What protocol is used with L2TP to provide encryption?
Correct Answer: D
Question 27
The type of connector used on a 100BaseT Ethernet cable is:
Correct Answer: A
Question 28
What are two characteristics of the CSMA/CD access method? (Choose two.)
Correct Answer: A,D
Explanation/Reference: Main procedure for the CSMA/CD: 1. Is my frame ready for transmission? If yes, it goes on to the next point. 2. Is medium idle? If not, wait until it becomes ready 3. Start transmitting. 4. Did a collision occur? If so, go to collision detected procedure. 5. Reset retransmission counters and end frame transmission. Note: Carrier Sense Multiple Access With Collision Detection (CSMA/CD) is a media access control method used most notably in local area networking using early Ethernet technology. It uses a carrier sensing scheme in which a transmitting data station detects other signals while transmitting a frame, and stops transmitting that frame, transmits a jam signal, and then waits for a random time interval before trying to resend the frame.
Question 29
Which of the following is a Layer 2 WAN protocol?
Correct Answer: A
WAN Protocols and Their Corresponding OSI Layers
Question 30
If a router cannot determine the next hop for a packet, the router will:
Correct Answer: A
Explanation/Reference: If there is no next hop, the packets are not policy routed. A default route of a computer that is participating in computer networking is the packet forwarding rule (route) taking effect when no other route can be determined for a given Internet Protocol (IP) destination address.
