Computer networking MCQ – Change your future

481. 11.The actual arrangements of cables and nodes on a network is called .....

Correct Answer: Correct answer is: (D) Physical topology.

Exam Relevance: CCNA, Network+, CompTIA A+

Difficulty: Easy

Concept notes: Physical topology refers to the actual layout of cables, wires, and devices in a network.

Common Mistakes: Students may confuse physical topology with logical topology, which describes how data travels through the network, not the physical layout.

Explanations: The physical topology of a network is the arrangement of the physical components, such as cables and nodes, in the network. This is distinct from logical topology, which describes the way data flows through the network. Therefore, the correct term for the actual arrangement of cables and nodes is physical topology.

Option Analysis:

Option A: Geographical Topology is not a standard term used in network design and is not the correct answer.
Option B: Network Topology is a broader term that can refer to both physical and logical topologies, but it is not specific to the physical layout.
Option C: Logical Topology describes the way data flows through the network, not the physical layout of cables and nodes.
Option D: Physical Topology is the correct term for the actual arrangement of cables and nodes in a network.

482. What is essential to set up a LAN?

Correct Answer: Correct answer is: (B) Cable or WiFi.

Exam Relevance: CCNA, CompTIA Network+, IT Essentials

Difficulty: Easy

Concept notes: A Local Area Network (LAN) requires a physical or wireless medium to connect devices.

Common Mistakes: Students may mistakenly believe that a fast internet connection is essential for a LAN, but a LAN can function without an internet connection.

Explanations: A LAN is a network that connects computers and devices within a limited area, such as a home, school, or office. To establish a LAN, devices need to be connected either through cables (such as Ethernet) or wirelessly (such as WiFi). These connections allow devices to communicate with each other and share resources. While a fast internet connection can enhance the performance of a LAN, it is not essential for the basic setup and operation of a LAN.

Option Analysis:

Option A: A fast internet connection is not essential for setting up a LAN. A LAN can function without an internet connection.
Option B: Cable or WiFi is essential for setting up a LAN as it provides the necessary medium for devices to communicate.
Option C: An Ethernet adapter is useful for wired connections but is not the only essential component for setting up a LAN.
Option D: A server is not essential for a basic LAN setup. A LAN can be set up without a dedicated server.

Mnemonic: Cable or WiFi, LAN's life.

483. Which of the following is a disadvantage of a client-server network?

Correct Answer: Correct answer is: (C) The server is expensive to purchase.

Exam Relevance: IT Essentials, CompTIA A+, Network+

Difficulty: Moderate

Concept notes: In a client-server network, a central server is required to manage and store data, which can be costly to purchase and maintain.

Common Mistakes: Students may overlook the initial cost of purchasing a server, focusing instead on the benefits of centralized data management.

Explanations: A client-server network requires a dedicated server to manage and store data, which can be expensive to purchase. This cost is a significant disadvantage compared to other network types that may not require such a specialized and costly piece of hardware.

Option Analysis:

Option A: This is incorrect because files and folders can be centrally backed up in a client-server network.
Option B: This is incorrect because a client-server network does require an expensive server to manage and store files.
Option C: This is correct because the server in a client-server network is typically expensive to purchase.
Option D: This is incorrect because while files are stored centrally, this is an advantage, not a disadvantage.

484. Question 4: Which of these statements is true?

Correct Answer: Correct answer is: (A) A client-server network has a central computer that provides services to the rest of the network.

Exam Relevance: IT Essentials, CompTIA A+, Network+

Difficulty: Easy

Concept notes: In a client-server network, a central computer, known as the server, provides services to other computers, known as clients, on the network.

Common Mistakes: Students may confuse client-server networks with peer-to-peer networks, where each computer can act as both a client and a server.

Explanations: A client-server network is characterized by a central server that manages and provides services to the client computers. This centralization allows for efficient resource management and easier administration of network services.

Option Analysis:

Option A: This is the correct statement. In a client-server network, the central server provides services to the clients.
Option B: This statement is incorrect. Client-server networks can be more complex and costly to set up compared to simpler network architectures.
Option C: This statement is incorrect. Client-server networks can be used to share files, among other services.
Option D: This statement is incorrect. In a client-server network, the central server often manages and maintains the services for the clients, reducing the need for separate maintenance on each client.

485. "Networks in which certain computers have special dedicated tasks providing services to other computers (in the network) are called ..... networks."

Correct Answer: Correct answer is: (D) Client server.

Exam Relevance: CISSP, CompTIA Network+, CCNA

Difficulty: Easy

Concept notes: In a client-server network, certain computers (servers) provide services to other computers (clients) in the network.

Common Mistakes: Students may confuse client-server networks with peer-to-peer networks, where all computers have equal roles.

Explanations: In client-server networks, specific computers act as servers, providing services such as file sharing, printing, and email to other computers (clients) in the network. This dedicated role of servers makes client-server networks distinct from other network types.

Option Analysis:

Option A: Web networks refer to the World Wide Web, not a specific network architecture.
Option B: The Internet is a global network of networks, not a specific network architecture.
Option C: Network is a general term and does not specify the architecture or roles of computers.
Option D: Client-server networks have dedicated servers providing services to clients, which matches the description in the question.

486. What is a standard?

Correct Answer: Correct answer is: (A) A standard is an established norm or requirement for a repeatable technical task.

Exam Relevance: IEEE, ISO, ASME

Difficulty: Moderate

Concept notes: A standard is a set of guidelines or specifications that are established to ensure consistency and quality in a particular field or industry.

Common Mistakes: Students may confuse standards with protocols or formats, which are specific types of standards but not the general definition.

Explanations: A standard is defined as an established norm or requirement for a repeatable technical task. This means that standards are designed to provide a consistent and reliable framework for various technical processes or procedures. They are not limited to communication systems or message formats, which are specific applications of standards.

Option Analysis:

Option A: This is the correct definition of a standard, as it encompasses the general concept of established norms or requirements for technical tasks.
Option B: This describes a protocol, which is a specific type of standard used for communication systems, but not the general definition of a standard.
Option C: This describes a format, which is another specific type of standard used for exchanging messages, but not the general definition of a standard.

487. Which protocol would you use to transfer hypertext?

Correct Answer: Correct answer is: (D) HTTP.

Exam Relevance: AP Computer Science Principles, SAT Subject Test in Computer Science

Difficulty: Easy

Concept notes: HTTP (Hypertext Transfer Protocol) is used to transfer hypertext documents over the internet.

Common Mistakes: Students may confuse HTTP with other protocols like FTP, SMTP, or POP3, which are used for different purposes.

Explanations: HTTP is specifically designed for transferring hypertext documents, such as web pages, over the internet. It is the protocol used by web browsers and web servers to communicate with each other. FTP is used for file transfers, SMTP is used for sending emails, and POP3 is used for receiving emails.

Option Analysis:

Option A: FTP is used for file transfers, not for transferring hypertext.
Option B: SMTP is used for sending emails, not for transferring hypertext.
Option C: POP3 is used for receiving emails, not for transferring hypertext.
Option D: HTTP is the correct protocol for transferring hypertext.

488. PC1.3- A group of computers and other devices are connected with each other via cables or radio signals called

Correct Answer: Correct answer is: (D) Computer network.

Exam Relevance: AP Computer Science Principles, CompTIA A+, CCNA

Difficulty: Easy

Concept notes: A computer network is a group of computers and other devices connected to share resources and communicate with each other.

Common Mistakes: Students may confuse computer hardware or software with a network, as these terms are related to computing but do not specifically describe the interconnection of devices.

Explanations: A computer network is the correct term for a group of computers and devices connected via cables or radio signals to share resources and communicate. This interconnection allows for data exchange, resource sharing, and communication between devices.

Option Analysis:

Option A: Computer Hardware refers to the physical components of a computer, not the interconnection of devices.
Option B: Computer Software refers to the programs and data used by a computer, not the interconnection of devices.
Option C: Computer application refers to specific software programs designed to perform particular tasks, not the interconnection of devices.
Option D: Computer network is the correct term for a group of interconnected devices.

489. Which of these is not a network protocol?

Correct Answer: Correct answer is: (D) HDMI.

Exam Relevance: AP Computer Science Principles, SAT Subject Test in Computer Science

Difficulty: Easy

Concept notes: Network protocols are standardized rules for data communication over a network. HDMI is not a network protocol; it is a digital interface for transmitting audio and video data.

Common Mistakes: Students may confuse HDMI with network protocols because it is used for data transmission, but it is not designed for network communication.

Explanations: HTTP (Hypertext Transfer Protocol) and POP3 (Post Office Protocol version 3) are both network protocols used for specific types of data communication over the internet. Ethernet is a family of networking technologies for local area networks (LANs). HDMI (High-Definition Multimedia Interface) is a proprietary audio/video interface used for transmitting uncompressed video data and compressed or uncompressed digital audio data from a HDMI-compliant source device, such as a display controller, to a compatible computer monitor, digital television, or digital audio device.

Option Analysis:

Option A: HTTP is a network protocol used for transferring web pages and other data over the internet.
Option B: POP3 is a network protocol used for receiving emails from a mail server.
Option C: Ethernet is a family of networking technologies used for local area networks.
Option D: HDMI is not a network protocol; it is a digital interface for transmitting audio and video data.

490. Frames from one LAN can be transmitted to another LAN via the device

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

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

Difficulty: Moderate

Concept notes: A bridge is a network device that connects two separate LANs and forwards frames based on MAC addresses.

Common Mistakes: Students often confuse bridges with routers, which operate at a higher layer and use IP addresses to forward packets between different networks.

Explanations: A bridge operates at the data link layer (Layer 2) of the OSI model. It can receive frames from one LAN and transmit them to another LAN if the destination MAC address is on the other side of the bridge. This allows frames to be forwarded between LANs without the need for higher-level addressing or routing.

Option Analysis:

Option A: A router operates at the network layer (Layer 3) and uses IP addresses to forward packets between different networks, not frames between LANs.
Option B: A bridge operates at the data link layer (Layer 2) and forwards frames between LANs based on MAC addresses.
Option C: A repeater operates at the physical layer (Layer 1) and amplifies signals to extend the range of a network segment, but does not forward frames between LANs.
Option D: A modem is used to convert digital signals to analog signals and vice versa for transmission over telephone lines, and does not forward frames between LANs.

Mnemonic: Bridge = MAC forwarding

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Computer networking MCQ - Set 49

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