单选题 Which of the following cable standards has a maximum effective range of 25 meters (82 feet)?()
1000Base-CX
1000Base-T
1000Base-LX
1000Base-SX
单选题 Which of the following Internet connection types has the highest amount of latency?()
Satellite
DSL
Cable
Fiber
单选题 Which of the following cable types is the LEAST affected by EMI?()
STP
Coax
UTP
Fiber
单选题 A 100 pair cable is typically used to connect:()
telephony distribution.
businesses with more than 75 computers.
security cameras.
computer labs with more than 20 computers.
单选题 Which of the following routing protocols is a link state and uses a backbone called area 0?()
OSPF
EIGRP
BGP
IS-IS
单选题 Which of the following is the maximum transmission speed of CAT5e?()
10Mbps
100Mbps
1000Mbps
10000Mbps
单选题 Which of the following devices sets the framing type on a T1 circuit?()
Transceiver
Gateway Modem
Router
CSU/DSU
单选题 Which of the following network topologies offers the greatest protection against network outages due to a single line break?()
Bus
Star
Mesh
Ring
单选题 Which of the following tools would be the BEST to check connectivity of a CAT5 cable?()
Tone generator
Multimeter
Punch-down tool
Cable tester
单选题 A company wants all IM chat via the internet to stop. A technician blocks IRC traffic with a traffic shaping device, yet IM chat remains useable. Which of the following should a technician do next?()
Block both IRC and ICMP
Utilize SNMP to identify IM users
Contact the IM carrier to request the IM account be disabled
Change the shaping setting to allow minimal traffic to reduce port hopping
公文的发文闭合程序?
初始评审的目的是为职业安全健康管理体系建立和实施提供基础,为职业安全健康管理体系的持续改进( )。
抗体是由下列哪种细胞产生的()
营业外收入是指企业发生的与其日常活动无直接关系的利得。
对于PowerPoint2003中文本框内的文字,设置项目符号可以采用的是()。
牵引装置的分类,可分为()。
USB是并行、串行数据传输模式之外的第3种传输模式。
足月新生儿,出生体重2.3kg,羊膜早破,生后2天拒奶,呕吐,发绀,黄疸进行性加重。体检:体温不升,前囟平,颈软,全身黄染,心率150次/分,心音及心率正常,腹软,肝肋下3cm。化验:白细胞20×109/L,中性粒细胞占80%,胆红素308μmol/L,血型“O”,母亲血型为“A”,最大可能是()
引起肾盂肾炎最常见的致病菌是( )。
女性患者,54岁,劳动中突感头晕,随即左半身无力,右眼闭合不全,双眼向左侧凝视,10分钟后昏迷。高热、双瞳孔小、四肢软瘫,应考虑的诊断是()