Topologies
A school network uses a star topology in each classroom, but the buildings are interconnected using a ring topology. This overall design is an example of this type of topology.
What is a Star Hybrid Topology?
This OSI layer is responsible for displaying data in a format humans can understand, such as text, images, and videos in a web browser.
What is the Application Layer (Layer 7)?
This type of network is designed for a small office or home office and typically connects a handful of computers, printers, mobile devices, and an Internet connection.
What is a SOHO (Small Office/Home Office) Network?
This is the first step in the CompTIA Network+ troubleshooting methodology and involves identifying symptoms, gathering information, and questioning users.
What is Identify the Problem?
This layer manages end-to-end communications. A port number identifies each application, such as 80 for hypertext transfer protocol (HTTP) web traffic.
What is the transport layer (layer 4)?
In this topology, each device is connected directly to every other device, providing the highest level of redundancy but requiring many connections.
What is a Mesh Topology?
A network administrator configures IP addresses and default gateways on several devices. These addresses are used primarily at this OSI layer.
What is the Network Layer (Layer 3)?
In most SOHO environments, this single device commonly combines the functions of a router, switch, wireless access point, and firewall.
What is a SOHO Router (Wireless Router)?
After identifying the problem, a technician develops a likely explanation for the issue. This troubleshooting step is known as this.
What is Establish a Theory of Probable Cause?
This binary number is equal to the decimal number 10.
What is 1010?
In this topology, each device is connected to exactly two neighboring devices, forming a continuous loop for data transmission.
What is a Ring Topology?
This OSI layer breaks large amounts of data into segments and can provide reliable communication through acknowledgments and retransmissions.
What is the Transport Layer (Layer 4)?
A small business owner wants employees to connect laptops, tablets, and smartphones without running Ethernet cables to every workstation. This networking technology would best meet that need.
What is Wi-Fi (Wireless Networking)?
When troubleshooting a software issue reported by a user who is unfamiliar with technical terms, this type of question is MOST effective to begin the diagnostic process.
What is asking them to describe what they were doing when the issue occurred?
These layers are responsible for network services directly to the user's applications, such as email, file transfer, and other network software services. responsible for the translation, encryption, and compression of data. establishes, manages, and terminates connections between applications.
What are the Application (7), Presentation (6), & Session (5) layers?
This Network topology has a Single Point of Failure (SPoF)
What is a Star?
Encryption, compression, and data translation are common responsibilities of this OSI layer.
What is the Presentation Layer (Layer 6)?
A consultant recommends changing the default administrator password and enabling WPA3 on the wireless network. The primary goal of these actions is to improve this aspect of the SOHO network.
What is network Security?
The last step in troubleshooting is this. This gives you the opportunity to add a complete description of the problem and its solution, including findings, actions, and outcomes.
What is document findings?
Each digit can represent sixteen different values. The numerals 0 through 9 are used for values zero to nine, and the letters A through F are used for values ten to fifteen, respectively.
What is hexadecimal?
In this topology, all devices share a single backbone cable. If the backbone is damaged, communication across the network can be disrupted.
What is a bus topology?
During encapsulation, this Protocol Data Unit (PDU) is created at Layer 2 before the data is converted to bits and sent across the network.
What is a Frame?
A customer complains that devices connected to the office switch can communicate with one another, but none of them can reach websites on the Internet. The technician suspects the problem is with the device that connects the local network to external networks.
What is the router?
A technician resolves an issue with a wireless access point but immediately moves on to another ticket without documenting the problem, solution, or outcome. Which step of the CompTIA troubleshooting methodology was skipped?
What is Document Findings, Actions, Outcomes, and Lessons Learned?
A network administrator converts the binary number 110101 into decimal. The resulting decimal value is this.
What is 53?