Computer Networking
Which of the following is considered a broadband communications channel?

microwave circuits
satellites systems
fiber optic cable
All of these
coaxial cable

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Computer Networking
You want to create a standard access list that denies the subnet of the following host: 172.16.50.172/20. Which of the following would you start your list with?

access-list 10 deny 172.16.48.0 0.0.15.255
access-list 10 deny 172.16.48.0 255.255.240.0
access-list 10 deny 172.16.64.0 0.0.31.255
access-list 10 deny 172.16.0.0 0.0.255.255

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Computer Networking
Which of the following technique is used for Time-To-Line (TTL)?

a technique used in best-effort delivery system to avoid endlessly looping packets.
a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame
All of these
One of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size.
None of these

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