200-105 | The Secret of Cisco 200-105 pdf

Q4. Which feature facilitates the tagging of frames on a specific VLAN?

A. Routing

B. hairpinning

C. switching

D. encapsulation

Answer: D

Q5. What command is used to verify the DLCI destination address in a Frame Relay static configuration?

A. show frame-relay pvc

B. show frame-relay lmi

C. show frame-relay map

D. show frame relay end-to-end

Answer: C

Explanation:

Cisco Frame Relay Configurations http://www.ciscopress.com/articles/article.asp?p=170741&seqNum=9 show frame-relay map

The show frame-relay map privileged EXEC mode command shows the contents of the next hop protocol address to DLCI mapping table on the router. The table contains both dynamic mapped and static mapped entries. The below example shows a sample output of the show frame-relay map command.

Router#show frame-relay map

Serial1/2 (up): ip 172.16.1.4 dlci 401(0x191,0x6410), dynamic, broadcast,, status defined, active

Serial1/2 (up): ip 172.16.1.5 dlci 501(0x1F5,0x7C50), dynamic, broadcast,, status defined, active

Serial1/2 (up): ip 172.16.1.2 dlci 301(0x12D,0x48D0), dynamic, broadcast,, status defined, active

Q6. Which device classes are used over serial links? (Choose two)

A. DCE

B. DTE

C. LCP

D. HDLC

E. PPP

F. LMI

Answer: A,B

Q7. Refer to the exhibit.

How will the router handle a packet destined for 192.0.2.156?

A. The router will drop the packet.

B. The router will return the packet to its source.

C. The router will forward the packet via Serial2.

D. The router will forward the packet via either Serial0 or Serial1.

Answer: C

Explanation:

Router has pointed default router to 192.168.4.1 and this subnet is connected via serial 2 interface. Router does not have router for the 192.0.2.156. so it will use the default gateway 192.168.4.1. A default route identifies the gateway IP address to which the router sends all IP packets for which it does not have a learned or static route.

Q8. Which statement about switch access ports is true?

A. They drop packets with 802.1Q tags.

B. A VLAN must be assigned to an access port before it is created.

C. They can receive traffic from more than one VLAN with no voice support

D. By default, they carry traffic for VLAN 10.

Answer: A

Explanation:

"If an access port receives a packet with an 802.1Q tag in the header other than the access VLAN value, that port drops the packet without learning its MAC source address."

Q9. What is the best way to verify that a host has a path to other hosts in different networks?

A. Ping the loopback address.

B. Ping the default gateway.

C. Ping the local interface address.

D. Ping the remote network.

Answer: D

Explanation:

Ping is a tool that helps to verify IP-level connectivity; PathPing is a tool that detects packet loss over multiple-hop trips. When troubleshooting, the ping command is used to send an ICMP Echo Request to a target host name or IP address. Use Ping whenever you want to verify that a host computer can send IP packets to a destination host. You can also use the Ping tool to isolate network hardware problems and incompatible configurations.

If you call ipconfig /all and receive a response, there is no need to ping the loopback address and your own IP address u2014 Ipconfig has already done so in order to generate the report.

It is best to verify that a route exists between the local computer and a network host by first using ping and the IP address of the network host to which you want to connect. The command syntax is:

ping < IP address >

Perform the following steps when using Ping:

u2711 Ping the loopback address to verify that TCP/IP is installed and configured correctly on the local computer.

ping 127.0.0.1

If the loopback step fails, the IP stack is not responding. This might be because the TCP drivers are corrupted, the network adapter might not be working, or another service is interfering with IP.

u2711 Ping the IP address of the local computer to verify that it was added to the network

correctly. Note that if the routing table is correct, this simply forwards the packet to the loopback address of 127.0.0.1.

ping < IP address of local host >

u2711 Ping the IP address of the default gateway to verify that the default gateway is functioning and that you can communicate with a local host on the local network.

ping < IP address of default gateway >

u2711 Ping the IP address of a remote host to verify that you can communicate through a router.

ping < IP address of remote host >

u2711 Ping the host name of a remote host to verify that you can resolve a remote host name.

ping < Host name of remote host >

u2711 Run a PathPing analysis to a remote host to verify that the routers on the way to

the destination are operating correctly. pathping < IP address of remote host >

Q10. What are two characteristics of a switch that is configured as a VTP client? (Choose two.)

A. If a switch that is configured to operate in client mode cannot access a VTP server, then the switch reverts to transparent mode.

B. On switches that are configured to operate in client mode, VLANs can be created, deleted, or renamed locally.

C. The local VLAN configuration is updated only when an update that has a higher configuration revision number is received.

D. VTP advertisements are not forwarded to neighboring switches that are configured in VTP transparent mode.

E. VTP client is the default VTP mode.

F. When switches in VTP client mode are rebooted, they send a VTP advertisement request to the VTP servers.

Answer: C,F

Explanation:

VLAN Trunking Protocol (VTP) http://archive.networknewz.com/2004/0317.html

VTP Modes

Server Mode Once VTP is configured on a Cisco switch, the default mode used is Server Mode. In any given VTP management domain, at least one switch must be in Server Mode. When in Server Mode, a switch can be used to add, delete, and modify VLANs, and this information will be passed to all other switches in the VTP management domain.

Client Mode When a switch is configured to use VTP Client Mode, it is simply the recipient of any VLANs added, deleted, or modified by a switch in Server Mode within the same management domain. A switch in VTP client mode cannot make any changes to VLAN information.

Transparent Mode A switch in VTP Transparent Mode will pass VTP updates received by switches in Server Mode to other switches in the VTP management domain, but will not actually process the contents of these messages. When individual VLANs are added, deleted, or modified on a switch running in transparent mode, the changes are local to that particular switch only, and are not passed to other switches in the VTP management domain.

Q11. Which two switch states are valid for 802.1w? (Choose two.)

A. listening

B. backup

C. disabled

D. learning

E. discarding

Answer: D,E

Explanation: Port States

There are only three port states left in RSTP that correspond to the three possible operational states. The 802.1D disabled, blocking, and listening states are merged into a unique 802.1w discarding state.

Q12. 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 R4 in the Branch1 office. What is causing the problem?

A. There is an area ID mismatch.

B. There is a Layer 2 issue; an encapsulation mismatch on serial links.

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

D. The R3 router ID is configured on R4.

Answer: A

Q13. Which term describes a spanning-tree network that has all switch ports in either the blocking or fowarding state?

A. converged

B. redundant

C. provisioned

D. spanned

Answer: A

Explanation:

Spanning Tree Protocol convergence (Layer 2 convergence) happens when bridges and switches have transitioned to either the forwarding or blocking state. When layer 2 is converged, root bridge is elected and all port roles (Root, Designated and Non-Designated) in all switches are selected.