Chapter 7: Networking concepts

Question 1

How many devices can a Bluetooth device connect to simultaneously?

Answer 1

7 devices

Question 2

A device has an IPv6 address of 2001:0DB8:75A3:0214:0607:1234:AA10:BA01.
What’s the host identifier of the device?

Answer 2

0607:1234:AA10:BA01

Question 3

Which layer of the OSI model is responsible for logical addressing and routing?

Answer 3

Network

Question 4

When would a printer be considered a network host?

Answer 4

When the printer is connected to a switch.

Question 5

Which decides provides wireless connectivity to users as a primary function?

Answer 5

Access Point

Question 6

Which technology is more often used to connect devices to PAN?

Answer 6

Bluetooth

Question 7

Which three factors are reasons for a company to choose a client/server model for a network instead of peer-to-peer?

Answer 7

1. The company network requires secure access to confidential information.
2. The data gathered by the employees is critical and should be backed up on a regular basis.
3. The users need a central database to store inventory and sales information.

Question 8

What’s a characteristic of a LAN?

Answer 8

It connects to multiple networks that are geographically separated.

Question 9

Which three layers of the OSI model map to the application layer of the TCP/IP model?

Answer 9

Application – Presentation – Session

Question 10

What’s the correct order of the layers of the TCP/IP model from the top layer to the bottom?

Answer 10

Application – Transport – Internet – Network

Question 11

What TPC/IP model layer is responsible for MAC addressing?

Answer 11

Network access

Question 12

What PDU is associated with the network layer of theOSI model?

Answer 12

Packet

Question 13

Which two layers of the OSI model correspond to the functions of the TCP/IP model network access point?

Answer 13

Physical and Data link

Question 14

What is identify by 100 in a BASE-TX standard?

Answer 14

The maximum bandwidth in Mb/s
100 - bandwidth
BASE - database
TX - twisted-pair

Question 15

Which two characteristics describe Ethernet Tech?

Answer 15

1. It is supported by IEEE802.3

2. It uses the CSMA/CD access control method

Question 16

Which IEEE standards operates at wireless frequencies in both 5GHz and 2.4GHz?

Answer 16

IEEE 802.11n

Question 17

A customer is considering a multipurpose device to create a home network. Which three devices are usually integrated into a multipurpose network device?

Answer 17

Switch – Router – Wireless access point

Question 18

Which network device makes forwarding decisions based on the destination MAC address that is contained in the frame?

Answer 18

Switch

Question 19

A uses IP addresses to forward traffic from one network to another network?

Answer 19

Router

Question 20

A network specialist has been hired to install a network in a company that assembles airplane engines. Because of the nature of the business, the area is highly affected by electromagnetic interference. Which type of network media should be recommended so that the data communication will not be affected by EMI?

Answer 20

Fiber-optic

Question 21

Which terms describes a type of coax cable?

Answer 21

RG-6

Question 22

Which pairs of wires change termination order between the 568A and 568B standards ?

Answer 22

Green &Orange

Question 23

Which two types of signal interference and reduce more by STP than UTP?

Answer 23

EMI and RFI (and crosstalk)

Question 24

How many host addresses are available on a network with a subnet mask of 255.255.0.0?

Answer 24

65. 543

Question 25

A technician is troubleshooting a problem where the user claims access to the Internet is not working, but there was access to the Internet the day before. Upon investigation, the technician determines that the user cannot access the network printer in the office either. The network printer is on the same network as the computer. The PC has 169.254.100.88 assigned as an IP address. What’s the most likely problem?

Answer 25

The PC cannot communicate with a DHPC server

Question 26

What’s a characteristic of the UDP protocol?

Answer 26

Low overhead