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New Cisco 200-125 Exam Dumps Collection (Question 3 - Question 12)

Q1. Which statement about upgrading a cisco ios device with TFTP is True ?

A. The Cisco IOS device must be on the same lan as the TFTP server

B. The operation is performed in passive mode

C. The operation is performed in an unencrypted format

D. The operation is performed in active mode

Answer: A

Q2. which port security mode can assist with troubleshooting by keeping count of violations?

A. access.

B. protect.

C. restrict.

D. shutdown.

Answer: C

Q3. Which address class includes network 191.168.0.1/27?

A. Class C

B. Class B

C. Class D

D. Class A

Answer: B

Q4. Which statement about RADIUS security is true?

A. It supports EAP authentication for connecting to wireless networks.

B. It provides encrypted multiprotocol support.

C. Device-administration packets are encrypted in their entirety.

D. It ensures that user activity is fully anonymous.

Answer: A

Explanation: RADIUS is an access server that uses AAA protocol. It is a system of distributed security that secures remote access to networks and network services against unauthorized access. RADIUS comprises three components:

u2711 A protocol with a frame format that utilizes User Datagram Protocol (UDP)/IP.

u2711 A server.

u2711 A client.

The server runs on a central computer typically at the customer's site, while the clients reside in the dial-up access servers and can be distributed throughout the network. Cisco has incorporated the RADIUS Client into Cisco IOS Software Release 11.1 and later and other device software.

Client/Server Model

A network access server (NAS) operates as a client of RADIUS. The client is responsible for passing user information to designated RADIUS servers, and then acting on the

response that is returned. RADIUS servers are responsible for receiving user connection requests, authenticating the user, and returning all configuration information necessary for the client to deliver service to the user. The RADIUS servers can act as proxy clients to other kinds of authentication servers.

Network Security

Transactions between the client and RADIUS server are authenticated through the use of a shared secret, which is never sent over the network. In addition, any user passwords are sent encrypted between the client and RADIUS server. This eliminates the possibility that someone snooping on an unsecured network could determine a user's password.

Flexible Authentication Mechanisms

The RADIUS server supports a variety of methods to authenticate a user. When it is provided with the user name and original password given by the user, it can support PPP, Password Authentication Protocol (PAP), or Challenge Handshake Authentication Protocol (CHAP), UNIX login, and other authentication mechanisms.

RADIUS does not support these protocols:

u2711 AppleTalk Remote Access (ARA) protocol

u2711 NetBIOS Frame Protocol Control protocol

u2711 Novell Asynchronous Services Interface (NASI)

u2711 X.25 PAD connection TACACS+ offers multiprotocol support.

Q5. Which type of attack can be mitigated by configuring the default native vlan to be unused ?

A. swich spoofing

B. cam table overflow

C. vlan hopping

D. MAC spoofing

Answer: C

Q6. What is one requirement for interfaces to run IPv6?

A. An IPv6 address must be configured on the interface.

B. An IPv4 address must be configured.

C. Stateless autoconfiguration must be enabled after enabling IPv6 on the interface.

D. IPv6 must be enabled with the ipv6 enable command in global configuration mode.

Answer: A

Explanation: To use IPv6 on your router, you must, at a minimum, enable the protocol and assign IPv6 addresses to your interfaces.

Q7. Which command can you enter to re-enable Cisco Discovery Protocol on a local router after it has been disabled?

A. Router(config)# cdp run

B. Router(config-if)# cdp enable

C. Router(config)# cdp enable

D. Router(config-if)# cdp run

Answer: B

Topic 3, Exam Set 3 (NEW)

218.Refer to exhibit.

Which command can you enter to verify link speed and duplex setting on the interface?

A. router#show ip protocols

B. router#show startup-config

C. router#show line

D. router#show interface gig 0/1

Q8. Under which circumstance is a router on a stick most appropriate?

A. When the router must route a single across multiple physical links.

B. When the router must route multiple subnets across multiple physical links.

C. When the router must route a single across single physical links.

D. When the router must route multiple subnets across single physical links.

Answer: D

Q9. Under normal operations, cisco recommends that you configure switch ports on which vlan ?

A. on the default vlan

B. on the management vlan

C. on the native vlan

D. on any vlan except the default vlan

Answer: D

Explanation:

/Reference:

http://www.cisco.com/c/en/us/support/docs/switches/catalyst-6500-series-switches/24330- 185.html

Q10. Which command can you enter to display the operational status of the network ports on a router?

A. show interface status

B. show ip interface brief

C. show running-config interface fastethernet 0/1

D. show interface switchport

Answer: B

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