It-essentials Chapter 7 Exam v6.0 2016


1. How many devices can a Bluetooth device connect to simultaneously?

127

7*

10

24

5

 

2. A device has an IPv6 address of 2001:0DB8:75a3:0214:0607:1234:aa10:ba01 /64. What is the host identifier of the device?

2001:0DB8:75a3

0607:1234:aa10:ba01*

2001:0DB8

ba01

 

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

application

data link

network*

transport

 

4. When would a printer be considered a network host?

when it is connected to a switch*

when it is connected to a workstation

when it is connected to a laptop

when it is connected to a PC

 

5. Which device provides wireless connectivity to users as its primary function?

switch

router

access point*

modem

 

6. Which technology is most often used to connect devices to a PAN?

coaxial cabling

Bluetooth*

fiber optic cabling

IEEE 802.11n wireless

 

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

The network is small with fewer than eight users.

The company network requires secure access to confidential information.*

The users need a central database to store inventory and sales information.*

Each user understands how to safely share files across a network.

The data gathered by the employees is critical and should be backed up on a regular basis.*

All employees passed a strict background check as part of the corporate hiring practices.

 

8. What is a characteristic of a WAN?

It connects multiple networks that are geographically separated.*

It spans across a campus or city to enable sharing of regional resources.

It is typically owned and managed by a single home or business.

It requires a wireless access point to connect users to the network.

 

9. Which three layers of the OSI model map to the application layer of the TCP/IP model? (Choose three.)

application*

presentation*

session*

transport

network

data link

physical

 

10. What is the correct order of the layers of the TCP/IP model from the top layer to the bottom?

application, session, network, data link, physical

application, internet, network access, transport

network access, transport, internet, application

application, transport, internet, network access*

 

11. What TCP/IP model layer is responsible for MAC addressing?

network access*

internet

transport

application

 

12. What PDU is associated with the network layer of the OSI model?

data

frame

packet*

segment

 

13. Which two layers of the OSI model correspond to the functions of the TCP/IP model network access layer? (Choose two.)

physical*

data link*

network

transport

session

 

14. What is identified by the 100 in the 100BASE-TX standard?

the maximum bandwidth in Mb/s*

the maximum cable distance in meters

the maximum number of network nodes

the series number of the standard

 

15. Which two characteristics describe Ethernet technology? (Choose two.)

It is supported by IEEE 802.3 standards.*

It is supported by IEEE 802.5 standards.

It typically uses an average of 16 Mb/s for data transfer rates.

It uses the CSMA/CD access control method.*

It uses a ring topology.

 

16. Which IEEE standard operates at wireless frequencies in both the 5 GHz and 2.4 GHz ranges?

802.11n*

802.11g

802.11b

802.11a

 

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

web server

switch*

router*

email server

wireless access point*

print server

 

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

repeater

hub

switch*

router

 

19. Fill in the blank.

A   router  uses IP addresses to forward traffic from one network to other networks.

 

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?

STP

coaxial

fiber optic*

UTP

 

21. Which term describes a type of coaxial cable?

RG-6*

568A

UTP

Cat 5e

 

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

green and orange*

green and brown

blue and brown

brown and orange

 

23. Which two types of signal interference are reduced more by STP than by UTP? (Choose two.)

RFI*

white noise

MDF

dispersion

EMI*

 

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

65,534*

254

16,777,214

1024

 

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 computer has 169.254.100.88 assigned as an IP address. What is the most likely problem?

The computer cannot communicate with a DHCP server.*

The IP default gateway on the computer is incorrect.

The network interface card driver needs to be updated.

The router that connects this network to other networks is down.

 

26. What is a characteristic of the UDP protocol?

low overhead*

guaranteed delivery

error correction

end-to-end establishment before delivery


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