Which of the following are routing protocols? (Multiple Choice)

• A.OSPF.
• B.IPX.
• C.IP.
• D.BGP.

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Which of the following is unlikely to be the IPv4 packet header length?

• A.60B
• B.64B
• C.32B
• D.20B

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Trunk interfaces can send both tagged and untagged frames.

• A.TRUE
• B.FALSE

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How can the default route be generated? (Multiple Choice)

• A.Generated by link layer protocols.
• B.Generated by dynamic routing protocols.
• C.Manually configured.
• D.Automatically generated by the router.

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As shown in the broadcast network, OSPF runs on four routers and in the same area and on the same network segment. OSPF automatically elects a DR. Multiple BDRs to achieve better backup results.

• A.False
• B.True

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