1. A network administrator has a multi-floor LAN to monitor and maintain. Through careful monitoring, the administrator has noticed a large amount of broadcast traffic slowing the network. Which device would you use to best solve this problem?

bridge

hub

router

transceiver

2. What is the function of a Layer 2 switch?

forwards data based on logical addressing

duplicates the electrical signal of each frame to every port

learns the port assigned to a host by examining the destination MAC address

determines which interface is used to forward a frame based on the destination MAC address

1. How does 1000BASE-T use the UTP wire pairs to accomplish transmission?

two pairs are used to transmit and two pairs are used to receive

one pair is used to transmit, one pair is used to receive, one pair is used for clocking, and one pair is used for error correction

all four pairs are used in parallel by both hosts to transmit and receive simultaneously

two pairs of wires are used as in 10BASE-T and 100BASE-TX

2. Which RJ-45 pins are used to transmit and receive data in an Ethernet 100BASE-TX Category 5 UTP cable? (Choose two.)

1 and 2

3 and 6

4 and 5

7 and 8

1. A router has an Ethernet, Token Ring, serial, and ISDN interface. Which interfaces will have a MAC address?

serial and ISDN interfaces

Ethernet and Token Ring interfaces

Ethernet and ISDN interfaces

Token Ring and serial interfaces

2.

Refer to the exhibit. A technician wants to increase the available bandwidth for the workstation by allowing the switch and the NIC on the workstation to transmit and receive simultaneously. What will permit this?

CSMA/CD

full-duplex

FastEthernet

crossover cable

1. Which of the following are benefits of peer-to-peer networks? (Choose three.)

centralized security

easy to create

very scalable

no centralized equipment required

centralized administrator not required

centralized control of assets

2. What is the most common type of cabling used in LANs?

STP

UTP

coax

fiber

1. What factors need to be considered to limit the amount of signal attenuation in Ethernet cable runs? (Choose two.)

type of users

number of users

length of cable

type of electrical equipment

installation of connectors on the cable

2. A company needs to extend the LAN to six separate buildings. To limit the amount of signal attenuation on the LAN media, what type of media would be the best to use between the buildings?

air (wireless)

coaxial cable

fiber

shielded twisted pair

unshielded twisted pair

1. What factors should be considered when selecting the appropriate cable for connecting a PC to a network? (Choose two.)

type of system bus

motherboard model

distance of cable run

speed of transmission

computer manufacturer

2. What are two advantages of using UTP cable in a networking environment? (Choose two.)

is stiffer than STP

is less expensive than fiber

is easier to install than coaxial

provides longer distances than coaxial provides

is less susceptible to outside noise sources than fiber is

1. What is the term used to describe the transport layer protocol data unit?

bits

packets

segments

frames

data streams

2. Refer to the following list. Choose the correct order of data encapsulation when a device sends information.

     1. segments

     2. bits

     3. packets

     4. data

     5. frames

1 - 3 - 5 - 4 - 2

2 - 1 - 3 - 5 - 4

2 - 4 - 3 - 5 - 1

4 - 3 - 1 - 2 - 5

4 - 1 - 3 - 5 - 2

3 - 5 - 1 - 2 – 4

1. What is the hexadecimal equivalent for the binary number 00100101?

15

20

25

30

37

40

2. Which of the following are popular web browsers? (Choose two.)

Acrobat

Internet Explorer

Macromedia Flash

Netscape Navigator

Quicktime

World Wide Web