2014 Latest Cisco 200-120 Dump Free Download(91-100)!

QUESTION 91
When you are troubleshooting an ACL issue on a router, which command would you use to verify which interfaces are affected by the ACL?

A.    show ip access-lists
B.    show access-lists
C.    show interface
D.    show ip interface
E.    list ip interface

Answer: D
Explanation:
Incorrect answer:
show ip access-lists does not show interfaces affected by an ACL.

QUESTION 92
Cisco Catalyst switches CAT1 and CAT2 have a connection between them using ports FA0/13. An 802.1Q trunk is configured between the two switches. On CAT1, VLAN 10 is chosen as native, but on CAT2 the native VLAN is not specified. What will happen in this scenario?

A.    802.1Q giants frames could saturate the link.
B.    VLAN 10 on CAT1 and VLAN 1 on CAT2 will send untagged frames.
C.    A native VLAN mismatch error message will appear.
D.    VLAN 10 on CAT1 and VLAN 1 on CAT2 will send tagged frames.

Answer: C
Explanation:
A “native VLAN mismatch” error will appear by CDP if there is a native VLAN mismatch on an 802.1Q link. “VLAN mismatch” can cause traffic from one vlan to leak into another vlan.

QUESTION 93
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 be 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 can not be used globally for Internet use.

QUESTION 94
Which router IOS commands can be used to troubleshoot LAN connectivity problems? (Choose three.)

A.    ping
B.    tracert
C.    ipconfig
D.    show ip route
E.    winipcfg
F.    show interfaces

Answer: ADF
Explanation:
Ping, show ip route, and show interfaces are all valid troubleshooting IOS commands. Tracert, ipconfig, and winipcfg are PC commands, not IOS.

QUESTION 95
In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN?

A.    during high traffic periods
B.    after broken links are re-established
C.    when upper-layer protocols require high reliability
D.    in an improperly implemented redundant topology
E.    when a dual ring topology is in use

Answer: D
Explanation:
If we connect two switches via 2 or more links and do not enable STP on these switches then a loop (which creates multiple copies of the same unicast frame) will occur. It is an example of an improperly implemented redundant topology.

QUESTION 96
VLAN 3 is not yet configured on your switch. What happens if you set the switchport access vlan 3 command in interface configuration mode?

A.    The command is rejected.
B.    The port turns amber.
C.    The command is accepted and the respective VLAN is added to vlan.dat.
D.    The command is accepted and you must configure the VLAN manually.

Answer: C
Explanation:
The “switchport access vlan 3” will put that interface as belonging to VLAN 3 while also updated the VLAN database automatically to include VLAN 3.

QUESTION 97
A network administrator is troubleshooting an EIGRP problem on a router and needs to confirm the IP addresses of the devices with which the router has established adjacency. The retransmit interval and the queue counts for the adjacent routers also need to be checked. What command will display the required information?

A.    Router# show ip eigrp adjacency
B.    Router# show ip eigrp topology
C.    Router# show ip eigrp interfaces
D.    Router# show ip eigrp neighbors

Answer: D
Explanation:
Below is an example of the show ip eigrp neighbors command. The retransmit interval (Smooth Round Trip Timer ?SRTT) and the queue counts (Q count, which shows the number of queued EIGRP packets) for the adjacent routers are listed:

clip_image001
QUESTION 98
Which port state is introduced by Rapid-PVST?

A.    learning
B.    listening
C.    discarding
D.    forwarding

Answer: C
Explanation:
PVST+ is based on IEEE802.1D Spanning Tree Protocol (STP). But PVST+ has only 3 port states (discarding, learning and forwarding) while STP has 5 port states (blocking, listening, learning, forwarding and disabled). So discarding is a new port state in PVST+.

QUESTION 99
Refer to the exhibit. The two connected ports on the switch are not turning orange or green. What would be the most effective steps to troubleshoot this physical layer problem? (Choose three.)

clip_image001[4]

A.    Ensure that the Ethernet encapsulations match on the interconnected router and switch ports.
B.    Ensure that cables A and B are straight-through cables.
C.    Ensure cable A is plugged into a trunk port.
D.    Ensure the switch has power.
E.    Reboot all of the devices.
F.    Reseat all cables.

Answer: BDF
Explanation:
The ports on the switch are not up indicating it is a layer 1 (physical) problem so we should check cable type, power and how they are plugged in.

QUESTION 100
Which statement is correct regarding the operation of DHCP?

A.    A DHCP client uses a ping to detect address conflicts.
B.    A DHCP server uses a gratuitous ARP to detect DHCP clients.
C.    A DHCP client uses a gratuitous ARP to detect a DHCP server.
D.    If an address conflict is detected, the address is removed from the pool and an administrator must
resolve the conflict.
E.    If an address conflict is detected, the address is removed from the pool for an amount of time configurable
by the administrator.
F.    If an address conflict is detected, the address is removed from the pool and will not be reused until the
server is rebooted.

Answer: D
Explanation:
An address conflict occurs when two hosts use the same IP address. During address assignment, DHCP checks for conflicts using ping and gratuitous ARP. If a conflict is detected, the address is removed from the pool. The address will not be assigned until the administrator resolves the conflict.
http://www.cisco.com/en/US/docs/ios/12_1/iproute/configuration/guide/1cddhcp.html

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