The network administrator hopes to be able to effectively use the IP address of the 192.168.176.0/25 network segment. Now that the company's marketing department has 20 hosts, which of the following address segments is best allocated to the marketing department?

• A.192.168.176.48/29
• B.192.168.176.96/27
• C.192.168.176.160/27
• D.192.168.176.0/25

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Which of the following IPv4 addresses does the host use to directly access the Internet?

• A.100.1.1.1
• B.50.1.1.1
• C.10. 1.1.1
• D.200.1.1.1

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The network shown in the figure below. All links are Ethernet links, and all interfaces of all routers run OSPF protocol, how many DRs are elected in the entire network? () (Single-choice question)

• A.4
• B.3
• C.1
• D.2

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Which of the following fields is not included in the He1lo packet of the OSPF protocol? ()

• A.Neighbor
• B.HelloInterval
• C.sysname
• D.Network Mask

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The function of telnet. read_very_eager in Telnet lib is to read data non-blockingly. Usually need to be used with the time module.

• A.True
• B.False

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