單項(xiàng)選擇題以下哪-條Linux命令是用來將當(dāng)前登陸用戶切換為其他用戶身份?

A、USermod
B、USeradd
C、Whoami
D、SU


您可能感興趣的試卷

你可能感興趣的試題

1.單項(xiàng)選擇題vlanid只能賦給一個(gè)用戶 這個(gè)模式符合以下哪個(gè)對(duì)象的特點(diǎn)

A、unstacked vlan
B、stacked vlan
C、cc vlan
D、rb vlan

2.單項(xiàng)選擇題14將光盤/dev/hdc卸載的命令是:()

A、umount /dev/hdc
B、unmount /mnt/cdrom /dev/hdc
C、unmount /dev/hdc
D、umount /mnt/cdrom /dev/hdc

4.單項(xiàng)選擇題PONNBI等待TL1 GW響應(yīng)的超時(shí)時(shí)間可以通過參數(shù)來修改的

A、tl1agent_client_ip.conf
B、ponnbi_sys.conf
C、service.xml
D、tl1connect.conf

5.單項(xiàng)選擇題ALU OLT中配置ONU的H248協(xié)議語音用戶,Tocken中tfix參數(shù)的功能描述正確的是

A、tfix參數(shù)用來定義sfu臨時(shí)終結(jié)點(diǎn)的格式,得到的端口格式t0,t1,t2…t9,t10,t11…t15
B、tfix參數(shù)用來定義MDU物理終結(jié)點(diǎn)的格式,得到的端口格式t00,t01,t02…t09,t10,t11…t15
C、tfix參數(shù)用來定義MDU臨時(shí)終結(jié)點(diǎn)的格式,得到的端口格式t0,t1,t2…t9,t10,t11…t15
D、tfix參數(shù)用來定義sfu物理終結(jié)點(diǎn)的格式,得到的觀看格式t00,t01,t02…t09,t10,t11…t15

最新試題

登錄7302 cli,以下是命令info spectrum-profile detail執(zhí)行后的一部分結(jié)果信息。#-----------------------------------------------------------------------------------------------------------------------------------echo "xdsl"#-----------------------------------------------------------------------------------------------------------------------------------spectrum-profile 1 name testinglocal-profileversion 1op-mode 05:01:04:01:0c:01:00:00no min-noise-down # value=0no min-noise-up # value=0no trgt-noise-down # value=60no trgt-noise-up # value=60no max-noise-down # value=511no max-noise-up # value=511no carrier-mask-down # value=00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00no carrier-mask-up # value=00:00:00:00:00:00:00:00rf-band-list 07:12:07:d0:19:0d:ac:0e:d8:19:1b:58:1b:bc:19:27:74:27:a6:19no modification # value=completeactiveadsl-adsl2no proprietary-featno max-agpowlev-down # value=255no max-agpowlev-up # value=255no max-psd-down # value=-400no max-psd-up # value=-380no pbo-modeno max-recv-power-up # value=255exitre-adslno proprietary-featno max-agpowlev-down # value=255no max-agpowlev-up # value=255no max-psd-down # value=-370no max-psd-up # value=-329no pbo-modeno max-recv-power-up # value=255exitadsl2-plusno proprietaty-featno max-agpowlev-down # value=255no max-agpowlev-up # value=255no max-psd-down # value=-400no max-psd-up # value=-380no pbo-modeno max-recv-power-up # value=255exitvdslvdsl-band-plan b3no adsl-bandno max-agpowlev-down # value=255no max-agpowlev-up # value=255no psd-shape-down # value=etsi-p-cab-m1no psd-shape-up # value=etsi-p-m1no pbo-moderecv-psd-shape-up etsi-aexitexit#-----------------------------------------------------------------------------------------------------------------------------------根據(jù)以上信息判斷,有關(guān)該profile支持的dsl模式,以下說法中正確的是()。

題型:單項(xiàng)選擇題

7342 OLT通過PPPoE方式實(shí)現(xiàn)IGMP,那么在LT中IGMP應(yīng)配置何種模式?()SET-PONIGMPSYS::COM::::QUERYINT=,QMAXRESTIME=,ROBUSTNESS=,SRCIPADDR=13.13.13.13,MODE=(),USERVERSIONDEF=v2,NETWVERSIONDEF=v2;ENT-PONIGMPCHN::HSI-1-1-4-1-1-1-1-1::::USERVERSION=v2,USERPRI=4095,PERMDEC=3,PREVPERMDEC=2;SET-PONMCBW::PON-1-1-4-1:::600000;

題型:單項(xiàng)選擇題

執(zhí)行下面的兩條命令顯示如下:/* rtrv-ipport::acuenet:: */ "ACUENET:MANUAL:IPADDR=135.251.214.100,NETMASK=255.255.255.0,PHYADDR=00-07-72-ab-99-10"/* rtrv-ne-ALL::COM:: */"COM::MEMALM=\"RESET\",SHUTPREP=NOTREADY,DAYLIGHTSAVE=DISABLE,DEFROUTER=135.251.214.1,TZOFFSET=0,EPSSOAKINT=30000,CMDSSNTMO=150, SWRBALM=CLEAR,DBRBALM=CLEAR,AUTHSUPER=LOCAL,LANXMAC=00-07-72-ab-99-0e,AUTHDEF=REJECTALL,ACUSEC=DISABLED,SLIDMODE=ASCII,VOIPSCHEDMODE=DISABLED,SOAKMODE=DISABLE"此臺(tái)7342 OLT的地址是多少?

題型:問答題

7342 OLT通過PPPoE方式實(shí)現(xiàn)IGMP,那么在LT中IGMP應(yīng)配置何種模式?()SET-PONIGMPSYS::COM::::QUERYINT=,QMAXRESTIME=,ROBUSTNESS=,SRCIPADDR=13.13.13.13,MODE=(),USERVERSIONDEF=v2,NETWVERSIONDEF=v2;ENT-PONIGMPCHN::HSI-1-1-4-1-1-1-1-1::::USERVERSION=v2,USERPRI=4095,PERMDEC=3,PREVPERMDEC=2;SET-PONMCBW::PON-1-1-4-1:::600000;

題型:單項(xiàng)選擇題

P=201397095{C=-{AV=ROOT{M{TS{root/maxNumberOfContexts=1024,root/maxTerminationsPerContext=2,root/normalMGExecutionTime=10000,root/normalMGCExecutionTime=10000,root/MGProvisionalResponseTimerValue=30000,root/MGCProvisionalResponseTimerValue=30000}}}}}通過以上消息你可以知道lgw目前最大關(guān)聯(lián)數(shù)為多少?()

題型:單項(xiàng)選擇題

7342 OLT通過IPoE方式實(shí)現(xiàn)IGMP,那么在LT中IGMP應(yīng)配置何種模式?()SET-PONIGMPSYS::COM::::QUERYINT=,QMAXRESTIME=,ROBUSTNESS=,SRCIPADDR=13.13.13.13,MODE=(),USERVERSIONDEF=v2,NETWVERSIONDEF=v2;ENT-PONIGMPCHN::HSI-1-1-4-1-1-1-1-1::::USERVERSION=v2,USERPRI=4095,PERMDEC=3,PREVPERMDEC=2;SET-PONMCBW::PON-1-1-4-1:::600000;

題型:單項(xiàng)選擇題

配置優(yōu)先級(jí)隊(duì)列模板,要求Pbit為0的數(shù)據(jù)包,映射到隊(duì)列1,權(quán)重最高;Pbit為1,2,3,4,5的數(shù)據(jù)包,映射到隊(duì)列2,權(quán)重最低;Pbit為6.7的數(shù)據(jù)包,映射到隊(duì)列3,不使用隊(duì)列。PQ1WEIGHT=(),PQ2WEIGHT=(),PQ3WEIGHT=(),PQ4WEIGHT=256,PQ5WEIGHT=256,PQ6WEIGHT=256,PQ7WEIGHT=256,PQ8WEIGHT=256,DOT1P0PQ=1,DOT1P1PQ=2,DOT1P2PQ=2,DOT1P3PQ=2,DOT1P4PQ=2,DOT1P5PQ=2,DOT1P6PQ=3,DOT1P7PQ=3"

題型:填空題

通過以下命令查看主控板是否已經(jīng)啟動(dòng)NT自動(dòng)保護(hù)?RTRV-EQPT::ALL;/* RTRV-EQPT::ALL */"P-OLT:LEEU,LEEU::,""RACK-1:ALTR-E,ALTR-E::,""SHELF-1-1:OLTS-M,OLTS-M:SHELFCLASS=MAINETHERNET:IS-NR,""ACU-1-1:AACU-C,AACU-C::IS-NR,""NTA:EHNT-B,EHNT-B::IS-NR,""NTB:EHNT-B,EHNT-B::IS-STBY,"

題型:判斷題

7360 show port(nt-a:xfp:1)后得到如下反饋Traffic Statistics===============================================================================Input Output-------------------------------------------------------------------------------Octets 0 0Packets 0 0Errors 0 0 以下說法正確的是:()

題型:多項(xiàng)選擇題

通過以下命令查看主控板是否已經(jīng)啟動(dòng)NT自動(dòng)保護(hù)?RTRV-EQPT::ALL;/* RTRV-EQPT::ALL */"P-OLT:LEEU,LEEU::,""RACK-1:ALTR-E,ALTR-E::,""SHELF-1-1:OLTS-M,OLTS-M:SHELFCLASS=MAINETHERNET:IS-NR,""ACU-1-1:AACU-C,AACU-C::IS-NR,""NTA:EHNT-B,EHNT-B::IS-NR,""NTB:EHNT-B,EHNT-B::IS-STBY,"

題型:判斷題