Why TCP provides reliable delivery in Computer Networks - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the sentence to explain how TCP ensures data is received correctly.

Computer Networks

TCP uses [1] to confirm that data packets have arrived safely.

Drag options to blanks, or click blank then click option'

Aacknowledgments

Bchecksums

Cbroadcasting

Dencryption

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing acknowledgments with encryption or checksums.

TCP uses acknowledgments to confirm that the receiver has successfully received data packets. This helps ensure reliable delivery.

2fill in blank

medium

Complete the sentence to describe how TCP handles lost packets.

Computer Networks

If a packet is lost, TCP will [1] the packet to ensure it reaches the destination.

Drag options to blanks, or click blank then click option'

Aignore

Bretransmit

Ccompress

Ddelay

Attempts:

3 left

💡 Hint

Common Mistakes

Thinking TCP ignores lost packets or delays them instead.

TCP retransmits lost packets to make sure all data arrives correctly and in order.

3fill in blank

hard

Fix the error in the explanation about TCP's ordering of packets.

Computer Networks

TCP ensures data arrives in order by using [1] numbers for each packet.

Drag options to blanks, or click blank then click option'

AIP

Bport

Csequence

Dchecksum

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing sequence numbers with port numbers or IP addresses.

TCP assigns sequence numbers to packets so the receiver can reorder them correctly if they arrive out of order.

4fill in blank

hard

Fill both blanks to complete the explanation of TCP's flow control.

Computer Networks

TCP uses a [1] window to control the amount of data sent before waiting for an [2].

Drag options to blanks, or click blank then click option'

Asliding

Backnowledgment

Cfixed

Derror

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'fixed' window or confusing acknowledgment with error.

The sliding window controls how much data can be sent before waiting for an acknowledgment, helping TCP manage flow control.

5fill in blank

hard

Fill all three blanks to explain how TCP detects errors and recovers.

Computer Networks

TCP uses [1] to detect errors, [2] to confirm receipt, and [3] to resend lost data.

Drag options to blanks, or click blank then click option'

Achecksums

Backnowledgments

Cretransmission

Dencryption

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing encryption with error detection or retransmission.

TCP uses checksums to detect errors, acknowledgments to confirm receipt, and retransmission to resend lost data, ensuring reliable delivery.