Peer-to-peer - True

Client-server - False

Broadband - False

Client - False

1. Which of the following is (are) true regarding analog signals?

• Analog signals typically represent an unlimited range of values.
• Analog signals typically have a smooth and curved waveform.

I and II - True

I only - False

II only - False

None - False

1. Which of the following is (are) true regarding STP and UTP cables?

• Twisted pairs of STP cables are encased with a foil shield, while twisted pairs of UTP cables contain no such shielding.
• UTP is more expensive than STP, but offers greater protection against noise interference.

I only - True

I and II - False

II only - False

None - False

1. Which of the following is (are) true regarding fiber-optic cables?

• Fiber-optic cables can be used to transmit electric signals.
• Fiber-optic cable is a bundle of extremely thin tubes of glass called optical fibers.

II only - True

I and II - False

I only - False

None - False

1. Which of the following is (are) true regarding network devices?

• A hub is a device that connects several nodes of a local area network.
• A router is a device that is connected to more than one network and makes decisions regarding the best route for data.
• A repeater is a device that amplifies and regenerates signals so that they can retain the necessary strength to reach their destinations.

I, II, and III - True

I and II only - False

I and III only - False

II and III only - False

1. Which of the following is (are) true regarding dial-up connections?

• Dial-up connections use the telephone service to transport data between the computer and an ISP.
• When a dial-up connection is used, a dedicated link is established between the computer and the ISP.

I and II - True

I only - False

II only - False

None - False

1. Which of the following is (are) true regarding the use of cable television connections to provide Internet access?

• An Ethernet card and a cable modem are required to access the Internet over a cable television system.
• The connection speed of a cable television connection depends on the current amount of traffic over the CATV cables.

I and II - True

I only - False

II only - False

None - False

1. Which of the following is (are) true regarding Internet access?

• In ADSL connections, the upstream speed of data transfer is faster than the downstream speed.
• In DSL connections, the digital-to-analog and analog-to-digital conversions are avoided.
• DSL runs over standard telephone lines.

II and III only - True

I and II only - False

I and III only - False

I, II, and III - False

1. How many bytes long is an IP address?

Four - True

Six - False

Eight - False

Two - False

1. A device to connect two or more networks is known as a (n)

Router - True

NIC - False

DNS server - False

Domain - False

1. Which of the following is a layer of protocol on top of IP that guarantees that packets will be received in the same order they were sent and that none will be lost?

TCP - True

DNS - False

TRACERT - False

Ethernet - False

1. What system is used to translate domain names to IP addresses?

DNS - True

TCP - False

Routers - False

ISP - False

1. Computers that use a dial-up connection to the Internet are typically assigned a _____ IP address.

Dynamic - True

Static - False

Backbone - False

Permanent - False

1. Which of the following means of connecting to the Internet uses (use) standard copper telephone lines?

• 56 Kbps modems
• Cable modems
• xDSL

Date: 2015-12-18; view: 810