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 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 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 Internet connection types has the highest amount of latency?()
Satellite
DSL
Cable
Fiber
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
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 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 is the maximum transmission speed of CAT5e?()
10Mbps
100Mbps
1000Mbps
10000Mbps
海南西环高铁于去年底正式开通运营,全球首条环岛高速铁路诞生了。铁路最早出现在()
纵向偏离时,每个车辆转向架所承受的货物重量不得超过货车容许载重量的(),且两转向架承重之差不得大于10t。
采用过户转让的票据多指股票、政府债券和提单等。
周作人散文笔调从容闲逸,别有一种平淡悠远的趣味,其作品《零余者》《写在人生边上》都体现了这种风格。
关于女性输尿管下列哪项是正确的()
中国银行间市场交易商协会(以下简称交易商协会)负责受理企业债务融资工具的发行注册。交易商协会不接受注册的,企业可于( )后重新提交注册文件。
影响横封效果的因素有()
固定资产改良过程发生的变价收入应记入()。
简述脑梗死的治疗原则。
患者输注少白红细胞悬液约1小时时,出现呼吸急促,大汗淋漓,寒战,腰背部剧痛,心前区压迫感,心率120/分钟,呼吸30/分钟,血压75/45mmHg,体温39.8℃。随即出现血红蛋白尿。最可能的临床诊断是()