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Q111. - (Topic 2) 

Refer to the exhibit. 

The MAC address table is shown in its entirety. The Ethernet frame that is shown arrives at 

the switch. 

What two operations will the switch perform when it receives this frame? (Choose two.) 

A. The switch will not forward a frame with this destination MAC address. 

B. The MAC address of 0000.00aa.aaaa will be added to the MAC Address Table. 

C. The MAC address of ffff.ffff.ffff will be added to the MAC address table. 

D. The frame will be forwarded out of all the active switch ports except for port fa0/0. 

E. The frame will be forwarded out of fa0/0 and fa0/1 only. 

F. The frame will be forwarded out of all the ports on the switch. 

Answer: B,D 

Explanation: 

If the switch already has the MAC address in its table for the destination, it will forward the frame directly to the destination port. If it was not already in its MAC table, then they frame would have been flooded out all ports except for the port that it came from. 


Q112. - (Topic 7) 

When a router makes a routing decision for a packet that is received from one network and destined to another, which portion of the packet does if replace? 

A. Layer 2 frame header and trailer 

B. Layer 3 IP address 

C. Layer 5 session 

D. Layer 4 protocol 

Answer:

Explanation: 

Router Switching Function (1.2.1.1)A primary function of a router is to forward packets toward their destination. This is accomplished by using a switching function, which is the process used by a router to accept a packet on one interface and forward it out of another interface. A key responsibility of the switching function is to encapsulate packets in the appropriate data link frame type for the outgoing data link. NOTE In this context, the term “switching” literally means moving packets from source to destination and should not be confused with the function of a Layer 2 switch. After the router has determined the exit interface using the path determination function, the router must encapsulate the packet into the data link frame of the outgoing interface. What does a router do with a packet received from one network and destined for another network? The router performs the following three major steps: 

. Step 1. De-encapsulates the Layer 3 packet by removing the Layer 2 frame header and trailer. . Step 2. Examines the destination IP address of the IP packet to find the best path in the routing table. . Step 3. If the router finds a path to the destination, it encapsulates the Layer 3 packet into a new Layer 2 frame and forwards the frame out the exit interface. 


Q113. - (Topic 5) 

Refer to the exhibit. 

Why did the device return this message? 

A. The command requires additional options or parameters 

B. There is no show command that starts with ru. 

C. The command is being executed from the wrong router mode. 

D. There is more than one show command that starts with the letters ru. 

Answer: D Explanation: 

Answer D is correct because when you type the incomplete command it will not autocomplete if there is more than one option for completing the command. In this case, there is another command that also starts with “show ru” 


Q114. - (Topic 5) 

Refer to the exhibit. 

A network administrator has configured a Catalyst 2950 switch for remote management by pasting into the console the configuration commands that are shown in the exhibit. However, a Telnet session cannot be successfully established from a remote host. What should be done to fix this problem? 

A. Change the first line to interface fastethernet 0/1. 

B. Change the first line to interface vlan 0/1. 

C. Change the fifth line to ip default-gateway 192.168.17.241. 

D. Change the fifth line to ip route 0.0.0.0 0.0.0.0 192.168.17.1. 

E. Change the sixth line to line con 0. 

Answer:

Explanation: 

The default gateway must reside on the same IP subnet as the device. Here, the subnet mask for the VLAN interface is /228. Only choice C will fix this issue, as then the default gateway is on the same subnet as the 2950. 


Q115. - (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:


Q116. - (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:


Q117. - (Topic 2) 

Refer to the exhibit. 

How many collision domains are shown? 

A. one 

B. two 

C. three 

D. four 

E. six 

F. twelve 

Answer:

Explanation: 

Hubs create single collision and broadcast domains, so in this case there will be a single collision domain for each of the two hubs. 


Q118. - (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. 


Q119. - (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 


Q120. - (Topic 5) 

Refer to the exhibit. 

For security reasons, information about RTA, including platform and IP addresses, should not be accessible from the Internet. This information should, however, be accessible to devices on the internal networks of RTA. 

Which command or series of commands will accomplish these objectives? 

A. RTA(config)#no cdp run 

B. RTA(config)#no cdp enable 

C. RTA(config)#interface s0/0 RTA(config-if)#no cdp run 

D. RTA(config)#interface s0/0 RTA(config-if)#no cdp enable 

Answer:

Explanation: 

http://www.cisco.com/en/US/tech/tk962/technologies_tech_note09186a00801aa000.shtml# topicenab 

When CDP is enabled globally using the cdp run command, it is enabled by default on all supported interfaces (except for Frame Relay multipoint subinterfaces) to send and receive CDP information. You can disable CDP on an interface that supports CDP with the no cdp enable command. 

Router#show cdp neighbors 

Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r – Repeater 

Router# On this router, CDP is enabled on Serial 1 and Ethernet 0 interfaces. Disable CDP on the Serial 1 interface and verify if the neighbor device is discovered on the serial 1 interface, as this output shows: Router#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#interface s1 Router(config-if)#no cdp enable Router(config-if)# Z Router#4w5D. %SYS-5-CONFIG_I: Configured from console by console