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Unit Viii Information And Communication Technology (Ict)
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Network Devices – Quiz 8
Network Devices Quiz 8 (10 MCQs)
This set of multiple-choice questions evaluates understanding of network devices, network communication, and connectivity. Concepts covered include Ethernet functionality, Internet access, the OSI model, and the roles of transmitters, receivers, and repeaters. The questions also assess knowledge of network cable specifications, signal amplification, and interference, as well as the functions of servers and routers in managing shared information and data routing.
Quiz Instructions
Select an option to see the correct answer instantly.
1.
You can use this port for networking and connecting to the Internet.
A) USB Port.
B) Serial Port.
C) Ethernet Port.
D) Power Button.
Show Answer
Correct Answer:
Correct answer is: (C) Ethernet Port.
Exam Relevance:
CCNA, CompTIA Network+, CIW Network Specialist
Difficulty:
Easy
Concept notes:
An Ethernet port is used for connecting devices to a network and the Internet.
Common Mistakes:
A common mistake is to confuse the Ethernet port with other ports like USB or serial ports, which have different functions.
Explanations:
The Ethernet port is specifically designed for networking and connecting to the Internet. It allows devices to communicate over a network using Ethernet cables, which are commonly used in wired networks.
Option Analysis:
Option A:
USB Port is used for connecting peripheral devices like keyboards, mice, and external storage, not for networking.
Option B:
Serial Port is used for connecting older devices and peripherals, not for modern networking.
Option C:
Ethernet Port is used for networking and connecting to the Internet.
Option D:
Power Button is used to turn the device on or off, not for networking.
2.
Regarding unshielded twisted pair cables we CANNOT state:
A) They are classified in categories, from 1 to 7.
B) They have interference.
C) They cannot be used on Gigabit Ethernet networks.
D) They have no interference.
Show Answer
Correct Answer:
Correct answer is: (D) They have no interference.
Exam Relevance:
CompTIA Network+, CCNA, Network+ Security
Difficulty:
Moderate
Concept notes:
Unshielded twisted pair (UTP) cables are known to be susceptible to electromagnetic interference (EMI) and radio frequency interference (RFI). This is because they lack the shielding that would otherwise protect the wires from external interference.
Common Mistakes:
A common misunderstanding is that UTP cables are completely immune to interference, which is incorrect. UTP cables do experience interference, but the twisting of the pairs helps to reduce it.
Explanations:
Unshielded twisted pair cables are not shielded, meaning they do not have a protective layer to shield them from external electromagnetic interference. Therefore, they can experience interference, making the statement "They have no interference" incorrect.
Option Analysis:
Option A:
UTP cables are indeed classified into categories, from 1 to 7, each with different specifications and performance levels.
Option B:
UTP cables can experience interference, particularly from electromagnetic and radio frequency sources.
Option C:
UTP cables can be used in Gigabit Ethernet networks, particularly with Category 5e and higher.
Option D:
UTP cables do experience interference, so this statement is incorrect.
3.
Which network device routes messages over 'like' networks?
Show Answer
Correct Answer:
Correct answer is: (A) Router.
Exam Relevance:
CCNA, Network+, CompTIA A+
Difficulty:
Easy
Concept notes:
A router is a network device that routes messages over similar (like) networks.
Common Mistakes:
A common misunderstanding is that a gateway is the device that routes messages over similar networks, but a gateway is used for routing between different types of networks.
Explanations:
A router is designed to route data packets between similar networks, ensuring efficient and effective communication within the same network type. This makes it the appropriate device for routing messages over 'like' networks.
Option Analysis:
Option A:
Router is the correct choice as it routes messages over similar networks.
Option B:
Gateway is incorrect because it is used for routing between different types of networks, not similar ones.
4.
This network device connects one LAN to another LAN that uses the same protocol.
A) Hub.
B) Switch.
C) Bridge.
D) Router.
Show Answer
Correct Answer:
Correct answer is: (C) Bridge.
Exam Relevance:
CCNA, CompTIA Network+, CIW Network Specialist
Difficulty:
Moderate
Concept notes:
A bridge is a network device that connects two LANs using the same protocol.
Common Mistakes:
A common misunderstanding is that a router is the correct answer, as it can also connect networks. However, a router is used to connect different networks, not necessarily the same protocol LANs.
Explanations:
A bridge is specifically designed to connect two LANs that use the same protocol. It operates at the data link layer (Layer 2) of the OSI model, filtering and forwarding frames based on MAC addresses. This makes it suitable for connecting two segments of the same LAN, improving network performance and reducing congestion.
Option Analysis:
Option A:
A hub is a simple device that broadcasts data to all connected devices, not specifically designed to connect two LANs.
Option B:
A switch is a more advanced device that forwards data to specific devices based on MAC addresses, but it is primarily used within a single LAN, not to connect two separate LANs.
Option C:
A bridge is the correct answer as it is designed to connect two LANs using the same protocol.
Option D:
A router is used to connect different networks, often using different protocols, and operates at the network layer (Layer 3) of the OSI model.
5.
Repeater works in which layer of the OSI model?
A) Physical layer.
B) Transport layer.
C) Data link layer.
D) None.
Show Answer
Correct Answer:
Correct answer is: (A) Physical layer.
Exam Relevance:
CCNA, CompTIA Network+, Network Fundamentals
Difficulty:
Very Easy
Concept notes:
A repeater is a network device that operates at the Physical layer of the OSI model. It amplifies and regenerates the signal to extend the length of a network segment.
Common Mistakes:
A common misunderstanding is that repeaters operate at higher layers, such as the Data Link layer, where devices like switches operate.
Explanations:
A repeater works at the Physical layer because it only amplifies and retransmits the signal without any processing or modification of the data. It does not perform any functions related to addressing, error detection, or data link management, which are handled at higher layers.
Option Analysis:
Option A:
Correct. Repeaters operate at the Physical layer.
Option B:
Incorrect. The Transport layer is responsible for end-to-end communication and does not involve signal amplification.
Option C:
Incorrect. The Data Link layer deals with addressing and error detection, not signal amplification.
Option D:
Incorrect. The correct layer is specified in the options.
6.
What role does a server play in a network?
A) It connects users to the Internet.
B) It serves data to multiple computers and devices.
C) It protects against computer viruses.
D) It is a type of web browser.
Show Answer
Correct Answer:
Correct answer is: (B) It serves data to multiple computers and devices.
Exam Relevance:
CCNA, CompTIA Network+, CIW Network Specialist
Difficulty:
Moderate
Concept notes:
A server is a device or software that provides data and services to other devices or users in a network. It is a central component that manages and distributes resources to multiple clients.
Common Mistakes:
A common misunderstanding is that a server only connects users to the Internet, which is incorrect. While a server can facilitate Internet access, its primary role is to serve data and resources to multiple devices.
Explanations:
A server's primary function is to manage and distribute data and resources to multiple clients in a network. This includes tasks such as file sharing, database management, and web hosting. The server acts as a central hub, ensuring that data is efficiently and securely distributed to various devices connected to the network.
Option Analysis:
Option A:
This is incorrect because a server's main role is not to connect users to the Internet. That function is typically performed by a router or modem.
Option B:
This is correct because a server's primary function is to serve data to multiple computers and devices in a network.
Option C:
This is incorrect because protecting against computer viruses is typically the role of antivirus software, not a server.
Option D:
This is incorrect because a server is not a type of web browser; it is a device or software that provides data and services to clients.
7.
A specific computer where shared information resides is called
A) Server.
B) WAM.
C) LAN.
D) Spam.
Show Answer
Correct Answer:
Correct answer is: (A) Server.
Exam Relevance:
CCNA, CompTIA Network+, CIW Network Specialist
Difficulty:
Easy
Concept notes:
A server is a specific computer or system that stores and manages shared information and resources in a network.
Common Mistakes:
A common misunderstanding is that a server is just a regular computer, but it is specifically designed to handle and manage shared resources.
Explanations:
A server is a specific computer where shared information resides. It is designed to manage and distribute data, applications, and services to other computers (clients) in a network. This makes it the correct answer as it directly addresses the question about a specific computer where shared information is stored.
Option Analysis:
Option A:
Correct. A server is a specific computer designed to store and manage shared information.
Option B:
Incorrect. WAM is not a recognized term in this context and does not refer to a specific computer for shared information.
Option C:
Incorrect. LAN (Local Area Network) is a network type, not a specific computer where shared information resides.
Option D:
Incorrect. Spam refers to unsolicited messages, not a specific computer for shared information.
8.
David, Harper, and Evelyn are setting up a computer network for a school project. What is the function of the router they are using?
A) Connect different computer networks they have set up.
B) Protect the computer network of the project from cyber attacks.
C) Store, process, and deliver web pages to the users of the project network.
D) Manage data traffic on the project network.
Show Answer
Correct Answer:
Correct answer is: (A) Connect different computer networks they have set up.
Exam Relevance:
CCNA, Network+ Certification, CompTIA A+
Difficulty:
Moderate
Concept notes:
A router is a network device that connects multiple networks and routes data packets between them.
Common Mistakes:
A common misunderstanding is that a router primarily functions to protect a network from cyber attacks, which is a role more commonly associated with a firewall.
Explanations:
A router's primary function is to connect different computer networks and route data packets between them. This allows devices on different networks to communicate with each other. In the context of David, Harper, and Evelyn's project, the router will enable the different computer networks they have set up to communicate and share resources.
Option Analysis:
Option A:
Correct. A router connects different computer networks.
Option B:
Incorrect. Protecting the network from cyber attacks is the function of a firewall, not a router.
Option C:
Incorrect. Storing, processing, and delivering web pages is the function of a web server, not a router.
Option D:
Incorrect. Managing data traffic is a function of a switch, not a router.
9.
A device used to connect a computer to the internet, is called:
A) Modem.
B) URL.
C) IP Address.
D) None of above.
Show Answer
Correct Answer:
Correct answer is: (A) Modem.
Exam Relevance:
CCNA, CompTIA Network+, CIW Network Specialist
Difficulty:
Easy
Concept notes:
A modem is a device that connects a computer to the internet by converting digital signals to analog signals and vice versa.
Common Mistakes:
A common mistake is confusing a modem with other network devices like a router or a switch, or with terms like URL or IP address, which are not physical devices.
Explanations:
A modem is the correct answer because it is the device that enables a computer to connect to the internet by facilitating the conversion of digital data into a format that can be transmitted over telephone lines or other communication mediums.
Option Analysis:
Option A:
Correct. A modem is the device that connects a computer to the internet.
Option B:
Incorrect. URL (Uniform Resource Locator) is a web address, not a device.
Option C:
Incorrect. IP Address (Internet Protocol Address) is a numerical label assigned to devices on a network, not a device itself.
Option D:
Incorrect. The correct answer is provided in option A.
10.
A Transceiver is a combination of ..... and .....
A) Transmitter and Receiver.
B) Cell and Mobile Unit.
C) Cell and MTSO.
D) None of the above.
Show Answer
Correct Answer:
Correct answer is: (A) Transmitter and Receiver.
Exam Relevance:
Networking exams, Telecommunications exams, Computer Science exams
Difficulty:
Easy
Concept notes:
A transceiver is a device that combines both a transmitter and a receiver in a single unit.
Common Mistakes:
A common misunderstanding is that a transceiver might be related to cellular components like cells or mobile units, rather than the basic communication components of a transmitter and receiver.
Explanations:
A transceiver is a device that integrates both the functions of transmitting and receiving signals. This combination allows for bidirectional communication, which is essential in many network devices and communication systems.
Option Analysis:
Option A:
Correct. A transceiver is indeed a combination of a transmitter and a receiver.
Option B:
Incorrect. A cell and mobile unit are components of a cellular network, not a transceiver.
Option C:
Incorrect. A cell and MTSO (Mobile Telephone Switching Office) are parts of a cellular network infrastructure, not a transceiver.
Option D:
Incorrect. This option is not applicable as the correct answer is provided in Option A.
Mnemonic:
Transceiver = Transmitter + Receiver
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Frequently Asked Questions
What is the role of a router in a network?
A router directs data packets to their intended destinations within a network or between different networks, ensuring efficient data distribution and network connectivity.
How does electromagnetic interference affect network devices?
Electromagnetic interference can disrupt the transmission of data over network cables, leading to reduced performance or even data loss in network devices.
What is the significance of the Physical layer in the OSI model?
The Physical layer is responsible for the transmission and reception of raw bit streams over a physical medium, ensuring reliable data transfer at the hardware level.
How does a modem facilitate Internet connectivity?
A modem converts digital data from a computer into an analog signal for transmission over telephone lines, enabling Internet connectivity.
What is the function of a server in a network?
A server manages and provides shared information and resources to other devices on a network, supporting various services such as file sharing and application hosting.