【单选题】
由于线路劣化等原因，造成单条AAA级互联网专线业务性能明显劣化，影响客户使用（如丢包率大于1％或频繁瞬断（１小时内出现５次及以上）超过( )个小时的，定义为重大故障。___
A. 8
B. 12
C. 16
D. 20
E.
F.
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相关试题
【单选题】
由于帧中继可以使用链路层来实现复用和转接，所以帧中继网中间节点中只有( )___
A. 物理层和链路层
B. 链路层和网络层
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邮件服务器使用POP3协议的主要目的是（ ）___
A. 创建邮件
B. 管理邮件
C. 收取邮件
D. 删除邮件
E.
F.
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邮件服务器使用SMTP发送邮件，是基于哪个端口进行通信（ ）___
A. 80
B. 23
C. 25
D. 110
E.
F.
【单选题】
与标准接口没有直接关系的服务（ ）___
A. Armyapi
B. Fhtmfserver
C. INOA5个服务
D. otnmapi_rpc_server
E.
F.
【单选题】
与第三方对接时，我公司corba初始密码是什么（ ）___
A. WELCOME
B. HOLLO
C. HI
D. COME
E.
F.
【单选题】
远程IP配置功能可以通过d:\otnm\ui\otnm.ini文件中的哪项参数的值改为1打开（ ）___
A. MENU_NEIPCFG
B. DEVCFGLOCK
C. AUTO_LOCK_TIMEOUT
D. USER_LOCKED_TIME
E.
F.
【单选题】
下列关于单纤光纤和单纤收发器的说法错误的是()___
A. 单纤使用的波长多为1310nm和1550nm
B. 单纤采用了波分复用的技术
C. 单纤收发器产品拥有统一国际标准
D. 单纤收发器产品普遍存在信号衰耗大的特点
E.
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【单选题】
在 OSPF 协议中，大多数报文是以组播地址发送的，既达到了广播的作用，又最大程度地减少了对其他网络设备的干扰.（ ）___
A. TRUE
B. FALSE
C.
D.
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在5506-07ONU本地查看ONU光功率参数在（ ）show opvender___
A. switch
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C. pon
D. device
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【单选题】
在AN5516(GPON)系统中，登陆到PON盘（GC4B）中以后，输入config/gpon#show reg onu link PON号时，代表是04型ONU的代号是：（ ）___
A. 340
B. 341
C. 342
D. 345
E.
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【单选题】
在AN5516(GPON)系统中，登陆到PON盘（GC4B）中以后，输入config/gpon#show reg onu link PON号时，代表是06型ONU的代号是：（ ）___
A. 340
B. 341
C. 342
D. 345
E.
F.
【单选题】
在AN5516(GPON)系统中，登陆到PON盘（GC4B）中以后，输入config/gpon#show reg onu link PON号时，代表是07型ONU的代号是：（ ）___
A. 340
B. 341
C. 342
D. 345
E.
F.
【单选题】
在AN5516(GPON)子框中，登陆04-ONU时，需要配置哪项数据做准备条件。（ ）___
A. 配置语音带宽
B. 配置数据带宽
C. 配置IPTV带宽
D. 配置私网管理VLAN和IP
E.
F.
【单选题】
在AN5516(GPON)子框中，登陆06-ONU时，需要配置哪项数据做准备条件。（ ）___
A. 配置语音带宽
B. 配置数据带宽
C. 配置IPTV带宽
D. 配置私网管理VLAN和IP
E.
F.
【单选题】
在AN5516(GPON)子框中，登陆07-ONU时，需要配置哪项数据做准备条件。（ ）___
A. 配置语音带宽
B. 配置数据带宽
C. 配置IPTV带宽
D. 配置私网管理VLAN和IP
E.
F.
【单选题】
在AN5516-01EPON系统中检查光路是否有CRC错误导致上行丢包时，应该查看的统计命令为（ ）___
A. show statistic olt lif_up
B. show statistic olt nni_up
C. show statistic olt epon_up
D. show statistic onu epon_up
E.
F.
【单选题】
目前的Fax Modem大多遵循V.29和V.17传真协议，其中V.29支持传真速率是（ ）___
A. 9600bps
B. 14400bps
C. 4800bps
D. 11800bps
E.
F.
【单选题】
下列模块哪项不是网管服务的（ ）___
A. Dtserver
B. Manager2
C. Otnm2000
D. Oninit
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【单选题】
在BGP 路由协议中，以下真正用来传递路由信息的报文是（ ）___
A. Notification
B. Open
C. Update
D. Keepalive
E.
F.
【单选题】
在BGP 协议中，对环路的避免的方法有（ ）___
A. 在路由的ORIGIN 属性中记录路由的起源
B. 在路由的AS_PATH 属性中记录所有途经的AS
C. 在路由的NEXT_HOP 属性中纪录路由的下一跳
D. 在路由的MED 属性中影响另一AS 的出口选择
E.
F.
【单选题】
在BGP 协议中，用来交换BGP 版本号、自治系统号、保持时间以及BGP 标识符等信息的报文是（ ）___
A. Open 报文
B. Update 报文
C. keepalive 报文
D. Notification 报文
E.
F.
【单选题】
在BGP协议中，对环路的避免的方法有___
A. 在路由的Origin 属性中纪录路由引入的来源
B. 在路由的AS-Path属性中记录着所有途经的AS
C. 在路由的Next-Hop 属性中纪录路由的下一跳
D. 在路由的MED 属性中影响另一AS的出口选择
E.
F.
【单选题】
在Cisco路由器上如何查看一个以太口（如Ethernet 0）的丢包率，收到和发送的包数，字节数___
A. show interface Ethernet 0
B. show controller Ethernet 0
C. show config Ethernet 0
D. how detail
E. thernet 0 E.
F.
【单选题】
在FTTH方式热熔放装过程中，ONU侧结头熔好后的收光功率，应大于（ ）dbm？___
A. -22
B. -24
C. -20
D. -26
E.
F.
【单选题】
在GF155-03B设备中03槽位所对应EMU盘的DCC灯是（ ）___
A. DCCE
B. T1
C. T2
D. DCCW
E.
F.
【单选题】
在GF155-03B设备中04槽位所对应EMU盘的DCC灯是（ ）___
A. DCCE
B. T1
C. T2
D. DCCW
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F.
【单选题】
在GF2488-01B设备中30槽位2.5G光盘所对应32方向EMU盘的域配置索引号是（ ）___
A. 1
B. 2
C. 3
D. 4
E.
F.
【单选题】
下列哪个ONU设备属性是关联字段（）___
A. A.归属分光器
B. B.厂家名称
C. C.ONU名称
D. D.覆盖范围
E.
F.
【单选题】
如下设置时，GPON OLT网络侧会收到带( )VLANTAG的上行报文 FLEX MODE SVLAN: VLAN=100 (RBVLAN STACK MODE) SERVICE-FLOW: UNISIDEVLAN=200; NETWORKSIDEVLAN=300; 客户侧发送VLAN=200的上行报文___
A. 100:200
B. 300:200
C. 100:300
D. 200:300
E.
F.
【单选题】
在GF2488-01B设备中30槽位所对应32方向EMU盘的DCC灯是（ ）___
A. E1
B. W1
C. E2
D. W2
E.
F.
【单选题】
在GF2488-01B设备中31槽位2.5G光盘所对应32方向EMU盘的域配置索引号是（ ）___
A. 1
B. 2
C. 3
D. 4
E.
F.
【单选题】
在GF2488-01B设备中31槽位所对应32方向EMU盘的DCC灯是（ ）___
A. E1
B. W1
C. E2
D. W2
E.
F.
【单选题】
在GF2488-01B设备中32槽位2.5G光盘所对应32方向EMU盘的DCC灯是（ ）___
A. T4
B. T3
C. T2
D. T1
E.
F.
【单选题】
在GF2488-01B设备中32槽位2.5G光盘所对应32方向EMU盘的域配置索引号是（ ）___
A. 14
B. 15
C. 30
D. 31
E.
F.
【单选题】
在GF2488-01B设备中32槽位O622-2光盘光口1所对应32方向EMU盘的DCC灯是（ ）___
A. T4
B. T3
C. T2
D. T1
E.
F.
【单选题】
在GF2488-01B设备中32槽位O622-2光盘光口1所对应32方向EMU盘的域配置索引号是（ ）___
A. 14
B. 15
C. 30
D. 31
E.
F.
【单选题】
在GF2488-01B设备中32槽位O622-2光盘光口2所对应32方向EMU盘的DCC灯是（ ）___
A. T4
B. T3
C. T2
D. T1
E.
F.
【单选题】
在GF2488-01B设备中32槽位O622-2光盘光口2所对应32方向EMU盘的域配置索引号是（ ）___
A. 14
B. 15
C. 30
D. 31
E.
F.
【单选题】
ZXCTN6000系列设备的配置文件startrun.dat存放在（ ）___
A. flash/img
B. flash
C. flash/data
D. flash/cfg
E.
F.
【单选题】
下列哪些OSPF报文中会出现完整的LSA信息？___
A. HELLO报文（Hello Packet）；
B. DD报文（Database Description Packet）
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推荐试题
【单选题】
晚上，植物与动物都不应该放入卧室内，要将其移到卧室外，这是因为它们会降低卧室内的___
A. 空气温度
B. 空气湿度
C. 氧气浓度
D. 氮气浓度
【单选题】
杂交优势往往在第几代杂交种子中表现最明显。___
【单选题】
以下不属于人体增强技术类型的是___
A. 短暂性增强
B. 持续性增强
C. 结构性增强
D. 内在增强
【单选题】
大陆漂移学说是由谁提出的___
A. 勒比雄
B. 魏格纳
C. 赫斯
D. 李四光
【单选题】
(1)Whieh of the following descriptions about the characteristics of physiology is wrong？___
A. It is the study of how living organisms work.
B. It illustrates the discipline of the development and the evolution of disease and the essence of disease.
C. It is to study the living phenomena and the function activities of living organs.
D. It is to explain how they are regulated and integrated.
【单选题】
(2) Which of the following are specialized in producing force and movement?___
A. muscle cells
B. connective tissues
C. nerve cells
D. epithelial cells
【单选题】
(3)The fluid environment surrounding each cell is called the___
A. intracellular fluid
B. intracellular fluid
C. internal environment
D. external environment
【单选题】
(4) Which of the following is not the fundamental characteristic of living organisms?___
A. metabolism
B. adaption
C. reproduction
D. passive diffusion
【单选题】
(5)Whicl of the following is a physiological process with negative feedback?___
A. blood coagulation
B. process of passing urine
C. sino-aortic baroreceptor reflex
D. process of parturition
【单选题】
(6)Which of the following is not the characteristic of regulation by hormone?___
A. diffusenin nature
B. longer in duration
C. accurate in action
D. action in overcorrection
【单选题】
7)Which of the following is not the characteristic of cells?___
A. They are bound by the plasma membrane
B. They have the ability to break down large molecules to smaller ones to Liberate energy for their activities
C. They possess a nucleus which contains genetic information in the form of deoxyribonucleicacid(DNA).
D. Living cells can not transform materials.
【单选题】
8)The breakdown of large molecules to smaller ones is called___
A. respiration
B. anabolism
C. catabolism
D. absorption
【单选题】
9) Which of the following descriptions about the characteristics of nervous regulation is wrong?___
A. It responds fast
B. It acts exactly
C. It responds slowly.D.
D. uration is short
【单选题】
10)Which of the following descriptions about the control of body function is wrong?___
A. Homeostasis is kept by feedback control.
B. Negative feedback minimizes the changes, leading to stability.
C. Positive feedback is not useful.
D. Feed-forward makes human body foresee and adapt itself to the environment promptly.
【单选题】
(1)Which of the following parts of knowledge of drugs should be included in pharmacology?___
A. The effects of drugs on man
B. The correlation of biological activity with chemical structure
C. The history, source, physical and chemical properties, compounding, biochemical and physiologicaleffects, mechanisms of action, absorption, distrilbution, biotransformation and excretion.
D. The prevention, recognition, and treatment of drug poisonings
【单选题】
(2)Which of the following is what a clinician is primarily interested in according to the text?___
A. Drugs which can be reasonably limited to those aspects that provide the basis for their rational clinical use
B. Chemical agents that are not used in therapy but are commonly responsible for household and industrial poisoning as well as environmental pollution
C. Drugs which are useful in the prevention,diagnosis and treatment of human disease,or in the prevention of pregnancy.
D. rugs which are useful in the prevention, diagnosis and treatment of human disease, or in the prevention of pregnancy.
【单选题】
(3)Why was the physician not interested in pharmacognosy?___
A. He didn't have to select the proper plants for his prescription
B. He had a broad botanical knowledge
C. Fewer drugs were obtained from natural sources
D. Natural drugs had little difference with synthetic ones
【单选题】
(4)Which of the following is the best way of studying pharmacology for medical students and practitioners?___
A. to have a broad botanical knowledge
B. to select a plant and its preparation
C. to have the ability to purify natural plants
D. to have curiosity that stimulates them to learn about sources of drugs
【单选题】
(5)What are the tasks related to medicines almost complete!y delegated to the pharmacists now?___
A. the physical and chemical properties of medicines
B. the preparing, compounding, and dispensing of medicines
C. dosage forms of medicines available
D. the therapeutic and other uses of medicines
【单选题】
(6) What is a main unique aspect of pharmacodynamics?___
A. Pharmacodynamics is an experimental medical science
B. Pharmacodynamics is focused on the characteristics of drugs
C. Pharmacodynamics borrows freely from both the subject matter and the experimenta techniques of physiology, biochemistry, microbiology, genetics and pathology
D. Pharmacodynamics correlates the entire field of preclinical medicine
【单选题】
7) What time of history does pharmacodynamics date back to?___
A. the second half of the seventeenth century
B. the second half of the eighteenth century
C. the second half of the nineteenth century
D. the second half of the twentieth century
【单选题】
8)What does the research on pharmacodynamics focus on?___
A. study of clinical effect of drugs
B. study of the process of drugs in the body
C. study of the effect and the mechanism of drugs on the body
D. study of the correlation of the actions and effects of drugs with their chemical structure
【单选题】
(9)Which of the following is true when drugs are selected?___
A. It has to be based in part on legal reasons.
B. It has to be based in part on ethical reasons.
C. It has to be based in part on the pharmacological evaluation in man
D. It has to be based in part on the pharmacological evaluation in animals
【单选题】
(10)Why are chemotherapeutic agents useful in therapy?___
A. They stimulate or depress biochemical or physiological function in man in a sufficiently reproducible manner to provide relief of symptoms or, ideally, to alter favorably the course of disease
B. They can produce desired effects with only tolerable undesired effects
C. They have only minimal effects on man but can destroy or eliminate parasites
D. The selectivity of their effects is one of their most important characteristics
【单选题】
1)H. Mario Geysen initially used parallel synthesis as a quick way to identify which small_____ of any given large protein bound to an antibody.___
A. division
B. pieces
C. part
D. fragment
【单选题】
2)Chemists often start a combinatorial synthesis by attaching the first set of building blocks_____ to microscopic beads made of polystyrene.___
A. solid
B. inert
C. soft
D. active
【单选题】
3）The chemical reactions required to link compounds to the beads and later to detach them____ to the synthesis proces.___
A. induce complications
B. make easy
C. introduce complications
D. introduce easy
【单选题】
4)In a parallel synthesis, all the products are_____ separately in their own reaction vessels.___
A. combined
B. assembled
C. joined
D. assorted
【单选题】
(5)In many laboratories today, robots assist with the routine work of parallel synthesis, such as small___ amounts of reactive molecules into the appropriate wells.___
A. sending
B. transporting
C. delivering
D. giving
【单选题】
(6)Scientists can pull out from the mixture the beads that bear biologically active molecules and then,using sensitive detection techniques,___ the molecular makeup of the compound attached.___
A. determine
B. make sure
C. find
D. search
【单选题】
(7)Most pharmaceutical companies today continue to___ parallel synthesis. Which of the following is not appropriate to be filled in the blank?___
A. count in
B. count on
C. depend on
D. rely on
【单选题】
(8)Once they identify a promising substance, they___ make many one-at-a-time modifications to the structure.___
A. laboriously
B. hardly
C. easy
D. effectively
【单选题】
(9)Often these procedures yield a compound having acceptable___ and safety.___
A. strength
B. effect
C. potency
D. effort
【单选题】
10)In many laboratories today, robots___ the routine work of parallel synthesis.___
A. help
B. assist with
C. assist in
D. assist to
【单选题】
(1)Pharmaceutics is an interdisciplinary subject involving___
A. formulation, manufacturing, physical pharmacy, and biopharmaceutics
B. manufacturing
C. physical pharmacy
D. biopharmaceutics
【单选题】
（2）Formulation is about the design, development and evaluation of dosage forms,___
A. discovery of novel drugs
B. analytical methods
C. drug delivery systems and manufacturing process
D. dosing regimen
【单选题】
(3)Biopharmaceutics mainly studies the in vivo process of drugs and metabolites in humans, animals and tissue culture, which specifically involves___
A. absorption and distribution
B. absorption, distribution, metabolism, and excretion
C. metabolism and excretion
D. absorption and excretion
【单选题】
(4)Regarding the definition of bioavailability(BA), BA is related to___
A. total plasma drug concentration only
B. unbound drug concentration in the plasma
C. unbound drug concentration at the target site
D. total plasma drug concentration, and the administered drug dose
【单选题】
(5)Plasma drug concentration is affected by following factors such as___
A. rate of absorption
B. rate and extent of distribution
C. rate ofeli Imination
D. all ofabove
【单选题】
6)Which of the following routes of administration will involve the absorption of drugs?___
A. i.v.injection
B. i.v.infusion
C. Subcutaneous injection, transdermal and oral
D. None of above
