【单选题】
下列PTN950设备中提供电接口板的为（ ）___
A. EF8F
B. D2EF8F
C. D2EG2
D. EF8T
E.
F.
查看试卷，进入试卷练习
微信扫一扫，开始刷题
答案
D
解析
暂无解析
相关试题
【单选题】
数据封装的正确过程是（）___
A. 数据段->数据包->数据帧->数据流->数据
B. 数据流->数据段->数据包->数据帧->数据
C. 数据->数据包->数据段->数据帧->数据流
D. 数据->数据段->数据包->数据帧->数据流
E.
F.
【单选题】
私有corba升级的时候不需要备份的有（ ）___
A. EMS CORBA SERVER文件夹
B. 向上层网管对接时提供的工程名
C. 当前corba的安装包
D. 当前网管的OTNM2000安装包
E.
F.
【单选题】
私有接口在没有设置相应的用户名和密码的情况下，用户名可以自定义，我们自定义用户名的密码为（ ）___
A. admin
B. vislecaina
C. WELCOME
D. 123qwer
E.
F.
【单选题】
添加静态路由的命令为（ ）___
A. add -p 目的地址 mask 掩码 下一跳
B. add -p 源地址 mask 掩码 下一跳
C. add -p 目的 地址 掩码 下一跳
D. add -p 源地址 掩码 下一跳
E.
F.
【单选题】
包过滤防火墙不能 （ ）___
A. 防止企业外网用户访问内网的主机
B. 防止感染了病毒的软件或文件的传输
C. 防止企业内网用户访问外网的主机
D. 读取通过防火墙的数据内容
E.
F.
【单选题】
通过network命令把路由信息注入到BGP 的路由表，并通告给其它BGP 邻居的条件是（ ）___
A. 通告的路由必须下一跳可达
B. 通告的路由必须是本地直连路由
C. 通告的路由必须是非本地直连路由
D. 通告的路由必须是存在于IP 路由表
E.
F.
【单选题】
下列关于IPv6协议优点的描述中，准确的是( )___
A. IPv6协议支持光纤通信
B. IPv6协议支持通过卫星链路的Internet连接
C. IPv6协议具有128个地址空间，允许全局IP地址出现重复
D. IPv6协议解决了IP地址短缺的问题
E.
F.
【单选题】
下面有关BGP 协议描述，错误的是（ ）___
A. BGP 是一个很健壮的路由协议
B. BGP 可以避免路由环路
C. BGP 只支持手动聚合
D. BGP 是继承EGP 而来的
E.
F.
【单选题】
采用 CSMA/CD 的网络中发生冲突时，需要传输数据的主机在回退时间到期后做何反应.（ ）___
A. 造成冲突的主机重新传输最后16个帧
B. 主机延长其延迟时间以便快速传输。
C. 主机恢复传输前侦听模式
D. 造成冲突的主机优先发送数据
E.
F.
【单选题】
下面有关生成树协议的互通性描述，错误的为 ___
A. ＲＳＴＰ可以和ＳＴＰ完全互通
B. 运行ＲＳＴＰ的交换机，如果和运行ＳＴＰ的交换机互联，则运行ＲＳＴＰ的交换机会将该端口迁移到ＳＴＰ模式下
C. 与ＳＴＰ桥相连的端口发送的是ＳＴＰ报文
D. ＲＳＴＰ报文和ＳＴＰ报文完全相同，所以能够完全互通
E.
F.
【单选题】
下面有关子网交叉和网元交叉的描述正确的有（ ）___
A. 子网交叉和网元交叉存储在数据库中不同的位置
B. 在子网交叉界面中对业务做了修改后，需要在网元交叉中手工进行相应的修改
C. 在网元交叉中改动了业务配置后，子网交叉中自动进行了相应的改动
D. 在子网交叉配置好业务后，进行交叉下载时网管软件会自动生成相应的网元交叉并下发到设备
E.
F.
【单选题】
修改了数据库Ip后，monitor服务的Ip在哪修改（ ）___
A. monitor.ini
B. dumper.ini
C. otnm.ini
D. replication.ini
E.
F.
【单选题】
修改数据库ip后下列哪项ip不用修改（ ）___
A. [BROWSER]DATABASE_SERVER
B. [DTSERVER]BIND_TO_IP
C. [Manager2]Local1 =
D. 物理网卡Ip
E.
F.
【单选题】
需要基于Layer7 的负载均衡的原因正确的是（ ）___
A. 会话保持的需要：很多应用单靠Layer4 层的信息不足以分辨出会话的相关性
B. 应用安全的需要：应用级的安全要求负载均衡器必须能检查、分析应用层的信息，并以此作为流量分发、访问控制的依据。
C. 服务器、应用健康检查的需求：负载均衡器要及时发现服务器能否正常响应访问请求作出正确的响应，这需要对数据包的应用层进行分析才能实现。
D. 以上都是
E.
F.
【单选题】
巡检要求是：每月及重大节日前定期检查环境、物理设备检查、数据库检查、操作系统检查、防火墙安全策略、远程访问信息、系统性能检查等。是哪一类( )___
A. A类
B. B类
C. C类
D. D类
E.
F.
【单选题】
ZXCTN6000系列设备的程序文件zxr10.zar存放在 ( )___
A. /flash/img
B. /flash/
C. /flash/data
D. /flash/cfg
E.
F.
【单选题】
一个OSPF 路由器选举DR 和BDR 之前会检测网络上是否有已经存在的DR 和BDR，如果已经有DR和BDR，直接进入（ ）状态___
A. Waiting
B. Backup
C. DR
D. DROther
E.
F.
推荐试题
【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
【单选题】
（7）Which of the following factors may influence the time course of a drug in the plasma and hence at its site of action?___
A. Food
B. Disease state
C. Route of administration
D. All of above
【单选题】
(8)Please identify the potential biological barriers for an orally administered tablet to be absorbed into the systemic circulation___
A. Sk d dermis
B. Gastrointestinal epithelium
C. Oral mucosal membrane
D. All of above
【单选题】
(9) Given the same administration dose, which of the following will likely result in varying bioavailabilities for the same drug administered to the same person? ___
A. tablets (p.o. )vs. solutions(p0.)
B. solutions for injection(i v )vs oral solutions(p0.)
C. coated tablets (p.0. )vs hard gelatin capsules(p0.)
D. All ofabove
【单选题】
(10)Which of the following statements is true?___
A. Bioavailability is only related to the administered dose and the total drug concentration in the blood circulation.
B. Plasma protein binding does not affect the bioavailability of a specific drug.
C. A given drug in different dosage forms may show differences in bioavailability if given by the same route.
D. Biopharmaceutical studies do not involve animal experiment.
【判断题】
Much of our present physiological knowledge has been found from the experiments and studies on human beings.
A. 对
B. 错
【判断题】
Living cells break down glucose and fats to provide energy for other activities, which is called.
A. 对
B. 错
【判断题】
The right atriapumps deoxygenated blood to the lungs where it absorbs oxygen from the air.
A. 对
B. 错
【判断题】
The nervous system uses electrical signals to transmit information very rapidly to specific cells.
A. 对
B. 错
【判断题】
With the level of sodium increasing extracelular fruid. the cardiac muscle cells become too excitable and may contract.
A. 对
B. 错
【判断题】
A negative feedback loop is a control system that acts to maintain the level of some variables within a given range following a disturbance
A. 对
B. 错
【判断题】
(1)Pharmacodynamics, which is concerned with the study of the biochemical and physiological effects of drugs and their mechanisms of action, Is an experimental medical science.
A. 对
B. 错
【判断题】
2)It's unreasonable for a physician to be interested mainly in the effects of drugs on human beings, for the pharmacological evaluation of drugs in them may be limited due to technical, legal, and ethical reasons.
A. 对
B. 错
【判断题】
（3） As the effects of drugs are often characterized by significant interspecies variation and may be further modified by disease, clinical pharmacology has never been efibrasized.
A. 对
B. 错
【判断题】
The physician is not interested in drugs that are useful in the prevention,diagnosis,and treatment of human disease, but in chemical agents that are commonly responsible for household and industrial poisoning as well as environmental pollution.
A. 对
B. 错
【判断题】
(5)A drug is said to be useful in therapy if it has the ability to produce its desired effects with only tolerable undesired effects.
A. 对
B. 错
【判断题】
(6)Toxicology deals not only with drugs used in therapy but also with many other chemicals that may be responsible for household, environmental, or industrial intoxication.
A. 对
B. 错
【判断题】
1)With the more efficient screening tests and burgeoning knowledge about how a molecules biological activities are likely to be changed, the traditional approach of discovering new drugs has been improved.
A. 对
B. 错
【判断题】
2)With the parallel synthesis used to identify which small segment of any given large protein would bind to an antibody, Mario Geysen generated a variety of short protein fragments by combining multiple amino acids in different permutations.
A. 对
B. 错
【判断题】
)A parallel synthesis and a split-and-mix synthesis are different in that in a split-and-mix synthesis, all the products are assembled separately n their respective reaction vessels.
A. 对
B. 错
【判断题】
4) In many laboratories, robots are used in the routine work of parallel synthesis to deliver small amounts of reactive molecules into appropriate wells, thus making the process more accurate and less tedious.
A. 对
B. 错
【判断题】
5) In a parallel synthesis, each compound remains in its own container; while in a split-and-min synthesis, the related ce mpounds are mixed up in the same reaction vessel.
A. 对
B. 错
【判断题】
6)In order to solve the difficulties of identifying the compounds made in a parallel synthesis scientists pull out from the mixture the beads that bear biologically active molecules and determine the molecular makeup o d attached.
A. 对
B. 错
【判断题】
1)The concentration of a drug in whole plasma is the most accurate index of the drug concentration at the site（s） of action.
A. 对
B. 错
【判断题】
(2)It is difficult to measure the total concentration of both unbound and bound drug in total plasma.
A. 对
B. 错
