Computer Internet Questions and Answers

Q: The internal network of a company is very large and would like to subnet into smaller parts. From the options given below, the device that will not be used to separate LAN and still protect critical resources is

Correct answer: The modem between computersRouters, firewalls and switches all divide a network into parts and control what passes between them. A modem converts signals for transmission over a line; it does not subnet anything or filter traffic, so it neither separates the LAN nor protects it.

Q: The Rate of transfer of data in LAN is

Correct answer: Mega bits per secondLAN speeds are quoted in megabits per second - 10, 100 and 1000 Mbps for the successive generations of Ethernet. Kilobit rates belong to dial-up modems.

Q: The following tool bars display in the word application window by default

Correct answer: Formatting tool barWord displays the Standard and Formatting toolbars by default. The Drawing and Forms toolbars have to be switched on.

Q: What term is often used for an email account that includes a storage area?

Correct answer: MailboxA mailbox is the account together with the storage that holds its messages. An IP address identifies a machine and an attachment is a file carried with a message.

Q: Which of the following is not a network device?

Correct answer: ModemRouters, switches and bridges all forward traffic between hosts or segments within a network. A modem converts between digital and analogue signals so that data can cross a telephone line; it adapts the signal rather than making forwarding decisions, which is why it is not counted among the network devices proper.

Q: Every node on the network is connected through a central device is called _____ topology.

Correct answer: StarIn a star topology every node has its own link to a central hub or switch, so all traffic passes through that centre. That makes cabling simple and one node's failure harmless, at the cost of depending entirely on the central device.

Q: Which of the following are unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet? 1. Half-duplex Ethernet operates in a shared collision domain. 2. Half-duplex Ethernet operates in a private collision domain. 3. Half-duplex Ethernet has higher effective throughput. 4. Half-duplex Ethernet has lower effective throughput.

Correct answer: 1 and 4Half-duplex Ethernet cannot send and receive at once, so every station shares one collision domain and must use CSMA/CD to detect and recover from collisions. Full duplex has a separate path each way, so collisions cannot occur and collision detection is switched off.

Q: Which of the following topologies is not of broadcast type?

Correct answer: StarIn bus and ring topologies a signal reaches every station, so both are broadcast arrangements. In a star the central device receives each transmission and passes it on only where it is needed, so it is not inherently broadcast.

Q: _____________ is a search engine

Correct answer: GoogleGoogle is a search engine; Internet Explorer and Firefox are browsers, which are how a search engine is reached, and Flash was a plug-in for animation.

Q: Which one of the following describes the contents of the message when sending an email?

Correct answer: SubjectThe subject line describes what the message is about. To, Cc and Bcc all name recipients rather than content.

181.

The internal network of a company is very large and would like to subnet into smaller parts. From the options given below, the device that will not be used to separate LAN and still protect critical resources is

A.The modem between computers
B.A router between subnet
C.An internal firewall
D.A switch between departments

Answer: A

Correct answer: The modem between computers

Routers, firewalls and switches all divide a network into parts and control what passes between them. A modem converts signals for transmission over a line; it does not subnet anything or filter traffic, so it neither separates the LAN nor protects it.

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182.

The Rate of transfer of data in LAN is

A.Tera bits per second
B.Kilo bits per second
C.Mega bits per second
D.Bits per second

Answer: B

Correct answer: Mega bits per second

LAN speeds are quoted in megabits per second - 10, 100 and 1000 Mbps for the successive generations of Ethernet. Kilobit rates belong to dial-up modems.

Discuss in Forum

183.

The following tool bars display in the word application window by default

A.Forms tool bar
B.Formatting tool bar
C.Drawing tool bar
D.All of the above

Answer: B

Correct answer: Formatting tool bar

Word displays the Standard and Formatting toolbars by default. The Drawing and Forms toolbars have to be switched on.

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184.

What term is often used for an email account that includes a storage area?

A.IP address
B.Hyperlink
C.Mailbox
D.Attachment

Answer: C

Correct answer: Mailbox

A mailbox is the account together with the storage that holds its messages. An IP address identifies a machine and an attachment is a file carried with a message.

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185.

Which of the following is not a network device?

A.Router
B.Switch
C.Modem
D.Bridge

Answer: C

Correct answer: Modem

Routers, switches and bridges all forward traffic between hosts or segments within a network. A modem converts between digital and analogue signals so that data can cross a telephone line; it adapts the signal rather than making forwarding decisions, which is why it is not counted among the network devices proper.

Discuss in Forum

186.

Every node on the network is connected through a central device is called _____ topology.

A.Ring
B.Bus
C.Star
D.Mesh

Answer: C

Correct answer: Star

In a star topology every node has its own link to a central hub or switch, so all traffic passes through that centre. That makes cabling simple and one node's failure harmless, at the cost of depending entirely on the central device.

Discuss in Forum

187.

Which of the following are unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
1. Half-duplex Ethernet operates in a shared collision domain.
2. Half-duplex Ethernet operates in a private collision domain.
3. Half-duplex Ethernet has higher effective throughput.
4. Half-duplex Ethernet has lower effective throughput.

A.2 only
B.1,2 and 3
C.1 and 4
D.4 only

Answer: C

Correct answer: 1 and 4

Half-duplex Ethernet cannot send and receive at once, so every station shares one collision domain and must use CSMA/CD to detect and recover from collisions. Full duplex has a separate path each way, so collisions cannot occur and collision detection is switched off.

Discuss in Forum

188.

Which of the following topologies is not of broadcast type?

A.Star
B.Bus
C.Ring
D.All of these

Answer: B

Correct answer: Star

In bus and ring topologies a signal reaches every station, so both are broadcast arrangements. In a star the central device receives each transmission and passes it on only where it is needed, so it is not inherently broadcast.

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189.

_____________ is a search engine

A.Flash
B.Google
C.Internet explorer
D.Fire Fox

Answer: B

Correct answer: Google

Google is a search engine; Internet Explorer and Firefox are browsers, which are how a search engine is reached, and Flash was a plug-in for animation.

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190.

Which one of the following describes the contents of the message when sending an email?

A.To
B.Subject
C.CC
D.BCC

Answer: B

Correct answer: Subject

The subject line describes what the message is about. To, Cc and Bcc all name recipients rather than content.

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