200-105 Exam PDF Questions

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Question No. 1

On which layer tcp/ip is ACL Apic-EM path?

Answer: D

Question No. 2

Which RPVST+ port state is excluded from all STP operations?

Answer: D

Question No. 3

Which utility can you use to identify redundant or shadow rules?

Answer: B

Question No. 4

Which two statements about eBGP neighbor relationships are true? (Choose two.)

Answer: A, B

Question No. 5

Which command do you enter to create an SVI?

Answer: A

Question No. 6

Which three statements about RSTP are true? (Choose three.)

Answer: A, B, D

http://www.cisco.com/en/US/tech/tk389/tk621/technologies_white_paper09186a0080094cfa.shtml

Convergence

Cisco enhanced the original 802.1D specification with features such as Uplink Fast, Backbone Fast, and Port Fast to speed up the convergence time of a bridged network. The drawback is that these mechanisms are proprietary and need additional configuration.

Alternate and Backup Port Roles

These two port roles correspond to the blocking state of 802.1D. A blocked port is defined as not being the designated or root port. A blocked port receives a more useful BPDU than the one it sends out on its segment.

Remember that a port absolutely needs to receive BPDUs in order to stay blocked. RSTP introduces these two roles for this purpose.

Rapid Transition to Forwarding State

Rapid transition is the most important feature introduced by 802.1w. The legacy STA passively waited for the network to converge before it turned a port into the forwarding state. The achievement of faster convergence was a matter of tuning the conservative default parameters (forward delay and max_age timers) and often put the stability of the network at stake. The new rapid STP is able to actively confirm that a port can safely transition to the forwarding state without having to rely on any timer configuration. There is now a real feedback mechanism that takes place between RSTP-compliant bridges. In order to achieve fast convergence on a port, the protocol relies upon two new variables: edge ports and link type.

Question No. 7

Which two best practices do you apply to your network to mitigate the potential security risk of the default

VLAN? (Choose two.)

Answer: D, E

Question No. 8

Which Cisco IOS feature can you use to dynamically identify a connectivity problem between a Cisco device

and a designated endpoint?

Answer: B

Question No. 9

To which two categories of routing protocols does BGP belong? (Choose two.)

Answer: C, E

Question No. 10

Which option is the master redundancy scheme for stacked switches?

Answer: A

Question No. 11

What is the maximum cost for hello and dead packets in OSPF? (Choose two)

Answer: A, C

Question No. 12

What is the default Local Management Interface frame type transmitted by a Cisco router on a Frame Relay

circuit?

Answer: D

Question No. 13

Which Layer 2 attack is specifically mitigated by changing the native VLAN to an unused VLAN?

Answer: A

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