What is an example of unicast communication?

Streaming video to multiple users

What is the primary purpose of protocols in networking?

Ensure accurate data transmission

What is the full form of TCP?

Transmission Communication Protocol

Transfer Communication Protocol

What does the bandwidth of a link represent?

The maximum amount of data that can be transmitted over the link in a given period

The time it takes for data to travel from the source to the destination

The actual amount of data currently being transmitted

The number of devices that can use the link simultaneously

Which of the following is an example of analog transmission?

Radio or television broadcasting

Data transfer between computers

In simplex mode, data flows:

In both directions simultaneously

In both directions, but only one at a time

Randomly based on the device configuration

What is the key feature of synchronous transmission?

Data is sent as large blocks, synchronized by a clock

Data is sent one character at a time

Timing is managed using start and stop bits

Data transfer is intermittent and unstructured

What is a disadvantage of a bus topology?

Performance degrades as more devices are added

Requires more cabling than other topologies

Failure of a single device disrupts the network

Difficult to manage and troubleshoot

What is a key disadvantage of asynchronous transmission?

Slower transmission due to start/stop bits

Requires expensive synchronization hardware

Unsuitable for low-speed communication

What is the primary feature of guided media?

Signals are directed and contained within a medium

Signals are broadcast in all directions

Requires no physical connection between devices

Uses free space for signal transmission

What is the key purpose of switching in networks?

To replace all physical connections.

What is the main characteristic of circuit switching?

Packets are transmitted independently.

Congestion occurs during data transmission.

Bandwidth is shared dynamically.

What is the main advantage of packet switching?

Efficient bandwidth utilization.

What does a protocol define in communication?

The rules for effective communication.

The hardware used for communication.

The storage methods for communication data.

How does protocol layering help in communication?

It divides complex communication into layers.

It simplifies communication by reducing layers.

It eliminates the need for encryption.

It uses one protocol for all tasks.

What is the advantage of modularity in protocol layering?

Changes to one layer do not affect others.

Flexibility in choosing one protocol.

Layers have similar functionalities.

Layers interact directly with each other.

What is the role of the transport layer in the TCP/IP protocol suite?

Ensures reliable data delivery across the network.

Provides error control in physical transmission.

Encapsulates messages into segments for applications.

Which of the following is a characteristic of the network layer in the TCP/IP protocol suite?

Provides routing and addressing.

Manages end-to-end communication.

Provides user applications with services.

What does the term “logical connections” in protocol layering refer to?

Imaginary connections between layers at both communication sites.

Physical connections between devices.

Hardwired connections through routers.

Direct links between application processes.

Which of the following is a responsibility of the data-link layer in the TCP/IP protocol suite?

Moving frames across links between devices.

Routing packets to the destination.

Ensuring end-to-end delivery of messages.

What does the transport layer provide in terms of data transmission?

Flow control, error control, and congestion control.

Encryption and decryption services.

Routing and addressing of data.

DCCN-Chapt-1

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Computers

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MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the definition of data communication?

Exchange of data between devices via a medium

Exchange of voice signals only

Communication between people

Sharing of hardware resources

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is an example of remote communication?

Face-to-face interaction

Writing a note

Speaking in person

Video call over the Internet

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which characteristic ensures data must reach the correct destination?

Timeliness

Delivery

Accuracy

Jitter

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What does jitter refer to in data communication?

Speed of data transmission

Loss of data during transmission

Variation in packet arrival time

Size of transmitted data

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What type of communication does a keyboard to monitor represent?

Full-Duplex

Broadcast

Simplex

Half-Duplex

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

In which communication mode do devices take turns transmitting and receiving?

Full-Duplex

Half-Duplex

Simplex

Broadcast

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What was the first network developed by ARPA in 1969?

TCP/IP

ARPANET

Internet

Ethernet

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DCCN-Chapt-1

What is the definition of data communication?

What is an example of remote communication?

Which characteristic ensures data must reach the correct destination?

What does jitter refer to in data communication?

What type of communication does a keyboard to monitor represent?

In which communication mode do devices take turns transmitting and receiving?

What was the first network developed by ARPA in 1969?

What protocol is used for transferring files between devices?

What does DNS stand for?

What is an example of unicast communication?

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