lec10 network transport layer

Which action is performed by a client when establishing communication with a server via the use of UDP at the transport layer?

• The client sets the window size for the session.

• The client sends an ISN to the server to start the 3-way handshake.

• The client randomly selects a source port number.

• The client sends a synchronization segment to begin the session.

A client creates a packet to send to a server. The client is requesting HTTPS service. What number will be used as the destination port number in the sending packet?

• 443

• 161

• 110

• 80

A client creates a packet to send to a server. The client is requesting SMTP service. What number will be used as the destination port number in the sending packet?

• 25

• 443

• 161

• 110

A client creates a packet to send to a server. The client is requesting SNMP service. What number will be used as the destination port number in the sending packet?

• 161

• 443

• 110

• 80

A client creates a packet to send to a server. The client is requesting telnet service. What number will be used as the destination port number in the sending packet?

• 23

• 443

• 161

• 110

A client creates a packet to send to a server. The client is requesting POP3 service. What number will be used as the destination port number in the sending packet?

• 110

• 67

• 53

• 69

A client creates a packet to send to a server. The client is requesting HTTP service. What number will be used as the destination port number in the sending packet?

• 80

• 67

• 53

• 69

A client creates a packet to send to a server. The client is requesting SSH service. What number will be used as the destination port number in the sending packet?

• 22

• 69

• 67

• 80

A client creates a packet to send to a server. The client is requesting FTP service. What number will be used as the destination port number in the sending packet?

• 21

• 69

• 67

• 80

A client creates a packet to send to a server. The client is requesting TFTP service. What number will be used as the destination port number in the sending packet?

• 69

• 67

• 53

• 80