Computer networking MCQ

1631. If a company develops a web-browser which does not adhere to the standard for requesting and recieving HTML what might be a consequence?

Correct Answer: Correct answer is: (C) The web browser might not work optimally, or not work at all.

Exam Relevance: CISSP, CompTIA Security+, Network+

Difficulty: Moderate

Concept notes: Web browsers must adhere to established standards for requesting and receiving HTML to ensure compatibility and proper functionality.

Common Mistakes: Students might think that non-adherence to standards would break the entire internet, which is an overstatement.

Explanations: Web browsers rely on standards such as HTTP for requesting and receiving HTML content. If a browser does not adhere to these standards, it may not be able to properly interpret and render web pages. This can result in suboptimal performance or complete failure to display content correctly. However, this issue is specific to the non-compliant browser and does not affect the entire internet.

Option Analysis:

Option A: This option is incorrect because the entire internet would not be affected by a single non-compliant browser.
Option B: This option is partially correct but too specific. While the browser might not render HTML and XML files correctly, the issue is broader and can affect overall functionality.
Option C: This option is correct as it accurately describes the potential consequences of a browser not adhering to standards, including suboptimal performance or complete failure.

1632. This device on the computer allows the computer to connect to the Internet using a fibre optic cable.

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

Exam Relevance: CCNA, CompTIA Network+, A+ Certification

Difficulty: Easy

Concept notes: A network interface card (NIC) is a hardware component that allows a computer to connect to a network, including the Internet, using various types of cables, including fiber optic cables.

Common Mistakes: Students may confuse the network interface card with a router or hub, which are also network devices but serve different functions.

Explanations: The network interface card (NIC) is the correct answer because it is the device that physically connects a computer to a network, such as the Internet, using a fiber optic cable. The NIC translates data from the computer into a format that can be transmitted over the network and vice versa.

Option Analysis:

Option A: A hub is a network device that connects multiple devices together but does not directly connect a computer to the Internet.
Option B: A fiber optic cable is the medium used to transmit data but is not a device that connects a computer to the Internet.
Option C: A network interface card (NIC) is the correct device that allows a computer to connect to the Internet using a fiber optic cable.
Option D: A router is a network device that directs data traffic between networks but does not directly connect a computer to the Internet.

Mnemonic: NIC connects, NIC transmits.

1633. PAN is known asa

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

Exam Relevance: CCNA, CISSP, CompTIA Network+

Difficulty: Easy

Concept notes: PAN stands for Personal Area Network, which is a type of network used for communication among devices such as computers, telephones, tablets, and personal digital assistants.

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

Explanations: PAN is a network for interconnecting devices centered around an individual's workspace. It is designed to interconnect and allow the exchange of data between devices such as computers, telephones, tablets, and personal digital assistants. The term "Personal network" accurately describes this type of network, making option D the correct answer.

Option Analysis:

Option A: Public network is incorrect as it refers to a network accessible to the general public, not a personal workspace.
Option B: Home network is incorrect as it refers to a network within a home, not specifically centered around an individual's devices.
Option C: Bluetooth network is incorrect as it is a specific type of wireless technology used within a PAN, not the network itself.
Option D: Personal network is correct as it accurately describes a network for interconnecting devices centered around an individual's workspace.

Mnemonic: PAN: Personal Area Network

1634. The Internet is like a massive network of routers.

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

Exam Relevance: Computer Networks, CCNA, CISSP

Difficulty: Easy

Concept notes: The Internet is a global network of interconnected devices and networks, primarily connected through routers.

Common Mistakes: Students might think the Internet is just a collection of websites and not understand the underlying network infrastructure.

Explanations: The Internet is fundamentally a network of routers that route data packets between different networks. Routers are the key devices that connect various networks and ensure data is transmitted efficiently across the Internet. Therefore, the statement that the Internet is like a massive network of routers is accurate.

Option Analysis:

Option A: Correct, as the Internet is indeed a network of routers.
Option B: Incorrect, as it contradicts the fundamental structure of the Internet.

1635. What is the minimum number of computers needed to create a network?

Correct Answer: Correct answer is: (B) 2.

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

Difficulty: Easy

Concept notes: A network is defined as a group of computers or devices connected together to share resources and information. The minimum requirement for a network is at least two devices that can communicate with each other.

Common Mistakes: Students may mistakenly believe that a single computer can form a network by itself, but a network requires at least two devices to communicate.

Explanations: A network requires at least two computers to communicate and share resources. A single computer cannot form a network as there is no other device to connect to or share information with.

Option Analysis:

Option A: A single computer cannot form a network as it lacks another device to communicate with.
Option B: Two computers can form the minimum network by connecting and sharing resources.
Option C: While three computers can form a network, it is not the minimum requirement.
Option D: Four computers can also form a network, but it is not the minimum requirement.

Mnemonic: Two to Tango

1636. Which email protocol allows an email client to read mail stored on the mail server?

Correct Answer: Correct answer is: (A) IMAP4.

Exam Relevance: CISSP, CompTIA Network+, CCNA

Difficulty: Moderate

Concept notes: IMAP4 (Internet Message Access Protocol version 4) allows email clients to access and manipulate email messages on a remote server. This protocol supports multiple clients and maintains synchronization between the server and the client.

Common Mistakes: Students often confuse IMAP4 with POP3, which downloads emails to the client and typically deletes them from the server.

Explanations: IMAP4 allows an email client to read mail stored on the mail server without downloading the messages to the client. This means that the email messages remain on the server, and multiple clients can access the same messages. This protocol is designed for situations where users access their email from multiple devices and need to keep their email synchronized across all devices.

Option Analysis:

Option A: IMAP4 is the correct answer as it allows email clients to read mail stored on the mail server.
Option B: SMTP (Simple Mail Transfer Protocol) is used for sending emails, not for reading them.
Option C: TCP (Transmission Control Protocol) is a transport layer protocol and not an email protocol.
Option D: POP3 (Post Office Protocol version 3) downloads emails to the client and typically deletes them from the server, which does not allow reading mail stored on the server.

Mnemonic: IMAP4: "In Mail Access, Protocols 4"

1637. Which of the following are wireless network types

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

Exam Relevance: IT Essentials, CompTIA Network+, CCNA

Difficulty: Easy

Concept notes: WiFi is a wireless network technology that allows devices to connect to the internet or communicate with each other without the need for physical cables.

Common Mistakes: Students may confuse Ethernet with WiFi, as both are used for networking, but Ethernet is a wired technology.

Explanations: WiFi is a wireless network type that enables devices to connect to the internet or communicate with each other without the need for physical cables. It operates using radio waves to transmit data between devices and access points. Bluetooth and AirDrop are also wireless technologies, but they are not classified as network types in the same way WiFi is.

Option Analysis:

Option A: Ethernet is a wired network technology, not wireless.
Option B: WiFi is a wireless network technology, making it the correct answer.
Option C: Bluetooth is a wireless technology but not a network type like WiFi.
Option D: AirDrop is a wireless file transfer technology, not a network type.

1638. Specifies the format and addressing scheme of the packets

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

Exam Relevance: CCNA, CISSP, CompTIA Network+

Difficulty: Moderate

Concept notes: IP (Internet Protocol) is responsible for defining the format and addressing scheme of packets used in network communication.

Common Mistakes: Students may confuse IP with TCP, which is responsible for ensuring reliable data transmission, not packet formatting and addressing.

Explanations: IP is the protocol that specifies the format of packets and the addressing scheme used to route packets across networks. It ensures that packets are addressed correctly and can be delivered to the intended destination. TCP, on the other hand, is responsible for ensuring that data is transmitted reliably and in the correct order, but it does not define the packet format or addressing scheme.

Option Analysis:

Option A: TCP is responsible for reliable data transmission, not packet format and addressing.
Option B: TCP/IP is a suite of protocols, but IP specifically handles packet format and addressing.
Option C: IP defines the format and addressing scheme of packets.
Option D: ISPs (Internet Service Providers) provide internet access but do not define packet formats or addressing schemes.

Mnemonic: IP: Internet Protocol, Packets' Passport

1639. 18.The computers in Peter's office building are linked so that staff can share files and printers. This type of network is known as .

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

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

Difficulty: Easy

Concept notes: A LAN (Local Area Network) is a computer network that interconnects computers within a limited area such as a residence, school, or office building.

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

Explanations: The computers in Peter's office building are linked so that staff can share files and printers. This type of network is known as a LAN because it connects devices within a limited area, such as an office building, allowing for resource sharing and communication.

Option Analysis:

Option A: WAN (Wide Area Network) covers a large geographical area, such as cities or countries, which is not applicable to an office building.
Option B: MAN (Metropolitan Area Network) covers a larger area than a LAN but smaller than a WAN, typically a city or large campus, which is not applicable to an office building.
Option C: PAN (Personal Area Network) is used for communication between devices in a very small area, such as a single person's workspace, which is not applicable to an office building.
Option D: LAN (Local Area Network) is the correct choice as it connects devices within a limited area, such as an office building, allowing for resource sharing and communication.

Mnemonic: LAN: Local Area Network, Limited Area Network

1640. Using MSTP protocol it is possible to

Correct Answer: Correct answer is: (A) Increase number of spanning trees.

Exam Relevance: CCNA, CCNP, Network+

Difficulty: Moderate

Concept notes: MSTP (Multiple Spanning Tree Protocol) allows for the creation of multiple spanning trees within a network, each serving a different VLAN or set of VLANs.

Common Mistakes: Students may mistakenly believe that MSTP only optimizes a single spanning tree, rather than creating multiple trees.

Explanations: MSTP is an extension of the Spanning Tree Protocol (STP) that allows for the creation of multiple spanning trees within a network. Each spanning tree can be associated with a different VLAN or set of VLANs. This capability increases the number of spanning trees, thereby improving network efficiency and load distribution. By creating multiple spanning trees, MSTP can provide better utilization of network resources and enhance network resilience.

Option Analysis:

Option A: Correct. MSTP can increase the number of spanning trees by creating multiple instances, each serving a different VLAN or set of VLANs.
Option B: Incorrect. MSTP does not decrease the number of spanning trees; it increases them.
Option C: Incorrect. MSTP does have an influence on the number of spanning trees by allowing the creation of multiple instances.

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Computer networking MCQ - Set 164

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