Cisco Certified Network Associate 0 (ccna)

Correct Answer: D


QUESTION 77
Refer to the exhibit.
Gateway of last resort is 172.16.2.2 to network 0.0.0.0 10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.10.10.0/24 is directly connected, GigabitEthernet0/0/0 L 10.10.10.3/32 is directly connected, GigabitEthernet0/0/0
172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks
S 172.16.1.33/32 is directly connected, GigabitEthernet0/0/1 C 172.16.2.0/23 is directly connected, GigabitEthernet0/0/1 L 172.16.2.1/32 is directly connected, GigabitEthernet0/0/1 S* 0.0.0.0/0 [1/0] via 172.16.2.2

A packet sourced from 10.10.10.1 is destined for 172.16.3.254. What is the subnet mask of the destination route?

A. 0.0.0.0

B. 255.255.254.0
C. 255.255.255.0
D. 255.255.255.255


Correct Answer: A


QUESTION 78
What is the operating mode and role of a backup port on a shared LAN segment in Rapid PVST+?

1. 
   blocking mode and provides an alternate path toward the designated bridge
   
2. 
   listening mode and provides an alternate path toward the root bridge
   
3. 
   forwarding mode and provides the lowest-cost path to the root bridge for each VLAN
   
4. 
   learning mode and provides the shortest path toward the root bridge handling traffic away from the LAN
   

Correct Answer: A


QUESTION 79
Which DSCP per-hop forwarding behavior is divided into subclasses based on drop probability?

1. 
   class-selector
   
2. 
   assured
   
3. 
   expedited
   
4. 
   default
   

Correct Answer: B


QUESTION 80
What occurs when a switch receives a frame that has a destination that is an unknown MAC address?

1. 
   The frame is flooded to all interfaces in the VLAN to which the frame belongs.
   
2. 
   The frame is flooded to all interfaces in the switch.
   
3. 
   The frame is discarded
   
4. 
   The MAC address table of the switch is flushed