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chapter 6 review

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IT ESSENTIALS CHAPTER 6 REVIEW

Questão 1 de 23

1

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

Selecione uma das seguintes:

  • repeater

  • hub

  • switch

  • router

Explicação

Questão 2 de 23

1

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.)

Selecione uma ou mais das seguintes:

  • email server

  • router

  • switch

  • web server

  • wireless access point

  • print server.

Explicação

Questão 3 de 23

1

Which technology would be recommended for a business that requires workers to access the internet while visiting customers at many different locations?

Selecione uma ou mais das seguintes:

  • ADSL

  • VPN

  • cellular

  • ISDN

Explicação

Questão 4 de 23

1

When is a dial-up connection used to connect to an Internet provider?

Selecione uma ou mais das seguintes:

  • When a high-speed connection is provided over a cable TV network

  • When a digital connection is provided using ISDN

  • When a regular telephone line is used

  • when a cellular telephone provides the service

Explicação

Questão 5 de 23

1

Which type of connection to the internet is capable of the fastest transfer rates?

Selecione uma ou mais das seguintes:

  • ISDN BRI

  • dial-up

  • ISDN PRI

  • cable

Explicação

Questão 6 de 23

1

Which statement describes the logical topology for a LAN?

Selecione uma ou mais das seguintes:

  • It describes how the computers access the LAN medium

  • It depicts the locations of main routers and switches in a LAN

  • It lists the number of computers, routers, and switches on the LAN.0

  • It defines how computers connect to a LAN

Explicação

Questão 7 de 23

1

ABC Company requires preventive maintenance for all local network cabling once a year. Which task should be included in the preventive maintenance program?

Selecione uma ou mais das seguintes:

  • Replace all labeling on the cables

  • Replace all cable supports to prevent loose attachment points.

  • Disconnect and reconnect all patch cables.

  • Inspect all patch cables for breaks.

Explicação

Questão 8 de 23

1

What is an example of network maintenance?

Selecione uma ou mais das seguintes:

  • Immediately turning off a network device if the network device is making an unusual sound.

  • Educating users on IT policies and procedures.

  • Using cable supports to identify the devices to which the cables are connected

  • Not doing preventive maintenance regularly if the maintenance interrupts network activity

Explicação

Questão 9 de 23

1

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?

Selecione uma ou mais das seguintes:

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

  • The network interface card driver needs to be updated.

  • The IP default gateway on the computer is incorrect

  • The computer cannot communicate with a DHCP server.

Explicação

Questão 10 de 23

1

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

Selecione uma ou mais das seguintes:

  • Bluetooth

  • IEEE 802.11n wireless

  • fiber optic cabling

  • coaxial cabling

Explicação

Questão 11 de 23

1

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

Selecione uma ou mais das seguintes:

  • Data Link

  • Application

  • Network

  • Transport

  • Physical

  • Session

  • Presentation

Explicação

Questão 12 de 23

1

A device has an IPv6 address listed as 2001:0D88:75a3:0607:1234;aa10;ba01. What is the interface ID of the device?

Selecione uma ou mais das seguintes:

  • ba01

  • 0607:1234:aa10:ba01

  • 2001:0D88:75a3

  • 2001:0D88

Explicação

Questão 13 de 23

1

What is a characteristic of the UDP protocol?

Selecione uma ou mais das seguintes:

  • low overhead

  • error correction

  • guaranteed delivery

  • end-to-end establishment before delivery

Explicação

Questão 14 de 23

1

What would be a disadvantage of configuring a wireless router or access point to operate only in accordance with the 802.11g protocol standard?

Selecione uma ou mais das seguintes:

  • 802.11a wireless devices will not be able to connect to the wireless network.

  • The 802.11g standard does not support static IP addressing.

  • The 802.11g standard does not support advanced network security features.

  • Using only 802.11g will cause multiple SSIDs to be broadcast.

Explicação

Questão 15 de 23

1

What is the maximum segment length that is specified by the 100BASE-T standard?

Selecione uma ou mais das seguintes:

  • 1640 ft (500 m)

  • 984 ft (300 m)

  • 328 ft (100 m)

  • 3280 ft (1000 m)

  • 607 ft (185 m)

Explicação

Questão 16 de 23

1

Which two characteristics describe Ethernet technology?

Selecione uma ou mais das seguintes:

  • 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 a ring topology

  • It uses the CSMA/CD access control method.

Explicação

Questão 17 de 23

1

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

Selecione uma ou mais das seguintes:

  • The company network requires secure access to confidential information.

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

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

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

  • The network is small with fewer than eight users.

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

Explicação

Questão 18 de 23

1

What benefit is provided by a computer data network?

Selecione uma ou mais das seguintes:

  • increased security

  • decentralized administration

  • resource sharing

  • simplified troubleshooting

Explicação

Questão 19 de 23

1

When would a printer be considered a network host?

Selecione uma ou mais das seguintes:

  • when it is connected to a workstation

  • when it is connected to a laptop

  • when it is connected to a switch

  • when it is connected to a PC

Explicação

Questão 20 de 23

1

A user can print to a printer that is on the same network, but the traffic of the user cannot reach the Internet. What is a possible cause of the problem?

Selecione uma ou mais das seguintes:

  • The PC default gateway address is missing or incorrect.

  • The NIC on the PC is faulty

  • The PC has an incorrect IP address.

  • The network cable connected to the user PC is faulty.

Explicação

Questão 21 de 23

1

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

Selecione uma ou mais das seguintes:

  • the maximum cable distance in meters

  • the series number of the standard

  • the maximum number of network nodes

  • the maximum bandwidth in Mb/s

Explicação

Questão 22 de 23

1

A user installs a new gigabit NIC in a PC. The user notices that the data transfer rate is much slower than expected. What should the user do to fix the problem

Selecione uma ou mais das seguintes:

  • Change the NIC duplex setting from half duplex to full duplex.

  • Disable sleep mode.

  • Disable hibernation mode

  • Change the value assigned to the NIC wake-on-LAN setting.

Explicação

Questão 23 de 23

1

A company adds a few refurbished computers to a network. The company finds, however, that the refurbished computers perform significantly worse than the original networked computers do. The original computers performed much faster with applications that required the transfer of data over the network. What should the company technicians do?

Selecione uma ou mais das seguintes:

  • Check if the refurbished computers are using a VPN

  • Check if the network interface cards in the refurbished computers are limited to 10 Mb/s.

  • Check if subnet mask is correct

  • Check if the gateway address is correct.

Explicação

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