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New Cisco 200-125 Exam Dumps Collection (Question 12 - Question 21)

New Questions 12

Refer to the exhibit.

Given the output for this command, if the router ID has not been manually set, what router ID will OSPF use for this router?





Answer: C


The highest IP address of all loopback interfaces will be chosen -> Loopback 0 will be chosen as the router ID.

New Questions 13

Refer to the exhibit.

When running EIGRP, what is required for RouterA to exchange routing updates with RouterC?

A. AS numbers must be changed to match on all the routers

B. Loopback interfaces must be configured so a DR is elected

C. The no auto-summary command is needed on Router A and Router C

D. Router B needs to have two network statements, one for each connected network

Answer: A


This question is to examine the understanding of the interaction between EIGRP routers. The following information must be matched so as to create neighborhood.

EIGRP routers to establish, must match the following information:

1. AS Number;

2. K value.

New Questions 14

Which three are valid modes for a switch port used as a VLAN trunk? (Choose three.)

A. transparent

B. auto

C. on

D. desirable

E. blocking

F. forwarding

Answer: B,C,D


These are the different types of trunk modes:

u2711 ON: This mode puts the port into permanent trunk mode and negotiates to convert the link into a trunk link. The port becomes a trunk port even if the adjacent port does not agree to the change.

u2711 OFF: This mode puts the port into permanent non-trunk mode and negotiates to convert the link into a non-trunk link. The port becomes a non-trunk port even if the adjacent port does not agree to the change.

u2711 Desirable: This mode causes the port to actively attempt to convert the link into a

trunk link. The port becomes a trunk port if the adjacent port is set to on, desirable, or auto mode.

u2711 Auto: This mode enables the port to convert the link into a trunk link. The port

becomes a trunk port if the adjacent port is set to on or desirable mode. This is the default mode for Fast and Gigabit Ethernet ports.

u2711 Nonegotiate: This mode puts the port into permanent trunk mode, but does not

allow the port to generate Dynamic Trunking Protocol (DTP) frames. The adjacent port must be configured manually as a trunk port to establish a trunk link.

New Questions 15

Which command encrypts all plaintext passwords?

A. Router# service password-encryption

B. Router(config)# password-encryption

C. Router(config)# service password-encryption

D. Router# password-encryption

Answer: C



The u201cservice password-encryptionu201d command allows you to encrypt all passwords on your router so they cannot be easily guessed from your running-config. This command uses a very weak encryption because the router has to be very quickly decode the passwords for its operation.

It is meant to prevent someone from looking over your shoulder and seeing the password, that is all. This is configured in global configuration mode.

New Questions 16

The network administrator has been asked to give reasons for moving from IPv4 to IPv6. What are two valid reasons for adopting IPv6 over IPv4? (Choose two.)

A. no broadcast

B. change of source address in the IPv6 header

C. change of destination address in the IPv6 header

D. Telnet access does not require a password

E. autoconfiguration


Answer: A,E


IPv6 does not use broadcasts, and autoconfiguration is a feature of IPV6 that allows for hosts to automatically obtain an IPv6 address.

New Questions 17

Which command can you use to manually assign a static IPv6 address to a router interface?

A. ipv6 autoconfig 2001:db8:2222:7272::72/64

B. ipv6 address 2001:db8:2222:7272::72/64

C. ipv6 address PREFIX_1 ::1/64

D. ipv6 autoconfig

Answer: B


To assign an IPv6 address to an interface, use the u201cipv6 addressu201d command and specify the IP address you wish to use.

New Questions 18

Which command is used to enable CHAP authentication, with PAP as the fallback method, on a serial interface?

A. Router(config-if)# ppp authentication chap fallback ppp

B. Router(config-if)# ppp authentication chap pap

C. Router(config-if)# authentication ppp chap fallback ppp

D. Router(config-if)# authentication ppp chap pap

Answer: B


This command tells the router first to use CHAP and then go to PAP if CHAP isn't available.

New Questions 19

Which two benefits are provided by creating VLANs? (Choose two.)

A. added security

B. dedicated bandwidth

C. provides segmentation

D. allows switches to route traffic between subinterfaces

E. contains collisions

Answer: A,C


AVLAN is a switched network that is logically segmented on an organizational basis, by

functions, project teams, or applications rather than on a physical or geographical basis. Security:

VLANs also improve security by isolating groups. High-security users can be grouped into a VLAN, possible on the same physical segment, and no users outside that VLAN can communicate with them.

LAN Segmentation

VLANs allow logical network topologies to overlay the physical switched infrastructure such that any arbitrary collection of LAN ports can be combined into an autonomous user group or community of interest. The technology logically segments the network into separate Layer 2 broadcast domains whereby packets are switched between ports designated to be within the same VLAN. By containing traffic originating on a particular LAN only to other LANs in the same VLAN, switched virtual networks avoid wasting bandwidth.

New Questions 20

Which command shows your active Telnet connections?

A. show cdp neigbors

B. show session

C. show users

D. show vty logins

Answer: B


The u201cshow usersu201d shows telnet/ssh connections to your router while u201cshow sessionsu201d shows telnet/ssh connections from your router (to other devices). The question asks about u201cyour active Telnet connectionsu201d, meaning connections from your router so the answer should be A.

New Questions 21

Refer to the exhibit.

The two exhibited devices are the only Cisco devices on the network. The serial network between the two devices has a mask of Given the output that is shown, what three statements are true of these devices? (Choose three.)

A. The Manchester serial address is

B. The Manchester serial address is

C. The London router is a Cisco 2610.

D. The Manchester router is a Cisco 2610.

E. The CDP information was received on port Serial0/0 of the Manchester router.

F. The CDP information was sent by port Serial0/0 of the London router.

Answer: A,C,E


From the output, we learn that the IP address of the neighbor router is and the question stated that the subnet mask of the network between two routers is Therefore there are only 2 available hosts in this network (22 u2013 2 = 2). So we can deduce the ip address (of the serial interface) of Manchester router is ->. The platform of the neighbor router is cisco 2610, as shown in the output ->.

Maybe the most difficult choice of this question is the answer E or F. Please notice that u201cInterfaceu201d refers to the local port on the local router, in this case it is the port of Manchester router, and u201cPort ID (outgoing port)u201d refers to the port on the neighbor router.

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