Chapter 1

Question 1

what are the common network components?

5

Answer 1

workstations, servers, hosts.

Question 2

what is a workstation?

5

Answer 2

a workstation is a powerful computer that run more then one CPU and whose resources are available to other users on the network to access when need.

Question 3

list of some common servers?

6

Answer 3

file server, mail server, print server, web server, fax server , Application server, Telephony server, Remote access server, Proxy server.

Question 4

what are Hosts?

7

Answer 4

are network devices, including workstations and servers with IP addresses.

Question 5

what are some of the things that make WAN different then LAN?
8

Answer 5

WAN need a routes ports.
WAN spans larger areas.
WAN is slower the LAN.
we can choose how and when to connect to WAN.
in LAN the workstation is ether connected permanently to it or not.

Question 6

what dose MPLS stand for?

9

Answer 6

multiprotocol label switching.

Question 7

What is one of the most WAN protocol in use today?

9

Answer 7

MPLS

Question 8

MPLS is more popular the other WAN’s because of what ?

9

Answer 8

physical layout flexibility.
prioritizing of Data.
Redundancy in case of link failure.
One to many connection.

Question 9

Network has two types what are they/

9

Answer 9

Peer to peer

client to server.

Question 10

What is a peer to Peer?

10

Answer 10

Peer to Peer is a network that does not have a central computer or dedicated server; in other words, all computers are independent. This network is what you would most likely find in home networks or small networks comprised of a dozen or less computers.

Question 11

which network type do you have if your network is running windows, Mac or Unix in a LAN?
10

Answer 11

Peer to Peer

Question 12

what is Client-Server network?

11

Answer 12

client/server network. A computer network in which one centralized, powerful computer (called the server) is a hub to which many less powerful personal computers or workstations (called clients) are connected. The clients run programs and access data that are stored on the server. Compare peer-to-peer network.

Question 13

what is physical network topology?

12

Answer 13

The physical layout of devices on a network. Every LAN has a topology, or the way that the devices on a network are arranged and how they communicate with each other. The way that the workstations are connected to the network through the actual cables that transmit data, the physical structure of the network is called the physical topology.

Question 14

some of the network topologies?

12

Answer 14

Bus, Ring, Stare, Mesh, Point to Point, Point to multipoint, Hybrid.

Question 15

Bus topology

12

Answer 15

Bus Topology: In networking a bus is the central cable – the main wire – that connects all devices on a local-area network (LAN). It is also called the backbone. This is often used to describe the main network connections composing the Internet. Bus networks are relatively inexpensive and easy to install for small networks.

Question 16

Main Advantage of Bus topology are:

12

Answer 16

It’s easy to connect a computer or device and typically it requires less cable than a star topology.

Question 17

Main Disadvantage of Bus topology are:

12

Answer 17

The entire network shuts down if there is a break in the main wire and it can be difficult to identify the problem if the network shuts down.

Question 18

Star Topology

13

Answer 18

In a star network devices are connected to a central point, called a hub, Switch or an access point.

Question 19

Main Advantage of star topology are:

14

Answer 19

a single cable failure won’t bring down the entire network

• new stations can be added easily.
• easy to troubleshoot.

Question 20

Main Disadvantage of star topology are;

14

Answer 20

If the central point fails, the entire network becomes unusable.
it is more expansive because it required more devices.

Question 21

Ring topology

14

Answer 21

all of the computers are connected in a closed loop. Messages travel around the ring.

Question 22

Mesh Topology

15

Answer 22

In a mesh topology every device has a connection to every other devices in the network. There are two types of mesh topologies:
1- Full mesh topology: Full mesh is usually reserved for backbone networks.
2- Partial mesh topology: is commonly found in peripheral networks connected to a full meshed backbone.

Question 23

Full mesh topology redundancy is greatest then Partial mesh topology redundancy. True or false?
16

Answer 23

True

Question 24

point to point topology

16

Answer 24

The simplest topology with a permanent link between two endpoints.

Question 25

what are the things you need to put in consideration when selecting the right topology for the right network?

20

Answer 25

cost
Ease pf installation
ease of maintenance
Fault tolerance requirement

Question 26

network can be divided in two different parts, what are they/
20

Answer 26

Backbone

Segments