Cisco Certified Network Associate 0 (ccna)

Correct Answer: D


QUESTION 48
What are two disadvantages of a full-mesh topology? (Choose two)

1. 
   It needs a high MTU between sites.
   
2. 
   It has a high implementation cost.
   
3. 
   It must have point-to-point communication.
   
4. 
   It requires complex configuration.
   
5. 
   It works only with BGP between sites.
   

Correct Answer: BD


QUESTION 49
Drag and drop the characteristic from the left onto the IPv6 address type on the right.

A. Global Unicast Address

-> provides for one-to-one communication
-> is routable and reachable via the Internet

Link-Local Address

-> confined to a single link
-> serves as the next-hop addresses


Correct Answer: A


QUESTION 50
How does MAC learning function on a switch?

1. 
   broadcasts frames to all ports without queueing
   
2. 
   adds unknown source MAC addresses to the address table
   
3. 
   sends a retransmission request when a new frame is received
   
4. 
   sends frames with unknown destinations to a multicast group
   

Correct Answer: B


QUESTION 51
What is the purpose of classifying network traffic in QoS?

1. 
   services traffic according to its class
   
2. 
   identifies the type of traffic that will receive a particular treatment
   
3. 
   writes the class identifier of a packet to a dedicated field in the packet header
   
4. 
   configures traffic-matching rules on network devices
   

Correct Answer: B