Câu 13: JN0-696: Juniper Networks Certified Support Professional Security (JNCSP-SEC)

-- Exhibit --user@host> show security flow session interface ge-0/0/10.0Session ID. 29, Policy name: to-infrastructure/4, Timeout: 1250, ValidResource information : FTP ALG, 1, 0In: 10.1.1.213/61892 --> 10.2.2.20/21;tcp, If: ge-0/0/8.0, Pkts: 25, Bytes: 1242Out: 10.2.2.20/21 --> 10.1.1.213/61892;tcp, If: ge-0/0/10.0, Pkts: 18, Bytes: 1278Total sessions: 1 -user@host> show interfaces ge-0/0/10 | match zoneSecurity: Zone: infrastructure -user@host> show interfaces ge-0/0/8 | match zoneSecurity: Zone: finance -user@host> show configuration security policies from-zone infrastructure to-zone finance user@host> show log flow-traceoptionsJun 13 14:44:01 14:44:01.059151:CID-0:RT:SPU received an event,type 112, common:3Jun 13 14:44:01 14:44:01.059151:CID-0:RT:Rcv packet with rtbl idx 0, cos 0Jun 13 14:44:01 14:44:01.059151:CID-0:RT:SPU processing spu_flushed_pak, flag: 0x2, mbuf:0x423f6100Jun 13 14:44:01 14:44:01.060343:CID-0:RT:10.2.2.20/20->10.1.1.213/64313;6> matched filter filter2:Jun 13 14:44:01 14:44:01.060473:CID-0:RT:packet [64] ipid = 1614, @423fd19cJun 13 14:44:01 14:44:01.060473:CID-0:RT:---- flow_process_pkt: (thd 3): flow_ctxt type 15, common flag 0x0, mbuf 0x423fcf80, rtbl_idx = 0Jun 13 14:44:01 14:44:01.060473:CID-0:RT: flow process pak fast ifl 71 in_ifp ge-0/0/10.0Jun 13 14:44:01 14:44:01.060473:CID-0:RT: ge-0/0/10.0:10.2.2.20/20->10.1.1.213/64313, tcp, flag 2 synJun 13 14:44:01 14:44:01.060473:CID-0:RT: find flow: table 0x49175b08, hash 34391(0xffff), sa 10.2.2.20, da 10.1.1.213, sp 20, dp 64313, proto 6, tok 8Jun 13 14:44:01 14:44:01.060473:CID-0:RT: no session found, start first path. in_tunnel - 0, from_cp_flag - 0Jun 13 14:44:01 14:44:01.060473:CID-0:RT: flow_first_create_sessionJun 13 14:44:01 14:44:01.060473:CID-0:RT:-jsf : preset sess plugin info for session 31Jun 13 14:44:01 14:44:01.060473:CID-0:RT: Allocating plugin info block for plugin(21)Jun 13 14:44:01 14:44:01.060473:CID-0:RT:[JSF] set ext handle 0x46389be8 for plugin 21 on session 31Jun 13 14:44:01 14:44:01.060473:CID-0:RT:asl_usp_get_l3_out_ifp_out_tunnel ASL IPV4 out_ifp = ge-0/0/8.0 for dst:10.1.1.213 in vr_id:0Jun 13 14:44:01 14:44:01.060473:CID-0:RT:SPU invalid session id 00000000Jun 13 14:44:01 14:44:01.060473:CID-0:RT: jsf drop pak pid 21, jbuf 0x4fcd7038, release hold 0, sess_id 0Jun 13 14:44:01 14:44:01.060761:CID-0:RT: After jsf gate hit. sid 0xfb39, pid 0, cookie 0x1f, jbuf 0x15. rc = 1Jun 13 14:44:01 14:44:01.060761:CID-0:RT:RM populated xlate info for nsp2: 10.1.1.213/64313->10.2.2.20/20out_ifp = ge-0/0/8.0, out_tunnel = 0x0Jun 13 14:44:01 14:44:01.060761:CID-0:RT: flow_first_in_dst_nat: in 0/10.0>, out 0/8.0> dst_adr 10.1.1.213, sp 20, dp 64313Jun 13 14:44:01 14:44:01.060761:CID-0:RT: flow_first_in_dst_nat: bypassed by RMJun 13 14:44:01 14:44:01.060761:CID-0:RT: flow_first_rule_dst_xlate: bypassed by RMJun 13 14:44:01 14:44:01.060761:CID-0:RT: flow_first_routing: bypassed by RMJun 13 14:44:01 14:44:01.060761:CID-0:RT: flow_first_policy_search: bypassed by RMJun 13 14:44:01 14:44:01.060761:CID-0:RT: flow_first_reverse_mip: bypassed by RMJun 13 14:44:01 14:44:01.060761:CID-0:RT: flow_first_src_xlate: bypassed by RMJun 13 14:44:01 14:44:01.060761:CID-0:RT: flow_first_get_out_ifp: bypassed by RMJun 13 14:44:01 14:44:01.060761:CID-0:RT:is_loop_pak: No loop: on ifp: ge-0/0/8.0, addr: 10.1.1.213, rtt_idx:0Jun 13 14:44:01 14:44:01.060761:CID-0:RT:[JSF]Normal interest check. regd plugins 18, enabled impl mask 0x0Jun 13 14:44:01 14:44:01.060761:CID-0:RT:-jsf int check: plugin id 2, svc_req 0x0, impl mask 0x0. rc 4Jun 13 14:44:01 14:44:01.060761:CID-0:RT:-jsf int check: plugin id 3, svc_req 0x0, impl mask 0x0. rc 4Jun 13 14:44:01 14:44:01.060761:CID-0:RT:-jsf int check: plugin id 5, svc_req 0x0, impl mask 0x0. rc 4Jun 13 14:44:01 14:44:01.060761:CID-0:RT:-jsf int check: plugin id 6, svc_req 0x0, impl mask 0x0. rc 4Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf int check: plugin id 7, svc_req 0x0, impl mask 0x0. rc 4Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf int check: plugin id 8, svc_req 0x0, impl mask 0x0. rc 4Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf int check: plugin id 14, svc_req 0x0, impl mask 0x0. rc 4Jun 13 14:44:01 14:44:01.060975:CID-0:RT:+++++++++++jsf_test_plugin_data_evh: 3Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf int check: plugin id 15, svc_req 0x0, impl mask 0x0. rc 4Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf int check: plugin id 21, svc_req 0x0, impl mask 0x0. rc 3Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf int check: plugin id 22, svc_req 0x0, impl mask 0x0. rc 4Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf int check: plugin id 25, svc_req 0x0, impl mask 0x0. rc 4Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf int check: plugin id 26, svc_req 0x0, impl mask 0x0. rc 2Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf int check: plugin id 27, svc_req 0x0, impl mask 0x0. rc 4Jun 13 14:44:01 14:44:01.060975:CID-0:RT:[JSF]Plugins(0x0, count 0) enabled for session = 4294967296, impli mask(0x0), post_nat cnt 31 svc req(0x0)Jun 13 14:44:01 14:44:01.060975:CID-0:RT:[JSF]c2s order list:Jun 13 14:44:01 14:44:01.060975:CID-0:RT: 21Jun 13 14:44:01 14:44:01.060975:CID-0:RT:[JSF]s2c order list:Jun 13 14:44:01 14:44:01.060975:CID-0:RT: 21Jun 13 14:44:01 14:44:01.060975:CID-0:RT: service lookup identified service 79. Jun 13 14:44:01 14:44:01.060975:CID-0:RT: flow_first_final_check: in 0/10.0>, out 0/8.0>Jun 13 14:44:01 14:44:01.060975:CID-0:RT:flow_first_complete_session, pak_ptr: 0x48ae5ba0, nsp: 0x4c38e248, in_tunnel: 0x0Jun 13 14:44:01 14:44:01.060975:CID-0:RT:construct v4 vector for nsp2Jun 13 14:44:01 14:44:01.060975:CID-0:RT: existing vector list 82-454e5c90. Jun 13 14:44:01 14:44:01.060975:CID-0:RT: Session (id:31) created for first pak 82Jun 13 14:44:01 14:44:01.060975:CID-0:RT: flow_first_install_session======> 0x4c38e248Jun 13 14:44:01 14:44:01.060975:CID-0:RT: nsp 0x4c38e248, nsp2 0x4c38e2c8Jun 13 14:44:01 14:44:01.060975:CID-0:RT: make_nsp_ready_no_resolve()Jun 13 14:44:01 14:44:01.060975:CID-0:RT: route lookup: dest-ip 10.2.2.20 orig ifp ge-0/0/10.0 output_ifp ge-0/0/10.0 orig-zone 8 out-zone 8 vsd 0Jun 13 14:44:01 14:44:01.060975:CID-0:RT: route to 10.2.2.20Jun 13 14:44:01 14:44:01.060975:CID-0:RT:Doing jsf sess create notifyJun 13 14:44:01 14:44:01.060975:CID-0:RT:flow_delete_gate: invoked for gate 0x4c077c24 [id 1000003]Jun 13 14:44:01 14:44:01.060975:CID-0:RT:gate_start_ageout: ageout started for gate 0x4c077c24Jun 13 14:44:01 14:44:01.060975:CID-0:RT: jsf sess id ignore. sess 31, pid 21, dir 1, st_buf 0x0. Jun 13 14:44:01 14:44:01.060975:CID-0:RT: jsf sess id ignore. sess 31, pid 21, dir 2, st_buf 0x0. Jun 13 14:44:01 14:44:01.060975:CID-0:RT:All plugins have ignored session :31Jun 13 14:44:01 14:44:01.060975:CID-0:RT: existing vector list 2-454ecbd0. Jun 13 14:44:01 14:44:01.060975:CID-0:RT: existing vector list 2-454ecbd0. Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf create notify: plugin id 21. rc 3Jun 13 14:44:01 14:44:01.060975:CID-0:RT:flow_do_jsf_notify_session_creation(): natp(0x4c38e248): 0 SHORT_CIRCUITED. 0x00000000. Jun 13 14:44:01 14:44:01.060975:CID-0:RT:no need update haJun 13 14:44:01 14:44:01.060975:CID-0:RT:Installing c2s NP session wingJun 13 14:44:01 14:44:01.060975:CID-0:RT:Installing s2c NP session wingJun 13 14:44:01 14:44:01.061475:CID-0:RT: flow got session. Jun 13 14:44:01 14:44:01.061475:CID-0:RT: flow session id 31Jun 13 14:44:01 14:44:01.061475:CID-0:RT: vector bits 0x2 vector 0x454ecbd0Jun 13 14:44:01 14:44:01.061475:CID-0:RT: tcp flags 0x2, flag 0x2Jun 13 14:44:01 14:44:01.061475:CID-0:RT: Got syn, 10.2.2.20(20)->10.1.1.213(64313), nspflag 0x1021, 0x20Jun 13 14:44:01 14:44:01.061475:CID-0:RT:mbuf 0x423fcf80, exit nh 0xa0010Jun 13 14:44:01 14:44:01.061475:CID-0:RT: ----- flow_process_pkt rc 0x0 (fp rc 0)-- Exhibit --Click the Exhibit button. While troubleshooting a device, you see that it is permitting packets for which it appears there is no policy. Using the information in the exhibit, what is causing this behavior?

1. A. It is permitted due to an ALG. — đáp án hiện tại
2. B. It is permitted due to a stale policy.
3. C. It is permitted due to a global policy.
4. D. It is permitted due to a default permit policy.