information: source address, destination address, and next hop.

Answer: B

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