WGU D315 Section 1

is a command-line utility used in Windows operating systems to display and manage the network configuration of the system. It is commonly used for troubleshooting network issues and gathering network-related information.

ipconfig

3 multiple choice options

is a command-line utility used for querying the Domain Name System (DNS) to obtain domain name or IP address mapping information. It is commonly used for diagnosing and troubleshooting DNS-related issues.

nslookup

3 multiple choice options

is a command-line utility used to test the reachability of a host on an Internet Protocol (IP) network. It is one of the most basic network troubleshooting tools and provides valuable information about the status and performance of network connections.

ping

3 multiple choice options

is a command-line utility used for displaying network connections, routing tables, interface statistics, masquerade connections, and multicast memberships. It is available on various operating systems, including Windows, macOS, and Unix-like systems.

netstat

3 multiple choice options

is a command-line utility used to trace the path that packets take from a source host to a destination host across an IP network. It helps identify the route packets follow and can be used to diagnose network issues such as delays, routing loops, or unreachable destinations.

traceroute(linux) or tracert(windows)

3 multiple choice options

is used to display and manipulate the IP routing table on a system. It shows how packets are routed from your machine to various destinations. The routing table contains information about network paths and can be used to troubleshoot and manage network routes.

route

3 multiple choice options

is a command-line utility used primarily to configure and display network interfaces on a system.

ifconfig

3 multiple choice options

is used to display the ARP (Address Resolution Protocol) cache or table on a computer. ARP is used to map IP addresses to MAC addresses on a local network segment.

arp -a

3 multiple choice options

a network that connects computers and devices in a limited geographical area such as a home, school, office building, or a group of buildings, typically within a range of a few hundred meters to a few kilometers.

LAN(Local Area Network)

a type of network that spans a large geographical area, often a country, continent, or even globally. Can connect multiple LANs and other types of networks together, allowing computers and users in one location to communicate with those in other locations.

WAN(Wide Area Network)

This is a type of network that interconnects buildings and areas within a limited geographic area, such as a university campus, corporate campus, or military base.

CAN(Campus Area Network)

It is a specialized high-speed network that connects storage devices, such as disk arrays, tape libraries, and servers, to provide block-level data storage.

SAN(Storage Area Network)

It is a type of network that typically spans a larger geographic area than a Local Area Network (LAN) but smaller than a Wide Area Network (WAN). Used to connect multiple LANs within a city or metropolitan area, providing high-speed connectivity and facilitating communication between various locations.

MAN(Metropolitan Area Network)

It is a type of network used for connecting devices in close proximity to an individual person, typically within a range of a few meters.

PAN(Personal Area Network)

is a virtualization technology that runs directly on the physical hardware of a server or host machine. It operates without the need for a separate underlying operating system (OS) and manages virtual machines (VMs) directly on the hardware.

Type 1 hypervisor

known as a hosted hypervisor, is a virtualization technology that runs on top of a host operating system (OS) rather than directly on the physical hardware.

Type 2 hypervisor

This is the topmost layer, where applications that use the network operate. It includes protocols like HTTP, FTP, SMIP, IMAP, SMTP

Application Layer

3 multiple choice options

is responsible for the logical addressing, routing, and packet forwarding necessary to transmit data across networks. IP, ICMP, ARP, RARP, IGMP

Network Layer

3 multiple choice options

is responsible for providing end-to-end communication services for applications. It ensures that data is transferred reliably, efficiently, and accurately between devices. TCP, UDP

Transport Layer

3 multiple choice options

is responsible for the physical transmission of data on the network. This layer encompasses protocols and technologies that handle the hardware addressing and actual transmission of data frames over physical media. Ethernet, WIFI, PPP, SLIP, ATM, Frame Relay, Token Ring, FDDI

Network Interface Layer

3 multiple choice options

used to understand and design the protocols for network communication. It is the foundation for the internet and modern networking, specifying how data should be packetized, addressed, transmitted, routed, and received.

TCP/IP Model

3 multiple choice options

used to understand and implement network protocols in seven distinct layers. Each layer performs a specific function and communicates with the layers directly above and below it.

OSI Model

3 multiple choice options

Deals with the physical connection between devices and the transmission of raw binary data over a communication medium. Examples: Ethernet cables, fiber optics, radio frequencies. DSL, ISDN, Ethernet, WIFI, Fiber Optic Communication, Bluetooth, USB, Infrared Communication

Physical Layer

3 multiple choice options

is responsible for node-to-node data transfer and error detection and correction. It ensures that data is reliably transmitted across the physical network and prepares data packets for transmission to the Network Layer. MAC addresses, ARP, PPP, HDLC, LLC. Switches, NIC, Token Ring, Frame Relay, Bridge.

Data Link Layer

3 multiple choice options

Handles logical addressing, routing, and packet forwarding between devices on different networks. Determines the best path for data to travel from the source to the destination. IP, IPX, IPSec, RIP, IPv4, IPv6, ICMP, Router, Layer 3 switches.

Network Layer

3 multiple choice options

Provides end-to-end communication services and ensures complete data transfer. Responsible for flow control, error detection, and retransmission of lost data. Network Operating System. Ensures Error Free Packets. TCP, UDP

Transport Layer

3 multiple choice options

Manages sessions or connections between applications on different devices. Establishes, maintains, and terminates sessions and handles session synchronization and dialog control. Network Operating System. NFS, SQL, PPTP, NetBIOS, PAP, SCP (tunneling)

Session Layer

3 multiple choice options

Translates data between the application layer and the network format. Handles data encryption, compression, and translation from one data format to another. SSL, ASCII, JPEG, MIDI, MPEG, GIF, MP3, MP4

Presentation Layer

3 multiple choice options

Provides network services directly to end-user applications. Interfaces with the software applications to implement a communicating component. Application software, network applications. Anything you can see with your eyeballs like web browsers and email. HTTP, FTP, SMIP, IMAP, SMTP

Application Layer

3 multiple choice options

a type of cloud computing environment where the cloud infrastructure is dedicated to a single organization.

Private Cloud Deployment

3 multiple choice options

a type of cloud computing environment where services and infrastructure are provided by a third-party provider and shared among multiple organizations or the general public.

Public Cloud Deployment

3 multiple choice options

is a computing environment that integrates on-premises private cloud infrastructure with public cloud services. This approach allows organizations to benefit from the flexibility and scalability of public cloud platforms while maintaining control over critical data and applications in a private cloud.

Hybrid Cloud Deployment

3 multiple choice options

is a type of cloud computing environment where the cloud infrastructure is shared among several organizations that have common concerns, such as security, compliance, or jurisdictional considerations.

Community Cloud Deployment

3 multiple choice options

is a cloud computing model that provides virtualized computing resources over the internet.

Infrastructure as a Service (IaaS)

3 multiple choice options

is a cloud computing model that provides a platform allowing customers to develop, run, and manage applications without the complexity of building and maintaining the underlying infrastructure.

Platform as a Service (PaaS)

3 multiple choice options

is a cloud computing model that delivers software applications over the internet, on a subscription basis. Instead of installing and maintaining software locally, users can access these applications through a web browser.

Software as a Service (SaaS)

3 multiple choice options

a network configuration where each device (node) is connected to a single central cable, known as the bus or backbone. Data sent from a device travels along the bus in both directions and can be received by all other devices on the network.

Bus Topology

3 multiple choice options

a network configuration where each node is interconnected with every other node in the network. This type of topology is characterized by the redundancy and reliability it offers, as there are multiple paths for data to travel between nodes.

Mesh Topology

3 multiple choice options

a network configuration where each device (node) in the network is connected directly to a central hub or switch, which acts as a conduit to transmit data between devices. This central device manages and controls the flow of data in the network.

Star Topology

3 multiple choice options

a network configuration where each device (node) is connected directly to two other devices, forming a circular pathway or ring. Data travels from one device to the next in a unidirectional manner until it reaches its destination.

Ring Topology

3 multiple choice options