Which statement about broadcast transmission is true?

It sends data to all devices on a network.

It sends data to a specific group of devices.

It requires a unique address for each device.

It sends data to a single device.

Which of the following best describes multicast transmission?

Data is sent from one source to multiple specific devices.

Data is sent from one source to a specific device only.

Data is sent from one source to all devices on the network.

Data is sent in a one-way direction only.

What is the primary function of a Network Interface Card (NIC)?

To connect devices to the network

To store data temporarily before transmission

To encrypt data during transmission

To manage data traffic between multiple networks

What happens in half-duplex communication?

Data can be sent and received, but not at the same time.

Data can be sent and received simultaneously.

Data can only be sent in one direction.

What does a MAC address represent in a network?

A unique hardware address assigned to a NIC

A software protocol for data transmission

What is the main difference between a hub and a switch in a network?

Switches send data to specific devices, while Hubs send to all devices.

Switches operate at Layer 1, while hubs operate at Layer 2.

Switches manage data traffic more efficiently than hubs.

Hubs can connect multiple networks, while switches cannot.

What is the primary role of a managed switch in a network?

To provide advanced features like traffic management and monitoring

To connect devices without any configuration

To repeat signals to all connected devices

To serve as a firewall for network security

Which of the following is a characteristic of a switch?

It reduces collisions by sending data only to the intended recipient.

It operates at Layer 1 of the OSI model.

It sends data to all ports regardless of the destination.

It cannot connect multiple devices.

Which of the following best describes the function of a router?

It connects multiple networks and routes data between them.

It amplifies signals to extend network range.

It connects devices within a single network.

It stores data packets for later transmission.

Which of the following statements about routers is accurate?

Routers connect multiple networks and manage data transmission.

Routers do not use routing tables.

Routers forward all types of data without filtering.

Routers are only hardware devices.

What is the significance of a routing table in a router?

It helps the router make decisions about data forwarding.

It encrypts data for secure transmission.

It lists all devices connected to the router.

It stores data packets temporarily.

What is the primary characteristic of broadcast transmission in a network?

It sends data to all devices on a network.

It sends data to a specific device only.

It requires a unique address for each device.

It sends data to a specific group of devices.

How do nodes in a CSMA/CD network determine when to retransmit after a collision?

They set a random timer before retransmitting

They wait for a signal from the router

Which method is used by wireless networks to manage access to the medium?

Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA)

Time Division Multiple Access (TDMA)

Carrier Sense Multiple Access with Collision Detection (CSMA/CD)

In a CSMA/CD network, what occurs after a collision is detected?

The nodes wait for a fixed time before retransmitting

The data is automatically resent

Which of the following statements about CSMA/CD is true?

It is the most common media access control for wired networks

It does not require nodes to listen before transmitting

It allows multiple devices to use the medium at the same time

It is used exclusively in wireless networks

What is the primary function of a jam signal in CSMA/CA?

To avoid collisions by notifying other nodes

To initiate a data transmission

To indicate a successful transmission

Which statement accurately reflects the operation of CSMA/CA?

Nodes send a jam signal to prevent collisions

Nodes can detect collisions and retransmit immediately

Nodes use a token to control access

Nodes transmit data without checking the medium

What is a key characteristic of CSMA/CA in wireless networks?

It avoids collisions by sending a jam signal

It allows nodes to detect collisions

It requires a central controller

It uses time slots for transmission

What is one advantage of using Power over Ethernet (PoE)?

It reduces the need for multiple power outlets

It enhances wireless signal strength

It increases data transmission speed

It eliminates the need for network cables

What is a common application of Power over Ethernet (PoE)?

Powering Voice over IP (VoIP) devices

Connecting computers to the internet

Providing wireless internet access

What is the primary method used by CSMA/CD to manage data transmission in wired networks?

Nodes listen for other transmissions before sending data

Nodes transmit data without checking the medium

Nodes send a jam signal to prevent collisions

Nodes use a token to control access

What occurs in a CSMA/CD network when two nodes transmit simultaneously?

A collision occurs and both transmissions are lost

The nodes automatically adjust their transmission rates

One node's data is prioritized over the other

The data is successfully transmitted

In a scenario where multiple devices are connected to a wired network, which access method is most likely being used?

Frequency Division Multiple Access

Which of the following best describes the role of nodes in a CSMA/CD network?

They must listen for other transmissions before sending data

They are not allowed to transmit simultaneously

They can transmit data at any time

What do nodes do in a CSMA/CD network before transmitting data?

They listen to see if anyone is transmitting

In basic anding, what happens to the bits in the IP address that correspond to a zero in the subnet mask?

They are part of the host address

They are included in the network address

What is the primary purpose of a subnet mask in networking?

To determine which part of an IP address is the network address

To assign a unique identifier to each device

To encrypt data transmitted over the network

To identify the physical location of a device

In the context of basic anding, what does the presence of a 255 in the subnet mask signify?

The corresponding IP address octet is part of the network address

The corresponding IP address octet is part of the host address

The octet is irrelevant to the network address

The octet must be ignored in calculations

What is the primary function of the subnet mask in relation to an IP address?

To identify which part of the IP address is the network address and which part is the host address

To convert the IP address to a hexadecimal format

To encrypt the data being sent over the network

To assign a static IP address to a device

When performing basic anding, what does an octet value of 0 in the subnet mask indicate about the corresponding octet in the IP address?

It must be changed to a different value

It is part of the network address

It is irrelevant to the network address

Which of the following statements about default subnet masks is true?

They consist of octets that are either all ones or all zeros

They can have both ones and zeros in the same octet

They are always written in binary format

They are used to identify the host address only

What is the primary purpose of the basic anding process in networking?

To determine the network address from an IP address and subnet mask

To assign dynamic IP addresses to devices

To convert IP addresses into hexadecimal format

To encrypt data transmitted over the network

What does the process of anding involve?

Comparing the IP address to the subnet mask

Calculating the speed of the network

In the process of basic anding, what does an octet value of 255 in the subnet mask indicate?

The corresponding IP address octet is part of the network address

The corresponding IP address octet is part of the host address

The octet must be ignored in calculations

The octet is irrelevant to the network address

Which of the following best describes the structure of a subnet mask?

A 32-bit number written in dotted decimal form

A 16-bit number written in binary

Which of the following is a characteristic of subnet masks?

They are 32-bit numbers written in dotted decimal form

They are only used in IPv6 addressing

They are always written in binary

How does the subnet mask affect the identification of network and host addresses?

It indicates which bits in the IP address belong to the network address

It assigns IP addresses dynamically

It determines the speed of the network

It encrypts the data being transmitted

MIDTERM EXAM WITH ANSWER - PRACTICE TEST

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