Quiz transport layer

Each request is assigned source and destination port numbers.

How does a networked server manage requests from multiple clients for different services? Each request is assigned source and destination port numbers. The server uses IP addresses to identify different services. Each request is tracked through the physical address of the client. The server sends all requests through a default gateway.

The source decreases the amount of data that it transmits before it receives an acknowledgement from the destination.

Network congestion has resulted in the source learning of the loss of TCP segments that were sent to the destination. What is one way that the TCP protocol addresses this? The source decreases the amount of data that it transmits before it receives an acknowledgement from the destination. The source decreases the window size to decrease the rate of transmission from the destination. The destination decreases the window size. The destination sends fewer acknowledgement messages in order to conserve bandwidth.

TCP source port numbers

Refer to the exhibit. What do the highlighted (in white) numbers represent? CP destination IP addresses TCP source port numbers TCP destination port numbers TCP source IP addresses

tracking individual conversations identifying the applications segmenting data and reassembling segments

What are the responsibilities of transport layer protocols? (Choose three) providing network access determining the best path to forward a packet tracking individual conversations identifying the applications translating private IP addresses to public IP addresses verifying end to end connectivity segmenting data and reassembling segments

The part of the FTP message that was lost is re-sent.

What happens if part of an FTP message is not delivered to the destination? The entire FTP message is re-sent. The message is lost because FTP does not use a reliable delivery method. The FTP source host sends a query to the destination host. The part of the FTP message that was lost is re-sent.

the combination of a source IP address and port number or a destination IP address and port numbe

What is a socket? the combination of the source and destination sequence numbers and port numbers the combination of a source IP address and port number or a destination IP address and port number the combination of the source and destination sequence and acknowledgment numbers the combination of the source and destination IP address and source and destination Ethernet address

sliding window

What is the TCP mechanism used in congestion avoidance? two-way handshake three-way handshake sliding window socket pair

0 to 65535

What is the complete range of TCP and UDP ports? 0 to 65535 0 to 49151 0 to 1023 0 to 255

0 to 1023

What is the complete range of TCP and UDP well-known ports? 0 to 1023 0 to 255 1024 - 49151 256 - 1023

to ID the software that the returning data is for

What is the purpose of using a source port number in a TCP or UDP communication? to notify the remote device that the conversation is over to assemble the segments that arrived out of order to ID the software that the returning data is for to inquire for a nonreceived segment

applications that are sensitive to delay

What type of applications are best suited for using UDP? applications that are sensitive to delay applications that need reliable delivery applications that are sensitive to packet loss applications that require retransmission of lost segments

The client randomly selects a source port number.

Which action is performed by a client when establishing communication with a server via the use of UDP at the transport layer? The client randomly selects a source port number. The client sends a synchronization segment to begin the session. The client sends an SYN to the server to start the 3-way handshake. The client sets the window size for the session.

192.168.1.1:80

Which number or set of numbers represents a socket? 192.168.1.1:80 10.1.1.15 21 01-23-45-67-89-AB

UDP TCP

Which of the following protocols are examples of TCP/IP transport layer protocols? (Choose two) IP UDP Ethernet HTTP TCP SMTP

TCP 3-way handshake

Which transport layer feature is used to guarantee session establishment? UDP ACK flag UDP sequence number TCP port number TCP 3-way handshake

ACK SYN

Which two flags in the TCP header are used in a TCP three-way handshake to establish connectivity between two network devices? (Choose two.) RST URG FIN PSH ACK SYN

retransmitting any unacknowledged data acknowledging received data

Which two operations are provided by TCP but not by UDP? (Choose two.) reconstructing data in the order received retransmitting any unacknowledged data identifying the applications tracking individual conversations acknowledging received data

DNS VoIP

Which two services or protocols use the preferred UDP protocol for fast transmission and low overhead? (Choose two) HTTP FTP DNS POP3 VoIP