3.5 - Communications Assessment

What is the main difference between a wide area network (WAN) and a local area network (LAN) in terms of distribution?

• LAN is situated on multiple sites, while WAN is situated on a single site.

• LAN is situated on a single site, while WAN is situated on multiple sites.

• LAN and WAN are both situated on multiple sites.

• LAN and WAN are both situated on a single site.

Answer explanation

The main difference between a WAN and a LAN is that a LAN is situated on a single site, while a WAN is situated on multiple sites.

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A1

Which specialist hardware analyzes each packet of data and sends it to the computer it was intended for?

• Hubs

• Routers

• Gateways

• Switches

Answer explanation

Switches are specialist hardware that analyze each packet of data and send it to the computer it was intended for.

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A5

What is the main advantage of a star network topology?

• Low cost and easy setup

• Very reliable

• Self-healing capability

• High transfer speeds

Answer explanation

The main advantage of a star network topology is its high reliability.

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A2

What type of connection uses protocols like Cat6 cabling using Ethernet?

• Wireless Connections

• LAN Connections

• Wired Connections

• Bluetooth Connections

Answer explanation

Cat6 cabling using Ethernet is used for wired connections, not wireless, LAN, or Bluetooth connections.

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A3

Which switching method is less susceptible to interception and more robust?

• Neither are susceptible to interception

• Both are equally susceptible

• Packet Switching

• Circuit Switching

Answer explanation

Packet Switching is less susceptible to interception and more robust compared to Circuit Switching.

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A4

Which protocol allows sharing webpages across different computers and browsers?

• FTP

• TCP/IP

• Wi-Fi

• HTTP

Answer explanation

HTTP is the correct choice as it allows sharing webpages across different computers and browsers.

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A5

What are the typical contents of a TCP/IP packet?

• Source address, destination address, data, tracking information, checksum

• Source address, destination address, data, tracking information, error correction code

• Source address, destination address, data, tracking information, encryption key

• Source address, destination address, data, tracking information, compression algorithm

Answer explanation

A TCP/IP packet typically contains the source address, destination address, data, tracking information, and a checksum. This ensures reliable transmission of data.

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A6

Which layer of the TCP/IP model is responsible for basic communication language of the Internet?

• Application

• Transport

• Network

• Physical

Answer explanation

The Network layer is responsible for the basic communication language of the Internet.

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A7

What is the main function of DNS servers?

• Resolve web addresses into IP addresses

• Transfer data between devices

• Store the addresses of computers on the network

• Join together two networks that use different base protocols

Answer explanation

DNS servers resolve web addresses into IP addresses.

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A5

What is the importance of the TCP/IP 5-layer model?

• It is responsible for storing the addresses of computers on the network

• It allows people to log into a network remotely

• It joins together two networks that use different base protocols

• It consists of a suite of related protocols

Answer explanation

The TCP/IP 5-layer model is important because it consists of a suite of related protocols.

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A6