11.2.6 Network Management with SNMP

Which of the following is true about a community string?

A community string identifies devices under the same administrative control. Agents and the manager are configured to communicate with each other using the community strings. A community string identifies a group of devices under the same administrative control. The community string is like a password because it limits access to only authorized processes or queries. However, it's not a password; it's simply a value configured on each device.

Which of the following improvements to SNMP are included in version 3? (Select two.)

Agent and manager authentication SNMP message encryption NMPv3 adds authentication for agents and managers, encryption, and message integrity to ensure that data is not altered in transit. SNMPv3 improvements do not include the use of SFTP for transferring SNMP data or community name hashing.

What does SNMP use to identify a group of devices under the same administrative control?

Community strings Agents and the manager are configured to communicate with each other using the community strings. A community string identifies a group of devices under the same administrative control. The community string is like a password because it limits access to only authorized processes or queries. However, it's not a password; it's simply a value configured on each device. Devices with different community names are unable to send SNMP messages to each other.

You have been using SNMP on your network for monitoring and management, but you're concerned about the security of this configuration. What should you do to increase security in this situation?

Implement version 3 of SNMP Simple Network Management Protocol (SNMP) is a protocol designed for managing complex networks. SNMP lets network hosts exchange configuration and status information. The original version of SNMP has several vulnerabilities. For added security, implement version 3.

Which of the following does an agent send to the manager to confirm the receipt of a transmission?

Inform Informs are sent to the manager to confirm the receipt of a transmission.

What is the name of the computer that queries agents and gathers responses by sending messages? MIB

Manager The manager queries agents and gathers responses by sending messages.

Because of an unexplained slowdown on your network, you decide to install monitoring software on several key network hosts to locate the problem. You will then collect and analyze the data from a central network host. Which protocol will the software use to detect the problem?

SNMP SNMP (Simple Network Management Protocol) is used to track network statistics.

Which protocol uses traps to send notifications from network devices?

SNMP Simple Network Management Protocol (SNMP) lets network hosts exchange configuration and status information. This information can be gathered by management software and used to monitor and manage the network. A trap is an event configured on an agent. When the event occurs, the agent logs details regarding the event.

When an event occurs, the agent logs details regarding the event. What is this event called?

Trap A trap is an event configured on an agent. When the event occurs, the agent logs details regarding the event

Which SNMP component uses GETNEXT messages to navigate the MIB structure?

Walk A walk uses GETNEXT messages to navigate the MIB structure.