Refer to the exhibit. How many broadcast domains exist in the exhibited topology?dc7fe144cddd7e03e1f5f5398da13a2f.jpg

The following ( ) topology can use hub as connector. A: bicyclic B: monocyclic C: bus shape D: stellate

In a ________topology, all the devices on the network are connected to a common cable. A: sta B: tree C: us D: Mesh

You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance which is named Instance01. Instance01 contains a database which is named SellingHelp. There isthe Products table in the SellingHelp database. Now according to the company requirement, the Products table has to be replicated to the SQL Server instances installed in laptopscomputers. You have to create a Replication topology to perform this. The Products table is updated from Instance01 when the laptops reconnect to the corporate network. The Products table on Instance01 is frequently updated between reconnections. You must make sure that you can implement the Replication topology along with the Subscription type successfully and meanwhile reduce the bandwidth usage to the least.  So what action should you perform to achieve this goal?（） A: You should implement the Snapshot Replication topology along with a Push Subscription.  B: You should implement the Merge Replication topology along with a Pull Subscription.  C: You should implement the Snapshot Replication topology along with a Pull Subscription.  D: You should implement the Transactional Replication topology along with a Pull Subscription

6.Every network has a “shape” which is normally referred to its _________ . A: Bus B: topology C: Star D: Tree

Under which two circumstances should Spanning Tree Protocol be implemented？ （） A:  to ensure a loop-free topology B:  to protect against user-side loops C:  when a VLAN spans access layer switches D:  for the most deterministic and highly available network topology E:  because of the risk of lost connectivity without Spanning Tree Protocol

Hadoop运行的是MapReduce任务，类似地，Storm运行的任务叫做 。? Tuple|Bolt|Spout|Topology

Topoisomerase II catalyzes the transient breaking and rejoining of two strands of duplex DNA which allows the strands to pass through one another, thus altering the topology of DNA.

在设置布线规则时，设置布线宽度的规则是（）。 A: Routing Layers B: Routing Corners C: Routing Topology D: Width

下列关于Storm框架，描述正确的有？ A: worker:每个worker进程都属于一个特定的Topology B: executor：executor是产生于worker进程内部的线程 C: task:实际的数据处理由task完成 D: 在Topology的生命周期中，每个组件的task数目是不会发生变化的，而executor的数目却不一定