單項選擇題What is the principle reason to use a private IP address on an internal network?()

A. Subnet strategy for private companies.
B. Manage and scale the growth of the internal network.
C. Conserve public IP addresses so that we do not run out of them.
D. Allow access reserved to the devices.


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3.單項選擇題Which option is a valid IPv6 address?()

A. 2001:0000:130F::099a::12a
B. 2002:7654:A1AD:61:81AF:CCC1
C. FEC0:ABCD:WXYZ:0067::2A4
D. 2004:1:25A4:886F::1

4.單項選擇題What is known as "one-to-nearest" addressing in IPv6?()

A. global unicast
B. anycast
C. multicast
D. unspecified address

5.單項選擇題Which type of cable is used to connect the COM port of a host to the COM port of a router or switch?()

A. crossover
B. straight-through
C. rolled
D. shielded twisted-pair

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