What are the advantages of OSPF?

• A.OSPF can load balance traffic among equal-cost routes.
• B.OSPF supports area partition.
• C.OSPF supports packet authentication.
• D.OSPF supports Classless Inter-Domain Routing (CIDR).

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In the network shown in the figure, which of the following descriptions is correct.

• A.The network between SWA and SWC is the same conflict domain
• B.The network between SWA and SWC is the same broadcast domain
• C.The network between RTA and SWC is the same conflict domain
• D.The network between SWA and SWB is the same broadcast domain

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For multiple paths to the same destination network, the router needs to select by comparing the size of the Preference value. If the Preference is the same, the selection is made according to the size of the Cost value.

• A.False
• B.True

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The last option field (option) of 1Pv4 is variable-length optional information. What is the maximum length of this field? ()

• A.10B
• B.40B
• C.20B
• D.60B

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As shown in the figure, the network administrator creates VLAN2 on SWA and SWB. The ports connecting the hosts on the two switches are configured as Access ports. They are assigned to VLAN2. G0/0/1 of SWA and G0/0/2 of SWB are configured as Trunki ports. All VLANs are allowed to pass. What is needed to achieve normal communication between two hosts? () (Single-choice question)

• A.Create VLAN2 on SWC, configure G0/0/1 and G0/0/2 as trunk ports, and allow VLAN2 to pass
• B.Configure G0/0/1 on SWC as a trunk port and allow VLAN2 to pass. Set G0/0/2 as an access port. PVID is 2.
• C.Configure G0/0/1 on SWC as a teunk port and allow VLAN2 to pass through
• D.Just create BLAN2 on SWC

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