Networking

Question 1

What is the local host?

Answer 1

The computer that’s in front of you

Question 2

What is a host?

Answer 2

Any computing device connected to a network

Question 3

What’s a remote host?

Answer 3

Any computing device on the network or reachable beyond the network

Question 4

What’s a server?

Answer 4

The remote computer that serves the Web site

Question 5

What’s the client?

Answer 5

Your compuuter

Question 6

What is the term that describes how data is transferred from one device to another?

Answer 6

Frames

Question 7

What does UTP stand for?

Answer 7

Unshielded Twisted Pair

Question 8

What’s a crossover cable?

Answer 8

A standard UTP cable with one RJ-45 connector using the T568A standard and other other using a T568B standard.

The signal between sending and receiving wires and thus does the job of a hub or switch. Crossover cables work great as a quick way to connect two computers directly for a quick and dirty network.

Question 9

Out of the different Fiber Cables, which one is designed to support two fiber cables in one connectiion?

ST

SC

LC

Answer 9

Newer connectors like LC are designed to support two fiber cables in one connecter, a real space saver.

Question 10

How does multimode Fiber Optic cabling work?

Answer 10

Uses LEDs (light emitting diodes) to send light signals

Multimode fiber transmits multiple light signals at the same time, each using a different reflection angle within the core of the cable.

The multiple reflection angles tend to disperse over long distances, so Multimode fiber optic cables are used for relatively short distances.

Multimode networks run:

10 Mbps

100 Mbps

1000 Mbps

SOME can go 10,000 Mbps

DISTANCE: 600 meters

Question 11

How does Single-mode Fiber Optic cabling workk?

Answer 11

Uses laser light

Allows for phenomenally high transfer rates over long distances

100 Terabits per second

Over 100 miles

Question 12

What is the Ohm impedance of an RG-6 and RG-59 coaxial cable?

Answer 12

75-Ohms

Question 13

What is a LAN?

Answer 13

A Local Area Network

A group of computers located physically close to each other—no more than a few hundred meters apart at most.

Question 14

What is a broadcast domain?

Answer 14

A group of computers connected by one or more switches

Question 15

What is a bridge?

Answer 15

A device that connects dissimilar network technologies that transmit the same signal

Question 16

What’s the difference between Solid Core and Stranded Core UTP cables?

Answer 16

Each wire in solid core UTP uses a single solid wire. With stranded core, each wire is actually a bundle of tiny wire strands

Solid core is a better conductor, but it is stiff and will break if handled too often or too roughly.

Stranded core is not quite as good a conductor, but it will stand up to substantial handling without breaking.

Question 17

What’s a punchdown tool used for?

Answer 17

Securing UTP connections to a punchdown block

Question 18

What’s a WAN?

Answer 18

Wide Area Network

You connect LANs into a WAN with a magical box called a router (see Figure 20-41). The best example of a WAN is the Internet.

Question 19

How many bits are in a MAC address?

Answer 19

48

Question 20

Which of the following is an example of a hybrid topology?

A. Bus

B. Ring

C. Star

D. Star bus

Answer 20

D. Star Bus

Question 21

Why would you use STP (Shielded Twisted Pair) over UTP (Unshielded Twisted Pair) cabling?

Answer 21

Shielded twisted pair cabling handles interference from other electronics much better than unshielded twisted pair.

Question 22

Which of the following network standards can operate at two different channel widths on the same spectrum simultaneously

Answer 22

802.11n

Question 23

What is an industry standard protocol used by computer networks to assign IP Addresses to network nodes and devices?

Answer 23

DHCP

Question 24

You need to configure a SOHO network to provide IP Addresses to devices on the network. Which feature should be enabled?

Answer 24

DHCP