🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books

Computer Networks Quiz 32 (10 MCQs)

This set of multiple-choice questions evaluates understanding of data segmentation, packet structure, network protocols, and TCP operation. It covers concepts such as Internet Connection Sharing (ICS), TCP retransmission, network delay, and reliable data transfer. The material assesses knowledge of network components, communication systems, and resource sharing, including file transfer and authorized access.

Quiz Instructions

Select an option to see the correct answer instantly.

1. What is the name for the widely agreed upon set of rules that standardize communication between machines?

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

Exam Relevance: CCNA, CISSP, CompTIA Network+

Difficulty: Easy

Concept notes: Protocols are standardized rules that govern how data is transmitted and received over a network.

Common Mistakes: A common mistake is confusing protocols with other network components like bandwidth, packets, or routers.

Explanations: Protocols are the agreed-upon set of rules that standardize communication between machines in a network. They define how data is formatted, transmitted, and received. Bandwidth refers to the capacity of a network, packets are units of data, and routers are devices that direct data traffic. None of these other options define the standardized rules for communication.

Option Analysis:

Option A: Bandwidth refers to the capacity of a network to transmit data, not the rules for communication.
Option B: Protocols are the standardized rules that govern communication between machines in a network.
Option C: Packets are units of data transmitted over a network, not the rules for communication.
Option D: Routers are devices that direct data traffic, not the rules for communication.

2. A system of interconnected computers.

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

Exam Relevance: CCNA, CompTIA Network+, CISSP

Difficulty: Easy

Concept notes: A network is a system of interconnected computers that can communicate and share resources.

Common Mistakes: A common misunderstanding is that "open source" or "HTTP" could be the correct answer. However, "open source" refers to software that is freely available and modifiable, and "HTTP" is a protocol used for transferring web pages.

Explanations: A network is defined as a system of interconnected computers that can communicate and share resources. This matches the description given in the question. Open source refers to software that is freely available and modifiable, and HTTP is a protocol used for transferring web pages, which are not related to the concept of interconnected computers.

Option Analysis:

Option A: Correct. A network is a system of interconnected computers.
Option B: Incorrect. Open source refers to software that is freely available and modifiable.
Option C: Incorrect. HTTP is a protocol used for transferring web pages.
Option D: Incorrect. The correct answer is provided in the options.

3. Before sending data over a network it is divided into small chunks named?

Correct Answer: Correct answer is: (A) Packets.

Exam Relevance: CCNA, CompTIA Network+, CISSP

Difficulty: Easy

Concept notes: In computer networks, data is divided into small chunks called packets before transmission.

Common Mistakes: A common misunderstanding is that data is sent as a single large block or file, rather than being divided into smaller packets.

Explanations: Data is divided into packets to facilitate efficient transmission over a network. 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 allows the network to route and reassemble the data at the destination.

Option Analysis:

Option A: Correct. Data is divided into packets before transmission.
Option B: Incorrect. "Blocks" is not the standard term used in computer networks for data chunks.
Option C: Incorrect. "Bytes" refer to individual units of data, not the chunks used for transmission.
Option D: Incorrect. "Packages" is not the correct term used in computer networks for data chunks.

4. Which of the following refers to the channels through which the information moves from sender to receiver?

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

Exam Relevance: CCNA, CompTIA Network+, CISSP

Difficulty: Easy

Concept notes: In computer networks, media refers to the channels or pathways through which information is transmitted from the sender to the receiver.

Common Mistakes: A common misunderstanding is to confuse media with the sender or receiver themselves, rather than the channels through which information is transmitted.

Explanations: In the context of computer networks, media are the physical or logical channels that carry data from one point to another. These can include cables, wireless signals, or any other means of transmitting information. The term "media" encompasses the various types of transmission channels used in networking, such as wired (e.g., Ethernet cables) and wireless (e.g., Wi-Fi signals).

Option Analysis:

Option A: Messenger refers to the entity or system that sends the information, not the channel through which it is transmitted.
Option B: Media refers to the channels or pathways through which information is transmitted, making it the correct answer.
Option C: Sender refers to the entity or system that initiates the transmission of information, not the channel through which it is transmitted.
Option D: Creator is not a term typically used in the context of information transmission in computer networks.

5. Which allows multiple computers to connect to the Internet using the same Internet connection and IP address?

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

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

Difficulty: Easy

Concept notes: ICS stands for Internet Connection Sharing, which allows multiple devices to share a single Internet connection and IP address.

Common Mistakes: A common mistake is confusing ICS with other technologies like Cloud Computing or ICQ, which do not directly facilitate sharing an Internet connection.

Explanations: ICS (Internet Connection Sharing) is a feature that allows multiple computers to connect to the Internet using a single Internet connection and IP address. This is commonly used in home networks where a single broadband connection is shared among multiple devices. Cloud Computing and ICQ do not provide this functionality.

Option Analysis:

Option A: Cloud Computing is a model for delivering computing services over the Internet and does not directly facilitate sharing an Internet connection among multiple devices.
Option B: ICS (Internet Connection Sharing) is the correct answer as it allows multiple computers to share a single Internet connection and IP address.
Option C: ICQ is an instant messaging service and does not provide Internet Connection Sharing functionality.
Option D: All the above is incorrect because only ICS provides the functionality to share an Internet connection among multiple devices.

6. What is the technical word for 'Delay'?

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

Exam Relevance: CCNA, CompTIA Network+, CISSP

Difficulty: Easy

Concept notes: Latency refers to the delay in data transmission over a network.

Common Mistakes: A common mistake is confusing latency with bandwidth, which measures the capacity of a network to transmit data.

Explanations: In computer networks, latency is the technical term for the delay that occurs when data is transmitted from one point to another. It measures the time it takes for a packet of data to travel from the source to the destination. This delay can be caused by various factors such as the physical distance between devices, network congestion, and processing delays at routers and switches.

Option Analysis:

Option A: Bandwidth refers to the capacity of a network to transmit data, not the delay.
Option B: Latency is the correct term for delay in data transmission.
Option C: Backbone router is a device that routes data in a network, not a measure of delay.
Option D: Web server is a device that hosts websites, not a measure of delay.

7. What is a common use of a computer network?

Correct Answer: Correct answer is: (C) File Sharing.

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

Difficulty: Easy

Concept notes: A computer network is a system where multiple computers are connected to share resources and information. File sharing is a common use of computer networks, allowing users to access and share files across different devices.

Common Mistakes: A common mistake is to confuse the use of a computer network with unrelated activities like gardening or cooking, which are not directly related to the functionality of a computer network.

Explanations: File sharing is a fundamental function of computer networks. It allows users to access and share files such as documents, images, and videos across different devices connected to the network. This enhances collaboration and resource sharing among users.

Option Analysis:

Option A: Gardening is not related to computer networks.
Option B: Cooking is not related to computer networks.
Option C: File sharing is a common use of computer networks.
Option D: Driving is not related to computer networks.

8. It consists of a series of guidelines that establish the way in which two teams communicate with each other:

Correct Answer: Correct answer is: (C) Communication protocols.

Exam Relevance: CCNA, CISSP, CompTIA Network+

Difficulty: Moderate

Concept notes: Communication protocols are predefined rules and standards that govern how data is transmitted and received over a network. They ensure that two or more devices can communicate effectively and understand each other.

Common Mistakes: A common misunderstanding is that codes or networks themselves establish communication rules, but they do not. Codes are specific sets of rules or symbols, and networks are the infrastructure for data transmission, not the rules themselves.

Explanations: Communication protocols establish the way in which two teams (or devices) communicate with each other. They define the format, timing, and rules for data transmission, ensuring that both parties can exchange information reliably and efficiently. This makes communication protocols the correct answer as they are specifically designed to facilitate communication between devices in a network.

Option Analysis:

Option A: Codes are sets of rules or symbols used for encoding and decoding messages, but they do not establish the rules for communication between devices.
Option B: Networks are the infrastructure that allows devices to connect and exchange data, but they do not define the rules for communication.
Option C: Communication protocols are the correct answer as they define the rules and standards for data transmission and reception between devices.
Option D: Communication is the general term for the exchange of information, but it does not specify the rules and standards that govern this exchange.

9. What happens if some packets are missing during data transfer?

Correct Answer: Correct answer is: (B) The data is sent again until all packets are received.

Exam Relevance: CCNA, CISSP, CompTIA Network+

Difficulty: Moderate

Concept notes: In computer networks, when packets are missing during data transfer, protocols like TCP ensure that the missing packets are retransmitted until all packets are successfully received.

Common Mistakes: A common misunderstanding is that missing packets are simply ignored, leading to incomplete data delivery.

Explanations: TCP (Transmission Control Protocol) ensures reliable data transfer by retransmitting missing packets. When a packet is lost, the receiver sends an acknowledgment (ACK) for the last correctly received packet, prompting the sender to resend the missing packet. This process continues until all packets are successfully received.

Option Analysis:

Option A: Incorrect. Data is not lost permanently; TCP ensures retransmission of missing packets.
Option B: Correct. TCP retransmits missing packets until all packets are received.
Option C: Incorrect. Data is not delivered as is; missing packets are retransmitted.
Option D: Incorrect. Data is not reassembled from other packets; missing packets are retransmitted.

Mnemonic: TCP Retransmits, Ensuring Delivery (TRED)

10. A ..... shares hardware, Software, and data among authorized users.

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

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

Difficulty: Easy

Concept notes: A network is a system that allows multiple devices to share hardware, software, and data among authorized users.

Common Mistakes: A common misunderstanding is that a protocol or a hyperlink can share hardware, software, and data, but these are not systems designed for sharing resources among users.

Explanations: A network is designed to facilitate the sharing of hardware, software, and data among authorized users. This sharing is a fundamental characteristic of network systems, enabling users to access and utilize resources across multiple devices and locations.

Option Analysis:

Option A: Correct. A network allows sharing of hardware, software, and data among authorized users.
Option B: Incorrect. A protocol is a set of rules for communication between devices, not a system for sharing resources.
Option C: Incorrect. A hyperlink is a reference to a document or other resource on the internet, not a system for sharing resources.
Option D: Incorrect. A transmitter is a device that sends signals, not a system for sharing resources.

Frequently Asked Questions

What is the purpose of computer networks?

Computer networks allow interconnected computers to share resources, communicate, and exchange data efficiently. They enable file sharing, resource sharing, and standardized communication among authorized users.

How does packet switching work in a network?

Packet switching breaks data into smaller units called packets, which are transmitted independently across a network. Each packet is routed based on network conditions and reassembled at the destination to ensure reliable data transfer.

What is TCP retransmission?

TCP retransmission is a mechanism used to ensure reliable data transfer. If a packet is lost or damaged during transmission, TCP will detect the issue and resend the packet to maintain data integrity.

What are network protocols?

Network protocols are a set of rules and standards that govern data transmission between devices in a network. They ensure that data is transmitted accurately and efficiently, and they define how devices communicate with each other.

What is Internet Connection Sharing (ICS)?

Internet Connection Sharing (ICS) is a feature that allows multiple devices to share a single internet connection. It enables a host computer to act as a gateway, providing network access to other devices connected to it.

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