[2021-New] Cisco 200-125 Dumps With Update Exam Questions (4-13)

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200-125 Exam Questions - Online Test

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New Cisco 200-125 Exam Dumps Collection (Question 4 - Question 13)

New Questions 4

What command sequence will configure a router to run OSPF and add network 10.1.1.0/24 to area 0?

A. router ospf area 0

network 10.1.1.0 255.255.255.0 area 0

B. router ospf

network 10.1.1.0 0.0.0.255

C. router ospf 1

network 10.1.1.0 0.0.0.255 area 0

D. router ospf area 0

network 10.1.1.0 0.0.0.255 area 0

E. router ospf

network 10.1.1.0 255.255.255.0 area 0

F. router ospf 1

network 10.1.1.0 0.0.0.255

Answer: C

Explanation:

u2711 Enabling OSPF

SUMMARY STEPS

1.enable 2.configureterminal 3.router ospfprocess-id

4.networkip-addresswildcard-maskareaarea-id 5.end

DETAILED STEPS

Command or Action Purpose

Step 1 Enable

Example:

Device> enable

Enables privileged EXEC mode.

u2711 Enter your password if prompted.

Step 2 Configureterminal

Example:

Device# configure terminal Enters global configuration mode.

Step 3

router ospfprocess-id

Example:

Device(config)# router ospf 109

Enables OSPF routing and enters router configuration mode.

Step 4

Networkip-addresswildcard-maskareaarea-id

Example:

Device(config-router)# network 192.168.129.16 0.0.0.3 area 0

Defines an interface on which OSPF runs and defines the area ID for that interface.

Step 5 End

Example:

Device(config-router)# end

Exits router configuration mode and returns to privileged EXEC mode.

Reference: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/12-4t/iro-12-4t-book/iro-cfg.html#GUID-588D1301-F63C-4DAC-BF1C-C3735EB13673

New Questions 5

Why will a switch never learn a broadcast address?

A. Broadcasts only use network layer addressing.

B. A broadcast frame is never forwarded by a switch.

C. A broadcast address will never be the source address of a frame.

D. Broadcast addresses use an incorrect format for the switching table.

E. Broadcast frames are never sent to switches.

Answer: C

Explanation:

Switches dynamically learn MAC addresses based on the source MAC addresses that it sees, and since a broadcast is never the source, it will never learn the broadcast address.

New Questions 6

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

Explanation:

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

New Questions 7

Refer to the exhibit.

Given the output shown from this Cisco Catalyst 2950, what is the reason that interface FastEthernet 0/10 is not the root port for VLAN 2?

A. This switch has more than one interface connected to the root network segment in VLAN 2.

B. This switch is running RSTP while the elected designated switch is running 802.1d Spanning Tree.

C. This switch interface has a higher path cost to the root bridge than another in the topology.

D. This switch has a lower bridge ID for VLAN 2 than the elected designated switch.

Answer: C

Explanation:

Since the port is in the blocked status, we must assume that there is a shorter path to the root bridge elsewhere.

New Questions 8

Refer to the exhibit.

How should the FastEthernet0/1 ports on the switches that are shown in the exhibit be configured to allow connectivity between all devices?

A. The ports only need to be connected by a crossover cable.

B. SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode trunk

C. SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode access SwitchX(config-if)# switchport access vlan 1

D. SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode trunk SwitchX(config-if)# switchport trunk vlan 1 SwitchX(config-if)# switchport trunk vlan 10 SwitchX(config-if)# switchport trunk vlan 20

Answer: B

Explanation:

IN order for multiple VLANs to cross switches, the connection between the switches must be a trunk. The u201cswitchport mode trunku201d command is all that is needed, the individual VLANs should not be listed over that trunk interface.

New Questions 9

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

Explanation:

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

New Questions 10

Which command would you use on a Cisco router to verify the Layer 3 path to a host?

A. tracert address

B. traceroute address

C. telnet address

D. ssh address

Answer: B

Explanation:

In computing, traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop indicates the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated. Ping, on the other hand, only computes the final round-trip times from the destination point.

New Questions 11

What is one benefit of PVST+?

A. PVST+ supports Layer 3 load balancing without loops.

B. PVST+ reduces the CPU cycles for all the switches in the network.

C. PVST+ allows the root switch location to be optimized per VLAN.

D. PVST+ automatically selects the root bridge location, to provide optimized bandwidth usage.

Answer: C

Explanation:

The PVST+ provides Layer 2 load-balancing for the VLAN on which it runs. You can create different logical topologies by using the VLANs on your network to ensure that all of your links are used but that no one link is oversubscribed. Each instance of PVST+ on a VLAN has a single root switch. This root switch propagates the spanning-tree information associated with that VLAN to all other switches in the network. Because each switch has the same information about the network, this process ensures that the network topology is maintained and optimized per VLAN.

Reference: http://www.cisco.com/en/US/docs/switches/lan/catalyst3750x_3560x/software/release/12.2

_55_se/configuration/guide/swstp.html

New Questions 12

What will happen if a private IP address is assigned to a public interface connected to an ISP?

A. Addresses in a private range will not be routed on the Internet backbone.

B. Only the ISP router will have the capability to access the public network.

C. The NAT process will be used to translate this address to a valid IP address.

D. A conflict of IP addresses happens, because other public routers can use the same range.

Answer: A

Explanation:

Private RFC 1918 IP addresses are meant to be used by organizations locally within their own network only, and cannot be used globally for Internet use.

New Questions 13

Which command reveals the last method used to powercycle a router?

A. show reload

B. show boot

C. show running-config

D. show version

Answer: D

Explanation:

The u201cshow versionu201d command can be used to show the last method to powercycle (reset) a router.