Quiz 1 Jarkom

How many OSI layers are there?

• 5

• 6

• 7

• 4

Which layer manages the reliable transfer of data from the host to host (or end to end)?

• Network Layer

• Data Link Layer

• Session Layer

• Transport Layer

• Application Layer

What devices operate at the Data Link Layer?

• Hubs

• Switches

• Repeaters

• Routers

Which layer can provide error detection and correction?

• 1

• 2

• 3

• 4

Which statement is correct about network protocols?

• • Network protocols define the type of hardware that is used and how it is mounted in racks.

• They define how messages are exchanged between the source and the destination.

• • They all function in the network access layer of TCP/IP.

• • They are only required for exchange of messages between devices on remote networks.

What is an advantage of network devices using open standard protocols?

• • Network communications is confined to data transfers between devices from the same vendor.

• A client host and a server running different operating systems can successfully exchange data.

• • Internet access can be controlled by a single ISP in each market.

• • Competition and innovation are limited to specific types of products.

At which OSI layer is a source IP address added to a PDU during the encapsulation process?

• Network Layer

• Data Link Layer

• Transport Layer

• Application Layer

What term describes a network where one computer can be both client and server?

• peer to peer

• cloud

• BYOD

• QoS

What term describes a type of network used by people who work from home or from a small remote office?

• SOHO

• BYOD

• QoS

• Conv Net

At which OSI layer is a destination port number added to a PDU during the encapsulation process?

• transport layer

• data link layer

• network layer

• application layer