Latest Cisco 100-101 ICND1 Real Exam Download 281-290

By | August 16, 2013



At which layer of the OSI model is RSTP used to prevent loops?


A.     data link

B.     network

C.     physical

D.     transport

Correct Answer: A




Refer to the exhibit. A system administrator installed a new switch using a script to configure it. IP connectivity was tested using pings to Switch B. Later attempts to access NewSwitch using Telnet from Switch A failed. Which statement is true?




A.  Executing password recovery is required.

B.  The virtual terminal lines are misconfigured.

C.  Use Telnet to connect to RouterA and then to NewSwitch to correct the error.

D.  Power cycle of NewSwitch will return it to a default configuration.


Correct Answer: C




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


A.       when a dual ring topology is in use

B.       in an improperly implemented redundant topology

C.       after broken links are re-established

D.       when upper-layer protocols require high reliability

E.        during high traffic periods


Correct Answer: B






Refer to the exhibit. Which two statements are true of the interfaces on Switch1? (Choose two.)




A.       Interface FastEthernet0/2 has been disabled.

B.       Multiple devices are connected directly to FastEthernet0/1.

C.       FastEthernet0/1 is configured as a trunk link.

D.       FastEthernet0/1 is connected to a host with multiple network interface cards.

E.        FastEthernet0/5 has statically assigned MAC addresses.

F.        A hub is connected directly to FastEthernet0/5.


Correct Answer: CF




What is the purpose of Spanning Tree Protocol?


A.       to prevent routing loops

B.       to create a default route

C.       to provide multiple gateways for hosts

D.       to maintain a loop-free Layer 2 network topology


Correct Answer: D




Refer to the exhibit. The switches on a campus network have been interconnected as shown. All of the switches are running Spanning Tree Protocol with its default settings. Unusual traffic patterns are observed and it is discovered that Switch9 is the root bridge. Which change will ensure that Switch1 will be selected as the root bridge instead of Switch9?




A.       Lower the bridge priority on Switch1.

B.       Raise the bridge priority on Switch1.

C.       Lower the bridge priority on Switch9.

D.       Raise the bridge priority on Switch9.

E.        Disable spanning tree on Switch9.

F.        Physically replace Switch9 with Switch1 in the topology.


Correct Answer: A




Refer to the exhibit. Switch-1 needs to send data to a host with a MAC address of 00b0.d056.efa4. What will Switch-1 do with this data?




A.  Switch-1 will drop the data because it does not have an entry for that MAC address.

B.  Switch-1 will forward the data to its default gateway.

C.  Switch-1 will flood the data out all of its ports except the port from which the data originated.

D.  Switch-1 will send an ARP request out all its ports except the port from which the data originated.


Correct Answer: C




Refer to the exhibit. Given the output shown from this Cisco Catalyst 2950, what is the most likely reason that interface FastEthernet 0/10 is not the root port for VLAN 2?




A.  This switch has more than one interface connected to the root network segment in VLAN 2.

B.  This switch is running RSTP while the elected designated switch is running 802.1d Spanning Tree.

C.  This switch interface has a higher path cost to the root bridge than another in the topology.

D.  This switch has a lower bridge ID for VLAN 2 than the elected designated switch.


Correct Answer: C




Refer to the exhibit. Switch1 has just been restarted and has passed the POST routine. Host A sends its initial frame to Host C. What is the first thing the switch will do as regards populating the switching table?



A.  Switch1 will add to the switching table.

B.  Switch1 will add to the switching table.

C.  Switch1 will add 000A.8A47.E612 to the switching table.

D.  Switch1 will add 000B.DB95.2EE9 to the switching table.


Correct Answer: C




Refer to the exhibit. Which two statements are true about interVLAN routing in the topology that is shown in the exhibit? (Choose two.)




A.       Host E and host F use the same IP gateway address.

B.       Router1 and Switch2 should be connected via a crossover cable.

C.       Router1 will not play a role in communications between host A and host D.

D.       The FastEthernet 0/0 interface on Router1 must be configured with subinterfaces.

E.        Router1 needs more LAN interfaces to accommodate the VLANs that are shown in the exhibit.

F.        The FastEthernet 0/0 interface on Router1 and Switch2 trunk ports must be configured using the same encapsulation type.


Correct Answer: DF



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