Exam

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Question 1

Which good practices will you suggest to your family to improve your home computer network? (400 characters maximum)

Keep the router near the place where you have most of your devices. Avoid having the router inside a closet or in the corner of the room to take the maximum advantage. Use a bandwidth that supports all your devices' connection (sometimes 5Mb or 10Mb are not enough to work properly). Or do not connect all your devices at the same time to the network in case you don't really need them.

0/5

Question 2

Order the following wireless computer networks from the smallest to the biggest, having in mind the covering area provided.

1. Selected: WPANThis answer is incorrect.2. Selected: WLANThis answer is incorrect.3. Selected: WWANThis answer is incorrect.4. Selected: WMANThis answer is incorrect.

10/10

Question 3

Which of the following improvements will be the most appropriate to suggest to the home network that appears in the image:

a. No suggestions, everything is perfect.

b. Increase the bandwidth to 20 Mb.

c. Install an access point in the Service Room.

Selected: d. Move the router close to the Dinning Room.This answer is correct.

e. Install another router in the Living Room.

0/5

Question 4

Correlate the following columns (computer networks with transmission media).

1. WWAN

Selected: a. WiMaxThis answer is incorrect.2. WMAN

Selected: d. GPRS / GSM / UMTS (3G)This answer is incorrect.3. WLAN

Selected: c. WiFiThis answer is correct.4. WPAN

Selected: b. BlueTooth / InfraredThis answer is correct.

5/5

Question 5

If you are working in a computer network were all computers have the same privileges to use the available resources, then you are using a Client/Server network.

True

Selected: FalseThis answer is correct.

5/5

Question 6

Network device that guarantees the security by filtering packets following special policies like blacklists or by closing specific communication ports.

a. Hub

b. Router

Selected: c. FirewallThis answer is correct.

d. Switch

e. Access Point

0/5

Question 7

Media transmission that is not affected by electromagnetic interference.

a. Optical fiber

b. Twisted pair

c. Coaxial cable

d. Twisted pair (RJ45)

Selected: e. None of the aboveThis answer is incorrect.

0/10

Question 8

Correlate the following columns (device name with functionality).

1. Router.

Selected: a. Forwards data packets between computer networks.This answer is correct.2. Wireless Access Point.

Selected: e. Allows wireless devices to connect to a wired network.This answer is correct.3. Switch.

Selected: d. Is an internetworking system capable of join together two networks that use different base protocols.This answer is incorrect.4. Gateway.

Selected: c. Provides the hardware interface between a computer and a network.This answer is incorrect.5. Network Interface Card.

Selected: b. Used to connect devices together on a computer network. Is a multi-port network bridge.This answer is incorrect.

0/5

Question 9

Order the following transmission media for computer networks, from the fastest to the slowest.

1. Selected: Optic fiberThis answer is incorrect.2. Selected: Coaxial cableThis answer is incorrect.3. Selected: Twisted pair cable (RJ-45)This answer is incorrect.4. Selected: Twisted pair cableThis answer is incorrect.

Pending Review

Question 10

Which improvements will you apply to your home computer network to improve the user experience? (400 characters maximum)

I will change the router's place because it is in one corner, so signal is lost many times. I will also increase the bandwidth to 20MB to have more stability in all devices.

0/5

Question 11

A data center provides:

a. Phisical Security

b. Temperature

Selected: c. ConnectivityThis answer is incorrect.

d. All of the above

e. None of the above

0/5

Question 12

Order the following computer networks from the biggest to the smallest, having in mind the covering area provided.

1. Selected: PANThis answer is incorrect.2. Selected: LANThis answer is incorrect.3. Selected: WANThis answer is incorrect.4. Selected: MANThis answer is incorrect.

10/10

Question 13

Relate the left column (protocols), with the right column (functions).

1. HTTPS

Selected: b. Enables computers to share in a safe mode documents using links or hyperlinks.This answer is correct.2. WWW

Selected: a. Enables in Internet the option to reach an specific URL address.This answer is correct.3. TCP / IP

Selected: d. Provides to all computers on a network the option to get communicated by using IP address.This answer is correct.4. FTP

Selected: c. Enables computers to share files, specially using the option download.This answer is correct.

0/5

Question 14

Which of the following network topologies is more appropriate to a client / server architecture?

Selected: a. BusThis answer is incorrect.

b. Ring

c. Star

d. Mesh

0/5

Question 15

Why one of the most frequently way to resolve connectivity issues is to reset the communication devices (routers or access points)?

Selected: a. The connection starts again from the client to the server.This answer is incorrect.

b. The communication devices assign again IP address to al the connected clients.

c. The clients gets new MAC addresses.

d. The network gets a new IP address system.

e. The operative systems on all devices assigns new communication protocols.