OSI Model - Transport Layer

UDP and TCP are both _______ layer protocols.

• data link

• Network

• Transport

• none of the above

Which protocols provide reliable data transfer

• UDP

• TCP

• Both TCP and UDP

• None of them

What does TCP stand for

• Trusted Control Protocol

• Transport Control Protocol

• Trusted Computer Platform

• Transmission Control Protocol

Select the correct method used to setup a virtual circuit

• SYN ->

  <- SYN/ACK

  Ack->

• SYN ->

  <- SYN

  Ack->

• SYN ->

  <- ACK

  Ack->

• SYN ->

  <- ACK

  SyN/Ack->

What is a function of Layer 4 of the OSI model?

• to apply framing information to the packet, based on the attached media

• to describe the ordered delivery of data between source and destination

• to specify the packet type to be used by the communications

• to represent data to the user, including encoding and dialog control

Which protocol is used as the transport protocol for a video application?

• TCP

• UDP

• FTP

• RDC

UDP is more reliable than TCP protocol.

• True

• False

What type of packet is shown in the exhibit?

• UDP

• TCP

• FTP

• HTTP

There are both TCP ports and UDP ports, and both use the same number range (0-65535).

• True

• False

What is a syn-flood attack?

• A client requests a TCP connect to a server, but doesn't respond to the server's syn-ack.

• A server ignores a client's connection attempt.

• A client connects to the same server multiple times.

• A client uses telnet to connect to a server.