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- CCNA Routing and Switching 200-125
146.
What type of SNMP message is sent to a network management station when an
interface goes down?
- A.Get-request message
- B.Get-response message
- C.Set-request message
- D.Trap message
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
| Trap messages are sent from the network device to the SNMP network management station when an event has triggered over a set threshold on the device. An example of an event to be trapped is an interface going down or a restriction by port security. |
147.
Which of the following is a hierarchical set of variables that make up the
management information base?
- A.Object IDs
- B.The SNMP community
- C.The SNMP agent
- D.SNMP messages
- Answer & Explanation
- Report
Answer : [A]
Explanation :
Explanation :
| Object IDs are the variables that make up the management information base. Each object has a unique ID in a hierarchical format in the form of a tree. As an example, 1.3.6.1.4.9.2.1.58.0 is the object that holds the router CPU utilization variable. |
148.
What is the difference between trap messages and inform messages for SNMP?
- A.Trap messages are always encrypted.
- B.Inform messages do not use acknowledgment.
- C.Trap messages always use acknowledgment.
- D.Inform messages always use acknowledgment.
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
| Inform messages differ from trap messages with respect to acknowledgment. Trap messages employ a best effort delivery utilizing UDP. Inform messages employ acknowledgment; while they use the User Datagram Protocol (UDP), they rely on the Application layer for acknowledgment. |
149.
Which security method does SNMP version 2c employ?
- A.Encryption
- B.User authentication
- C.Community strings
- D.Message integrity
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
| SNMP version 2c is identical to SNMP version 1 with respect to security. Both transmit information in clear text and use the security of community strings to authenticate users for access to information. |
150.
Which command will configure the SNMP agent with a read-only community of
“snmpreadonly”?
- A.Switch(config)#snmp-agent community snmpreadonly ro
- B.Switch(config)#snmp-server snmpreadonly ro
- C.Switch(config)#ip snmp-server community snmpreadonly ro
- D.Switch(config)#snmp-server community snmpreadonly read-only
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
| The command snmp-server community snmpreadonly ro will configure the SNMP agent with a community of “snmpreadonly” and set it to read only. |
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