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CCNA > 5. Exploring the TCP/IP Link Layer > Flashcards

5. Exploring the TCP/IP Link Layer Flashcards

1
Q

Name the Media, Maximum Segment Length, and Connector: 100BASE-TX

A

TIA Cat5 UTP two-pair | 100 m | ISO 8877 (RJ-45)

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2
Q

Name the Media, Maximum Segment Length, and Connector: 100BASE-FX

A

62.5/125-micron multimode fiber | 400 m | Duplex MIC ST

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3
Q

Name the Media, Maximum Segment Length, and Connector: 1000BASE-T

A

TIA Cat5e UTP four-pair | 100 m | ISO 8877 (RJ-45)

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4
Q

Name the Media, Maximum Segment Length, and Connector: 1000BASE-SX

A

62.5/50-micron multimode fiber | 275 m (62.5 microns), 550 m (50 microns) | Optical Fiber Connector

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5
Q

Name the Media, Maximum Segment Length, and Connector: 1000BASE-LX

A

9-micron single-mode fiber | 5-10 km | Optical Fiber Connector

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6
Q

Speed and throughput range for UTP Cables

A

10 Mbps to 40 Gbps

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7
Q

Maximum length for UTP cables

A

100 m (30 m for 40 Gbps)

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8
Q

Max Speed of Cat 5

A

100 Mbps

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9
Q

Max Speed of Cat 5e

A

1000 Mbps

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10
Q

Max Speed of Cat 6

A

10 Gbps

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11
Q

Max Speed of Cat 6a

A

10 Gbps

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12
Q

Max Speed of Cat 7

A

10 Gbps

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13
Q

Max speed of Cat 8

A

40 Gbps

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14
Q

What is PoE

A

Power over Ethernet

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15
Q

RJ-45 Wiring Diagram for T-568B

A
  1. Orange Stripe
  2. Orange Solid
  3. Green Stripe
  4. Blue Solid
  5. Blue Stripe
  6. Green Solid
  7. Brown Stripe
    8 Brown Solid
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16
Q

RJ-45 Wiring Diagram for T-568A

A
  1. Green Stripe
  2. Green Solid
  3. Orange Stripe
  4. Blue Solid
  5. Blue Stripe
  6. Orange Solid
  7. Brown Stripe
  8. Brown Solid.
17
Q

In what situation would you need a Crossover Cable?

A

When connecting like device to like device.

Switch to Switch, Router to Router, etc.

18
Q

Three components of a Fiber Optic Cable (From Outside to Inside)

A
  1. Buffer (or Coating)
  2. Cladding
  3. Core
19
Q

Two Fiber Types

A
  1. Single-Mode Fiber

2. Multi-Mode Fiber

20
Q

Four Characteristics of Multi-Mode Fiber

A
  1. LED Transmitter
  2. Lower Bandwidth and Speed
  3. Shorter Distances
  4. Less Expensive
21
Q

Four Characteristics of Single-Mode Fiber

A
  1. Laser Transmitter
  2. Higher Bandwidth and Speed
  3. Longer Distances
  4. More Expensive
22
Q

What media uses an LC connector, and in what kind of environment?

A

Fiber Optic Cables, In enterprise equipment and commonly used on SFP Modules.

23
Q

What media uses an SC connector, and in what kind of environment?

A

Fiber Optic Cables, for enterprise equipment

24
Q

What media uses an ST connector, and in what kind of environment?

A

Fiber Optic Cables, for patch panels

25
Q

What media uses an FC connector, and in what kind of environment?

A

Fiber Optic Cables, for patch panels. Used by service providers.

26
Q

What media uses an MT-RJ connector, and in what kind of environment?

A

Fiber Optic Cables. Is a two-fiber connector for enterprise environment

27
Q

What is an SFP

A 
Small Form-factor Pluggable module.
It is a hot-pluggable I/O device that plugs into module sockets.
28
Q

Max speed of SFP module

A

1 Gbps

29
Q

Max speed of SFP+ module

A

10 Gbps

30
Q

What technology has replaced cross-over cables

A

auto-MDIX (Automatic medium-dependent interface crossover)

31
Q

List the parts of a typical Ethernet Frame Field

A
  1. Preamble
  2. Destination MAC Address
  3. Source MAC Address
  4. Type
  5. Payload
  6. FCS
32
Q

Three major types of LAN communication

A
  1. Unicast
  2. Broadcast
  3. Multicast
33
Q

Number of bits in a MAC address

A

48

34
Q

Number of Hexadecimal digits in a MAC address

A

12

35
Q

Define OUI

A

Organizationally Unique Identifier.

- The first half of a MAC address. This is unique to a manufacturer and is regulated by the IEEE.

36
Q

What is included in the second half of a MAC address?

A

The 24 bit, vendor assigned, end-station address.

-The portion of the MAC address that uniquely identifies the Ethernet Hardware.

37
Q

Define CAM

A

Content-Addressable Memory.

- Where the MAC address table is stored.

38
Q

What is a I/G Address bit?

A

Individual/Group address bit.
- aka a Broadcast or Multicast bit.
When the least significant bit in the first octet of the MAC address is 1, it indicates that the frame is destined for all or a group of end stations.

39
Q

What is a U/L Address bit?

A

Universally or Locally administered address bit.
- It is the second least significant bit of the first octet of the MAC address. If it is set to 1, it means that the MAC has been modified locally.

CCNA (13 decks)

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