To communicate with the network, the NAS system uses TCP/IP protocol and is often managed via a web browser interface. Storage can easily be added to the NAS system without worry about network downtime. An NAS system can also be easily configured to make use Raid arrays and scheduled backups and therefore seamlessly guarantee that data is safe at all times. Storage area networks share many of the advantages offered by NAS devices. The factor that differentiates SAN and NAS is the scale through which each can be used.
Class A addresses were created for a very large network with few logical network segments and many hosts that have the high-order bit set to zero. The first octet is used to define the network ID. Class A address cannot be greater than 127 because a value of 128 would require the left-most bit be set to 1. Class B addresses always have the first two high-order bits that are set to 10 and are used for medium-sized networks that have a moderate number of hosts connected to them. The Class B network ID, will utilize the first two octets for the network ID, which allows more network IDs and fewer hosts than a Class A network, because it uses an additional octet for the network.
Manages client’s firewalls and router configurations .The goal is to allow users the most access possible by making sure the data traveling in and out is safe 6. Remote Access • Remote Access Domain connects remote users to the organizations IT
Some of these machines may be just under 2TB or up to 40TB. With port replication and add-on hardware drive controller cards there really isn’t a limit on storage capacity. Is there any fault tolerance (such as RAID) built into a NAS device? RAID 50 is fairly stable if set-up correctly but RAID 10 has been declared as one of the best setups because even if more drives fail at one time there will be no data loss. Are management features available?
9. Which of the following are advantages of using a bridge to interconnect LANs? Answer: Relatively inexpensive, Easy to install, Reduces collision domains Section 5-3 10. The network switch operates at what layer of the OSI model? Answer: layer 2 -Data Link Layer 11.
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.
C. two PCs, with one cabled to a router Ethernet port with a crossover cable and the other PC cabled to another router Ethernet port with a crossover cable. 7. A. hubs create a single electrical bus to which all devices connect, causing the devices to share the bandwidth. C. hubs allow collisions to occur when two attached devices send data at the same time. 8.
NT1310 Physical Networking Unit 3 Assignment 1 Network Topology Paper * Ring Topology is a network setup that the devices are connected in a ring they can pass information back and forth to each other according to their ring structure. A Ring topology is highly useful and handles more loads better than the bus topology. Ring topology can also be called an Active Topology because messages are passed to each device in the ring. Some Ring topologies setups work differently based on which devices are being linked together to form the network. One of the advantages of a ring topology is the installation and troubleshooting.
William H. NT1310 – Mrs. Goodbar 4/2/14 Unit 3 Assignment 1: Network Topology Paper Hierarchal Star each of these devices comes with its own cable that links to a central hub, or sometimes a switch, multipoint repeater, or even what is called a MAU (Multistation Access Unit). Data passes via the hub to reach other devices on the network, one of the most common networks are Star Networks. Star Network is one of the easiest network setups, a downside is that if your hub goes down the entire network goes down. A bus topology is a type of network setup where each computer and network device is connected to a single cable or backbone. One way to think about a bus topology is that the line connected to all of the devices or nodes in the network
The amount of units that the data is sent in is called packets. Datagrams: Datagrams aren't very reliable because they work by themselves and also you aren't always guaranteed that your data will get to it's destination as a whole when you first sent it. This is were higher protocols come into play because they decide whether the data reaches it's destination. People who stream a lot such as, video, audio, voice use datagrams because it'll still be okay if a few are lost on the way. Addresses: An address is given to a computer by the router.