网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)

While deploying a new switch, you accidently connect ports 3/12 and 3/18 together, creating a loop. STP detected it and placed port 3/18 in blocking mode. Why did STP not place port 3/12 in blocking mode instead? ()

  • A、 Port 3/12 was already up and forwarding before the loop was created.
  • B、 Port priority is based on lowest priority and lowest port number.
  • C、 You connected the wire on port 3/18 last.
  • D、 None of the above, it is purely random.

参考答案

更多 “While deploying a new switch, you accidently connect ports 3/12 and 3/18 together, creating a loop. STP detected it and placed port 3/18 in blocking mode. Why did STP not place port 3/12 in blocking mode instead? ()A、 Port 3/12 was already up and forwarding before the loop was created.B、 Port priority is based on lowest priority and lowest port number.C、 You connected the wire on port 3/18 last.D、 None of the above, it is purely random.” 相关考题
考题 下面关于do-while语句和while语句说法的是()。 A、while语句和do-while语句肯定都要执行B、两者运行结果不同C、do-while在判断条件之前先执行循环体一次D、while语句至少执行一次

考题 C语言中 while 和do-while循环的主要区别是A.do-while的循环体至少无条件执行一次B.while的循环控制条件比do-while的循环控制条件更严格C.do-while允许从外部转到循环体内D.do-while 的循环体不能是复合语句

考题 以下哪个while循环判定式最有可能是因为程序员失误而写出的代码()。 A.while(xB.while(x=7)C.while(xD.while(x!=7)

考题 与以下程序段等价的是( ) while (a) { if (b) continue; C; }A.while(a)B.while(c) {if(!b) c;) {if(!b)break: c:)C.while?D.while(a) {if(b) c:) {if(b) break: c;}

考题 在c语言中while循环和do-while循环的主要区别是() A.do-while循环体内可以使用break语句,while循环体内不能使用break语句B.do-while的循环体至少无条件执行一次,while的循环体不是C.do-while循环体可以使用continue语句,while循环体内不能使用continue语句D.while的循环体至少无条件执行一次,do-while的循环体不是

考题 while和do-while循环的主要区别是A.do-while的循环体至少无条件执行一次B.while的循环控制条件比do-while的循环控制条件更严格C.do-while允许从外部转到循环体内D.do-while的循环体不能是复合语句

考题 下列写法中等价的是( )。A.若x=1,while(x!=x)与while(x)B.若x=0,while(x!=x)与while(x)C.若x=1,while(x!=0)与while(!x)D.若x=0,while(x==0)与while(x)

考题 The idea for the new project came to Jack ______ to his study recently.A. while devotingB. while devoting himselfC. while he was devotedD. while devoted

考题 while(a)等价于() A、while(a=0)B、while(a==0)C、while(!a)D、while(a!=0)

考题 while与do-while相比较,描述正确的是()。A、第一次循环条件为真,while与do-while都执行,无区别B、第一次循环条件为真,while与do...while都不执行C、第一次循环条件为真,while执行,do...while不执行D、第一次循环条件为假,while不执行,do...while执行

考题 数据结构与算法里,while循环属于当型循环,其循环变量的初值写在()A、while语句{}中的第一句B、while语句{}中的最后一句C、while语句的上面D、while语句的下面

考题 下面关于while及do-while说法中,描述正确的是()A、while与do..while没有区别B、while是先执行后判断C、do..while是先判断后执行D、while是先判断后执行,条件为真时执行

考题 do……while 和 while……do 有什么区别?

考题 循环嵌套可以包含的格式有()A、while循环嵌套do...while循环B、for循环嵌套while循环C、for循环嵌套do...while循环D、for循环嵌套for环

考题 下面关于程序中使用while描述正确的是()。A、while结构中可以嵌入if结构B、while结构中可以嵌入switch结构C、while结构中不能嵌入选择结构D、if选择结构中可以包含循环结构while

考题 在循环结构中while循环的while()后没有分号,do-while循环的while()后一定要有一个分号。

考题 下列循环语句中有语法错误的是()。A、while(x=y)5;B、while(0);C、doprintf(“%d”,a);while(a--);D、dox++while(x==10);

考题 do-while循环中,根据情况可以省略while。

考题 While deploying a new application module, the software vendor ships the application software along with appropriate SQL plan baselines for the new SQLs being introduced. Which two statements describe the consequences?()A、The plan baselines can be evolved over time to produce better performance.B、The newly generated plans are directly placed into the SQL plan baseline without being verified.C、The new SQL statements initially run with the plans that are known to produce good performance under standard test configuration.D、The optimizer does not generate new plans for the SQL statements for which the SQL plan baseline has been imported.

考题 下列单片机程序语句中,能有效实现无限循环的是()A、while(!0);B、while(0);C、while(!1);D、while(!2);

考题 A customer is deploying a wireless core feature set using autonomous access points and requires Layer 2 roaming. What is a requirement when deploying this solution?()A、 a minimum of one Cisco 4100 Series WLAN ControllerB、 one WDS per subnetC、 a minimum of one Wireless LAN Services ModuleD、 all clients using Cisco Aironet Wireless LAN Adapters

考题 Rate your level of proficiency with deploying and managing an enterprise desktop virtualization environment, including installing and configuring Windows Virtual PC, enabling a nd managing Windows XP Mode, creating a MED -V infrastructure, administering a MED- V environment, and deploying virtualdesktop images.()A、Very HighB、HighC、ModerateD、LowE、VeryLow

考题 Rate your level of proficiency with deploying and managing an enterprise desktop virtualization environment, including installing and configuring Windows Virtual PC, enabling and managing Windows XP Mode, creating a MED-V infrastructure, administering a MED-V environment, and deploying virtual desktop images.()A、Very HighB、HighC、ModerateD、LowE、VeryLow

考题 单选题Python中,for和while可以有else语句?()A 只有for有else语句B 只有while有else语句C for,while都有else语句D for,while都没有else语句

考题 单选题在c语言中while循环和do-while循环的主要区别是()A do-while循环体内可以使用break语句,while循环体内不能使用break语句B do-while的循环体至少无条件执行一次,while的循环体不是C do-while循环体可以使用continue语句,while循环体内不能使用continue语句D while的循环体至少无条件执行一次,do-while的循环体不是

考题 单选题While deploying a new switch, you accidently connect ports 3/12 and 3/18 together, creating a loop. STP detected it and placed port 3/18 in blocking mode. Why did STP not place port 3/12 in blocking mode instead? ()A  Port 3/12 was already up and forwarding before the loop was created.B  Port priority is based on lowest priority and lowest port number.C  You connected the wire on port 3/18 last.D  None of the above, it is purely random.

考题 单选题A customer is deploying a wireless core feature set using autonomous access points and requires Layer 2 roaming. What is a requirement when deploying this solution?()A  a minimum of one Cisco 4100 Series WLAN ControllerB  one WDS per subnetC  a minimum of one Wireless LAN Services ModuleD  all clients using Cisco Aironet Wireless LAN Adapters