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Information Technology > 2-8 Networking > Flashcards

2-8 Networking Flashcards

1
Q

What is a network?

A

A network is a system where computers and devices are linked together, either through cables or wirelessly, allowing them to share resources, data, and applications.

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2
Q

What is the purpose of networking?

A

The purpose of networking is data sharing, equipment sharing, software sharing, easier system management, security, electronic communication, shared use of an internet access, financial savings, and an increase in computing power.

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3
Q

What are some basic network devices and components?

A

computers, servers, printers, copiers, storage arrays, wireless access points/Wi-Fi routers, network adapters/cards, network hubs, network switches, routers, firewalls, and network cables.

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4
Q

What are the two main types of networks?

A

Peer-to-Peer networks and Client-Server networks.

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5
Q

What are the key characteristics of Peer-to-Peer networks?

A

Also called workgroups, no centralized management or security, each computer is in charge of its own local users, files, and folder permissions, to access resources on another computer the user needs an account on that specific computer, computers are connected through network switch.

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6
Q

How does a Peer-to-Peer network handle file sharing?

A

a computer can act as a file server. many workgroup-configured operating systems can only accept ten (10) concurrent connections at a time.

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7
Q

What are the key features of a Client-Server network?

A

Has clients (workstations) and a server (or servers), with computers and servers connected to each other via a network switch.

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8
Q

What are the advantages of a Client-Server network?

A

Users’ accounts are created on the directory server, computers and servers are joined to a domain, authentication is centralized for logins and resource permissions.

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9
Q

What are the disadvantages of a Client-Server network?

A

Increased costs, more difficult to implement and maintain, single point of failure.

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10
Q

What are some key network terminology?

A

Ethernet, Server, Bandwidth, Fiber optic, Network card, Packet, Port, IP address, ISP, Cat5 cable, Host, LAN, DNS, DHCP.

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11
Q

What is Ethernet?

A

a standard of network communication using twisted pair cable.

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12
Q

What is a Server?

A

a computer used to store files or host an application.

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13
Q

What is Bandwidth?

A

the capacity of a network communication link to transmit the maximum amount of data from one point to another over a network connection.

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14
Q

What is Fiber optic?

A

a type of network cable that uses a super-thin glass or plastic core to transmit data via a light signal.

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15
Q

What is a Network card?

A

a piece of hardware installed in a computer used to transmit network data from the network to the device itself.

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16
Q

What is Protocol?

A

a set of rules used in network communication between devices needed to exchange information correctly.

17
Q

What is a Packet?

A

a small amount of data sent over a network containing information such as the source and destination address, as well as the information meant to be transmitted.

18
Q

What is a Port?

A

a number that identifies one side of a connection between two computers, used to identify a specific process.

19
Q

What is an IP address?

A

a 32-bit binary number used to identify network devices on a network.

20
Q

What is an ISP?

A

Internet Service Provider, is the company from which you get your internet connection.

21
Q

What is Cat5 cable?

A

Category 5 cabling, is a standard of network cable with a certain type and speed rating.

22
Q

What is a Host?

A

a device on a network.

23
Q

What is a LAN?

A

Local Area Network, is a network contained within one building.

24
Q

What is DNS?

A

Domain Naming System, translates hostnames to their IP addresses, eliminating the need to remember IP addresses when connecting to other network devices.

25
Q

What is DHCP?

A

Dynamic Host Configuration Protocol, is used to assign IP addresses to devices automatically, enabling communication on the network.

26
Q

How does network speed relate to hardware and cabling in a network?

A

In order for a network to utilize the desired speed, both the hardware and cabling need to support that particular speed. Otherwise, the network will function at the speed of the slowest device on the link.

27
Q

What are the layers of the OSI model?

A

Application layer, Presentation layer, Session layer, Transport layer, Network layer, Data link layer, Physical layer.

28
Q

What is the function of the Application layer in the OSI model?

A

where users communicate and interact with the computer, using various programs.

29
Q

What is the function of the Transport layer in the OSI model?

A

takes data from the upper layers and combines it into a data stream, providing end-to-end data transport services.

30
Q

What is the function of the Presentation layer in the OSI model?

A

presents data to the Application layer and translates the data as needed.

31
Q

What is the function of the Session layer in the OSI model?

A

sets up, manages, and dismantles network sessions between the Presentation layer entities.

32
Q

What is the function of the Network layer in the OSI model?

A

also known as layer 3, is where device addressing and data tracking take place.

33
Q

What is the function of the Data link layer in the OSI model?

A

provides for the physical transmission of data and also takes care of flow control and error notifications.

34
Q

What is the function of the Physical layer in the OSI model?

A

communicates with the actual communication media using bits, which have a value of either 0 or 1.

35
Q

What is the purpose of the Preamble in a network frame?

A

What is the purpose of the Preamble in a network frame?

36
Q

What does the SFD (Start Frame Delimiter) indicate in a network frame?

A

The SFD denotes that the destination MAC address field begins with the next byte.

37
Q

What does LAN stand for, and what does it represent?

A

LAN stands for Local Area Network, representing a network confined to one physical location.

38
Q

What does WAN stand for, and what is its definition?

A

WAN stands for Wide Area Network, representing a network that spans one or more remote locations.

Information Technology (4 decks)

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