Understanding the Internet and Internet Speed

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What is the Internet composed of?

Millions of standalone computers
Large global networks only
Small local networks only
Millions of interconnected computers and networks (correct)

What is Internet bandwidth typically measured in?

Kilobytes per minute
Megabits per second (Mbps) or gigabits per second (Gbps) (correct)
Packets per second
Bytes per second

What refers to the maximum capacity of an internet connection?

Internet speed
Latency
Throughput
Bandwidth (correct)

What is the term for the delay or time it takes for data to travel from its source to its destination in a network?

Latency (B) Signup and view all the answers

Why does the actual internet speed often differ from the advertised speed?

Due to internet traffic (D) Signup and view all the answers

What is the primary advantage of lower latency in data transmission?

Faster and more responsive communication (D) Signup and view all the answers

Which of the following factors can contribute to network congestion and increased latency?

Malware interference with network interfaces (C) Signup and view all the answers

What is the primary benefit of boosting bandwidth in an internet connection?

Enhancing the speed and capacity of data transmission (C) Signup and view all the answers

Which of the following internet connection types is known for its exceptionally high-speed capabilities and reliability?

Fiber Optics (C) Signup and view all the answers

What is the purpose of caching data in a special pool of memory?

To quickly fetch frequently repeated data (A) Signup and view all the answers

What is an advantage of using DSL over traditional dial-up connections?

It allows for simultaneous internet access and phone use. (B) Signup and view all the answers

What is the primary function of a DSL Splitter?

To separate the voice and data signals on a telephone line (A) Signup and view all the answers

What is the term 'asynchronous' in ADSL referring to?

The uneven allocation of bandwidth in different directions (B) Signup and view all the answers

What is the main difference between VDSL and ADSL?

VDSL provides faster downstream and upstream speeds than ADSL (C) Signup and view all the answers

What is the primary difference between downstream and upstream speeds in cable connections?

Downstream speeds are for receiving data, while upstream speeds are for sending data (D) Signup and view all the answers

What is the main function of the Application Layer in network communication?

To provide network services directly to end-user applications (B) Signup and view all the answers

Which layer is responsible for subdividing the data into segments and creating checksum tests?

Transport Layer (B) Signup and view all the answers

What is the primary function of the Network Layer in network communication?

To select a route for the message (D) Signup and view all the answers

What is the role of the Data Link Layer in network communication?

To supervise the transmission and confirm the checksum (C) Signup and view all the answers

Which layer is responsible for compressing and encrypting the data?

Presentation Layer (C) Signup and view all the answers

What is a characteristic of cable networks that allows for efficient data distribution to a large number of customers?

Broadcasting the same signal to all customers in a particular area (A) Signup and view all the answers

What is the purpose of a splitter in a cable connection?

To route the signal to the cable modem for internet access (A) Signup and view all the answers

How do repeaters function in fiber-optic cables?

They amplify the light signal to maintain its strength over long distances (D) Signup and view all the answers

What is the main advantage of single-mode fibers over multimode fibers?

They have a larger bandwidth and can cover greater distances with fewer errors (A) Signup and view all the answers

What is the shape of the cells in a cellular network?

Hexagonal (A) Signup and view all the answers

What is the primary function of a SIM card in a mobile network?

To store identification information and connect to a specific mobile network (A) Signup and view all the answers

What was the major limitation of the 1G network?

It was unreliable and had security issues (D) Signup and view all the answers

What was introduced in the 2G network that was not available in the 1G network?

Transmission of text messages (A) Signup and view all the answers

How many times faster is the 4G network compared to the 3G network?

Five times (D) Signup and view all the answers

What is the primary function of the physical layer in a network?

Encodes the packets into the medium that will carry them (B) Signup and view all the answers

What is the term for the location where the data for mobile SIM cards is stored?

Mobile Tower Switching Office (MTSO) (B) Signup and view all the answers

What is the purpose of the router in a network?

To determine the best path to send the request to the proper destination (B) Signup and view all the answers

What is the function of the data-link layer in a network?

Recalculates the checksum and confirms arrival (C) Signup and view all the answers

What is the purpose of the repeaters in a network?

To receive weak or low-power signals and amplify them (B) Signup and view all the answers

What is the primary function of the gateway in a network?

To translate data between different types of networks (D) Signup and view all the answers

What is the primary function of the network layer in a network?

Recounts incoming packets for security (B) Signup and view all the answers

What is the primary function of the session layer in a network?

Holds the parts of the message until it is complete (D) Signup and view all the answers

What is the primary function of the application layer in a network?

Converts the bits into readable characters (D) Signup and view all the answers

What is the primary function of the bridge in a network?

To link LANs so that data from one network can pass through another network (D) Signup and view all the answers

What is the primary function of the hub in a network?

To link groups of networks together (C) Signup and view all the answers