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New Cisco 100-105 Exam Dumps Collection (Question 11 - Question 20)

Question No: 11

CORRECT TEXTThis topology contains 3 routers and 1 switch. Complete the topology.

Drag the appropriate device icons to the labeled Device

Drag the appropriate connections to the locations labeled Connections. Drag the appropriate IP addresses to the locations labeled IP address

(Hint: use the given host addresses and Main router information) To remove a device or connection, drag it away from the topology.

Use information gathered from the Main router to complete the configuration of any additional routers.

No passwords are required to access the Main router. The config terminal command has been disabled for the HQ router. The router does not require any configuration.

Configure each additional router with the following:

Configure the interfaces with the correct IP address and enable the interfaces. Set the password to allow console access to consolepw

Set the password to allow telnet access to telnetpw

Set the password to allow privilege mode access to privpw

Not E: Because routes are not being added to the configurations, you will not be able to ping through the internetwork.

All devices have cable autosensing capabilities disabled. All hosts are PCu2019s

Answer:

Specify appropriate devices and drag them on the "Device" boxes

For the device at the bottom-right box, we notice that it has 2 interfaces Fa0/2 and Fa0/4; moreover the link connects the PC on the right with the device on the bottom-right is a straight-through link -> it is a switch

The question stated that this topology contains 3 routers and 1 switch -> two other devices are routers

Place them on appropriate locations as following:

(Host D and host E will be automatically added after placing two routers. Click on them to access neighboring routers)

Specify appropriate connections between these devices:

+ The router on the left is connected with the Main router through FastEthernet interfaces: use a crossover cable

+ The router on the right is connected with the Main router through Serial interfaces: use a serial cable

+ The router on the right and the Switch: use a straight-through cable

+ The router on the left and the computer: use a crossover cable

(To remember which type of cable you should use, follow these tips:

- To connect two serial interfaces of 2 routers we use serial cable

- To specify when we use crossover cable or straight-through cable, we should remember:

Group 1: Router, Host, Server

Group 2: Hub, Switch

One device in group 1 + One device in group 2: use straight-through cable

Two devices in the same group: use crossover cable

For example, we use straight-through cable to connect switch to router, switch to host, hub to host, hub to server... and we use crossover cable to connect switch to switch, switch to hub, router to router, host to host.)

Assign appropriate IP addresses for interfaces:

From Main router, use show running-config command.

(Notice that you may see different IP addresses in the real CCNA exam, the ones shown above are just used for demonstration)

From the output we learned that the ip address of Fa0/0 interface of the Main router is 192.168.152.177/28. This address belongs to a subnetwork which has:

Increment: 16 (/28 = 255.255.255.240 or 1111 1111.1111 1111.1111 1111.1111 0000)

Network address: 192.168.152.176 (because 176 = 16 * 11 and 176 < 177)

Broadcast address: 192.168.152.191 (because 191 = 176 + 16 - 1)

And we can pick up an ip address from the list that belongs to this subnetwork:

192.168.152.190 and assign it to the Fa0/0 interface the router on the left

Use the same method for interface Serial0/0 with an ip address of 192.168.152.161 Increment: 16

Network address: 192.168.152.160 (because 160 = 16 * 10 and 160 < 161)

Broadcast address: 192.168.152.175 (because 176 = 160 + 16 - 1)

-> and we choose 192.168.152.174 for Serial0/0 interface of the router on the right Interface Fa0/1 of the router on the left

IP (of the computer on the left) : 192.168.152.129/28 Increment: 16

Network address: 192.168.152.128 (because 128 = 16 * 8 and 128 < 129)

Broadcast address: 192.168.152.143 (because 143 = 128 + 16 - 1)

-> we choose 192.168.152.142 from the list Interface Fa0/0 of the router on the right

IP (of the computer on the left) : 192.168.152.225/28 Increment: 16

Network address: 192.168.152.224 (because 224 = 16 * 14 and 224 < 225)

Broadcast address: 192.168.152.239 (because 239 = 224 + 16 - 1)

-> we choose 192.168.152.238 from the list

Let's have a look at the picture below to summarize

Configure two routers on the left and right with these commands: Router1 = router on the left

Assign appropriate IP addresses to Fa0/0 & Fa0/1 interfaces: Router1>enable

Router1#configure terminal Router1(config)#interface fa0/0

Router1(config-if)#ip address 192.168.152.190 255.255.255.240 Router1(config-if)#no shutdown

Router1(config-if)#interface fa0/1

Router1(config-if)#ip address 192.168.152.142 255.255.255.240 Router1(config-if)#no shutdown

Set passwords (configure on two routers)

+ Console password: Router1(config-if)#exit Router1(config)#line console 0

Router1(config-line)#password consolepw Router1(config-line)#login

Router1(config-line)#exit

+ Telnet password: Router1(config)#line vty 0 4 Router1(config-line)#password telnetpw Router1(config-line)#login Router1(config-line)#exit

+ Privilege mode password: Router1(config)#enable password privpw Save the configuration: Router1(config)#exit

Router1#copy running-config startup-config

Configure IP addresses of Router2 (router on the right) Router2>enable

Router2#configure terminal Router2(config)#interface fa0/0

Router2(config-if)#ip address 192.168.152.238 255.255.255.240 Router2(config-if)#no shutdown

Router2(config-if)#interface serial0/0

Router2(config-if)#ip address 192.168.152.174 255.255.255.240 Router2(config-if)#no shutdown

Then set the console, telnet and privilege mode passwords for Router2 as we did for Router1, remember to save the configuration when you finished.

Topic 7, Mix Questions

204.Which statement about 6to4 tunneling is true?

A. One tunnel endpoint must be configured with IPv4 only

B. It establishes a point-to-point tunnel

C. Both tunnel endpoints must be configured with IPv4 only

D. Both tunnel endpoints must support IPv4 and IPv6


Question No: 12

Which feature automatically disables Cisco Express Forwarding when it is enabled?

A. multicast

B. IP redirects

C. RIB

D. ACL logging

Answer: D

Explanation:

If you enable CiscoExpress Forwarding and then create an access list that uses the logkeyword, the packets that match the access list are not Cisco Express Forwarding switched. They are process switched. Logging disables Cisco Express Forwarding.


Question No: 13

What is the maximum number of bits that can be borrowed to create subnets if a Class B network address is being used?

A. 2

B. 6

C. 8

D. 14

E. 16

Answer: D


Question No: 14

Which option is the default switch port port-security violation mode?

A. shutdown

B. protect

C. shutdown vlan

D. restrict

Answer: A

Explanation:

Shutdownu2014This mode is the default violation mode; when in this mode, the switch will automatically force the switchport into an error disabled (err-disable) state when a violation occurs. While in this state, the switchport forwards no traffic. The switchport can be brought out of this error disabled state by issuing the errdisable recovery cause CLI command or by disabling and reenabling the switchport.

Shutdown VLANu2014This mode mimics the behavior of the shutdown mode but limits the error disabled state the specific violating VLAN.


Question No: 15

Which dynamic routing protocol uses only the hop count to determine the best path to a destination?

A. IGRP

B. RIP

C. EIGRP

D. OSPF

Answer: C


Question No: 16

Which entity assigns IPv6 addresses to end users?

A. ICANN

B. APNIC

C. RIR

D. ISPs

Answer: C


Question No: 17

Which statement about the inside interface configuration in a NAT deployment is true?

A. It is defined globally

B. It identifies the location of source addresses for outgoing packets to be translated using access or route maps.

C. It must be configured if static NAT is used

D. It identifies the public IP address that traffic will use to reach the internet.

Answer: B

Explanation:

This module describes how to configure Network Address Translation (NAT) for IP address conservation and how to configure inside and outside source addresses. This module also provides information about the benefits of configuring NAT for IP address conservation. NAT enables private IP internetworks that use nonregistered IP addresses to connect to the Internet. NAT operates on a device, usually connecting two networks, and translates the private (not globally unique) addresses in the internal network into legal addresses before packets are forwarded onto another network. NAT can be configured to advertise to the outside world only one address for the entire network. This ability provides additional security by effectively hiding the entire internal network behind that one address.

NAT is also used at the enterprise edge to allow internal users access to the Internet and to allow Internet access to internal devices such as mail servers.


Question No: 18

You have configured the host computers on a campus LAN to receive their DHCP addresses form the local router to be able to browse their corporate site. Which statement about the network environment is true?

A. It supports a DNS server for use by DHCP clients.

B. Two host computers may be assigned the same IP address.

C. The DNS server must be configured manually on each host.

D. The domain name must be configured locally on each host computer.

Answer: A

Explanation: The local router in this case is called a DHCP server. The main purpose of a DHCP server is to assign IP addresses to the clients. Besides that, a DHCP server can also specify the IP address of the DNS server and specify the domain name for the clients. For more information about configuring a DHCP server, please read: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipaddr_dhcp/configuration/12-4t/dhcp-12-4t-book/config-dhcp-server.html


Question No: 19

Refer to the exhibit.

Pierre has just installed the mail server and Switch2. For security reasons UDP packets are not permitted outbound on the Fa0/1 router interface. Pierre is now at his workstation testing the new installation and is not able to establish SMTP communication to the mail server.

What is the most likely cause for lack of communication between Pierreu2019s workstation and the mail server?

A. The crossover cable should be a straight-through cable.

B. UDP is blocked coming out of the Fa0/1 interface on the router.

C. The server should be directly connected to the router.

D. The IP addresses are all on the same network. No router is required.

Answer: A


Question No: 20

Which MTU size can cause a baby giant error?

A. 1500

B. 9216

C. 1600

D. 1518

Answer: D

Explanation: http://www.cisco.com/c/en/us/support/docs/switches/catalyst-4000-series-switches/29805-175.html


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