Computer networking MCQ – Change your future

711. A Computer, specially reserved for the Server purpose

Correct Answer: Correct answer is: (A) Dedicated Server.

Exam Relevance: CISSP, CompTIA Server+, Network+

Difficulty: Easy

Concept notes: A dedicated server is a computer that is specifically reserved and configured to perform a single system process or service.

Common Mistakes: Students may confuse a dedicated server with other types of servers, such as file servers or printer servers, which have specific functions but are not necessarily dedicated to a single purpose.

Explanations: A dedicated server is a computer that is specifically reserved and configured to perform a single system process or service. This means that the server is not shared with other processes or services, and it is optimized for the specific task it is assigned. This makes it the correct answer for a computer specially reserved for server purposes.

Option Analysis:

Option A: Correct. A dedicated server is a computer specifically reserved for server purposes.
Option B: Incorrect. A file server is a dedicated server, but the term "file server" is more specific to file storage and sharing.
Option C: Incorrect. A non-dedicated server shares resources with other processes, which contradicts the requirement of being specially reserved for server purposes.
Option D: Incorrect. A printer server is a dedicated server, but it is specific to printer management and does not encompass the broader concept of a server reserved for general server purposes.

Mnemonic: Dedicated = Devoted to One Task

712. Network layer was designed to solve problem of delivery through

Correct Answer: Correct answer is: (C) Several Link.

Exam Relevance: CCNA, CISSP, CompTIA Network+

Difficulty: Moderate

Concept notes: The network layer is responsible for routing data packets across multiple links to ensure delivery from the source to the destination.

Common Mistakes: Students may confuse the network layer with the data link layer, which operates on a single link.

Explanations: The network layer was designed to solve the problem of delivering data packets through several links. This layer is responsible for routing packets across different networks, ensuring that data can travel from the source to the destination, even if it requires passing through multiple intermediate links. The network layer uses routing protocols to determine the best path for data transmission, making it capable of handling complex network topologies with multiple links.

Option Analysis:

Option A: The data link layer operates on a single link, not the network layer.
Option B: "Multilevel Link" is not a standard term in networking and does not accurately describe the network layer's function.
Option C: The network layer is designed to handle delivery through several links, making this the correct answer.
Option D: Unicast link refers to a single point-to-point connection, which is not the primary function of the network layer.

713. The end points of a transport connection are called.....

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

Exam Relevance: CCNA, CISSP, CompTIA Network+

Difficulty: Easy

Concept notes: TSAPs, or Transport Service Access Points, are the endpoints of a transport connection in the OSI model.

Common Mistakes: Students may confuse TSAPs with other SAPs (Service Access Points) such as NSAPs (Network Service Access Points) or PSAPs (Physical Service Access Points).

Explanations: TSAPs are the endpoints of a transport connection in the OSI model. They are used to establish, maintain, and terminate transport connections between communicating entities. The transport layer is responsible for end-to-end communication, and TSAPs are the specific points where this communication is initiated and terminated.

Option Analysis:

Option A: TSAPs are the correct endpoints of a transport connection.
Option B: AAL-SAPs are not related to transport connections; they are used in ATM (Asynchronous Transfer Mode) networks.
Option C: NSAPs are endpoints in the network layer, not the transport layer.
Option D: PSAPs are endpoints in the physical layer, not the transport layer.

Mnemonic: Think "T" for "Transport" in TSAPs.

714. Which domain name would be an example of a top-level domain?

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

Exam Relevance: CISSP, CompTIA Network+, CCNA

Difficulty: Easy

Concept notes: A top-level domain (TLD) is the last part of a domain name, such as .com, .org, or .edu. It is the highest level in the domain name system hierarchy.

Common Mistakes: Students often confuse the entire domain name with the top-level domain. The top-level domain is only the suffix, not the full domain name.

Explanations: The top-level domain is the part of the domain name that comes after the last dot. In the given options, only ".com" represents a top-level domain.

Option Analysis:

Option A: "www.cisco.com" is a fully qualified domain name, not a top-level domain.
Option B: "cisco.com" is a second-level domain, not a top-level domain.
Option C: ".com" is a top-level domain.
Option D: "root.cisco.com" is a subdomain, not a top-level domain.

715. Which of the following digits are known as the terminal number of the network user address

Correct Answer: Correct answer is: (C) 8-12.

Exam Relevance: Computer Networks, Telecommunications, Network Engineering

Difficulty: Moderate

Concept notes: The terminal number of a network user address refers to the specific digits that identify the end user within a network. These digits are crucial for routing and addressing within the network infrastructure.

Common Mistakes: Students often confuse the terminal number with other segments of the network address, such as the country code or the area code.

Explanations: The terminal number of a network user address is typically the last few digits that uniquely identify the end user within the network. In this context, the digits 8-12 are designated as the terminal number. This is a standard convention in many network addressing schemes, where the terminal number is used to distinguish individual users or devices within a larger network structure.

Option Analysis:

Option A: Digits 5-7 are not the terminal number in this context.
Option B: Digits 1-4 are typically part of the country or area code, not the terminal number.
Option C: Digits 8-12 are the terminal number, as specified in the question.
Option D: Digits 13-14 are not typically part of the terminal number in standard network addressing schemes.

716. Full form of MAN

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

Exam Relevance: CCNA, CISSP, CompTIA Network+

Difficulty: Very Easy

Concept notes: The full form of MAN is Metropolitan Area Network.

Common Mistakes: Students may confuse MAN with other network types like LAN (Local Area Network) or WAN (Wide Area Network).

Explanations: MAN stands for Metropolitan Area Network, which is a type of network that covers a larger geographical area than a LAN but smaller than a WAN. It is typically used to connect multiple LANs within a city or a metropolitan area.

Option Analysis:

Option A: Correct. MAN stands for Metropolitan Area Network.
Option B: Incorrect. Media Area Network is not a standard term.
Option C: Incorrect. Modem Area Network is not a standard term.
Option D: Incorrect. The correct answer is provided in Option A.

Mnemonic: MAN: Metropolitan Area Network

717. Before data can be transmitted, they must be transformed to.....

Correct Answer: Correct answer is: (B) Electromagnetic signals.

Exam Relevance: Networking exams, Telecommunications exams, Computer Science exams

Difficulty: Easy

Concept notes: Data transmission requires the conversion of digital or analog data into a form that can be transmitted over a medium. Electromagnetic signals are commonly used for this purpose as they can travel through various media, including wires, cables, and air.

Common Mistakes: Students may confuse periodic signals with electromagnetic signals, thinking that periodicity is the key requirement for transmission.

Explanations: Before data can be transmitted, they must be transformed into electromagnetic signals. This is because electromagnetic signals can propagate through various media, such as wires, cables, and air, making them ideal for data transmission. Periodic signals, aperiodic signals, and low-frequency sine waves are not as versatile for transmission over different media.

Option Analysis:

Option A: Periodic signals are not the only type of signals used for data transmission. Electromagnetic signals encompass a broader range of signal types.
Option B: Electromagnetic signals are the correct choice as they can be transmitted through various media and are commonly used for data transmission.
Option C: Aperiodic signals are not specifically required for data transmission; electromagnetic signals can be either periodic or aperiodic.
Option D: Low-frequency sine waves are not the only type of signals used for data transmission. Electromagnetic signals can have a wide range of frequencies.

718. Network layer of TCP/IP is responsible for

Correct Answer: Correct answer is: (B) Logical addressing.

Exam Relevance: CCNA, CISSP, CompTIA Network+

Difficulty: Easy

Concept notes: The network layer of the TCP/IP model is responsible for logical addressing, which involves the use of IP addresses to route data packets across different networks.

Common Mistakes: Students often confuse the network layer with the data link layer, which is responsible for physical addressing using MAC addresses.

Explanations: The network layer is responsible for logical addressing, which involves the use of IP addresses to route data packets across different networks. This layer ensures that data packets are correctly addressed and routed to their destination, regardless of the physical network infrastructure. Physical addressing, which involves MAC addresses, is handled by the data link layer, not the network layer.

Option Analysis:

Option A: Physical addressing is not the responsibility of the network layer; it is handled by the data link layer.
Option B: Logical addressing is the correct responsibility of the network layer, involving the use of IP addresses.
Option C: Port addressing is not the responsibility of the network layer; it is handled by the transport layer.
Option D: Both A and C are incorrect as they refer to responsibilities of other layers, not the network layer.

Mnemonic: IP for Network, MAC for Link

719. The state when dedicated signals are idle are called

Correct Answer: Correct answer is: (C) Silent period.

Exam Relevance: GATE, ECE, EE

Difficulty: Easy

Concept notes: In telecommunications and signal processing, the state when dedicated signals are idle is referred to as the silent period.

Common Mistakes: Students may confuse the term "silent period" with other technical terms like "death period" or "poison period," which are not standard terms in this context.

Explanations: The term "silent period" is used to describe the state when dedicated signals are not transmitting any data or are idle. This is a standard term in telecommunications and signal processing, making it the correct answer.

Option Analysis:

Option A: "Death period" is not a standard term used in telecommunications for idle signals.
Option B: "Poison period" is not a standard term used in telecommunications for idle signals.
Option C: "Silent period" is the correct term for the state when dedicated signals are idle.
Option D: "None of the mentioned" is incorrect as "Silent period" is the correct term.

720. The header length of an IPv6 datagram is.....

Correct Answer: Correct answer is: (D) 40bytes.

Exam Relevance: CCNA, CISSP, CompTIA Network+

Difficulty: Easy

Concept notes: The header length of an IPv6 datagram is fixed at 40 bytes.

Common Mistakes: Students may confuse the header length of IPv6 with that of IPv4, which is variable and typically 20 bytes.

Explanations: The IPv6 header is designed to be a fixed length of 40 bytes. This simplifies processing and reduces the complexity of routers and other network devices. The fixed length ensures consistent handling of packets, which is crucial for efficient network operations.

Option Analysis:

Option A: 10 bytes is incorrect as it is significantly smaller than the actual fixed length of 40 bytes.
Option B: 25 bytes is incorrect as it does not match the fixed length of 40 bytes.
Option C: 30 bytes is incorrect as it does not match the fixed length of 40 bytes.
Option D: 40 bytes is the correct fixed length of the IPv6 header.

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Computer networking MCQ - Set 72

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