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Product Description:
Exam Number/Code: 200-125
Exam name: CCNA Cisco Certified Network Associate CCNA (v3.0)
n questions with full explanations
Certification: Cisco Certification
Last updated on Global synchronizing

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New Cisco 200-125 Exam Dumps Collection (Question 13 - Question 22)

Q1. CORRECT TEXTA corporation wants to add security to its network. The requirements are:

u2711 Host C should be able to use a web browser (HTTP) to access the Finance Web Server.

u2711 Other types of access from host C to the Finance Web Server should be blocked.

u2711 All access from hosts in the Core or local LAN to the Finance Web Server should be blocked.

u2711 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 anumbered access listto a single outbound interface. This access list can contain no more thanthreestatements that meet these requirements.

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

u2711 All passwords have been temporarily set to u201cciscou201d.

u2711 The Core connection uses an IP address of 198.18.209.65.

u2711 The computers in the Hosts LAN have been assigned addresses of 192.168.78.1 u2013 192.168.78.254.

u2711 host A 192.168.78.1

u2711 host B 192.168.78.2

u2711 host C 192.168.78.3

u2711 host D 192.168.78.4

u2711 The Finance Web Server has been assigned an address of 172.22.146.17.

u2711 The Public Web Server in the Server LAN has been assigned an address of 172.22.146.18.

Answer:

Please see below explanation part for details answer steps:

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 u201cshow ip int briefu201d command:

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 C u2013 192.168125.3 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 192.168.125.3 host 172.22.109.17 eq 80

Then, our next two instructions are these:

u2711 Other types of access from host C to the Finance Web Server should be blocked.

u2711 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 C 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, B and D) and check to make sure you canu2019t 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


Q2. Which two steps must you perform to enable router-on-a-stick on a switch? (Choose two.)

A. Configure an IP route to the VLAN destination network.

B. Connect the Router to a trunk port.

C. Configure full duplex.

D. Configure the subinterface number exactly the same as the matching VLAN.

E. Assign the access port to a VLAN.

Answer: B,C


Q3. What should be part of a comprehensive network security plan?

A. Allow users to develop their own approach to network security.

B. Physically secure network equipment from potential access by unauthorized individuals.

C. Encourage users to use personal information in their passwords to minimize the

likelihood of passwords being forgotten.

D. Delay deployment of software patches and updates until their effect on end-user equipment is well known and widely reported

E. Minimize network overhead by deactivating automatic antivirus client updates.

Answer: B

Explanation:

Computer systems and networks are vulnerable to physical attack; therefore, procedures should be implemented to ensure that systems and networks are physically secure. Physical access to a system or network provides the opportunity for an intruder to damage, steal, or corrupt computer equipment, software, and information. When computer systems are networked with other departments or agencies for the purpose of sharing information, it is critical that each party to the network take appropriate measures to ensure that its system will not be physically breached, thereby compromising the entire network. Physical security procedures may be the least expensive to implement but can also be the most costly if not implemented. The most expensive and sophisticated computer protection software can be overcome once an intruder obtains physical access to the network.


Q4. Which command can you enter to route all traffic that is destined for 192.168.0.0/20 to a specific interface?

A. router(config)#ip route 192.168.0.0 255.255.240.0 GigabitEthernet0/1

B. router(config)#ip route 0.0.0.0 255.255.255.0 GigabitEthernet0/1

C. router(config)#ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/1

D. router(config)#ip route 192.168.0.0 255.255.255.0 GigabitEthernet0/1

Answer: A


Q5. When enabled, which feature prevents routing protocols from sending hello messages on an interface'?

A. virtual links

B. passive-interface

C. directed neighbors

D. OSPF areas

Answer: B

Explanation:

You can use thepassive-interfacecommand in order to control the advertisement of routing information. The command enables the suppression of routing updates over some interfaces while it allows updates to be exchanged normally over other interfaces.

With most routing protocols, thepassive-interfacecommand restricts outgoing advertisements only. But, when used with Enhanced Interior Gateway Routing Protocol (EIGRP), the effect is slightly different. This document demonstrates that use of the passive-interfacecommand in EIGRP suppresses the exchange of hello packets between two routers, which results in the loss of their neighbor relationship. This stops not only routing updates from being advertised, but it also suppresses incoming routing updates. This document also discusses the configuration required in order to allow the suppression

of outgoing routing updates, while it also allows incoming routing updates to be learned normally from the neighbor.


Q6. What are three advantages of VLANs? (Choose three.)

A. They establish broadcast domains in switched networks.

B. They provide a low-latency internetworking alternative to routed networks.

C. They utilize packet filtering to enhance network security.

D. They can simplify adding, moving, or changing hosts on the network.

E. They allow access to network services based on department, not physical location.

F. They provide a method of conserving IP addresses in large networks.

Answer: A,D,E


Q7. What is the effect of using the service password-encryption command?

A. Only the enable password will be encrypted.

B. It will encrypt all current and future passwords.

C. It will encrypt the secret password and remove the enable secret password from the configuration.

D. Only the enable secret password will be encrypted.

E. Only passwords configured after the command has been entered will be encrypted.

Answer: B

Explanation:

Enable vty, console, AUX passwords are configured on the Cisco device. Use the show run command to show most passwords in clear text. If the service password-encryption is used, all the passwords are encrypted. As a result, the security of device access is improved.


Q8. Under normal operations, Cisco recommends that you configure switchports on which VLAN?

A. on any VLAN except the default VLAN

B. on the management VLAN

C. on the native VLAN

D. on the default VLAN

Answer: D


Q9. What is the correct routing match to reach 172.16.1.5/32?

A. 172.16.1.0/26

B. 172.16.1.0/25

C. 172.16.1.0/24

D. the default route

Answer: A


Q10. Which statement about a router on a stick is true?

A. Its date plane router traffic for a single VI AN over two or more switches.

B. It uses multiple subinterfaces of a single interface to encapsulate traffic for different VLANs on the same subnet.

C. It requires the native VLAN to be disabled.

D. It uses multiple subinterfaces of a single interface to encapsulate traffic for different VLANs.

Answer: D

Explanation:

https://www.freeccnaworkbook.com/workbooks/ccna/configuring-inter-vlan-routing-router- on-a-stick


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