This set of Computer Network Multiple Choice Questions & Answers (MCQs) focuses on “SNMP Operations”.
1. ________ types of messages are sent from the agent to the manager.
a) Trap
b) Get
c) Response
d) Request
View Answer
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.
2. What is the significance of the GET operation in SNMP?
a) It helps in receiving unsolicited messages
b) It is used for altering data variables
c) It is used to retrieve SNMP object variables
d) It is used for monitoring traffic
View Answer
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.
3. SNMP can be considered as a synchronous type of protocol.
a) True
b) False
View Answer
Explanation: SNMP is an asynchronous type of protocol. It means that messages are sent only when a problem is reported. This is a disadvantage.
4. In SNMP, objects are retrieved using ________ convention.
a) Lexicographic
b) Collation
c) Alphabetical
d) Numerical
View Answer
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.
5. A manager cannot belong to multiple communities.
a) True
b) False
View Answer
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.
6. SNMP Trap messages comprise of three types of traps, those are_______, _______ and _______
a) dynamic-trap, static-trap, dielectric-trap
b) symmetric-trap, asymmetric-trap, time-stamp
c) numeric-trap, alphabetic-trap, alphanumeric-trap
d) generic-trap, specific-trap, time-stamp
View Answer
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.
7. Why SNMP messages are exchanged using a connectionless UDP transport protocol?
a) In order to be consistent with the complexity of the SNMP model
b) In order to reduce traffic
c) In order to make the process slower
d) In order to use a heavyweight mechanism for exchanging messages
View Answer
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.
8. In RFC 1157 the entities residing in management stations and network elements are called SNMP ___________ entities.
a) communication
b) protocol
c) application
d) administrative
View Answer
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.
9. A pairing of SNMP MIB views with an SNMP access code is called a _________
a) community profile
b) management profile
c) communication profile
d) performance profile
View Answer
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.
10. Specific-trap cannot be generated when an enterprise-specific trap is not present.
a) True
b) False
View Answer
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.
11. ____________ is a management tool that can capture packets going across a transmission medium.
a) Sniffer
b) Server
c) Router
d) Bridge
View Answer
Explanation: Sniffer is a packet sniffing tool. It is a management tool that sniffs or captures data flowing through the computer network in real time. Whereas Server, Router and Bridge are network components that have totally different applications.
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