Refer to the exhibit. Switch#show etherchannel summary

Answer:
D 
Explanation
Full-mesh is a network topology in which there is a direct link between all pairs of nodes. Below 
is an example of full-mesh topology. 

---

Question 78
What is a feature of WPA? 
A. 802.1x authentication 
B. preshared key 
C. TKIP/MIC encryption 
D. small Wi-Fi application 
Answer:
C 
Explanation
WPA uses Michael, a special MIC designed to help with TKIP without requiring excessive 
computation. 
Reference: 
https://www.sciencedirect.com/topics/engineering/temporal-key-integrity-protocol
 
WPA supports two authentication modes: 
– Personal 
– Enterprise 
With personal mode, we use a 
pre-shared key
. The pre-shared key is not used directly over the 
air. Instead, wireless clients and the AP use a four-way handshake that uses the pre-shared key as 
input to generate encryption keys. 
Enterprise mode uses 802.1X and an authentication server, usually a RADIUS server. 
Therefore in this question, TKIP/MIC encryption is the best choice. 
Question 79
Refer to the exhibit. 

---

R1 has taken the DROTHER role in the OSPF DR/BDR election process. Which configuration 
must an engineer implement so that R1 is elected as the DR? 
A. R1(config)#interface FastEthernet0/0 
R1(config-if)#ip ospf priority 1 
R1#clear ip ospf process 
B. R1(config)#interface FastEthernet0/0 
R1(config-if)#ip ospf priority 200 
R1#clear ip ospf process 
C. R3(config)#interface FastEthernet0/1 
R3(config-if)#ip ospf priority 200 
R3#clear ip ospf process 
D. R2(config)#interface FastEthernet0/2 
R2(config-if)#ip ospf priority 1 
R2#clear ip ospf process