2014 Latest Cisco 350-001 Dump Free Download(301-310)!

On a Cisco router that is in ROMMON mode, how can you set the configuration register to its default value?

A.    set confreg 0x2102
B.    confreg 0x2102
C.    config-register 0x2102
D.    set config-register 0x2102

Answer: B
http://www.cisco.com/en/US/products/hw/routers/ps133/products_tech_note09186a008022493f.s html (configreg)

Which two combinations are valid LACP configurations that will set up an LACP channel? (Choose two.)

A.    on-passive
B.    on-auto
C.    passive-active
D.    desirable-auto
E.    active-active
F.    desirable-desirable

Answer: CE
http://www.cisco.com/en/US/tech/tk389/tk213/technologies_configuration_example09186a00800 94470.shtml (background theory, see the table)

How many bytes make up the spanning-tree bridge ID?

A.    4
B.    8
C.    12
D.    16

Answer: B
The IEEE 802.1D standard requires that each switch has an unique bridge identifier (bridge ID), which controls the selection of the root switch. Because each VLAN is considered as a different logical bridge with PVST+ and rapid PVST+, the same switch must have a different bridge IDs for each configured VLAN. Each VLAN on the switch has a unique 8-byte bridge ID. The 2 most-significant bytes are used for the switch priority, and the remaining 6 bytes are derived from the switch MAC address.

In which two spanning-tree port states is the port learning MAC addresses? (Choose two.)

A.    disabled
B.    blocking
C.    listening
D.    learning
E.    forwarding

Answer: DE
When the spanning-tree algorithm determines that a port should be placed in the forwarding state, the following occurs:
The port is put into the listening state while it waits for protocol information that suggests it should go to the blocking state.
The port waits for the expiration of a protocol timer that moves the port to the learning state.
In the learning state, the port continues to block frame forwarding as it learns station location information for the forwarding database.
The expiration of a protocol timer moves the port to the forwarding state, where both learning and forwarding are enabled.

In an 802.1s BPDU, what is the size of the configuration revision number?

A.    8 bits
B.    16 bits
C.    24 bits
D.    32 bits

Answer: B
http://blog.ine.com/tag/8021s/ ( see implementing MSTP, 5th bullet)

What is the BPDU protocol version for 802.1w?

A.    0
B.    1
C.    2
D.    3

Answer: C
http://www.cisco.com/en/US/tech/tk389/tk621/technologies_white_paper09186a0080094cfa.shtm l (See New BPDU format, second para)

Which three options are used in the spanning-tree decision process? (Choose three.)

A.    lowest root bridge ID
B.    lowest path cost to root bridge
C.    lowest sender bridge ID
D.    highest port ID
E.    highest root bridge ID
F.    highest path cost to root bridge

Answer: ABC
http://www.ccnpguide.com/ccnp-switch-642-813-spanning-tree-basics/ (see STP convergence)

Which two statements are true about LACP? (Choose two.)

A.    LACP packets are sent with multicast group MAC address 01-80-c2-00-00-02.
B.    The Type/Field value is 0x8808.
C.    During detection, LACP packets are transmitted every second.
D.    The timeout for a failed LACP channel is 30 seconds by default.

Answer: AC

Which statement is true about TCN propagation in RSTP (802.1w)?

A.    The originator of the TCN immediately floods this information through the network.
B.    The TCN propagation is a two step process.
C.    A TCN is generated and sent to the root bridge.
D.    The root bridge must flood this information throughout the network.

Answer: A
The TCN propagation in RSTP is unique in the way that the originator of the TCN floods information through the network.

When using extended system ID in 802.1d, how many bits are reserved for this field?

A.    6
B.    8
C.    10
D.    12

Answer: D
The priority value is divided into 4 bit priority and 12 bit extended system id. This extended system id is usually equal to the VLAN id. The idea behind it is to conserve MAC addresses – PVST+ requires a different bridge id per VLAN, and this would mean different MACs — unless you ensure that the priorities are different. By re-mapping some of the priority bits, this is ensured and all VLANs can use the same MAC address.

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