Cisco Q2 MOD 5-6-7 Flashcards

1
Q

192.168.11.10 IP address?

A

11000000.10101000.00001011.00001010

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2
Q

172.16.31.30 IP address?

A

10101100.00010000.00011111.00011110

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3
Q

Which is the hexadecimal equivalent of 202?

A

CA

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4
Q

Which is the hexadecimal equivalent of 254?

A

FE

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5
Q

Which is the decimal equivalent of A9?

A

169

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6
Q

Which of the following is the decimal equivalent of 7D?

A

125

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7
Q
A
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8
Q

IPv4 addresses begin as binary, a series of only 1s and 0s.

A

T

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9
Q

Binary is a numbering system that consists of the digits 0 and 1 called bits.

A

T

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10
Q

Each address consists of a string of 32 bits, divided into four sections called

A

Octets

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11
Q

Representation for decimal number 173

A

10101101

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12
Q

How many binary bits exist within an IPv6 address

A

128

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13
Q

Binary equivalent of the decimal number 232

A

111010000

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14
Q

Which two statements are correct about IPv4 and IPv6 address

A

IPv4 address are 32 bits in length

IPv6 address are represented be hexadecimal numbers

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15
Q

Which IPv4 address, format was created for ease of use by purple and it’s expressed as 201.192.1.4?

A

Dotted decimal

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16
Q

What is the decimals equivalent of the binary number 10010101

A

011149

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17
Q

What is the decimal equivalent of the hex number 0x3F

A

63

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18
Q

Decimal equivalent of 0xC9

A

201

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19
Q

Valid hexadecimal number

A

F

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20
Q

Binary representation of 0xCA

A

F

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21
Q

Binary representation of 0xCA

A

110001010

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22
Q

How many bits are in IPv4 address

A

32

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23
Q

is responsible for network interface card (NIC) to network interface card communications

A

Data Link Layer

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24
Q

Without the data link layer, network layer protocols such as IP, would have to make provisions for connecting to every type of media that could exist along a delivery path.

A

T

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25
Q

IEEE 802 LAN/MAN standards are specific to Ethernet LANs, wireless LANs (WLAN), wireless personal area networks (WPAN) and other types of local and metropolitan area networks

A

T

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26
Q

The IEEE 802 LAN/MAN data link layer consists of the following two sublayers:

A

Logical Link Control (LLC)

Media Access Control (MAC)

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27
Q

The MAC sublayer controls the NIC and other hardware that is responsible for sending and receiving data on the wired or wireless LAN/MAN medium.

A

T

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28
Q

The LLC sublayer takes the network protocol data, which is typically an IPv4 or IPv6 packet, and adds Layer 2 control information to help deliver the packet to the destination node

A

T

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29
Q

The framing process provides important delimiters to identify fields within a frame. These delimiting bits provide synchronization between the transmitting and receiving nodes

A

Frame delimiting

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30
Q

Provides source and destination addressing for transporting the Layer 2 frame between devices on the same shared medium

A

Addressing

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31
Q

Includes a trailer used to detect transmission errors.

A

Error Detection

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32
Q

The MAC sublayer also provides media access control, allowing multiple devices to communicate over a shared (half-duplex) medium. Full-duplex communications do not require access control.

A

T

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33
Q

Router interfaces encapsulate the packet into the appropriate frame.

A

T

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34
Q

What is another name for the OSI data link layer?

A

Layer 2

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35
Q

The IEEE 802 LAN/MAN data link layer consists of which two sublayers?

A

Logical Link Control

Media Access Control

36
Q

What is the responsibility of the MAC sublayer?

A

Provides the method to get the frame on and off the media

37
Q

What Layer 2 function does a router perform?

A

Accepts a frame from a medium

De encapsulates frame

Re encapsulates the packet into a new frame

38
Q

The media access control method used depends on which two criteria?

A

Media Sharing

Topology

39
Q

Which organization defines standards for the network access layer (i.e., the OSI physical and data link layers)?

A

IEEE

40
Q

Identifies the physical connections and how end devices and intermediary devices (i.e, routers, switches, and wireless access points) are interconnected.

A

Physical topology

41
Q

Refers to the way a network transfers frames from one node to the next.

A

Logical Topology

42
Q

The data link layer “sees” the logical topology of a network when controlling data access to the media. It is the logical topology that influences the type of network framing and media access control used.

A

T

43
Q

Physical point-to-point topologies directly connect two nodes, as shown in the figure. In this arrangement, two nodes do not have to share the media with other hosts.

A

T

44
Q

Physical point-to-point topologies directly connect two nodes, as shown in the figure. In this arrangement, two nodes do not have to share the media with other hosts.

A

T

45
Q

In multiaccess LANs, end devices (i.e., nodes) are interconnected using star or extended star topologies, as shown in the figure. In this type of topology, end devices are connected to a central intermediary device, in this case, an Ethernet switch.

A

T

46
Q

All end systems are chained to each other and terminated in some form on each end. Infrastructure devices such as switches are not required to interconnect the end devices.

A

Bus

47
Q

End systems are connected to their respective neighbor forming a ring.

A

Ring

48
Q

Which topology displays networking device layer IP addresses

A

Logical topology

49
Q

What kind of network would use point-to-point, hub and spoke, or mesh topologies?

A

WAN

50
Q

Which LAN topology is a hybrid topology?

A

Extended Star

51
Q

Which duplex communication method is used in WLANs

A

Half duplex

52
Q

Which media access control method is used in legacy Ethernet LANs?

A

Carrier senses multiple access/detection

53
Q

What does the data link layer add to a Layer 3 packet to create a frame?

A

Header

Trailer

54
Q

What is the function of the last field in a data link layer frame?

A

To determine whether frame experienced transmission error

55
Q

Which lists the Layer 2 and Layer 3 address fields in the correct order?

A

Destination NIC address, Source NIC address, Source IP Address, Destination IP address

56
Q

Which of the following are data link layer protocols? (Choose three)

A

802.1

Ethernet

PPP

57
Q

What identifier is used at the data link layer to uniquely identify an Ethernet device

A

MAC Address

58
Q

What attribute of a NIC would place it at the data link layer of the OSI model

A

MAC Address

59
Q

Which two engineering organizations define open standards and protocols that apply to the data link layer?

A

Institute of Electrical and Electronics Engineer

International Telecommunication Union

60
Q

What is true concerning physical and logical topologies?

A

Logical topologies refer to how a network transfers data between devices

61
Q

What method is used to manage contention-based access on a wireless network?

A

CSMA/CD

62
Q

A technician has been asked to develop a physical topology for a network that provides a high level of redundancy. Which physical topology requires that every node is attached to every other node on the network?

A

Mesh

63
Q

Which statement describes the half-duplex mode of data transmission?

A

Data is transmitted over the network flows in one direction at a time

64
Q

Which is a function of the Logical Link Control (LLC) sublayer?

A

To identify which network layer protocol is being used

65
Q

Which data link layer media access control method does Ethernet use with legacy Ethernet hubs?

A

CSMA/CD

66
Q

What are the two sublayers of the OSI model data link layer?

A

MAC

LLC

67
Q

Which layer of the OSI model is responsible for specifying the encapsulation method used for specific types of media

A

Data Link

68
Q

What type of physical topology can be created by connecting all Ethernet cables to a central device

A

Star

69
Q

What are two services performed by the data link layer of the OSI model?

A

It accepts Layer 3 packets and encapsulation them into frames

It provides media access control and performs error detection

70
Q

Although CSMA/CD is still a feature of Ethernet, why is it no longer necessary

A

The use of full-duplex capable Layer 2 switches

71
Q

Ethernet operates in the data link layer and the physical layer

A

T

72
Q

Ethernet uses wired communications, including twisted pair, fiber-optic links, and coaxial cables.

A

T

73
Q

This IEEE 802.2 sublayer communicates between the networking software at the upper layers and the device hardware at the lower layers.

A

LLC Sublayer

74
Q

This sublayer (IEEE 802.3, 802.11, or 802.15 for example) is implemented in hardware and is responsible for data encapsulation and media access control.

A

Mac Sublayer

75
Q

The MAC sublayer is responsible for data encapsulation and accessing the media.

A

T

76
Q

This is the internal structure of the Ethernet frame

A

Ethernet Frame

77
Q

he Ethernet frame includes both a source and destination MAC address to deliver the Ethernet frame from Ethernet NIC to Ethernet NIC on the same LAN

A

Ethernet Addressing

78
Q

The Ethernet frame includes a frame check sequence (FCS) trailer used for error detection.

A

Ethernet Error Detection

79
Q

Which part of an Ethernet Frame uses a pad to increase the frame field to at least 64 bytes?

A

Data Field

80
Q

Which part of an Ethernet frame detects errors in the frame?

A

Frame Check Sequence

81
Q

Which part of an Ethernet Frame describes the higher-layer protocol that is encapsulated?

A

Ether Type

82
Q

Which part of an Ethernet Frame notifies the receiver to get ready for a new frame?

A

Preamble

83
Q

Which data link sublayer controls the network interface through software drivers?

A

LLC

84
Q

Which data link sublayer works with the upper layers to add application information for delivery of data to higher level protocols?

A

LLC

85
Q

What is a function of the MAC sublayer?

A

Controls access to the media

Checks for errors in received bits

uses CMA/CD or CSMA/CA to support Ethernet technology

86
Q
A