Computer networking MCQ – Change your future

171. Which one from this list is a file cloud server (networking server) ?

Correct Answer: Correct answer is: (B) Microsoft One Drive.

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

Difficulty: Easy

Concept notes: A file cloud server is a type of networking server that allows users to store and access files over the internet. It provides remote storage and synchronization capabilities.

Common Mistakes: Students may confuse a file cloud server with local storage devices like hard drives or flash drives, which do not offer remote access and synchronization.

Explanations: Microsoft One Drive is a file cloud server that provides remote storage and access to files over the internet. It allows users to store files in the cloud and access them from any device with an internet connection. This makes it a networking server, as opposed to local storage devices like hard drives, flash drives, or CDs/DVDs.

Option Analysis:

Option A: Your PC hard disc is a local storage device, not a cloud server.
Option B: Microsoft One Drive is a cloud-based file storage service, which qualifies it as a file cloud server.
Option C: A flash drive is a portable local storage device, not a cloud server.
Option D: A CD/DVD is a physical storage medium, not a cloud server.

172. A network that connects computers and devices in a limited geographical area such as home, school, computer laboratory, office building is called.....

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

Exam Relevance: CCNA, CompTIA Network+, ITIL Foundation

Difficulty: Easy

Concept notes: LAN stands for Local Area Network, which connects computers and devices within a limited geographical area such as a home, school, or office building.

Common Mistakes: Students may confuse LAN with other types of networks like WAN (Wide Area Network) or MAN (Metropolitan Area Network), which cover larger geographical areas.

Explanations: LAN is the correct answer because it specifically refers to a network that connects devices within a limited geographical area, such as a home, school, or office building. This network type is designed for high-speed communication and resource sharing within a confined space.

Option Analysis:

Option A: MAN stands for Metropolitan Area Network, which covers a larger area than a LAN, typically a city or large campus.
Option B: WAN stands for Wide Area Network, which covers a very large geographical area, such as multiple cities or countries.
Option C: PAN stands for Personal Area Network, which covers a very small area, typically within a few meters, such as connecting devices like a smartphone and a smartwatch.
Option D: LAN stands for Local Area Network, which is the correct answer as it connects devices within a limited geographical area.

Mnemonic: LAN: Local Area Network

173. What is the name of a piece of hardware that is used to connect different devices together? This hardware is often made up of a number of wires.

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

Exam Relevance: IT Essentials, CompTIA A+

Difficulty: Easy

Concept notes: A network cable is a physical medium used to connect devices in a network, facilitating data transmission.

Common Mistakes: Students may confuse a network cable with a hub, which is a device that connects multiple network cables.

Explanations: A network cable is a piece of hardware that consists of multiple wires and is used to connect different devices together in a network. It is the physical medium that allows data to be transmitted between devices. The other options are incorrect because a protocol is a set of rules for communication, a server is a computer system that provides services to other computers, and a hub is a device that connects multiple network cables.

Option Analysis:

Option A: A protocol is a set of rules for communication, not a physical device.
Option B: A server is a computer system that provides services to other computers, not a physical connection medium.
Option C: A network cable is a physical medium used to connect devices in a network, facilitating data transmission.
Option D: A hub is a device that connects multiple network cables, not the cable itself.

174. AH Protocol provides source authentication and data integrity, but not

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

Exam Relevance: CISSP, CCNA Security, CompTIA Security+

Difficulty: Moderate

Concept notes: The AH (Authentication Header) protocol provides source authentication and data integrity but does not provide privacy.

Common Mistakes: Students may confuse AH with ESP (Encapsulating Security Payload), which provides both integrity and privacy.

Explanations: The AH protocol ensures that the data has not been tampered with and verifies the source of the data. However, it does not encrypt the data, meaning it does not provide privacy. Therefore, the correct answer is privacy.

Option Analysis:

Option A: Integrity is provided by AH, so this is incorrect.
Option B: Privacy is not provided by AH, making this the correct answer.
Option C: Nonrepudiation is not directly provided by AH, but it can be inferred from the authentication, so this is incorrect.
Option D: Since integrity is provided, this option is incorrect.

175. What is the port number for (HTTP Secure) HTTPS?

Correct Answer: Correct answer is: (B) 443.

Exam Relevance: CISSP, CompTIA Security+, Network+

Difficulty: Easy

Concept notes: The port number 443 is designated for HTTPS, which is the secure version of HTTP used for secure web browsing.

Common Mistakes: Students may confuse the port number for HTTPS with other common port numbers, such as 80 for HTTP or 445 for SMB.

Explanations: HTTPS uses port 443 to ensure secure communication over the internet. This port number is standardized and widely recognized for secure web traffic.

Option Analysis:

Option A: Port 43 is not used for HTTPS. It is used for the Simple Mail Transfer Protocol (SMTP) status service.
Option B: Port 443 is the correct port number for HTTPS, ensuring secure web communication.
Option C: Port 445 is used for Server Message Block (SMB) and is not related to HTTPS.
Option D: Port 444 is not a standard port for HTTPS or any widely recognized protocol.

176. Which switch is a multistage switch with micro switches at each stage that route the packets based on the output port represented as a binary string?

Correct Answer: Correct answer is: (A) Banyan switch.

Exam Relevance: Computer Networks, Data Communications, Network Engineering

Difficulty: Moderate

Concept notes: A Banyan switch is a type of multistage switch that uses micro switches at each stage to route packets based on the output port represented as a binary string.

Common Mistakes: Students may confuse the Banyan switch with a Crossbar switch, which does not use a multistage architecture.

Explanations: A Banyan switch is a multistage switch that uses micro switches at each stage to route packets. The routing is based on the binary representation of the output port. This makes it distinct from a Crossbar switch, which does not use a multistage architecture. The Banyan switch is designed to efficiently route packets through multiple stages, making it a suitable choice for high-speed switching applications.

Option Analysis:

Option A: Correct. A Banyan switch is a multistage switch with micro switches at each stage that route packets based on the binary representation of the output port.
Option B: Incorrect. A Crossbar switch does not use a multistage architecture and instead directly connects inputs to outputs.
Option C: Incorrect. A Multistage crossbar is a general term and does not specifically describe the routing mechanism based on binary strings.
Option D: Incorrect. A Packet switch is a general term for a switch that routes packets, but it does not specify the multistage architecture or binary routing mechanism.

Mnemonic: Banyan Binary Bounce

177. You type debug ip rip on your router console and see that 172.16.10.0 is being advertised to you with a metric of 16. What does this mean?

Correct Answer: Correct answer is: (C) The route is inaccessible.

Exam Relevance: CCNA, Network+

Difficulty: Moderate

Concept notes: In RIP (Routing Information Protocol), a metric of 16 indicates that the route is unreachable or inaccessible.

Common Mistakes: Students may confuse the metric value with the number of hops or delay, which are incorrect interpretations in this context.

Explanations: In RIP, a metric of 16 is used to indicate that a route is unreachable. This is a special value that signifies the route is inaccessible, not that it is 16 hops away or has a specific delay. The metric value of 16 is a way to signal that the route should not be used.

Option Analysis:

Option A: Incorrect. A metric of 16 in RIP does not indicate the number of hops.
Option B: Incorrect. A metric of 16 in RIP does not indicate delay.
Option C: Correct. A metric of 16 in RIP indicates the route is inaccessible.
Option D: Incorrect. A metric of 16 in RIP does not indicate message queue rate.

Mnemonic: RIP 16, Route Void

178. Router forwards received packet through only one of its interfaces in

Correct Answer: Correct answer is: (C) Unicast delivery.

Exam Relevance: CCNA, CISSP, CompTIA Network+

Difficulty: Moderate

Concept notes: Unicast delivery involves sending a packet to a single, specific destination address.

Common Mistakes: Students may confuse unicast with broadcast or multicast, where packets are sent to multiple destinations.

Explanations: In unicast delivery, a router forwards a received packet through only one of its interfaces to reach the specific destination address. This is in contrast to broadcast and multicast, where packets are sent to multiple interfaces or addresses.

Option Analysis:

Option A: Multicast delivery involves sending packets to multiple specific destinations, not just one interface.
Option B: Broadcast delivery involves sending packets to all interfaces, not just one.
Option C: Unicast delivery involves sending packets to a single specific destination, which means the packet is forwarded through only one interface.
Option D: Omnicast is not a standard term in networking and does not apply here.

179. In the earlier ARPA NET each node of network consisted

Correct Answer: Correct answer is: (C) IMP & a host.

Exam Relevance: Computer Networks, Data Communications, Network Fundamentals

Difficulty: Moderate

Concept notes: In the early ARPANET, each node consisted of an Interface Message Processor (IMP) and a host.

Common Mistakes: Students may confuse the roles of different components in the ARPANET, such as TIP (Terminal Interface Processor) or BBN (Bolt, Beranek and Newman), which were also involved but not the primary components of each node.

Explanations: The Interface Message Processor (IMP) was a key component in the early ARPANET. It served as a router, connecting the host computers to the network. Each node in the ARPANET included an IMP and a host, where the host was the computer system that communicated with other hosts over the network. The IMP handled the packet switching and network communication, while the host performed the actual data processing and user interaction.

Option Analysis:

Option A: TIP (Terminal Interface Processor) was used to connect terminals to the network, not as a primary node component.
Option B: BBN (Bolt, Beranek and Newman) was the company that built the IMPs, not a component of each node.
Option C: IMP (Interface Message Processor) and a host were the primary components of each node in the ARPANET.
Option D: SAP (Service Access Point) is not a component of the early ARPANET nodes.

Mnemonic: IMP-H: Imagine a network where each node has an IMP and a Host.

180. ..... is a digital version of AMPS.

Correct Answer: Correct answer is: (B) D-AMPS.

Exam Relevance: IEEE, ECE, Telecommunications Engineering exams

Difficulty: Easy

Concept notes: D-AMPS stands for Digital Advanced Mobile Phone System, which is a digital version of the original AMPS (Advanced Mobile Phone System).

Common Mistakes: Students may confuse D-AMPS with GSM or IS-95, which are other digital mobile communication standards.

Explanations: D-AMPS is a digital version of AMPS, which was the first widely used cellular system in the United States. D-AMPS was developed to provide digital voice and data services, improving upon the analog AMPS system. GSM and IS-95 are different digital mobile communication standards and not direct digital versions of AMPS.

Option Analysis:

Option A: GSM is a different digital mobile communication standard and not a direct digital version of AMPS.
Option B: D-AMPS is the correct digital version of AMPS.
Option C: IS-95 is another digital mobile communication standard and not a direct digital version of AMPS.
Option D: This option is incorrect as D-AMPS is the correct answer.

Mnemonic: D-AMPS: Digital AMPS

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Computer networking MCQ - Set 18

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