d. The two companies must each connect to a Tier 1 ISP. Answer: B. to send packets through the Internet, a company needs just one connection to an ISP. The ISP then commits to having connections to the rest of the Internet. The two companies do not need a connection to each other, or even to the same ISP. 2.
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.
Lab 5 Lab 5.2.1 Each NIC must have a unique MAC address because all data is forwarded based on the destination address so without it the switch wouldn’t know where to send the data. 5.2.2 Information on the Support tab: Address Type – DHCP IP Address – 10.39.108.176 Subnet Mask – 255.255.252.0 Default Gateway – 10.39.110.15 5.2.3 Physical address of the NIC for this connection: 00-0C-29-20-53-9E 5.2.4 Manufacturer of the NIC: VMWare 5.2.5 IP address of the NIC and default gateway: 10.39.108.176 10.39.110.1 5.2.6 Steps in an ARP Request and Response: Step 1: When a source device want to communicate with another device, source device checks its Address Resolution Protocol (ARP) cache to find it already has a resolved MAC Address of the destination device. If it is there, it will use that MAC Address for communication. To view your Local Address Resolution Protocol (ARP) cache, Open Command Prompt and type command "arp -a" (Without double quotes using Windows Operating Systems). Step 2: If ARP resolution is not there in local cache, the source machine will generate an Address Resolution Protocol (ARP) request message, it puts its own data link layer address as the Sender Hardware Address and its own IPv4 Address as the Sender Protocol Address.
ARP finds the hardware addresses, also known as Media Access Control address, of a host from its known IP address. ARP maintains a table in which MAC addresses are mapped to IP addresses. 2.2.2 UDP-The User Data Protocol was developed to allow for very simple
The MAC layer varies for different network types and is defined by standards IEEE 802.3 through IEEE 802.5. IEEE 802.3: Defines the MAC layer for bus networks that use CSMA/CD. This is the basis of the Ethernet standard. Also see the Ethernet Designations chart in the Quick Referencesection of Webopedia. IEEE 802.4: Defines the MAC layer for bus networks that use a token-passing mechanism (token bus networks).
A personal area network connects wireless devices that are in close proximity to each other. 23. Correct Installing additional servers on a network is relatively simple and usually doesn't disrupt services for existing users. Your Answer: True Correct. Installing additional servers on a network is relatively simple and usually doesn't disrupt services for existing users.
Computers are related to networks due to the fact that computers need to be able to communicate to one another on the same network. Computers come in different sizes and processing levels. Computers are needed in any wireless network. Price varies from $299.99 to $4,999.99 Tiger Direct (n.d.) A firewall is considered a device that connects or is built in the software and directly to a network or computer with Windows XP and higher operating systems. A firewall used security purpose that only allows trusted sources to access the network or the other way around.
. . . : 10.105.13.254 Exercise 1: Check and determine the meaning of the information about IP address and network configuration of your computer. Your computers’ IP number Subnet Mask Router’s IP number Your computers’ MAC number Your Public IP Address