Network+ OSI Model

Alice is a network administrator designing a new Local Area Network (LAN). She needs to determine the type of cabling and the network topology to implement.

Which layers of the Open Systems Interconnection (OSI) model apply to cabling and topology elements?

• Physical and data link layers

• Data link and network layers

• Network and transport layers

• Transport and application layers

Ed is a software developer who has been given the task of creating an application that requires guaranteed delivery of information between end systems.

At which layer of the Open Systems Interconnection (OSI) model does the protocol that provides the guaranteed delivery run, and what type of protocol must Ed use?

• Data link layer; connectionless

• Network layer; connection-oriented

• Transport layer; connection-oriented

• Application layer; connectionless

Which of the following is a correct listing of the Open Systems Interconnection (OSI) model layers, in order, from top to bottom?

• Physical, data link, transport, network, session presentation, application

• Application, session, presentation, transport, network, data link, physical

• Presentation, application, transport, session, network, physical, data link

• Session, application, presentation, transport, data link, network, physical

• Application, presentation, session, transport, network, data link, physical

On a TCP/IP network, flow control is a function implemented in protocols operating at which layer of the Open Systems Interconnection (OSI) model?

• Presentation

• Session

• Transport

• Network

Which of the following protocols operate at the application layer of the Open Systems Interconnection (OSI) model? (Choose all that apply.)

• HTTP

• SNMP

• ICMP

• IGMP

• UDP

A client on a TCP/IP network is attempting to establish a session with a server. Which of the following correctly lists the order of the TCP flags raised in the Transmission Control Protocol (TCP) session establishment messages?

• SYN, ACK, SYN, ACK

• SYN, SYN, ACK, ACK

• SYN/ACK, SYN/ACK

• SYN, SYN/ACK, ACK

Which of the following Transmission Control Protocol (TCP) control bits signals to initiate the termination of a session?

• SYN

• URG

• FIN

• END

• PSH

Which of the following is the Maximum Transmission Unit (MTU) size for an Ethernet

frame?

• 512

• 1024

• 1500

• 1518

In the Open Systems Interconnection (OSI) model, at which layer does the Internet Protocol (IP) operates, and whether it is connection-oriented or connectionless?

• Network; connection-oriented

• Network; connectionless

• Transport; connection-oriented

• Transport; connectionless

At which of the Open Systems Interconnection (OSI) model layers does a switche

performs its basic functions?

• Physical

• Data Link

• Network

• Trnsport