Internet Connectivity Review

In a school project, Michael is asked to set up a network for the computer lab. He decides to use a topology where all computers are connected to a central device. What is another name for this star network topology?

• Pentagon

• Hub-and-spoke

• Blast

• Wheel

Answer explanation

A star network topology is often referred to as a hub-and-spoke model because it features a central hub connected to multiple nodes, resembling a wheel with spokes. This term highlights the central role of the hub in the network.

James is trying to connect two devices that use IPv6 over a network that only supports IPv4. Which method should he use?

• Dual stack

• Tunneling

• SLAAC

• Virtualization

Answer explanation

Tunneling is a method that encapsulates IPv6 packets within IPv4 packets, allowing communication between IPv6 networks over an IPv4 infrastructure. This makes it the correct choice for enabling IPv6 communication over IPv4.

What is an access point?

• A hub that accepts wireless clients through an analog wireless signal

• An electronic device that can be used to increase network connect beyond the standard range

• A device that modulates an analog carrier signal to encode digital information and demodulates the signal to decode the transmitted information

• A network device that connects two similar network segments together

Answer explanation

An access point is a hub that accepts wireless clients through an analog wireless signal, allowing devices to connect to a network wirelessly. This makes it the correct choice among the options provided.

What is a hub?

• A network device that connects two similar network segments together

• A network device that connects all the segments of a network together in a star topology Ethernet network

• A network device used to connect multiple network segments together

• A device that modulates an analog carrier signal to encode digital information and demodulates the signal to decode the transmitted information

Answer explanation

A hub is a network device that connects all segments of a network together in a star topology Ethernet network, allowing devices to communicate within the same network efficiently.

Rohan is setting up a small office network and is considering using a SOHO network switch. What are the limitations he might face with this switch?

• It cannot handle more than 100 Mbps speeds.

• It only supports wired connections.

• It has limited ports and cannot manage large networks.

• It cannot be used for any network security functions.

Answer explanation

A SOHO network switch typically has a limited number of ports, making it unsuitable for managing large networks. This limitation restricts its scalability and overall network management capabilities.

What is latency as it relates to satellite Internet?

• The speed at which data is downloaded

• The time delay due to data traveling to and from satellites

• The amount of data that can be uploaded

• The frequency of data connection interruptions

Answer explanation

Latency in satellite Internet refers to the time delay caused by data traveling to and from satellites, which is significantly longer than terrestrial connections due to the distance involved.

Michael is setting up a new internet connection for his home and comes across the term DOCSIS. He wants to know what DOCSIS stands for and what the current DOCSIS standard is.

• Digital Cable Standard; DOCSIS 4.0

• Data Over Cable Service Interface Specification; DOCSIS 4.0

• Data Over Communication Systems Internet Standard; DOCSIS 3.1

• Direct Optical Cable Standard Internet Service; DOCSIS 3.1

Answer explanation

DOCSIS stands for Data Over Cable Service Interface Specification. The current standard is DOCSIS 4.0, which enhances data transmission capabilities over cable networks, making the second answer choice correct.

What is a modem?

• A network device that connects all the segments of a network together in a star topology Ethernet network

• A network device used to connect multiple network segments together

• A device that modulates an analog carrier signal to encode digital information and demodulates the signal to decode the transmitted information

• A hub that accepts wireless clients through an analog wireless signal

Answer explanation

A modem is specifically designed to modulate and demodulate signals, allowing digital data to be transmitted over analog communication lines. This makes the correct choice the one that describes its function in encoding and decoding information.

Rohan is setting up a network for his small business. He needs to understand the difference between a line and a trunk in network terminology. What should he know?

• A line connects two networks, while a trunk connects multiple networks.

• A line is a high-speed connection, while a trunk is slower.

• A line connects two devices, while a trunk connects multiple devices.

• A line handles data transmission only, while a trunk handles data and voice.

Answer explanation

A line connects two networks, facilitating direct communication between them, while a trunk connects multiple networks, allowing for broader data exchange and management across various connections.

In a company where Avery is responsible for network security, what is the purpose of a DMZ in their enterprise network?

• To connect remote employees securely.

• To provide internet access for guests.

• To host public-facing services securely.

• To isolate all internal devices.

Answer explanation

A DMZ (Demilitarized Zone) is designed to host public-facing services securely, such as web servers and email servers, while protecting the internal network from external threats.