2. What is the World Wide Web? The World Wide Web is an application that utilises the Internet to provide a ubiquitous and user-friendly interface on which to share and retrieve information (Pallen, 1995). Accessed via software called web browsers, the Web is a database of documents, all linked together to form a limitless ‘web’ of information (Woods, 2013c). These documents are a combination of hypertext and hypermedia, meaning that they contain both text and other media such as audio, images or video, which are able to be linked to other documents or ‘webpages’ (Ingram, 1995).
With hypertext, a word or phrase can contain a link to another Web site. 3 What is a computer network? A collection of computers, servers, mainframes, network devices, peripherals, or other devices connected to one another allowing for data to be shared and used. A great example of a network is the Internet. 4 What is the difference between an intranet and an extranet?
Most networks use __________________ to dynamically assign addresses and configure computers to use them. Dynamic Host Configuration Protocol (DHCP) 9. The Windows 7 utility that displays a list of the routers currently forwarding packets to a particular destination is called __________________. Tracert.exe 10. The top and bottom layers of the OSI model are called the __________________ and ________________ layers.
Prior to the introduction of the domain name system, computers use hosts files to map human readable names to ip addresses. A sub-net mask is used to separate the host address portion of an IP address from the network address. The sub-net mask within the TCP/IP configuration is used to distinguish the network address from the host address. In dotted-decimal notation, each Ipv4 address is broken into four octets. Server computers and other systems that need to be accessed reliably by network clients should be configured with a static IP address.
TCP is the transport layer protocol that links the application layer to the network layer. TCP breaks the data into smaller packets, numbers the packets, ensures each packet is reliably delivered, and puts the packets in the proper order at the destination. IP is the network layer protocol and performs addressing and routing. IP software is used at each of the computers through which the message passes through; IP routes the message to the final destination. TCP/IP is the transport & network layer protocol used on the Internet.
Are the computers in the same network? Show your work. 14. List all the possible routes from Router B to Router D in the network shown in problem 13. a. Router B -> Router A -> Router E -> Router D b. Router B -> Router E -> Router D 16. List the subnets attached to Router C in Figure 6-21.
10.10.0.10 Question 12 What value is configured in the DNS Servers: line? 10.10.0.10 Question 13 What is the default location for DHCP server backups? C:\windows\system32\DHCP\co-occurrence\ Question 14 What IP address is configured on the SEA-SVR2computer? 169.254.209.252 Question 15 What appears in the IP address text box? 10.10.0.55 Question 16 From which DHCP server are you receiving an IP address?