COMPUTER EDUCATION TECHNIQUES, INC. (WEBLOGIC_SVR_ADM ) SA:

Transcription

1 In orer to lern whih questions hve een nswere orretly: 1. Print these pges. 2. Answer the questions. 3. Sen this ssessment with the nswers vi:. FAX to (212) Or. Mil the nswers to the following ress: Client ontt: SYS-ED PO Box 1213 New York, NY Nme: Compny: Aress: City, Stte, Zip: Phone Numer: Fx Numer: E-mil: COMPUTER EDUCATION TECHNIQUES, INC. (WEBLOGIC_SVR_ADM ) SA: Pge 1

2 1. The two primry luster servies provie y WeLogi Server re: n. HTTP Session Stte Clustering. Time Servie Clustering. Ojet Clustering. Event Clustering 2. When pkging the We Applition DefultWeApp for eployment into the WeLogi server, the home n remote interfes of the Enterprise Bens use y the servlets shoul resie in whih iretory:. DefultWeApp/META_INF/li. DefultWeApp/WEB_INF/li. DefultWeApp/WEB_INF/lsses. DefultWeApp/lsses 3. Whih of the following sttements re true regring MDBs (Messge Driven Bens) on version 6.0 of WeLogi Applition Server?. MDBs support onurrent proessing for oth Topis n Queues.. MDBs support onurrent proessing for only Topis.. MDBs support onurrent proessing for only Queues.. MDBs support onurrent proessing for neither Topis nor Queues. 4. Whih of the following re reommene prties to e performe in the ejpssivte() metho of stteful session en?. Close ny open resoures, like tse onnetions.. All non-trnsient, non-serilizle fiels(exept some speil types) shoul e set to null.. All trnsient fiels shoul e set to null.. Mke ll tse onnetion referene fiels trnsient. 5. An instne of stteful session EJB when esse simultneously from more thn one lient on the sme VM results in RemoteExeption or EJBExeption. In sitution when the lient is Servlet thre, whih of the following tehniques n e use to voi RemoteExeption/EJBExeption?. It is not possile.. Store the referene to the EJB instne s n instne vrile of Servlet lss.. Store the referene to the EJB instne s lol vrile of Servlet lss.. Mke the Servlet lient to e remote inste of internl to WeLogi server. 6. The Multist TTL setting for luster in the WeLogi Amin onsole sets whih of the following vlues?, n. Mximum time tken for multist messges to reh their finl estintion.. The numer of routers multist messge n pss through efore the pket n e isre.. The multist ress to e use y the messges sent from the luster.. Minimum time tken for rosting multist messge from the luster. COMPUTER EDUCATION TECHNIQUES, INC. (WEBLOGIC_SVR_ADM ) SA: Pge 2

3 7. Whih of the following lgorithms is use y the WeLogi server s the efult lo lning strtegy for lustere ojet stus when no lgorithm is speifie?. Roun-roin. Weight-se. Rnom. None of the ove. 8. Whih of the following sttements re true regring the ientity of two EJBs?. Two stteful session ens re ientil if their t ttriutes re ientil.. Two stteful session ens re ientil if their session ontexts re equl.. Two stteless session ens re ientil if their session ontexts re equl.. Two entity ens re ientil if they hve sme the primry key, ut ifferent home interfe. 9. In the WeLogi server, if stteless session en instnes re getting frequently rete n remove, performne n e improve y setting high vlue for whih of the following?. mx-ens-in-free-pool. mx-ens-in-he. mx-ens-in-memory. mx-stteless-ens-in-he 10. Whih of the following ttriutes in the Monitoring t for JDBC onnetion pool in the Aministrtive onsole inites how mny lients re urrently witing for onnetion?. Witers. Connetions high. Clients. Wit seons high 11. The MxPostTimeSes ttriute set in the Aministrtion onsole uner Servers or virtul hosts setion orrespons to whih of the following?. The mount of time tht WeLogi server wits etween reeiving hunks of t in n HTTP POST.. The totl mount of time tht WeLogi server spens reeiving HTTP POST t.. The time spent y WeLogi server to post t to other servers in the luster.. The numer of ytes of t reeive in POST from single request. 12. A lient wnts to preserve the referene to the EJBHome ojet of n enterprise en instne n use it lter. Whih of the following n e serilize for this purpose?. Hnle. HomeHnle. EJBHomeHnle. HomeOjet COMPUTER EDUCATION TECHNIQUES, INC. (WEBLOGIC_SVR_ADM ) SA: Pge 3

4 13. Mth the EJB funtions with the equivlent funtionlity in SQL: A ejstore() 1. INSERT B. ejlo() 2. UPDATE C. ejcrete() 3. SELECT. A->1, B->2, C->3. A->2, B->1, C->3. A->1, B->3, C->2. A->2, B->3, C->1 14. A lient invokes metho on stteful session en instne eploye in the WeLogi server. While the metho exeution is in progress nother metho ll rrives on the server. Wht will e the result?. RemoteExeption is thrown if the vlue of onurreny-strtegy property is flse.. EJBExeption is thrown if the vlue of onurreny-strtegy property is flse.. The EJB ontiner loks the onurrent metho ll n llows it to proee when the previous ll hs omplete if the vlue of llow-onurrent-lls is true.. In ll ses, RemoteExeption is thrown. 15. Whih of the following is NOT true out eploying EJBs in the WeLogi server?. The welogi/onfig/exmples/pplitions iretory ts s n utomti eployment iretory for EJB 2.0.jr files n EJB.jr eployment iretories.. The utomti reeployment feture of the WeLogi server n only e reeploye on EJB's implementtion lsses; it nnot e reeploye on n EJB's puli interfes.. Before eploying pkge jr file ontining unompile EJB lsses n interfes, the welogi.ej hs to e use on the pkge.jr file to generte WeLogi server ontiner lsses.. All of the ove sttements re true. 16. Whih of the following re vli reltionships etween JMS ojets in the WeLogi server?. A single JMS store n support multiple JMS servers.. Multiple onsumers my onsume from the sme queue, ut multiple prouers my not sen to the sme queue.. Multiple JMS servers my exist on one WeLogi 6.0 server.. A JMS server n e eploye on only one server. 17. Whih of the following is NOT true out the seurity implementtion in the WeLogi server? n. Servlets, JSPs, EJBs, RMI ojets, n Jv pplitions use the Jv Authentition n Authoriztion Servie to uthentite WeLogi server.. The efult seurity relm in WeLogi server is the File relm.. The efult uthentition sheme for WeLogi server is two-wy uthentition.. An Aministrtion server my ontin onfigurtion informtion for one WeLogi server or luster of WeLogi servers. COMPUTER EDUCATION TECHNIQUES, INC. (WEBLOGIC_SVR_ADM ) SA: Pge 4

5 18. For EJB pplitions with en-mnge trnstion emrtions, whih is use y the lient to get referene to the UserTrnstion ojet for the WeLogi server omin?. JTA. JNDI. JMS. JMX 19. Whih is true out the trnstion support in the WeLogi server:. WeLogi server llows trnstions to e terminte only y the lient tht rete the trnstion.. WeLogi server oes not support multithree trnstionl lients.. A lient or server ojet nnot invoke methos on n ojet tht is prtiipting in nother trnstion.. WeLogi server supports Neste Trnstions. 20. Whih progrms n e rete using the ZAC Pulish Wizr tool:. Instller. Deployer. Bootstrp. Pkger 21. A stteful session implemente on the SessionSynhroniztion interfe is eploye on the WeLogi server. Whih of the following llk methos my e invoke on the en:. eforebegin. fterbegin. eforecompletion. ftercompletion 22. The home of Prout CMP entity en hs finer metho, whih returns n Enumertion of ll the prouts whose prie flls elow ertin vlue, whih is psse s the metho rgument. If there re no prouts in the tse to mth this riteri, wht will e the result of ll to this finer metho:. EJBExeption is thrown.. OjetNotFounExeption is thrown.. NoSuhEntityExeption is thrown.. An empty enumertion is returne. 23. Whih is the only metho efine in the jvx.ej.hnle interfe: n n, n. getejbhome. getejbojet. getprimrykey. gethomehnle COMPUTER EDUCATION TECHNIQUES, INC. (WEBLOGIC_SVR_ADM ) SA: Pge 5

6 24. In CORBA, whih of the following files generte y the "iltojv" ompiler must e ompile efore running the server pplition: n. Only the Holer Clsses.. Only the Helper n Holer Clsses.. The implementtion lss(es) written y the user to provie oy to the methos efine in the interfe lss.. All iltojv generte files (stus, skeletons, helper, holer n interfe lsses). 25. Whih re enefits of MDB (Messge Driven Bens) in reltion to stnr JMS onsumers? n. In se of MDB, the eveloper will nee to rete MessgeListener lss tht utilizes server-wie session pool.. WeLogi server ontiner provies stnr EJB servies to MDBs.. MDBs enefit from the write-one, eploy-nywhere prigm of EJBs.. MDBs n e ssoite with multiple Messging Queues or Topis unlike stnr JMS. COMPUTER EDUCATION TECHNIQUES, INC. (WEBLOGIC_SVR_ADM ) SA: Pge 6