Module 4 Unit 1

Question 1

what is a WAN?

Answer 1

Wide area network, connect sites in different geographic locations

Question 2

what is a packet made up of?

Answer 2

A packet consist of number of fields contains within a header section plus a payload

Question 3

what are the key features of a packet switching network?

Answer 3

Notes within the network and perform a forwarding function, allowing a package to utilize any available path to the network. This makes the network real best against link failures. It is beneficial for the network to use small packets that are easy to resend.

Question 4

What protocol is usually used to provide logical addressing on networks?

Answer 4

IP - Internet protocol

Question 5

what type of address identifies a network interface in the context of the local network segment only?

Answer 5

Media access control address, also known as Mac address

Question 6

what type of devices used to transfer packets between different network

Answer 6

A router

Question 7

which protocol has people to use names/labels to address network resources rather than numeric addresses?

Answer 7

Domain name system

Question 8

which of the following parts of a web address is usually depends on a name resolution service: protocol type location, file path?

Answer 8

The host location is usually represented by a fully qualified to main name such as comia.org resolved to numeric IP address by DNS

Question 9

what does HTTP stand for

Answer 9

Hypertext transfer protocol

Question 10

What email protocol are used to download messages from a Mail server?

Answer 10

either post office, protocol or Internet message access protocol.