ccna 200 301 practice exam

ccna 200 301 practice exam.The bold text section is a fairly long command containing several parameters, as follows. -v2c :The version of SNMP to use.-ccommunity :SNMP password, referred to as the group string.10250.250.14 :The IP address of the device being monitored.3.6.1.4.1.9.2.1.58.0 :Digital object identifier (OID) for MIB variables o12.2 Base Content 395 The last line is the response. A short version of the MIB variable is output. The actual value at that MIB location is then given - in this case a 5-minute exponential moving average of the CPU busy percentage (11%). The tools in Example 19-1 give a few insights into the mechanisms underlying SNMP's work. However, the use of long MIB variable names (such as 1.3.6.141.9.258.0) is a real problem for the average user. Typically, network management products used by network operators (such as Cisco Prime) include easy-to-use graphical interfaces, and the naming of all MIB data variables is invisible to the typical user.Configuring SNMP Version 2cThe three main SNMP versions used over the years have been version 1, version 2c, and version 3. Because version 1 is so old and hard to see in today's networks, this article concentrates on version 2c and version 3.SNMP version 2c has a number of improvements over the first version. These include a number of improvements to the messaging system to enable more efficient retrieval of large amounts of statistics from devices. Unfortunately, only a few of these can be done in a secure area.SNMP version 1 and SNMP version 2c utilize what are called SNMP communitystrings to authenticate access to MIB objects. These communitystrings are nothing more than plaintext passwords. Recently, plaintext passwords have been considered an insecure mechanism because they are very vulnerable to interceptors (man-in-the-middle), and such packets are very easy to intercept and thus much less secure.