Snmp Operations — Test 1

Correct Answer: A. A. Trap
Explanation: It is very necessary to report problems occurring in a network to its respective network manager. Thus SNMP Trap messages are defined as alert messages that are sent to the network manager by the agent. This helps the network manager to take necessary actions on time.

Correct Answer: C. C. It is used to retrieve snmp object variables
Explanation: In Simple Network Management Protocol (SNMP) GET operations are used for retrieving SNMP object variables. GET, GETNEXT, GETBULK etc. are some of the SNMP message PDUs used for retrieving SNMP object variables.

Correct Answer: B. B. False
Explanation: SNMP is an asynchronous type of protocol. It means that messages are sent only when a problem is reported. This is a disadvantage.

Correct Answer: A. A. Lexicographic
Explanation: Lexicographic, Numerical, Collation and Alphabetical are conventional ways of arranging alphabets or objects in an order. Thus in SNMP we use Lexicographic convention for retrieval of objects.

Correct Answer: B. B. False
Explanation: Security in SNMP is managed by defining community, and only members belonging to the same community can communicate with each other. A manager can belong to multiple communities and can manage multiple domains.

Correct Answer: D. D. Generic-trap, specific-trap, time-stamp
Explanation: SNMP Traps are alert messages used to notify the manager or central device of any significant event. There are three types of traps- generic-trap, specific-trap, and time-stamp. These types are application specific.

Correct Answer: B. B. In order to reduce traffic
Explanation: SNMP messages are exchanged using a connectionless UDP transport protocol in order to reduce traffic. However the mechanisms of SNMP are suitable for a variety of protocols.

Correct Answer: C. C. Application
Explanation: RFC 1157 specifies the implementation of Simple Network Management Protocol. Thus entities residing in management stations and network elements are called SNMP application entities.

Correct Answer: A. A. Community profile
Explanation: The pairing of the two entities is called SNMP community. A management agent may be permitted to view only a subset of the network element’s managed objects. This is called the community MIB view. In addition to MIB view, each community name is also assigned an SNMP access mode, either READ-ONLY or READ-WRITE. A pairing of SNMP MIB views with an SNMP access code is called a community profile.

Correct Answer: B. B. False
Explanation: There are three types of SNMP Traps. Those are generic-trap, specific-trap, and time-stamp. The specific-trap is a specific code and is generated even when an enterprise-specific trap is not present.