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Q11. - (Topic 3) 

Which option is a valid IPv6 address? 

A. 2001:0000:130F::099a::12a 

B. 2002:7654:A1AD:61:81AF:CCC1 

C. FEC0:ABCD:WXYZ:0067::2A4 

D. 2004:1:25A4:886F::1 

Answer:

Explanation: 

IPv6 Address Notation IPv6 addresses are denoted by eight groups of hexadecimal quartets separated by colons in between them. Following is an example of a valid IPv6 address: 2001:cdba:0000:0000:0000:0000:3257:9652 Any four-digit group of zeroes within an IPv6 address may be reduced to a single zero or altogether omitted. Therefore, the following IPv6 addresses are similar and equally valid: 2001:cdba:0000:0000:0000:0000:3257:9652 2001:cdba:0:0:0:0:3257:9652 2001:cdba::3257:9652 

Reference: http://www.ipv6.com/articles/general/IPv6-Addressing.htm 


Q12. - (Topic 4) 

The network administrator is using a Windows PC application that is called putty.exe for remote communication to a switch for network troubleshooting. Which two protocols could be used during this communication? (Choose two.) 

A. SNMP 

B. HTTP 

C. Telnet 

D. RMON 

E. SSH 

Answer: C,E 

Explanation: 

PuTTY is a free implementation of Telnet and SSH for Windows and Unix platforms, and is used to connect to Cisco and other networking devices using SSH or Telnet. 

Topic 5, Infrastructure Maintenance 


Q13. - (Topic 7) 

Which network topology allows all traffic to flow through a central hub? 

A. bus 

B. star 

C. mesh 

D. ring 

Answer:


Q14. - (Topic 4) 

How many addresses will be available for dynamic NAT translation when a router is configured with the following commands? 

Router(config)#ip nat pool TAME 209.165.201.23 209.165.201.30 netmask 

255.255.255.224 

Router(config)#ip nat inside source list 9 pool TAME 

A. 7 

B. 8 

C. 9 

D. 10 

E. 24 

F. 32 

Answer:

Explanation: 

209.165.201.23 to 209.165.201.30 provides for 8 addresses. 


Q15. - (Topic 1) 

Refer to the topology and switching table shown in the graphic. 

Host B sends a frame to Host C. What will the switch do with the frame? 

A. Drop the frame 

B. Send the frame out all ports except port 0/2 

C. Return the frame to Host B 

D. Send an ARP request for Host C 

E. Send an ICMP Host Unreachable message to Host B 

F. Record the destination MAC address in the switching table and send the frame directly to Host C 

Answer:


Q16. - (Topic 3) 

Refer to the exhibit. 

When running OSPF, what would cause router A not to form an adjacency with router B? 

A. The loopback addresses are on different subnets. 

B. The values of the dead timers on the routers are different. 

C. Route summarization is enabled on both routers. 

D. The process identifier on router A is different than the process identifier on router B. 

Answer:

Explanation: 

To form an adjacency (become neighbor), router A & B must have the same Hello interval, Dead interval and AREA numbers 


Q17. - (Topic 3) 

What does administrative distance refer to? 

A. the cost of a link between two neighboring routers 

B. the advertised cost to reach a network 

C. the cost to reach a network that is administratively set 

D. a measure of the trustworthiness of a routing information source 

Answer:

Reference: http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094195.shtml 

Administrative distance is the feature that routers use in order to select the best path when there are two or more different routes to the same destination from two different routing protocols. Administrative distance defines the reliability of a routing protocol. Each routing protocol is prioritized in order of most to least reliable (believable) with the help of an administrative distance value. 

Administrative distance is the first criterion that a router uses to determine which routing protocol to use if two protocols provide route information for the same destination. Administrative distance is a measure of the trustworthiness of the source of the routing information. The smaller the administrative distance value, the more reliable the protocol. 


Q18. - (Topic 2) 

Refer to the exhibit. 

All devices attached to the network are shown. How many collision domains are present in this network? 

A. 2 

B. 3 

C. 6 

D. 9 

E. 15 

Answer:

Explanation: 

A switch uses a separate collision domain for each port so there are a total of 9 for each device shown. In addition to this, the switch to switch connections (3) are a separate collision domain. Finally, we add the switch to router connections (2) and the router to router connection (1) for a total of 15. 


Q19. - (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 


Q20. - (Topic 7) 

Configuration of which option is required on a Cisco switch for the Cisco IP phone to work? 

A. PortFast on the interface 

B. the interface as an access port to allow the voice VLAN ID 

C. a voice VLAN ID in interface and global configuration mode 

D. Cisco Discovery Protocol in global configuration mode 

Answer:

Explanation: 

Configure the Switch Port to Carry Both Voice and Data TrafficWhen you connect an IP phone to a switch using a trunk link, it can cause high CPU utilization in the switches. As all the VLANs for a particular interface are trunked to the phone, it increases the number of STP instances the switch has to manage. This increases the CPU utilization. Trunking also causes unnecessary broadcast / multicast / unknown unicast traffic to hit the phone link. In order to avoid this, remove the trunk configuration and keep the voice and access VLAN configured along with Quality of Service (QoS). Technically, it is still a trunk, but it is called a Multi-VLAN Access Port (MVAP). Because voice and data traffic can travel through the same port, you should specify a different VLAN for each type of traffic. You can configure a switch port to forward voice and data traffic on different VLANs. Configure IP phone ports with a voice VLAN configuration. This configuration creates a pseudo trunk, but does not require you to manually prune the unnecessary VLANs. The voice VLAN feature enables access ports to carry IP voice traffic from an IP phone. The voice VLAN feature is disabled by default. The Port Fast feature is automatically enabled when voice VLAN is configured. When you disable voice VLAN, the Port Fast feature is not automatically disabled.