Which of the following allows multiple applications to share a single operating system resource？（） 

A . Serial connection B . Secure Shell C . RADIUS D . Simple Network Management Protocol E . HTTP F . Telnet

A . ff02：a：b：c：：l/64 B . 2001：aaaa： 1234：456c： 1/64 C . 2001：000a：lb2c：：/64 D . 2fff：f：f：f：：f/64 E . ff02：33ab：l：32：：2/128 F . 2001：bad：2345：a：b：：cef/128

A . Database datafiles B . Control files C . Online redo logs D . Database pfiles E . Archived redo log

A . SELECT UNIQUE dept FROM staff B . SELECT DISTINCT dept FROM staff C . SELECT (dept) UNIQUE FROM staff D . SELECT (dept) DISTINCT FROM staff

A . Application monitoring has been configured B . Only disk heartbeat networks have been used C . Cluster nodes are attached to two IP networks D . Resource Group dependencies have been configured

A . A routed port does not run STP or DTP B . A routed port is considered to be in a down state if it is not operational at both Layer 1 andLayer 2 C . An SVI is considered to be in a down state if it is not operational at both Layer 1 and Layer 2 D . An SVI is considered to be in a down state only when none of the ports in the correspondingVLAN are active E . An SVI port does not run 5TP or DTP F . To create a trunk， an SVI can be logically divided into subinterface

A . EIGRP database table B . EIGRP CEF table C . EIGRP neighbor table D . EIGRP adjacency table E . EIGRP interface table F . EIGRP topology table

A .  errpt -c  B .  errclear -j 0  C .  errclear 0  D .  startsrc -s syslogd

A .  errpt -d S 0  B .  errclear 0  C .  errpt -d H 0  D .  errclear -d H 0&e

A . lscfg B . route C . netstat D . entstat

A . DELETE * FROM TABLE T03 B . DELETE ALL FROM T03 C . DELETE * FROM T03 D . DELETE FROM T03

A . The port must be put into forwarding state manually after root-inconsistent state has beencorrected B . A Root Guard port receiving superior BPDU goes into a root-inconsistent state C . A Root Guard port receiving inferior BPDU goes into a root-inconsistent state D . While the port is in a root-inconsistent state no user data is sent across that port E . The port returns to a forwarding state if inferior BPDUs stop F . It should be applied to all switch port

A . A BPDU Guard port should only be configured on ports with PortFast enabled B . BPDU Guard and PortFast should not be enabled on the same port. C . BPDU Guard is used to ensure that superior BPDUs are not received on a switch port D . A BPDU Guard port receiving a BPDU will go into err-disable state E . A BPDU Guard port receiving a BPDU will be disabled F . BPDU Guard can be enabled on any switch port

A . Cisco proprietary B . Standards-based protocol C . Provides separate services for authentication， authorization， and accounting D . Encrypts only the password E . Uses UDP for a transport layer F . Encrypts the entire packet

A . With IGMPvl， queries are sent to a specific group B . Hosts issuing IGMPvl requests will be correctly interpreted by IGMPv2 hosts due to backwardcompatibility C . An IGMPv2 router will ignore IGMPv2 leave messages when IGMFVl hosts are present D . With IGMFV2， a leave message is supported E . An IGMPv2 host will send an IGMFVl report on an IGMFVl router F . An IGMPv2 router can only allow IGMPv2 hosts to execute a join request

A . 20 percent of the traffic on a network segment should be local. B . no more than 20 percent of the network traffic should be able to move across a backbone. C . no more than 80 percent of the network traffic should be able to move across a backbone. D . 80 percent of the traffic on a network segment should be local.

A . All OSPF networks require the use of multiple areas B . Multiple OSPF areas must connect to area 0 C . Single area OSPF networks must be configured in area 1 D . Areas can be assigned any number from 0 to 63535 E . Area 0 is called the backbone area F . Each OSPF area need to be configured with a loopback interface

A . @Responses       B . @AllChildren     C . @AllResponses   D . @AllDescendants&e

A . Attacker sends multiple DHCP requests flooding DHCP server B . Attacker connects rogue server initiating DHCP requests C . Attacker connects rogue server replying to DHCP requests D . Attacker sends DHCP jam signal causing DHCP server to crash E . Attacker sends gratuitous ARP replies， thereby jamming the DHCP server F . Attacker sends unsolicited DHCP replies， thereby jamming the DHCP server

A The development of a contingency allowance determined by combining (layering) various estimate segments to form. larger estimate segments. B the development of schedule alternatives and work-around C the management of a contingency budget D an assessment of project shut-down liabilities. E A and C

A.A title and a source line. B.A title and a graphic. C.A unique number for referencing purposes.

A．10-year,8% coupon. B．15-year,10% coupon. C．15-year,8% coupon.

A．Nuclear facilities. B．Iran"s nuclear process. C．Iran"s determination. D．Iran"s nuclear know-how.