Computer Networking
Which of the following describes an industry-wide standard suite of protocols and algorithms that allows for secure data transmission over an IP-based network that functions at the layer 3 Network layer of the OSI model?

HDLC
Cable
VPN
xDSL
IPSec

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Computer Networking
The application layer of a network

consists of software being run on the computer connected to the network
establishes, maintains, and terminates virtual circuits
None of these
All of these
defines the user's port into the network

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Computer Networking
You have two switches connected together with two crossover cables for redundancy, and STP is disabled. Which of the following will happen between the switches?

The MAC forward/filter table will not update on the switch.
The routing tables on the switches will not update.
Broadcast storms will occur on the switched network.
The switches will automatically load-balance between the two links.

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