2.1

Question 1

Most application protocols require the exchange of multiple messages between the client and server. This exchange of such a sequence of messages is called a ___________, thus, the ___________layer. Sessions can work in three modes: simplex, half-duplex, or duplex.

Answer 1

session

Question 2

The _____________ layer of the OSI model (layer 1) is responsible for the transmission and receipt of bits from one node to another node

Answer 2

Physical

Question 3

Bridges perform on Layer ____________

Answer 3

2 (Data Link layer)

Question 4

The ______________ layer (Layer__) transforms data between the format required for the network and the format required for the application.

Answer 4

Presentation, 6

Question 5

The Application layer (Layer 7) ____________the translated data

Answer 5

receives

Question 6

The ____________ layer (Layer ___) represents the dialog control functions that administer the process of establishing the dialog, managing data transfer, and then ending the session

Answer 6

Session, 5

Question 7

The _____________ layer (Layer ___) identifies each type of network application by assigning it a port number.

Answer 7

Transport, 4

Question 8

A _________________ network topology describes the placement of nodes and how they are connected by the network media.

Answer 8

physical

Question 9

A __________________network topology describes the flow of data through the network regardless of its physical layout

Answer 9

logical

Question 10

A ________________network topology has each endpoint connected to a central forwarding node, such as a hub, switch, or router.

Answer 10

star

Question 11

A __________ network topology has each node wired to its neighbor in a closed loop.

Answer 11

ring

Question 12

In a virtualization host, the _________________—manages the virtual environment and facilitates interaction with the computer hardware and network.

Answer 12

hypervisor—or virtual machine monitor (VMM)

Question 13

A metropolitan area network (MAN) is a network that covers an area equivalent to a municipality. A MAN uses a service category such as an __________ which establishes a point-to-point link or an E-LAN, which establishes a mesh topology

Answer 13

E-line,

Question 14

A ________________ provisions access to storage devices at the block level. A ____________ is isolated from the main network. It is only accessed by servers, not by client PCs and laptops.

Answer 14

SAN

Question 15

______________________is a version of the Generic Routing Encapsulation (GRE) protocol that supports point-to-multipoint links, such as the hub and spoke dynamic multipoint Virtual Private Network (VPN).

Answer 15

Multipoint Generic Routing Encapsulation (mGRE)