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CCNA Cisco Certified Network Associate CCNA (v3.0) Certification Exam

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Cisco 200-125 Free Practice Questions

Q1.  - (Topic 5)

What is the default Syslog facility level?

A. local4

B. local5

C. local6

D. local7

Answer: D

Explanation:

By default, Cisco IOS devices, CatOS switches, and VPN 3000 Concentrators use facility local7 while Cisco PIX Firewalls use local4 to send syslog messages. Moreover, most Cisco devices provide options to change the facility level from their default value.

Reference: http://www.ciscopress.com/articles/article.asp?p=426638

Q2.  - (Topic 7)

Refer to the exhibit.

If the devices produced the given output, what is the cause of the EtherChannel problem?

A. SW1's Fa0/1 interface is administratively shut down.

B. There is an encapsulation mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces.

C. There is an MTU mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces.

D. There is a speed mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces.

Answer: D

Explanation:

You must configure all interfaces in an EtherChannel to operate at the same speeds and duplex modes. Based on the output shown, SW1 is configured to run at 10Mb while SW2 is operating at 100 Mb.

Q3. CORRECT TEXT - (Topic 7)

Central Florida Widgets recently installed a new router in their office. Complete the network installation by performing the initial router configurations and configuring R1PV2 routing using the router command line interface (CLI) on the RC.

Configure the router per the following requirements: Name of the router is R2

Enable. secret password is cisco

The password to access user EXEC mode using the console is cisco2 The password to allow telnet access to the router is cisco3

IPV4 addresses must be configured as follows:

Ethernet network 209.165.201.0/27 - router has fourth assignable host address in subnet Serial network is 192.0.2.176/28 - router has last assignable host address in the subnet. Interfaces should be enabled.

Router protocol is RIPV2

Attention:

In practical examinations, please note the following, the actual information will prevail.

1. Name or the router is xxx

2. Enable. secret password is xxx

3. Password In access user EXEC mode using the console is xxx

4. The password to allow telnet access to the router is xxx

5. IP information

Answer:  

Router>enable Router#config terminal Router(config)#hostname R2 R2(config)#enable secret Cisco 1 R2(config)#line console 0

R2(config-line)#password Cisco 2 R2(config-line)#exit R2(config)#line vty 0 4

R2(config-line)#password Cisco 3 R2(config-line)#login

R2(config-line)#exit R2(config)#interface faO/0

R2(config-if)#ip address 209.165.201.4 255.255.255.224 R2(config)#interface s0/0/0

R2(config-if)#ip address 192.0.2.190 255.255.255.240 R2(config-if)#no shutdown

R2(config-if)#exit R2(config)#router rip R2(config-router)#version 2

R2(config-router)#network 209.165.201.0

R2(config-router)#network 192.0.2.176

R2(config-router)#end R2#copy run start

Q4.  - (Topic 8)

R1# show running-config interface Loopback0

description ***Loopback***

ip address 192.168.1.1 255.255.255.255

ip ospf 1 area 0

!

interface Ethernet0/0

description **Connected to R1-LAN** ip address 10.10.110.1 255.255.255.0

ip ospf 1 area 0

!

interface Ethernet0/1

description **Connected to L2SW**

ip address 10.10.230.1 255.255.255.0

ip ospf hello-interval 25 ip ospf 1 area 0

!

router ospf 1

log-adjacency-changes

R2# show running-config R2

!

interface Loopback0 description **Loopback**

ip address 192.168.2.2 255.255.255.255

ip ospf 2 area 0

!

interface Ethernet0/0

description **Connected to R2-LAN**

ip address 10.10.120.1 255.255.255.0

ip ospf 2 area 0

!

interface Ethernet0/1

description **Connected to L2SW**

ip address 10.10.230.2 255.255.255.0

ip ospf 2 area 0

!

router ospf 2

log-adjacency-changes

R3# show running-config R3

username R6 password CISCO36

!

interface Loopback0 description **Loopback**

ip address 192.168.3.3 255.255.255.255

ip ospf 3 area 0

!

interface Ethernet0/0

description **Connected to L2SW**

ip address 10.10.230.3 255.255.255.0

ip ospf 3 area 0

!

interface Serial1/0

description **Connected to R4-Branch1 office** ip address 10.10.240.1 255.255.255.252

encapsulation ppp ip ospf 3 area 0

!

interface Serial1/1

description **Connected to R5-Branch2 office** ip address 10.10.240.5 255.255.255.252

encapsulation ppp

ip ospf hello-interval 50 ip ospf 3 area 0

!

interface Serial1/2

description **Connected to R6-Branch3 office** ip address 10.10.240.9 255.255.255.252

encapsulation ppp ip ospf 3 area 0

ppp authentication chap

!

router ospf 3

router-id 192.168.3.3

!

R4# show running-config R4

!

interface Loopback0 description **Loopback**

ip address 192.168.4.4 255.255.255.255

ip ospf 4 area 2

!

interface Ethernet0/0

ip address 172.16.113.1 255.255.255.0

ip ospf 4 area 2

!

interface Serial1/0

description **Connected to R3-Main Branch office** ip address 10.10.240.2 255.255.255.252

encapsulation ppp ip ospf 4 area 2

!

router ospf 4

log-adjacency-changes

R5# show running-config R5

!

interface Loopback0 description **Loopback**

ip address 192.168.5.5 255.255.255.255

ip ospf 5 area 0

!

interface Ethernet0/0

ip address 172.16.114.1 255.255.255.0

ip ospf 5 area 0

!

interface Serial1/0

description **Connected to R3-Main Branch office** ip address 10.10.240.6 255.255.255.252

encapsulation ppp ip ospf 5 area 0

!

router ospf 5

log-adjacency-changes

R6# show running-config R6

username R3 password CISCO36

!

interface Loopback0 description **Loopback**

ip address 192.168.6.6 255.255.255.255

ip ospf 6 area 0

!

interface Ethernet0/0

ip address 172.16.115.1 255.255.255.0

ip ospf 6 area 0

!

interface Serial1/0

description **Connected to R3-Main Branch office** ip address 10.10.240.10 255.255.255.252

encapsulation ppp ip ospf 6 area 0

ppp authentication chap

!

router ospf 6

router-id 192.168.3.3

!

An OSPF neighbor adjacency is not formed between R3 in the main office and R5 in the Branch2 office. What is causing the problem?

A. There is an area ID mismatch.

B. There is a PPP authentication issue; a password mismatch.

C. There is an OSPF hello and dead interval mismatch.

D. There is a missing network command in the OSPF process on R5.

Answer: C

Q5.  - (Topic 8)

Which VTP mode prevents you from making changes to VLANs?

A. server

B. off

C. client

D. transparent

Answer: C

Q6.  - (Topic 4)

Which two statistics appear in show frame-relay map output? (Choose two.)

A. the number of BECN packets that are received by the router

B. the value of the local DLCI

C. the number of FECN packets that are received by the router

D. the status of the PVC that is configured on the router

E. the IP address of the local router

Answer: B,D

Explanation:

Sample “show frame-relay map” output: R1#sh frame map

Serial0/0 (up): ip 10.4.4.1 dlci 401(0x191,0x6410), dynamic, broadcast,, status defined, active

Serial0/0 (up): ip 10.4.4.3 dlci 403(0x193,0x6430), dynamic, broadcast,, status defined, active

Serial0/0 (up): ip 10.4.4.4 dlci 401(0x191,0x6410), static, CISCO, status defined, active

Q7.  - (Topic 5)

Refer to the exhibit.

All of the routers in the network are configured with the ip subnet-zero command. Which network addresses should be used for Link A and Network A? (Choose two.)

A. Network A - 172.16.3.48/26 

B. Network A - 172.16.3.128/25 

C. Network A - 172.16.3.192/26 

D. Link A - 172.16.3.0/30

E. Link A - 172.16.3.40/30

F. Link A - 172.16.3.112/30

Answer: B,D

Explanation:

Only a /30 is needed for the point to point link and sine the use of the ip subnet-zero was used, 172.16.3.0/30 is valid. Also, a /25 is required for 120 hosts and again 172.16.3.128/25 is the best, valid option.

Q8.  - (Topic 8)

Which IPV6 function serves the same purpose as ARP entry verification on an IPv4 network?

A. interface ip address verification.

B. MAC address table verification

C. neighbor discovery verification

D. routing table entry verification

Answer: C

Q9.  - (Topic 8)

Which routing protocol has the smallest default administrative distance?

A. IBGP

B. OSPF

C. IS-IS

D. EIGRP

E. RIP

Answer: D

Explanation: http://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/15986-admin-distance.html

Default Distance Value TableThis table lists the administrative distance default values of the protocols that Cisco supports:

Route Source

Default Distance Values

Connected interface 0

Static route 1

Enhanced Interior Gateway Routing Protocol (EIGRP) summary route 5

External Border Gateway Protocol (BGP) 20

Internal EIGRP 90

IGRP 100 OSPF 110

Intermediate System-to-Intermediate System (IS-IS) 115

Routing Information Protocol (RIP) 120

Exterior Gateway Protocol (EGP) 140

On Demand Routing (ODR) 160

External EIGRP 170

Internal BGP 200

Unknown* 255

Q10.  - (Topic 3)

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?

A. 10.1.1.2

B. 10.154.154.1

C. 172.16.5.1

D. 192.168.5.3

Answer: C

Explanation:

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

Q11. DRAG DROP - (Topic 6)

Drag the security features on the left to the specific security risks they help protect against on the right. (Not all options are used.)

Answer:

Q12.  - (Topic 8)

Which option describes how a switch in rapid PVST+ mode responds to a topology change?

A. It immediately deletes dynamic MAC addresses that were learned by all ports on the switch.

B. It sets a timer to delete all MAC addresses that were learned dynamically by ports in the same STP instance.

C. It sets a timer to delete dynamic MAC addresses that were learned by all ports on the switch.

D. It immediately deletes all MAC addresses that were learned dynamically by ports in the same STP instance.

Answer: D

Explanation:

Rapid PVST+This spanning-tree mode is the same as PVST+ except that is uses a rapid convergence based on the IEEE 802.1w standard. To provide rapid convergence, the rapid PVST+ immediately deletes dynamically learned MAC address entries on a per-port basis upon receiving a topology change. By contrast, PVST+ uses a short aging time for dynamically learned MAC address entries.

The rapid PVST+ uses the same configuration as PVST+ (except where noted), and the switch needs only minimal extra configuration. The benefit of rapid PVST+ is that you can migrate a large PVST+ install base to rapid PVST+ without having to learn the complexities of the MSTP configuration and without having to reprovision your network. In rapid-PVST+ mode, each VLAN runs its own spanning-tree instance up to the maximum supported.

Q13.  - (Topic 7)

An administrator is trying to ping and telnet from SwitchC to RouterC with the results shown below.

Click the console connected to RouterC and issue the appropriate commands to answer the questions.

Which will fix the issue and allow ONLY ping to work while keeping telnet disabled?

A. Correctly assign an IP address to interface fa0/1.

B. Change the ip access-group command on fa0/0 from “in” to “out”.

C. Remove access-group 106 in from interface fa0/0 and add access-group 115 in.

D. Remove access-group 102 out from interface s0/0/0 and add access-group 114 in

E. Remove access-group 106 in from interface fa0/0 and add access-group 104 in.

Answer: E

Explanation:

Let’s have a look at the access list 104:

The question does not ask about ftp traffic so we don’t care about the two first lines. The 3rd line denies all telnet traffic and the 4th line allows icmp traffic to be sent (ping). Remember that the access list 104 is applied on the inbound direction so the 5th line “access-list 104 deny icmp any any echo-reply” will not affect our icmp traffic because the “echo-reply” message will be sent over the outbound direction.

Q14.  - (Topic 3)

If IP routing is enabled, which two commands set the gateway of last resort to the default gateway? (Choose two.)

A. ip default-gateway 0.0.0.0

B. ip route 172.16.2.1 0.0.0.0 0.0.0.0

C. ip default-network 0.0.0.0

D. ip default-route 0.0.0.0 0.0.0.0 172.16.2.1

E. ip route 0.0.0.0 0.0.0.0 172.16.2.1

Answer: C,E

Explanation:

Both the “ip default-network” and “ip route 0.0.0.0 0.0.0.0 (next hop)” commands can be used to set the default gateway in a Cisco router.

Q15.  - (Topic 3)

Which parameter or parameters are used to calculate OSPF cost in Cisco routers?

A. Bandwidth

B. Bandwidth and Delay

C. Bandwidth, Delay, and MTU

D. Bandwidth, MTU, Reliability, Delay, and Load

Answer: A

Explanation:

The well-known formula to calculate OSPF cost is Cost = 108 / Bandwidth

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