Chkdsk: This tool checks the integrity of the harddrives in your machine this tool can check and correct errors found on the local harddrive. The tool can be launched from a command prompt by opening the command prompt and typing in chkdsk. Chkdsk has many options such as chkdsk /f. This command will fix the errors found when you run just the standard chkdsk this only report the status of the harddrive. Next tool on our list is the disk defragmenter tool.
What it is responsible for is the synchronizing frames, error checking, and the flow control. The third layer of the seven layers of (OSI) network model is the Network layer. The responsibility of the Network layer is managing the logical address information in packets and the delivery. The responsibility in managing logical addressing information and make sure that it is correctly sent to the right destination. The direct data packet generated by Network Layer using information that is stored in a table known as routing table.
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. It fills the destination IPv4 Address as the Target Protocol Address. The Target Hardware Address will be left blank, since the machine is trying to find that. Step 3: The source broadcast the Address Resolution Protocol (ARP) request message to the local network. Step 4: The message is received by each device on the LAN since it is a broadcast.
For example, instead of directly calling a system I/O routine, a thread calls an application-level I/O jacket routine. Within this jacket routine is code that checks to determine if the I/O device is busy. If it is, the thread enters the Blocked state and passes control (through the threads library) to another thread. When this thread later is given control again, the jacket routine checks the I/O device
17. B. Two TCP/IP data-link protocols are Ethernet and PPP. C. Data-link protocols define addresses that identify devices connected to the underlying physical link. 18.
Special Identity: I. Placeholder for a collection of users with a similar characteristic. 5. Authentication: C. Confirmation of a user’s identity. 6. Elevation Prompt: H. Displayed when an administrator requires administrative access.
Is there a firewall configured on your computer, is your firewall block ing ports, if you turn off the firewall does it resolve your problem? If not move onto the Network Layer; can you ping your default gateway, are your IP settings correct, can you trace a well-known IP/DNS address/URL, and finally has your network adaptor b een assigned an APIPA address? You then move to the data link layer. Is the light lit on your network interface card, is your NIC inserted/installed correctly, is the NIC d isabled in the device 4.4 review 1. The divide-and-conquer
The Windows 7 command-line utility that can tell you if the TCP/IP stack of another system on the network is functioning normally is called Ping.exe. 7. The Windows 7 command-line utility that enables you to generate DNS request messages and then transmit them to specific DNS servers on the network is called Nslookup.exe. 8. Most networks use Dynamic Host Configuration Protocol to dynamically assign addresses and configure computers to use them.
Determine whether port expanders are made for specific types of computers, or if they generic devices that will work with any computer. 4. You should also discuss the possible advantages and disadvantages of using a port expander. Required Resources In addition to having read Chapter 4 to become familiar with the different buses available on the motherboard, you will need to search the Internet for information on port expanders. Submission Specifications Submit the results of your work using the following specifications: File Format: Microsoft Word (.doc /.docx) Length: 1-2 pages Font: Arial 10-point Line Spacing: Double Self-Assessment Checklist The following checklist will help you prepare for the graded activity and/or assess the deliverable(s) as you prepare to submit them.
M1- produces a report comparing the benefits and disadvantages of Peer-To-Peer network and Client/ server network. In this report I will be talking about client/server and peer-2-peer system. I will give a basic definition with a suitable image of each of the system and also I will be stating the advantages and the disadvantages of both of the systems. At the end I will compare both of the system and then give the conclusion to finish my project. Client server Client server is when there is more than one computer is in a network with a server where all information comes through from.