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CPE046 - Computer Networks and Secutiry > Quiz 1 > Flashcards

Quiz 1 Flashcards

1
Q

A collection of computing devices connected in
order to communicate and share resources

A

Computer Network

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2
Q

Connections between computing devices can be
_______ using wires or cables or _____ using
radio waves

A

Physical, wireless

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3
Q

Key Functions of a Computer Network

A
  1. Communication
    a. data transfer
    b. remote access
  2. Resource Sharing
    a. hardware sharing
    b. software sharing
  3. Information Access
    a. internet connectivity
    b. database access
  4. Centralized Management
    a. network administration
    b. security
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4
Q

Facilitates the transmission of data between devices, such as files, emails, and messages.

A

data transfer

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5
Q

Allows users to access and control
devices and resources from remote locations.

A

remote access

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6
Q

Enables the sharing of physical
resources like printers, scanners, and storage devices.

A

hardware sharing

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7
Q

Allows multiple users to access and
utilize shared software applications.

A

software sharing

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8
Q

Provides access to the vast
amount of information available on the internet.

A

internet connectivity

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9
Q

Enables access to centralized
databases for data storage and retrieval.

A

database access

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10
Q

Allows for centralized management and monitoring of network devices and resources.

A

network administration

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11
Q

Enhances security measures to protect network
resources from unauthorized access.

A

security

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12
Q

Any device on a network

A

node

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13
Q

The speed with which data is moved from
one place to another on a network

A

throughput

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14
Q

refers to the amount of data that can be
transmitted and received during a specific period of time.

A

bandwidth

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15
Q

measures delay. Delay is simply the time taken for a data packet to reach its destination after being sent.

A

latency

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16
Q

is any computer hardware or software device
that requests access to a service provided by a server.

A

client

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17
Q

is a computer program or device that provides a
service to another computer program and its user, also known as the client.

A

server

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18
Q

In technical terms, bandwidth is the
_______ that a network
connection can support. It is usually measure in ______

A

data transfer rate, bits per second(bps)

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19
Q

In the context of data, throughput is the _______ that is sent over a network. It is also measured in _____.

A

actual data transfer rate, bits per second (bps)

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20
Q

It’s the time it takes for a packet
of data to travel from the source
to the destination.

A

latency

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21
Q

A set of rules that defines how data is formatted and processed on a network; i.e., rules that allow client/server interaction

A

protocol

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22
Q

A computer that stores and manages files for multiple users on a network

A

file server

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23
Q

A computer dedicated to responding to requests (from the browser client) for web pages

A

web server

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24
Q

a physical arrangement through which various endpoints and links in an enterprise network communicate with each other.

A

network topology

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25
Q

A simple topology that directly links two nodes and reserves the entire bandwidth of the connection for them to communicate with one another.

A

point-to-point

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26
Q

All the nodes are linked using a single cable with a terminator on both ends. This configuration sees one main cable acting as the backbone for the whole network.

A

bus topology

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27
Q

Each node is linked with its neighbor to form a closed network. This configuration sees the data move from one node to another, either unidirectionally or bidirectionally.

A

ring topology

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28
Q

All nodes are connected to a central hub using a communication link.

A

star topology

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29
Q

nodes are arranged in a configuration that resembles a tree’s leaves, branches, and trunk

A

tree topology

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30
Q

all the nodes are interconnected and can send and receive their data and relay data from other nodes.

A

mesh topology

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31
Q

Features characteristics of multiple other
topologies.

A

hybrid topology

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32
Q

A network that connects local-area networks over a potentially large geographic distance

A

wide area network (wan)

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33
Q

The communication infrastructures that have been developed in and around large cities

A

metropolitan area network (man)

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34
Q

a collection of devices connected together in one physical location, such as a building, office, or home.

A

local area network (lan)

35
Q

A wide area network that spans the planet

A

interconnected networks (internet)

36
Q

One particular set up to handle all communication going between that LAN and other networks

37
Q

A set of high-speed networks that carry
Internet traffic.

A

internet backbone

38
Q

the first Internet Exchange Point in the Philippines. It is a joint project of Philippine Internet Service Providers

A

Philippine Internet Exchange

39
Q

A company that provides other companies
or individuals with access to the Internet

A

internet service provider

40
Q

2 Categories of Transmission Media

A
  1. guided (wired)
  2. unguided (wireless)
41
Q

It is also referred to as Wired or Bounded
transmission media.

A

guided media

42
Q

3 Major Types of Guided
Media

A
  1. twisted pair cable
  2. coaxial cable
  3. fiber optic cable
43
Q

This type of cable has the ability to block interference and does not depend on a physical shield for this purpose. It is used for telephonic applications.

A

unshielded twisted pair (utp)

44
Q

This type of cable consists of a special jacket to block external interference. It is used in fast-data-rate Ethernet and in voice and data channels of telephone lines.

A

shielded twisted pair (stp)

45
Q

It has an outer plastic covering containing 2 parallel conductors each having a separate insulated protection cover.

A

coaxial cable

46
Q

It uses the concept of reflection of light through a core made up of glass or plastic. The core is surrounded by a less dense glass or plastic covering called the _____

A

fiber optic cable, cladding

47
Q

RJ45 stands for

A

registered jack 45

48
Q

T568-A

A

white green, green, white orange blue, white blue, orange, white brown, brown

49
Q

T568-B

A

white orange, orange, white green, blue, white blue, orange, white brown, brown

50
Q

a description for layered communications and computer network protocol and transmission design

A

OSI (Open System Interconnection reference) Model

51
Q

provides a standardized approach to understanding how data is transmitted across networks

A

Open System Interconnection reference model

52
Q

a conceptual model and not a physical implementation

A

open system interconnection reference model

53
Q

7 layers of the OSI model

A

application, presentation, session, transport, network, data link, physical

54
Q

responsible for the transmission of raw bit streams over physical medium

A

physical layer

55
Q

physical layer functions

A
  1. bit transmission
  2. physical connection
  3. signal encoding
  4. bit synchronization
  5. error detection
56
Q

converts digital data into electrical signals or light pulses suitable for transmission

A

bit transmission

57
Q

defines the physical characteristics of the network such as cables, connectors and interfaces

A

physical connection

58
Q

determines how bits are represented as signals

A

signal encoding

59
Q

ensures that the sender and receiver are synchorized

A

bit synchronization

60
Q

implements basic error detection techniques like parity checking

A

error detection

61
Q

responsible for reliable data transfer between nodes on a network segment

62
Q

data link functions

A
  1. framing
  2. physical addressing
  3. error detection and correction
  4. flow control
63
Q

divides data into smaller units called frames. adds a header and trailer to each frame, containing control info like source and destination address

64
Q

assigns unique physical addresses (mac address) to each network interface cards (nic).

A

physical addressing

65
Q

employs techniques like cyclic redundancy check (crc) to detect errors in transmitted data

A

error detection and correction

66
Q

regulates the rate of data transmission to prevent the receiver from being overwhelmed

A

flow control

67
Q

responsible for logical addressing and routing data packets across different networks

A

network layer

68
Q

network layer functions

A
  1. logical addressing
  2. packet switching
  3. routing
  4. congestion control
69
Q

assigns unique logical addresses (ip addresses) to each device on a network

A

logical addressing

70
Q

breaks data into smaller packets for efficient transmission

A

packet switching

71
Q

determines the best path for packets to travel from source to destination

72
Q

rip

A

routing information protocol

73
Q

ospf

A

open shortest path first

74
Q

bgp

A

border gateway protocol

75
Q

manages network traffic to prevent congestion and ensure efficient data flow

A

congestion control

76
Q

fundamental protocol used to route data packets across the internet

77
Q

assigns unique addresses to devices connected to the network, enabling communication between them.

A

ip (internet protocol)

78
Q

cidr

A

classless inter-domain routing

79
Q

vlsm

A

variable length subnet mask

80
Q

flsm

A

fixed length subnet mask

81
Q

iana

A

internet assigned numbers authority

82
Q

the practice of dividing a network into two or more networks

A

subnetting

83
Q

offers a compact and extremely useful way to represent ip address and their associated subnet mask

A

cidr notation

CPE046 - Computer Networks and Secutiry (1 decks)

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