[Free] 2019(Nov) EnsurePass Cisco 200-125 Dumps with VCE and PDF 151-160

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Question No.151

Which commands are required to properly configure a router to run OSPF and to add network to OSPF area 0? (Choose two.)

  1. Router(config)# router ospf 0

  2. Router(config)# router ospf 1

  3. Router(config)# router ospf area 0

  4. Router(config-router)# network 0

  5. Router(config-router)# network area 0

  6. Router(config-router)# network area 0

Correct Answer: BE


In the router ospf command, the ranges from 1 to 65535 so o is an invalid number -gt; but To configure OSPF, we need a wildcard in the quot;networkquot; statement, not a subnet mask. We also need to assgin an area to this process -gt;.

Question No.152

Refer to the exhibit. When running OSPF, what would cause router A not to form an adjacency with router B?


  1. The loopback addresses are on different subnets.

  2. The values of the dead timers on the routers are different.

  3. Route summarization is enabled on both routers.

  4. The process identifier on router A is different than the process identifier on router B.

Correct Answer: B


To form an adjacency (become neighbor), router A amp; B must have the same Hello interval, Dead interval and AREA numbers.

Question No.153

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

  1. Only the enable password will be encrypted.

  2. Only the enable secret password will be encrypted.

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

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

  5. It will encrypt all current and future passwords.

Correct Answer: E


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.

Question No.154

Refer to the exhibit. Which address and mask combination represents a summary of the routes learned by EIGRP?








Correct Answer: C


The binary version of 20 is 10100. The binary version of 16 is 10000. The binary version of 24 is 11000. The binary version of 28 is 11100.

The subnet mask is /28. The mask is


From the output above, EIGRP learned 4 routes and we need to find out the summary of them: gt; The increment should bE. 28 – 16 = 12 but 12 is not an exponentiation of 2 so we must choose 16 (24). Therefore the subnet mask is /28 (=1111 1111.1111 1111.1111

1111.11110000) =

So, the best answer should be

Question No.155

Which command encrypts all plaintext passwords?

  1. Router# service password-encryption

  2. Router(config)# password-encryption

  3. Router(config)# service password-encryption

  4. Router# password-encryption

Correct Answer: C Explanation: Command

The quot;service password-encryptionquot; 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.

Question No.156

A network administrator is trying to add a new router into an established OSPF network. The networks attached to the new router do not appear in the routing tables of the other OSPF routers. Given the information in the partial configuration shown below, what configuration error is causing this problem?

Router(config)# router ospf 1

Router(config-router)# network area 0

  1. The process id is configured improperly.

  2. The OSPF area is configured improperly.

  3. The network wildcard mask is configured improperly.

  4. The network number is configured improperly.

  5. The AS is configured improperly.

  6. The network subnet mask is configured improperly.

Correct Answer: C


When configuring OSPF, the mask used for the network statement is a wildcard mask similar to an access list. In this specific example, the correct syntax would have been quot;network area 0.quot;

Question No.157

Refer to the exhibit. What commands must be configured on the 2950 switch and the router to allow communication between host 1 and host 2? (Choose two.)


  1. Router(config)# interface fastethernet 0/0

    Router(config-if)# ip address Router(config-if)# no shut down

  2. Router(config)# interface fastethernet 0/0 Router(config-if)# no shut down Router(config)# interface fastethernet 0/0.1 Router(config-subif)# encapsulation dot1q 10

    Router(config-subif)# ip address Router(config)# interface fastethernet 0/0.2

    Router(config-subif)# encapsulation dot1q 20

    Router(config-subif)# ip address

  3. Router(config)# router eigrp 100 Router(config-router)# network Router(config-router)# network

  4. Switch1(config)# vlan database Switch1(config-vlan)# vtp domain XYZ Switch1(config-vlan)# vtp server

  5. Switch1(config)# interface fastethernet 0/1 Switch1(config-if)# switchport mode trunk

  6. Switch1(config)# interface vlan 1

Switch1(config-if)# ip default-gateway192.168.1.1

Correct Answer: BE


The router will need to use subinterfaces, where each subinterface is assigned a VLAN and IP address for each VLAN. On the switch, the connection to the router need to be configured as a trunk using the switchport mode trunk command and it will need a default gateway for VLAN 1.

Question No.158

Refer to the exhibit. According to the routing table, where will the router send a packet destined for






Correct Answer: C


The destination IP address belongs to, amp; subnets but the quot;longest prefix matchquot; algorithm will choose the most specific subnet mask -gt; the prefix quot;/29 will be chosen to route the packet. Therefore the next-hop should be -gt;.

Question No.159

What OSPF command, when configured, will include all interfaces into area 0?

A. network area 0

B. network area 0

C. network area 0

D. network all-interfaces area 0

Correct Answer: A


Example 3-1 displays OSPF with a process ID of 1 and places all interfaces configured with an IP address in area 0. The network command network area 0 dictates that you do not care ( what the IP address is, but if an IP address is enabled on any interface, place it in area 0.

Example 3-1 Configuring OSPF in a Single Area router ospf 1

network area 0

Reference: http://www.ciscopress.com/articles/article.asp?p=26919amp;seqNum=3

Question No.160

Refer to the exhibit. The network administrator must establish a route by which London workstations can forward traffic to the Manchester workstations. What is the simplest way to accomplish this?


  1. Configure a dynamic routing protocol on London to advertise all routes to Manchester.

  2. Configure a dynamic routing protocol on London to advertise summarized routes to Manchester.

  3. Configure a dynamic routing protocol on Manchester to advertise a default route to the London router.

  4. Configure a static default route on London with a next hop of

  5. Configure a static route on London to direct all traffic destined for to

  6. Configure Manchester to advertise a static default route to London.

Correct Answer: E


This static route will allow for communication to the Manchester workstations and it is better to use this more specific route than a default route as traffic destined to the Internet will then not go out the London Internet connection.

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