Refer to the exhibit. Switch#show etherchannel summary

Answer:
A 
Question 15
Which characteristic differentiates the concept of authentication from authorization and 
accounting? 
A. user-activity logging 
B. service limitations 
C. consumption-based billing 
D. identity verification 
Answer:
D 
Question 16
(this question is duplicated so we removed it) 
Question 17
Refer to the exhibit. 

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Traffic that is flowing over interface TenGigabitEthernet0/0 experiences slow transfer speeds. 
What is the reason for the issue? 
A. heavy traffic congestion 
B. queuing drops 
C. a speed conflict 
D. a duplex incompatibility 
Answer:_D_Explanation'>Answer:
D 
Explanation
We see the collisions are very high compared to the packets output. The is usually the result of 
duplex mismatch (one is half-duplex, one end is full-duplex for example) 
Question 18
Which type of network attack overwhelms the target server by sending multiple packets to a port 
until the half-open TCP resources of the target are exhausted? 
A. SYN flood 
B. reflection 
C. teardrop 
D. amplification 

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Answer:
A 
Explanation
A SYN flood (half-open attack) is a type of denial-of-service (DDoS) attack which aims to make 
a server unavailable to legitimate traffic by consuming all available server resources. By 
repeatedly sending initial connection request (SYN) packets, the attacker is able to overwhelm 
all available ports on a targeted server machine, causing the targeted device to respond to 
legitimate traffic sluggishly or not at all. 
Question 19
Which interface mode must be configured to connect the lightweight APs in a centralized 
architecture? 
A. WLAN dynamic 
B. management 
C. trunk 
D. access