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CCNP > Packet Forwarding > Flashcards

Packet Forwarding Flashcards

1
Q

Forwarding of network traffic from a layer 2 perspective users what information?

A

Destination MAC address

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2
Q

What type of network device helps reduce the size of a collision domain?

A

Switch

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3
Q

Forwarding of network traffic from layer 3 perspective uses what information?

A

Destination IP Address

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4
Q

What type of network device reduce the size of a broadcast domain?

A

Router

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5
Q

The ____________ can be directly correlated to the MAC address table.

A

CAM

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6
Q

A ___________ forwarding architecture provides increased port density and forwarding scalability.

A

Distributed

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7
Q

CEF is composed of which components? (Choose two)

 A) Routing Information Base
 B) Forwarding Information Base
 C) Label Information Base
 D) Adjacency Table
 E) MAC address table
A

Fowarding Information Base & Adjacency Table

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8
Q

Ethernet commonly uses __________ to forward data on the Link Layer.

A

MAC Addresses

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9
Q

Ethernet devices use ___________ to ensure only one device talks at the same time in a collision domain.

A

CSMA/CD (Collision Sense Multiple Access/Collision Detection)

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10
Q

A Switch maintains a table of __________ that are associated to a specific device.

A

MAC (Media Access Control) Addresses

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11
Q

When a switch forwards a packet out of every port except the one that it was received on, this is known as a __________?

A

Unicast Broadcast

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12
Q

All devices that reside in the same layer 2 segment are in the same ____________.

A

Broadcast Domain

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13
Q

__________ creates a logical segmentation by creating multiple broadcast domains on the same network switch.

A

VLANS (Virtual LANs)

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14
Q

T/F - VLAN 0 is reserved for 802.1P traffic and cannot be modified or deleted.

A

True

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15
Q

T/F - VLAN 1 is the default VLAN and cannot be modified or deleted.

A

True

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16
Q

VLANs 2 to 1001 are in the normal range but can not be added, deleted, or modified.

A

False (These are normal, but they CAN be added, deleted, or modified)

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17
Q

VLANs 1002 to 1005 are normal ranges but can be deleted or modified.

A

False ( These are reserved and cannot be deleted or modified)

18
Q

VLANs 1006 to 4094 are in the extended VLAN range and can be added, deleted, or modified.

A

True

19
Q

How many VLANs can be assigned to an access port on a switch?

A

One

20
Q

How many VLANs can be assigned to a trunk port?

A

There is no limit

21
Q

Any traffic that is advertised or received on a trunk port without the 802.1Q VLAN tag, is associated to the _________ VLAN?

A

Native

22
Q

Excluding MAC Addresses, a switches MAC address table shows which of the following:
A) VLAN
B) Type (Dynamic or Static)
C) Ports
D) All of the above

A

All of the above

23
Q

The MAC Address table resides in the _________ on the switch.

A

CAM (Content Addressable Memory)

24
Q

The _________ provides a method of mapping Layer 3 IP addresses to Layer 2 MAC addresses?

A

ARP (Address Resolution Protocol) Table

25
Q

If any entry does not exist in the local ARP table, the device __________ an ARP request the entire Layer 2 switching segment.

A

Broadcasts

26
Q

A device with an IP address that is in the up state is stored on the routers routing table refereed to as the ________ ?

A

RIB (Routing Information Base)

27
Q

T/F - Connected networks or routes have an administrative distance of 1?

A

False (0)

28
Q

With Catalyst switches it is possible to assign an IP address to a ___________ also know as a VLAN interface.

A

SVI (Switched Virtual Interface)

29
Q

The command ___________ turns a layer 2 switch port into a layer 3 switch port.

A

No Switchport

30
Q

T/F - Software switching is Significantly faster than hardware switching?

A

False

31
Q

_________ is a Cisco proprietary switching mechanism.

A

CEF (Cisco Express Forwarding)

32
Q

T/F - CEF is a form of software switching?

A

False

33
Q

_________ allows for the matching and evaluation of a packet on more than one field and is an extension of the CAM architecture.

A

TCAM (Ternary Content Addressable Memory)

34
Q

TTL stands for what?

A

Time to Live

35
Q

TTL reduced by what number for every layer 3 hop?

A

One

36
Q

What happens to a packet when a router receives the packet with TTL of 0?

A

It is discarded

37
Q

_________ is a redundancy feature that allows a Cisco router with two route processors to sync router configurations.

A

Stateful Switchover

38
Q

The process of mirroring information between RP’s is referred to as _________ ?

A

Checkpointing

39
Q

A method of forwarding packets in hardware through the use of the FIB and adjacency tables is referred to as __________?

A

CEF (Cisco Express Forwarding)

40
Q

__________ is the hardware programming of a forwarding table

A

FIB (Forwarding Information Base)

CCNP (2 decks)

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