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Q11. - (Topic 3) 

Refer to the graphic. 

R1 is unable to establish an OSPF neighbor relationship with R3. What are possible reasons for this problem? (Choose two.) 

A. All of the routers need to be configured for backbone Area 1. 

B. R1 and R2 are the DR and BDR, so OSPF will not establish neighbor adjacency with R3. 

C. A static route has been configured from R1 to R3 and prevents the neighbor adjacency from being established. 

D. The hello and dead interval timers are not set to the same values on R1 and R3. 

E. EIGRP is also configured on these routers with a lower administrative distance. 

F. R1 and R3 are configured in different areas. 

Answer: D,F 

Explanation: 

This question is to examine the conditions for OSPF to create neighborhood. 

So as to make the two routers become neighbors, each router must be matched with the 

following items: 

1.

 The area ID and its types; 

2.

 Hello and failure time interval timer; 

3.

 OSPF Password (Optional); 


Q12. - (Topic 3) 

The command ip route 192.168.100.160 255.255.255.224 192.168.10.2 was issued on a router. No routing protocols or other static routes are configured on the router. Which statement is true about this command? 

A. The interface with IP address 192.168.10.2 is on this router. 

B. The command sets a gateway of last resort for the router. 

C. Packets that are destined for host 192.168.100.160 will be sent to 192.168.10.2. 

D. The command creates a static route for all IP traffic with the source address 

192.168.100.160. 

Answer:

Explanation: 

With 160 it's actually network address of /27 so any address within the range of .160-.191 network will be sent to 192.168.10.2 


Q13. - (Topic 1) 

Which network device functions only at Layer 1 of the OSI model? A. Option A 

B. Option B 

C. Option C 

D. Option D 

E. Option E 

Answer:

Explanation: 

Most hubs are amplifying the electrical signal; therefore, they are really repeaters with several ports. Hubs and repeaters are Layer 1 (physical layer) devices. 


Q14. - (Topic 3) 

A network administrator is troubleshooting the OSPF configuration of routers R1 and R2. The routers cannot establish an adjacency relationship on their common Ethernet link. 

The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2. Based on the information in the graphic, what is the cause of this problem? 

A. The OSPF area is not configured properly. 

B. The priority on R1 should be set higher. 

C. The cost on R1 should be set higher. 

D. The hello and dead timers are not configured properly. 

E. A backup designated router needs to be added to the network. 

F. The OSPF process ID numbers must match. 

Answer:

Explanation: 

In OSPF, the hello and dead intervals must match and here we can see the hello interval is set to 5 on R1 and 10 on R2. The dead interval is also set to 20 on R1 but it is 40 on R2. 


Q15. - (Topic 7) 

What is one requirement for interfaces to run IPv6? 

A. An IPv6 address must be configured on the interface. 

B. An IPv4 address must be configured. 

C. Stateless autoconfiguration must be enabled after enabling IPv6 on the interface. 

D. IPv6 must be enabled with the ipv6 enable command in global configuration mode. 

Answer:

Explanation: To use IPv6 on your router, you must, at a minimum, enable the protocol and assign IPv6 addresses to your interfaces. 


Q16. - (Topic 3) 

Refer to the exhibit. 

PC1 pings PC2. What three things will CORE router do with the data that is received from PC1? (Choose three.) 

A. The data frames will be forwarded out interface FastEthernet0/1 of CORE router. 

B. The data frames will be forwarded out interface FastEthernet1/0 of CORE router. 

C. CORE router will replace the destination IP address of the packets with the IP address of PC2. 

D. CORE router will replace the MAC address of PC2 in the destination MAC address of the frames. 

E. CORE router will put the IP address of the forwarding FastEthernet interface in the place of the source IP address in the packets. 

F. CORE router will put the MAC address of the forwarding FastEthernet interface in the place of the source MAC address. 

Answer: B,D,F 

Explanation: 

The router will forward the frames out the interface toward the destination – B is correct. Since the router will has the end station already in it’s MAC table as see by the “show arp” command, it will replace the destination MAC address to that of PC2 – D is correct. The router will then replace the source IP address to 172.16.40.1 – E is correct. 


Q17. DRAG DROP - (Topic 5) 

Drag the appropriate command on the left to the configuration task it accomplishes. (Not all options are used.) 

Answer: 


Q18. - (Topic 7) 

Which device allows users to connect to the network using a single or double radio? 

A. access point 

B. switch 

C. wireless controller 

D. firewall 

Answer:


Q19. - (Topic 3) 

On a live network, which commands will verify the operational status of router interfaces? (Choose two.) 

A. Router# show interfaces 

B. Router# show ip protocols 

C. Router# debug interface 

D. Router# show ip interface brief 

E. Router# show start 

Answer: A,D 

Explanation: 

Only two commands “show interfaces” and “show ip interface brief” reveal the status of router interfaces (up/up, for example). 


Q20. DRAG DROP - (Topic 4) 

Drag the definition on the left to the correct term on the right. Not all definitions on the left will be used. 

Answer: