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Q11.  - (Topic 5)

What is known as "one-to-nearest" addressing in IPv6?

A. global unicast

B. anycast

C. multicast

D. unspecified address

Answer: B

Explanation:

IPv6 Anycast addresses are used for one-to-nearest communication, meaning an Anycast address is used by a device to send data to one specific recipient (interface) that is the closest out of a group of recipients (interfaces).


Q12.  - (Topic 5)

An administrator must assign static IP addresses to the servers in a network. For network 192.168.20.24/29, the router is assigned the first usable host address while the sales server is given the last usable host address. Which of the following should be entered into the IP properties box for the sales server?

A. IP address: 192.168.20.14

Subnet Mask: 255.255.255.248

Default Gateway: 192.168.20.9

B. IP address: 192.168.20.254

Subnet Mask: 255.255.255.0

Default Gateway: 192.168.20.1

C. IP address: 192.168.20.30

Subnet Mask: 255.255.255.248

Default Gateway: 192.168.20.25

D. IP address: 192.168.20.30

Subnet Mask: 255.255.255.240

Default Gateway: 192.168.20.17

E. IP address: 192.168.20.30

Subnet Mask: 255.255.255.240

Default Gateway: 192.168.20.25

Answer: C

Explanation:

For the 192.168.20.24/29 network, the usable hosts are 192.168.24.25 (router) – 192.168.24.30 (used for the sales server).


Q13.  - (Topic 8)

While troubleshooting a connection problem on a computer, you determined that the computer can ping a specific web server but it cannot connect to TCP port 80 on that server. Which reason for the problem is most likely true?

A. A VLAN number is incorrect.

B. A Route is missing

C. An ARP table entry is missing.

D. An ACL is blocking the TCP port.

Answer: D


Q14.  - (Topic 5)

Which three are characteristics of an IPv6 anycast address? (Choose three.)

A. one-to-many communication model

B. one-to-nearest communication model

C. any-to-many communication model

D. a unique IPv6 address for each device in the group

E. the same address for multiple devices in the group

F. delivery of packets to the group interface that is closest to the sending device

Answer: B,E,F

Explanation:

A new address type made specifically for IPv6 is called the Anycast Address. These IPv6 addresses are global addresses, these addresses can be assigned to more than one interface unlike an IPv6 unicast address. Anycast is designed to send a packet to the nearest interface that is a part of that anycast group.

The sender creates a packet and forwards the packet to the anycast address as the destination address which goes to the nearest router. The nearest router or interface is found by using the metric of a routing protocol currently running on the network. However in a LAN setting the nearest interface is found depending on the order the neighbors were learned. The anycast packet in a LAN setting forwards the packet to the neighbor it learned about first.


Q15.  - (Topic 8)

Which IPV6 function serves the same purpose as ARP entry verification on an IPv4 network?

A. interface ip address verification.

B. MAC address table verification

C. neighbor discovery verification

D. routing table entry verification

Answer: C


Q16. CORRECT TEXT - (Topic 4)

A corporation wants to add security to its network. The requirements are:

✑ Host B should be able to use a web browser (HTTP) to access the Finance Web Server.

✑ Other types of access from host B to the Finance Web Server should be blocked.

✑ All access from hosts in the Core or local LAN to the Finance Web Server should be blocked.

✑ All hosts in the Core and on local LAN should be able to access the Public Web Server.

You have been tasked to create and apply a numbered access list to a single outbound interface. This access list can contain no more than three statements that meet these requirements.

Access to the router CLI can be gained by clicking on the appropriate host.

✑ All passwords have been temporarily set to “cisco”.

✑ The Core connection uses an IP address of 198.18.132.65.

✑ The computers in the Hosts LAN have been assigned addresses of 192.168.201.1

– 192.168.201.254.

✑ host A 192.168.201.1

✑ host B 192.168.201.2

✑ host C 192.168.201.3

✑ host D 192.168.201.4

✑ The Finance Web Server has been assigned an address of 172.22.237.17.

✑ The Public Web Server in the Server LAN has been assigned an address of 172.22.237.18.

Answer: 

Please check the below explanation for all details.

Explanation:

We should create an access-list and apply it to the interface that is connected to the Server LAN because it can filter out traffic from both S2 and Core networks. To see which interface this is, use the “show ip interface brief” command:

Macintosh HD:Users:danielkeller:Desktop:Screen Shot 2015-11-17 at 3.24.34 PM.png From this, we know that the servers are located on the fa0/1 interface, so we will place our numbered access list here in the outbound direction.

Corp1#configure terminal

Our access-list needs to allow host B – 192.168125.2 to the Finance Web Server 172.22.109.17 via HTTP (port 80), so our first line is this:

Corp1(config)#access-list 100 permit tcp host 192.168.125.2 host 172.22.109.17 eq 80

Then, our next two instructions are these:

✑ Other types of access from host B to the Finance Web Server should be blocked.

✑ All access from hosts in the Core or local LAN to the Finance Web Server should be blocked.

This can be accomplished with one command (which we need to do as our ACL needs to be no more than 3 lines long), blocking all other access to the finance web server: Corp1(config)#access-list 100 deny ip any host 172.22.109.17

Our last instruction is to allow all hosts in the Core and on the local LAN access to the Public Web Server (172.22.109.18)

Corp1(config)#access-list 100 permit ip host 172.22.109.18 any Finally, apply this access-list to Fa0/1 interface (outbound direction) Corp1(config)#interface fa0/1

Corp1(config-if)#ip access-group 100 out

Notice: We have to apply the access-list to Fa0/1 interface (not Fa0/0 interface) so that the access-list can filter traffic coming from both the LAN and the Core networks.

To verify, just click on host B to open its web browser. In the address box type

http://172.22.109.17 to check if you are allowed to access Finance Web Server or not. If

your configuration is correct then you can access it.

Click on other hosts (A, C and D) and check to make sure you can’t access Finance Web Server from these hosts. Then, repeat to make sure they can reach the public server at 172.22.109.18. Finally, save the configuration

Corp1(config-if)#end

Corp1#copy running-config startup-config


Q17.  - (Topic 5)

Which IPv6 address is the equivalent of the IPv4 interface loopback address 127.0.0.1?

A. ::1

B. ::

C. 2000::/3

D. 0::/10

Answer: A

Explanation:

In IPv6 the loopback address is written as, ::1

This is a 128bit number, with the first 127 bits being '0' and the 128th bit being '1'. It's just a single address, so could also be written as ::1/128.


Q18.  - (Topic 8)

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

A. bus

B. star

C. mesh

D. ring

Answer: B


Q19.  - (Topic 8)

If a router has four interfaces and each interface is connected to four switches, how many broadcast domains are present on the router?

A. 1

B. 2

C. 4

D. 8

Answer: C


Q20.  - (Topic 3)

Refer to the exhibit.

The Lakeside Company has the internetwork in the exhibit. The administrator would like to

reduce the size of the routing table on the Central router. Which partial routing table entry in the Central router represents a route summary that represents the LANs in Phoenix but no additional subnets?

A. 10.0.0.0/22 is subnetted, 1 subnets

D 10.0.0.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1

B. 10.0.0.0/28 is subnetted, 1 subnets

D 10.2.0.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1

C. 10.0.0.0/30 is subnetted, 1 subnets

D 10.2.2.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1

D. 10.0.0.0/22 is subnetted, 1 subnets

D 10.4.0.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1

E. 10.0.0.0/28 is subnetted, 1 subnets

D 10.4.4.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1

F. 10.0.0.0/30 is subnetted, 1 subnets

D 10.4.4.4 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1

Answer: D

Explanation:

The 10.4.0.0/22 route includes 10.4.0.0/24, 10.4.1.0/24, 10.4.2.0/24 and 10.4.3.0/24 networks only.