ORGANIZATION & INFORMATION MODELS
CHAPTER 5: SNMPv1 NETWORK MANAGEMENT — COMMUNICATION AND FUNCTIONAL MODELS
1>The SNMPv1 communication model defines the specifications of____ aspects of SNMP communication (3/4/5)______
2>The SNMPv1 communication model defines the specifications of following aspects of SNMP communication a: architecture
b: administrative model c: SNMP protocol d: SNMP MIB
Ans:__________ (a/b/c/d/all)
3>__________model defines data access policy (communication/administrative)
4>A manager can belong to multiple communities and thus can manage multiple domains.This is the__________
model (communication/administrative)
5>SNMP entities are grouped into __________module (SNMP SMI/SNMP MIB)
6>___________consists of communication between network management stations and managed network elements or objects (SNMP protocol/SNMP architecture)
7>___________is used to communicate information between the network management stations and the management agents in the elements (SNMP MIB/SNMP protocol)
8>Following are goals of the architecture in the original specifications of SNMP
a: it should minimize the number and complexity of the management functions realized by the management agent b: it should be flexible enough to allow expansion
c: the SNMP architecture should be independent of the architecture and mechanisms of particular hosts and gateways
Ans:___________ (a/b/c/all)
9>Only non-aggregate objects are communicated using SNMP (true/false)___________
10>___________is used for data transfer in SNMP (ASN.1/BER/both) 11>The SNMP manages the network with ____messages (3/4/5)_______
12>SNMP comprises following basic messages a: set
b: get c: trap
Ans:__________ (a/b/c/all)
13>_____&______messages are generated by the manager to retrieve data from network elements using the associated management agents (get-request/set-request/get-next-request/trap)
14>___________is used to initialize and edit the parameters of the network element (get-request/set-request) 15>___________is the response from the agent to get and set messages from the manager (get-next-request/get-response-request)
16>The number of unsolicited messages in the form of_________is limited to make the architecture simple and to minimize the traffic (get-request/set-request/get-next-request/trap)
17>There are__ types of traps (2/3/4)_________
18>Following are different types of traps a: generic trap
b: specific trap c: time stamp
Ans:___________ (a/b/c/all)
19>___________type consists of coldStart, warmStart, linkDown,linkUp,authenticationFailure, egpNeighborLoss and enterpriseSpecific (generic trap/specific trap/time stamp)
20>___________is a specific code and is generated even when an enterpriseSpecific trap is not present (generic trap/specific trap/time stamp)
21>___________is the time elapsed between the last initialization or reinitialization of the element and the generation of the trap (generic trap/specific trap/time stamp)
22>In RFC 1157,the entities that reside in the management stations and network elements are called SNMP___________ entities (protocol/application)
23>The peer processes, which implement the SNMP, and thus support the SNMP application entities are termed as__________ entities (protocol/MIB)
24>Application entity residing in the management station is also referred to as _____and the application entity residing in the element is also referred to as_____ (SNMP agent/SNMP manager)
25>The pairing of the SNMP manager and SNMP agent is called ___________ (SNMP view/SNMP community) 26>The authentication scheme is a filter module in the manager and in the agent (true/false)___________
27>A network element comprises many managed objects both standard and private (true/false)___________
28>A management agent may be permitted to view only a subset of the network element's managed objects. This is called___________ (SNMP community/community MIB view)
29>A pairing of the SNMP MIB view with the SNMP access mode is called___________ (SNMP community/community profile)
30>Each community name is assigned _______either READ-ONLY or READ-WRITE (SNMP MIB view/SNMP access mode) ____
31>___________is combination with the access mode of a managed object determines the operations that can be performed n the object by an agent (SNMP community/community profile)
32>The SNMP agent with ________access mode can perform all operations --get ,set and trap on objects (READ-ONLY/READ-WRITE)
33>If the SNMP agent has ___________access privilege, it can perform only get and trap operations on objects (READ-ONLY/READ-WRITE)
34>There are__ access privileges (3/4/5)_________
35> SNMP has following access privileges a: read only b: write only c: read write d: none Ans:___________ (a/b/c/d/all)
36>If the access mode is defined as________, that operand is available for all three operations--get,set and trap (read-only/read-write/write-only)___
37>___________access mode is used to set the value of MIB object by the network manager (read-only/read-write/write-only)
38>sysContact: read-write:: sysDescr:_____ (read-only/write-only)
39>A pairing of an SNMP community with an SNMP community profile is defined as___________ (community MIB view/SNMP access policy)
40>___________defines the administrative model of SNMP management (community MIB view/SNMP access policy)
41>The SNMP agent associated with the proxy policy is called________ (proxy agent/proxy server/either) 42>___________monitors a non-SNMP community with non-SNMP agent and then converts the objects and data to SNMP-compatible objects and data feed to an SNMP manager (SNMP agent/proxy agent)
43>SNMP agent:____:: Proxy agent:_______ (SNMP community/Non-SNMP community)
44>The peer processes, which implement hue SNMP, and thus support the SNMP application entities are called___________ entities (MIB/protocol)
45>An SNMP message consists of___________ (version identifier/community name/PDU/all)
46>An SNMP protocol entity is received on port ____on the host except for trap which is received on port_______
(143/144/161/162)
47>The maximum length of the protocol in SNMPv1 is ___________bytes (848/484) 48>A managed object is a scalar variable (true/false) ___________
49>The pairing of the variable and value is called___________ (variable binding/VarBind/Either) 50>Correct format of Get and Set Type PDUs (in order)
a: PDU type| RequestID |Error Status |VarBind1 name|
VarBind1 Value
b: PDU type| VarBind1 name|
VarBind1 Value| RequestID |Error Status Ans: ___________ (a/b/both)
51>In Get and Set type PDUs format ,______is used to indicate that an error occurred while _____is used to provide additional information on the error status (ErrorIndex/ErrorStatus)
52>The generic trap consists of___ types (5/6/7)________
53>______trap is not covered by the enterpriseSpecific trap (generic/specific)_____
54>SNMP operations comprise get and set messages from ____to ____,and get & trap messages from____ to_____
(manager/agent)
55>Correct format of Trap PDU (in correct order)
a: PDU Type| Enterprise | Agent address | Generic Trap type Timestamp | VarBind1 name| VarBind1 value| Specific trap type
b: PDU Type| Enterprise | Agent address | Generic Trap type | Specific trap type | Timestamp | VarBind1 name|
VarBind1 value
Ans:___________ (a/b/either) 56>Match the following
coldStart :failure of one of the communication link warmStart :one of the links has come up
linkDown :authentication failure linkUp :loss of EGP neighbor authenticationFailure :enterprise specific trap
egpNeighborLoss :sending protocol entity is reinitializing itself, agent configuration or protocol entity implementation not altered
enterpriseSpecific :sending protocol entity is reinitializing itself, agent’s configuration or protocol entity implementation may be altered
57>wrt Get-Request Operation for a System group, Arrange the following commands in correct sequence a: GetRequest (sysObjectID.0)
b: GetResponse (sysObjectID.0=enterprise.11.2.3.10.1.2) c: GetReques (sysDescr.0)
d: GetResponse (sysDescr.0="SunOS") Ans:___________ (cdba/cdab)
58>wrt Get-Next-Request Operation for a System group, Arrange the following commands in correct sequence a: GetNextRequest (sysDescr.0)
b: GetResponse (sysObjectID.0=enterprise.11.2.3.10.1.2) c: GetRequest (sysDescr.0)
d: GetResponse (sysDescr.0="SunOS") e: GetNextRequest (sysObjectID.0)
Ans:___________ (cdbae/cdabe)___________
59>Arrange the following numbers in lexographic order 1118 115 126 15 1 Ans:___________ (1 1118 126 115 15 /1 1118 115 126 15)
60>Get-next-request has following advantages
a: we dont need to know the object identifier of the next entity b: we do not know how many rows exist in the table
c: we can use it to build a MIB tree by repeating the request from any node to any node.This is called MIB walk Ans:___________ (a/b/c/all)
61>wrt Get-Next-Request operation for the MIB ,arrange the following commands in correct sequence a: GetNextRequest (B)
b: GetResponse (T.E.1.1) c: GetRequest (A) d: GetResponse (A) e: GetNextRequest (B) f: GetRespons (B)
Ans:___________ (cdeafb/cdefab)
62>___________is a management tool that can capture the packets going across a transmission medium (filter/sniffer)
63>Match the following
snmpInPkts :total number of messages from transport service that have tooBig errors snmpOutPkts :total number of messages delivered from transport service
snmpInBadVersions :total number of ASN.1 And BER errors
snmpInBadCommunityNames :total number of messages from transport service,not allowed operation by the sending community
snmpInBadCommunityUses :total number of messages from transport service that are of unknown community name
snmpInASNParseErrs :total number of messages from transport service that are of unsupported version
snmpInTooBigs :total number of messages delivered to transport service 64>Match the following
snmpInNoSuchNames :total number of messages from transport service that have 'noSuchName' errors snmpInBadValues :total number of messages from transport service that have redOnly errors snmpInReadOnlys :Total number of messages from transport service that have badValue errors snmpInGenErrs :total number of messages from transport service that have genErr errors snmpInTotalSetVars :Total number of successful Get-Request and Get-Next messages received snmpInTotalReqVars :total number of objects successfully altered by Set-Request message recieved snmpInGetRequests :total number of Get-Request PDUs accepted and processed
snmpInGetNexts :total number of Get-Next PDUs accepted and processed 65>Match the following
snmpInSetRequests :total number of Get-Response PDUs accepted and processed
snmpInGetResponses :total number of Set-Request PDUs accepted and processed snmpInTraps :total number of trap PDUs accepted and processed
snmpOutTooBigs :total number of SNMP PDUs generated for which error status is tooBig snmpOutNoSuchNames :total number of SNMP PDUs generated for which error status is noSuchName snmpOutBadValues :total number of SNMP PDUs generated for which error status is badalue snmpOutGenErrs :total number of SNMP PDUs generated for which error status is genErr 66>Match the following
snmpOutGetRequests :total number of SNMP Get-Request PDUs generated snmpOutGetNexts :override option to generate authentication failure traps snmpOutSetRequests :total number of SNMP trap PDUs generated
snmpOutGetResponses :total number of SNMP Get-Response PDUs generated snmpOutTraps :total number of SNMP Set-Request PDUs generated snmpEnableAuthenTraps :total number of SNMP Get-Next PDUs generated
67>Application functions are limited to network management in SNMP and not to the services provided by the network (true/false)___________
68>The OSI mode addresses ___areas of functions (4/5/6)________
69>The OSI mode addresses following areas of functions a: configuration b: fault
c: performance d: security e: accounting
Ans:___________ (a/b/c/d/e/all)
70>Performance counters are part of the SNMP agent MIB. It is the function of the SNMP __________to do the performance analysis (agent/manager)
71>___________model is protocol entity specifications addresses security function is basic SNMP (architecture/administrative)
72>___________function is not addressed by the SNMP model (administrative/accounting) 73>All management operations are done using_____ messages in SNMPv1 (3/4/5)______
74>All management operations are done using following messages in SNMPv1 a: get-request
b: get-next-request c: set-request d: get-response e: trap
Ans:___________ (a/b/c/d/e/all)
75>In q74,the first three messages are sent from _____to ______and the last two are sent by_____to ______
(manager/agent)
76>___________model deals with the administrative model structure and the five SNMP message PDU (administrative/communication)
77>___________model defines the community within which messages can be exchanged (administrative/communication)
ANSWERS
1>4 2>all
3>administrative 4>administrative 5>SNMP MIB 6>SNMP architecture 7>SNMP protocol 8>all
9>T 10>both 11>5 12>all
13>get-request, get-next-request 14>set-request
15>get-response-request 16>trap
17>3 18>all
19>generic-trap
20>specific-trap 21>time-stamp 22>application 23>protocol
24>SNMP manager ,SNMP agent 25>SNMP community
26>t 27>T
28>community MIB view 29>community profile 30>SNMP access mode 31>community profile 32>READ-WRITE 33>READ-ONLY 34>4
35>all 36>read-write 37>write-only 38>write-only
39>SNMP access policy 40>SNMP access policy 41>either
42>proxy agent
43>SNMP community, non-SNMP community 44>protocol
45>all 46>161,162 47>484 48>T
49>variable binding 50>a
51>ErrorStatus, ErrorIndex 52>7
53>specific-trap
54>manager to agent & vice versa 55>b
56>1-g 2-f 3-a 4-b 5-c 6-d 7-e 57>cdab
58>cdabe
59>1 1118 115 126 15 60>all
61>cdefab 62>sniffer
63>1-b 2-g 3-f 4-e 5-d 6-c 7-a 64>1-a 2-c 3-b 4-d 5-f 6-e 7-g 8-h 65>1-b 2-a 3-c 4-d 5-e 6-f 7-g 66>1-a 2-f 3-e 4-d 5-c 6-b 67>T
68>5 69>all 70>manger 71>administrative 72>accounting 73>5
74>all
75>manager to agent & vice versa 76>communication
77>administrative