Chapter Seven Network Management Technology
Test sites 1 , Windows basic management
Test method [analysis]
This test center test method is able to identify basic Windows meaning and role of the system, common commands
Points [analysis]
1 , you need to be familiar with common commands, such as the IPCON fi G , the ping , tracert , netstat , Router Print , nslookup
2 , IPCON Fi G can display the current TCP / IP content network configuration
. 3 , of ping test communication network
. 4 , the tracert may display the routing path
5 , netstat can display the Transmission Control Protocol TCP (incoming and outgoing), routing tables, many network connections and network protocol network interface statistics
. 6 , Router Print display routing table, and the netstat -R & lt equivalents
7 , nslookup queries the Domain Name System ( DNS ) to obtain the domain name or IP address mapping or any other specific DNS records.
Remarks [coaching]
Operating class knowledge, often in the morning test questions, problems occasionally involve the afternoon. The computer can recommend the CMD enter these commands in a better understanding of
Test sites 2 , Linux basic management
Test method [analysis]
This test center test method is able to identify basic linux the system, meaning and role of common command and directory
Points [analysis]
1 , need to be familiar with common commands, such as cd , LS , cp , RM , mv , CAT , etc.
2 , need to be familiar with common directories such as / , / etc , / dev , / Home , / root , / tmp , / var , / bin , etc.
Remarks [coaching]
Operating class knowledge, many questions involving morning, afternoon and occasionally to test. linux operating system if not previously had contact, the content is more difficult to manage solution. Suggestions can be deepened by doing for years Zhenti way linux understanding of the various directories and command, not shining table rote.
Test sites 3 , the network management protocol SNMP
Test method [analysis]
This test center to test the basic method is to investigate the SNMP protocol basic concepts
Points [analysis]
1 , comprises a network management station, a managed device and a network management protocol
2 , the network management protocol related to the 5 telegrams.
3 , the role of each message follows:
When the acquired information to the management station is managed device may send get-request packet and the get-next-request packet when the station set when certain parameters are managed device information may be transmitted set-request packets
When the three types of response packets managed device, sending response packets
When the managed device voluntarily submit information to the management station of some important event, send trap messages
4 , only the trap packets to use udp of 162 port, the other 4 telegrams using udp of 161 ports
Remarks [coaching]
Conceptual knowledge, we can understand
Test sites 4 , the network storage
Test method [analysis]
This test center test method is able to distinguish between basic DAS , NAS , SAN
Points [analysis]
1 , direct attached storage ( the DAS ) is connected directly to a digital access its computer memory, rather than the memory access over a computer network. Such as our personal computers, a common one server can be considered DAS
2 , network attached storage ( the NAS ) is connected to a network file-level computer data storage server. If you want to use Ethernet to access file-level data can be used NAS
3 , a storage area network ( a SAN ) is a computer network that provides access combined block-level data storage. If you want to use a Fiber Channel access block series data can be used SAN
Remarks [coaching]
Conceptual knowledge, we can understand