Provide an overview of the VPN protocol called Layer 2 Tunneling Protocol (L2TP).
What will be an ideal response?
L2TP took all the good features of PPTP and a Cisco protocol called Layer 2 Forwarding (L2F) and added support to run on almost any type of connection possible, from telephones to Ethernet to ultra-high-speed optical connections. The endpoint on the local LAN went from a server program to a VPN-capable router, called a VPN concentrator.
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Write out the order of elements that are contained in a queue after the following operations are performed.
What will be an ideal response? ``` myQueue.enqueue(new Integer(8)); myQueue.enqueue(new Integer(6)); Integer num1 = myQueue.dequeue(); myQueue.enqueue(new Integer(3)); myQueue.enqueue(new Integer(4)); myQueue.enqueue(new Integer(15)); myQueue.enqueue(new Integer(12)); myQueue.enqueue(new Integer(9)); myQueue.dequeue(); myQueue.dequeue(); myQueue.dequeue(); myQueue.enqueue(new Integer(19)); ```
Explain why a static mapping of names and IP addresses is impractical when the number of hosts is large.
What will be an ideal response?
Which controller type transfers data bits over multiple data lines in parallel?
A. USB controller B. SAS controller C. SATA controller D. PATA controller
The ____________________ resolves IP addresses to MAC addresses for source hosts that know the IP address of the destination host but not the MAC address.
Fill in the blank(s) with the appropriate word(s).