Comptia Network+

Question 1

a network that connects computers and devices in a single location, such as a home, office, or school.

Answer 1

Local Area Networks (LANs)

-LANs can be used to share resources, such as printers and file servers, and to communicate with each other using messaging and other applications.

Question 2

a network that spans a large geographical area, such as a city, country, or even the entire world. WANs are typically used to connect LANs and other networks together, allowing devices in different locations to communicate with each other

Answer 2

Wide Area Networks (WANs)

Question 3

a network that spans a large geographical area, such as a city or metropolitan region.

Answer 3

Metropolitan Area Networks (MANs)

-MANs are typically used to connect LANs and other networks together within a specific region.

Question 4

a network that connects devices that are
in close proximity to each other, such as devices in the same room or within a few
feet of each other

Answer 4

Personal Area Networks (PANs)

PANs are often used to connect devices that are used by a single person, such as a smartphone, tablet, and laptop.

Question 5

Medium to provide communication between systems

Answer 5

network

Question 6

Portion of a network

Answer 6

Subnets – Short for “Subnetwork”

Question 7

Type of network that provides wireless communication, AKA “Wi-Fi”

Answer 7

WLANs – Wireless Local Area Networks

Question 8

Anything that gets an address to be able to communicate on a network is a

Answer 8

Nodes

Question 9

Systems used for listening for requests for the information that they have, and respond to properly formed requests. Could be able to help resolve something, provide time, send and email, download an email, share files.

Answer 9

Servers

Question 10

is a device that gives us a means of getting a lot of stations cabled up. great at
deploying a “Local Area Network”, or LAN. Focuses on Mac Addresses

Answer 10

A layer 2 switch

Question 11

here the switch stores information about the other Ethernet interfaces to which it is connected on a network

Answer 11

MAC Address Table

Question 12

What does MAC stand for

Answer 12

Media Access control

Question 13

devices that move traffic. They are the major hops between any two
endpoints.

Answer 13

Router

Question 14

set of rules, often viewed in table format, that’s used to determine where data packets traveling over an Internet Protocol (IP) network will be directed. This table is usually stored inside the Random Access Memory of forwarding devices, such as routers and network switches.

Answer 14

Routing Table

Question 15

the process of collecting data from one device and sending it to another device

Answer 15

Forwarding

Question 16

What layer are MAC address

Answer 16

Layer 2

Question 17

What layer are IP addresses

Answer 17

Layer 3

Question 18

the process of path selection in any network

Answer 18

Routing

Question 19

do all the things a layer 2 switch can do, and they can do about 80% of the things a router can do. Capable of routing to subnets and vlans

Answer 19

Multilayer switches or layer 3 switches

Question 20

Forwards data packets between devices. sends packets directly to devices, rather than sending them to networks like a router does.

Answer 20

Switches

Question 21

Routes between subnets

Answer 21

router

Question 22

virtual local area network that is a virtualized connection that connects multiple devices and network nodes from different LANs into one logical network.

Answer 22

VLAN

Question 23

a networking device that allows wireless-capable devices to connect to a wired network

Answer 23

Access Point

Question 24

monitors and manages wireless access points in bulk and allows wireless devices to connect to WLAN

Answer 24

Wireless LAN Controller

Question 25

a network security device that monitors and filters incoming and outgoing network traffic based on an organization's previously established security policies

Answer 25

Firewall

Question 26

a monitoring system that detects suspicious activities and generates alerts when they are detected.

Answer 26

Intrusion Detection System (IDS)

Question 27

is a network security tool (which can be a hardware device or software) that continuously monitors a network for malicious activity and takes action to prevent it, including reporting, blocking, or dropping it, when it does occur.

Answer 27

An intrusion prevention system (IPS)

Question 28

server application that acts as an intermediary between a client requesting a resource and the server providing that resource.

Answer 28

Proxy server

Question 29

operates as a Layer 2 switch without VLAN features Used to put two or more interfaces on a router or firewall in the same subnet

Answer 29

Bridge

Question 30

regenerates a signal. like a hub

Answer 30

Repeater

Question 31

circuit board that is installed on a computer to connect to the network

Answer 31

network interface card (NIC)

Question 32

Which devices can provide connectivity between two different subnets?

Answer 32

Layer 3 switch & Router

Question 33

What do we call any computing device connected to a network?

Answer 33

Node

Question 34

What are capabilities of Layer 3 switches? (Choose two) A - Can connect and segment two different departments B- Can route between networks C - Operates as a wifi access point D - Provides sophisticated firewall services E - Cand operate IDS

Answer 34

A - Can connect and segment two different departments B- Can route between networks

Question 35

a conceptual framework used to describe the functions of a networking system. The OSI model characterizes computing functions into a universal set of rules and requirements in order to support interoperability between different products and software.

Answer 35

OSI Model

Question 36

Transmission Control Protocol/Internet Protocol and is a suite of communication protocols used to interconnect network devices on the internet.

Answer 36

TCP/IP

Question 37

Layer 1 OSI Model

Answer 37

Physical Layer The lowest layer of the OSI Model is concerned with electrically or optically transmitting raw unstructured data bits across the network from the physical layer of the sending device to the physical layer of the receiving device. It can include specifications such as voltages, pin layout, cabling, and radio frequencies. At the physical layer, one might find “physical” resources such as network hubs, cabling, repeaters, network adapters or modems.

Question 38

Layer 2 OSI Model

Answer 38

Data Link Layer *Frame* **ARP-Address Resolution Protocol or procedure that connects an ever-changing Internet Protocol (IP) address to a fixed physical machine address, also known as a media access control (MAC) address, in a local-area network (LAN). ** Switches directly connected nodes are used to perform node-to-node data transfer where data is packaged into frames. The data link layer also corrects errors that may have occurred at the physical layer. encompasses two sub-layers of its own. The first, media access control (MAC), provides flow control and multiplexing for device transmissions over a network. The second, the logical link control (LLC), provides flow and error control over the physical medium as well as identifies line protocols.

Question 39

Layer 3 OSI Model

Answer 39

Network Layer Routers **ICMP-The Internet Control Message Protocol is a protocol that devices within a network use to communicate problems with data transmission.** IPV4 Addresses The network layer is responsible for receiving frames from the data link layer, and delivering them to their intended destinations among based on the addresses contained inside the frame. The network layer finds the destination by using logical addresses, such as IP (internet protocol). At this layer, routers are a crucial component used to quite literally route information where it needs to go between networks.

Question 40

Layer 4 OSI Model

Answer 40

Transport Layer Segments TCP and UDP manages the delivery and error checking of data packets. It regulates the size, sequencing, and ultimately the transfer of data between systems and hosts. One of the most common examples of the transport layer is TCP or the Transmission Control Protocol.

Question 41

Layer 5 OSI Model

Answer 41

Session Layer **Session management** **Forming and tearing them down** controls the conversations between different computers. A session or connection between machines is set up, managed, and termined at layer 5. Session layer services also include authentication and reconnections.

Question 42

Layer 6 OSI Model

Answer 42

Presentation Layer compression formats or translates data for the application layer based on the syntax or semantics that the application accepts. Because of this, it at times also called the syntax layer. This layer can also handle the encryption and decryption required by the application layer.

Question 43

Layer 7 OSI Model

Answer 43

Application Layer both the end user and the application layer interact directly with the software application. This layer sees network services provided to end-user applications such as a web browser or Office 365. The application layer identifies communication partners, resource availability, and synchronizes communication.

Question 44

OSI Model

Answer 44

1.Please - Physical 2.Do - Data Link 3.Not - Network 4.Throw - Transport 5.Sausage - Session 6.Pizza - Presentation 7.Away - Application

Question 45

What are PDUs

Answer 45

Protocol data units

Question 46

PDUs

Answer 46

Payload (Layer 5-7) Layer 4 - Segment - Salavation Layer 3 - Packet - Produces Layer 2 - Frame - Frying Layer 1 - Bits - Bacon

Question 47

What are the formats of MAC addresses

Answer 47

Cisco - fcfb.fb43.2e08 Linux - 0c:fd:37:43:2e:08 Microsoft - F0-6E-0B-43-2E-08