🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books

Computer Networks Quiz 10 (10 MCQs)

This set of multiple-choice questions evaluates understanding of client-server interaction, request-response models, network services, and data transmission methods. It covers Ethernet technology, network cabling, communication channels, and VoIP technology. The questions assess knowledge of resource sharing, file transfer, and communication protocols, including asynchronous transmission and packet-switching. Students will be tested on their comprehension of network architecture, internet communication, and the client-server model.

Quiz Instructions

Select an option to see the correct answer instantly.

1. To move a copy of file from one computer to another over a communication channel is called?

Correct Answer: Correct answer is: (A) File transfer.

Exam Relevance: CCNA, CompTIA Network+, CISSP

Difficulty: Easy

Concept notes: File transfer is the process of moving a copy of a file from one computer to another over a communication channel.

Common Mistakes: A common misunderstanding is confusing file transfer with file copying, which only duplicates a file on the same device.

Explanations: File transfer involves moving a copy of a file from one computer to another over a communication channel. This process is distinct from file copying, which only duplicates a file on the same device. File encryption is the process of converting data into a secure format, and file modification involves changing the content of a file. Therefore, the correct term for moving a copy of a file from one computer to another is file transfer.

Option Analysis:

Option A: Correct. File transfer is the process of moving a copy of a file from one computer to another over a communication channel.
Option B: Incorrect. File encryption is the process of converting data into a secure format, not moving a file.
Option C: Incorrect. File modification involves changing the content of a file, not moving it.
Option D: Incorrect. File copying duplicates a file on the same device, not moving it to another computer.

2. Users of the network

Correct Answer: Correct answer is: (B) Clients.

Exam Relevance: CCNA, CompTIA Network+, CISSP

Difficulty: Easy

Concept notes: In computer networks, users of the network are typically referred to as clients. Clients are devices or software that request and use resources from other devices, known as servers.

Common Mistakes: A common misunderstanding is that servers are the users of the network. However, servers are the devices that provide resources to clients.

Explanations: In a network, clients are the devices or software that request and use resources from other devices, known as servers. Clients can be personal computers, smartphones, or any other device that connects to the network to access services or data. Therefore, the correct term for users of the network is clients.

Option Analysis:

Option A: Servers are not the users of the network; they provide services to clients.
Option B: Clients are the correct term for users of the network who request and use resources.
Option C: Network Interface Card (NIC) is a hardware component that allows a device to connect to a network, not a user of the network.
Option D: Transmission Media refers to the physical medium used to transmit data, such as cables or wireless signals, not the users of the network.

3. Which bit-sending technology is used for Ethernet cables?

Correct Answer: Correct answer is: (A) Electric voltage.

Exam Relevance: CCNA, CompTIA Network+, CIW Network Specialist

Difficulty: Easy

Concept notes: Ethernet cables use electric voltage to transmit data.

Common Mistakes: A common misunderstanding is that Ethernet cables use light or other forms of electromagnetic waves for data transmission, but they actually use electric voltage.

Explanations: Ethernet cables transmit data using electric voltage. The data is encoded as changes in voltage levels on the cable, which are then interpreted by the receiving device. This method is reliable and widely used in local area networks (LANs).

Option Analysis:

Option A: Correct. Ethernet cables use electric voltage to transmit data.
Option B: Incorrect. Alternating frequencies are not used in Ethernet cables for data transmission.
Option C: Incorrect. Beam of light is used in fiber optic cables, not in Ethernet cables.
Option D: Incorrect. Magic is not a real method of data transmission.

4. Which of the following is NOT a reason why VoIP has become popular?

Correct Answer: Correct answer is: (C) It uses public telephone networks.

Exam Relevance: CCNA, CISSP, CompTIA Network+

Difficulty: Moderate

Concept notes: VoIP (Voice over Internet Protocol) is a technology that allows voice communication over the internet, rather than traditional public telephone networks. It has become popular due to its ability to provide video communication, its widespread use in both business and personal contexts, and its importance as a communication method.

Common Mistakes: A common misunderstanding is that VoIP relies on public telephone networks, when in fact, it operates over the internet.

Explanations: VoIP technology operates over the internet, not public telephone networks. This makes it distinct from traditional telephony, which relies on the public switched telephone network (PSTN). The other options correctly describe reasons for VoIP's popularity, such as video communication, widespread use, and importance as a communication method.

Option Analysis:

Option A: VoIP allows video communication over the internet, which is a significant reason for its popularity.
Option B: VoIP is commonly used in both business and personal contexts, making it a popular choice.
Option C: VoIP does not use public telephone networks; it uses the internet for communication.
Option D: VoIP has become an important method of communication due to its efficiency and cost-effectiveness.

5. Bandwidth is

Correct Answer: Correct answer is: (A) The range of frequencies available for data transmission.

Exam Relevance: CCNA, CompTIA Network+, CISSP

Difficulty: Easy

Concept notes: Bandwidth in computer networks refers to the range of frequencies available for data transmission over a communication channel.

Common Mistakes: A common misunderstanding is that bandwidth is the same as data transmission rate. While related, they are distinct concepts.

Explanations: Bandwidth is defined as the range of frequencies available for data transmission. This range determines the capacity of a communication channel to carry data. The wider the bandwidth, the more data can be transmitted in a given time period. This is a fundamental concept in understanding the capacity and performance of communication channels in computer networks.

Option Analysis:

Option A: Correct. Bandwidth is the range of frequencies available for data transmission.
Option B: Incorrect. Data transmission rate is a measure of how much data can be transmitted over a given period of time, not the range of frequencies.
Option C: Incorrect. This is unrelated to computer networks and is a literal interpretation of the term "bandwidth."
Option D: Incorrect. One of the options is correct, so this cannot be true.

6. What is a group of rules and practices for communication devices?

Correct Answer: Correct answer is: (C) Protocol.

Exam Relevance: CCNA, CISSP, CompTIA Network+

Difficulty: Easy

Concept notes: A protocol is a set of rules and conventions that govern how communication devices interact and exchange data.

Common Mistakes: A common misunderstanding is that a protocol is a physical device or a type of computer, rather than a set of rules.

Explanations: A protocol defines the rules and practices for communication devices to ensure that data is transmitted accurately and efficiently. It specifies how devices should format, transmit, and receive data, ensuring compatibility and consistency in communication.

Option Analysis:

Option A: A computer is a hardware device that processes data, not a set of rules for communication.
Option B: A transmission medium is the physical path over which data travels, not a set of rules for communication.
Option C: A protocol is a set of rules and practices for communication devices, making it the correct answer.
Option D: This option is incorrect as the correct answer is provided by option C.

7. How is data typically transmitted over the internet?

Correct Answer: Correct answer is: (C) In small packets.

Exam Relevance: CCNA, CISSP, CompTIA Network+

Difficulty: Moderate

Concept notes: Data transmission over the internet is typically done using the packet-switching method, where data is broken down into small packets for efficient and reliable transmission.

Common Mistakes: A common misunderstanding is that data is transmitted as large files or continuous streams, which is not the case in packet-switching networks.

Explanations: In computer networks, data is transmitted in small packets to ensure efficient and reliable communication. Each packet contains a portion of the data along with header information that includes source and destination addresses, sequence numbers, and other control information. This method allows for better error detection and correction, and enables data to be transmitted over multiple paths, improving network efficiency and reliability.

Option Analysis:

Option A: Data is not transmitted in large files over the internet. Instead, large files are broken down into smaller packets for transmission.
Option B: Data is not transmitted in continuous streams. Continuous streams are more characteristic of circuit-switched networks, not packet-switched networks.
Option C: Data is transmitted in small packets, which is the correct method used in packet-switched networks like the internet.
Option D: Data is not transmitted in singular, large packets. Large data is broken down into smaller packets for efficient transmission.

8. A group of two or more computers working together is called a .....

Correct Answer: Correct answer is: (C) Network.

Exam Relevance: CCNA, CompTIA Network+, CISSP

Difficulty: Easy

Concept notes: A network is a group of two or more computers connected together to share resources and information.

Common Mistakes: A common misunderstanding is that hardware or software alone can form a network. However, a network specifically refers to the interconnection of multiple computers.

Explanations: A network is defined as a group of two or more computers that are connected together to share resources and communicate with each other. This interconnection allows for the exchange of data and sharing of hardware and software resources. Therefore, the correct answer is "Network."

Option Analysis:

Option A: Hardware refers to the physical components of a computer system, not the interconnection of multiple computers.
Option B: Software refers to the programs and applications that run on a computer, not the interconnection of multiple computers.
Option C: Network is the correct term for a group of two or more computers connected together to share resources and communicate.
Option D: Analyst is a job role, not a term for a group of interconnected computers.

9. It requests some type of service (such as a file or database access) from the server.

Correct Answer: Correct answer is: (B) Client.

Exam Relevance: CCNA, CompTIA Network+, CISSP

Difficulty: Easy

Concept notes: In computer networks, a client is a device or software that requests services from a server.

Common Mistakes: A common misunderstanding is that the server is the one requesting services, when in fact, the server provides services in response to client requests.

Explanations: In a client-server model, the client initiates the request for services such as file or database access. The server responds to these requests by providing the requested services. Therefore, the client is the entity that requests services from the server.

Option Analysis:

Option A: The server does not request services; it provides services in response to client requests.
Option B: The client requests services from the server, making this the correct choice.

10. In serial, asynchronous transmissions, the ..... bit is used to signal the end of the character within the data frame.

Correct Answer: Correct answer is: (B) Stop.

Exam Relevance: CCNA, CompTIA Network+, CIW Network Specialist

Difficulty: Easy

Concept notes: In serial, asynchronous transmissions, the stop bit is used to signal the end of the character within the data frame.

Common Mistakes: A common misunderstanding is that the start bit signals the end of the character, but it actually signals the beginning.

Explanations: In asynchronous serial communication, the stop bit is used to indicate the end of a character. This bit ensures that the receiver knows when the data transmission for a particular character has completed. The stop bit is always a high (1) level, which contrasts with the data bits and the optional parity bit, allowing the receiver to synchronize and detect the end of the character.

Option Analysis:

Option A: The start bit signals the beginning of the character, not the end.
Option B: The stop bit signals the end of the character, making it the correct answer.
Option C: The parity bit is used for error detection, not to signal the end of the character.
Option D: The data bits carry the actual information of the character, not the end signal.

Frequently Asked Questions

What is a computer network?

A computer network is a collection of interconnected computers and devices that can communicate with each other to share resources, data, and services.

What is the client-server model?

The client-server model is a network architecture where client devices request services from a server, which processes the requests and sends responses back to the clients.

What is bandwidth in the context of computer networks?

Bandwidth refers to the maximum data transfer rate of a network or communication channel, typically measured in bits per second (bps).

What is packet-switching?

Packet-switching is a method of transmitting data in which messages are divided into smaller units called packets, which are then routed independently across a network.

What is VoIP and how does it work?

VoIP (Voice over Internet Protocol) is a technology that allows voice communications to be transmitted over the internet, converting analog voice signals into digital data packets.

🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books