200-125 | The Secret of Cisco 200-125 practice test

Q15. After you configure the Loopback0 interface, which command can you enter to verify the status of the interface and determine whether fast switching is enabled?

A. Router#show ip interface loopback 0

B. Router#show run

C. Router#show interface loopback 0

D. Router#show ip interface brief

Answer: A

Q16. Refer to the exhibit.

While troubleshooting a switch, you executed the show interface port-channel 1 etherchannel command and it returned this output. Which information is provided by the Load value?

A. the percentage of use of the link

B. the preference of the link

C. the session count of the link

D. the number source-destination pairs on the link

Answer: D

Q17. What are three advantages of VLANs? (Choose three.)

A. They establish broadcast domains in switched networks.

B. They provide a low-latency internetworking alternative to routed networks.

C. They utilize packet filtering to enhance network security.

D. They can simplify adding, moving, or changing hosts on the network.

E. They allow access to network services based on department, not physical location.

F. They provide a method of conserving IP addresses in large networks.

Answer: A,D,E

Q18. 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

Q19. What are two drawbacks of implementing a link-state routing protocol? (Choose two.)

A. the sequencing and acknowledgment of link-state packets

B. the high volume of link-state advertisements in a converged network

C. the requirement for a hierarchical IP addressing scheme for optimal functionality

D. the high demand on router resources to run the link-state routing algorithm

E. the large size of the topology table listing all advertised routes in the converged network

Answer: C,D

Q20. If host Z needs to send data through router R1 to a storage server, which destination MAC address does host Z use to transmit packets?

A. the host Z MAC address

B. the MAC address of the interface on R1 that connects to the storage server

C. the MAC address of the interface on R1 that connects to host Z

D. the MAC address of the storage server interface

Answer: C

Q21. In which byte of an IP packet can traffic be marked?

A. the ToS byte

B. the QoS byte

C. the DSCP byte

D. the CoS byte

Answer: A

Q22. Under normal operations, Cisco recommends that you configure switchports on which VLAN?

A. on any VLAN except the default VLAN

B. on the management VLAN

C. on the native VLAN

D. on the default VLAN

Answer: D

Q23. Which command can you enter to route all traffic that is destined for 192.168.0.0/20 to a specific interface?

A. router(config)#ip route 192.168.0.0 255.255.240.0 GigabitEthernet0/1

B. router(config)#ip route 0.0.0.0 255.255.255.0 GigabitEthernet0/1

C. router(config)#ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/1

D. router(config)#ip route 192.168.0.0 255.255.255.0 GigabitEthernet0/1

Answer: A

Q24. In which three ways is an IPv6 header simpler than an IPv4 header? (Choose three.)

A. Unlike IPv4 headers, IPv6 headers have a fixed length.

B. IPv6 uses an extension header instead of the IPv4 Fragmentation field.

C. IPv6 headers eliminate the IPv4 Checksum field.

D. IPv6 headers use the Fragment Offset field in place of the IPv4 Fragmentation field.

E. IPv6 headers use a smaller Option field size than IPv4 headers.

F. IPv6 headers use a 4-bit TTL field, and IPv4 headers use an 8-bit TTL field.

Answer: A,B,C