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     Five Different Types Of Relationship::    

Q1. Assume six devices are arranged in a mesh topology. How many cables are      needed? How many ports are needed for each device? Answer:   Cables needed 15 and, Each device needs to be connected to 5 other devices. So, each device needs to have 5 ports. Six devices times five ports equals 30 total ports . Q2. We have two computers connected by an Ethernet hub at home. Is this a LAN or a WAN? Explain the reason? Answer:   Ethernet is used in a LAN and has a limit to the length of cable used. Wireless networking is also considered a LAN. Your connection to you ISP, however, would be considered part of a MAN. MAN - Metropolitan Area Network is used in cities and towns and uses fiber optics, coax cables, telephone wires (DSL), and, in some cases, wireless. Q 3. In the ring topology in Figure 1.7, what happens if one of the stations is unplugged? Answer:  In  a ring topology, unplugging one station interrupts the ring. ...

Writer: M.Hunain.Zahid SQL Commands: Software which is use to perform this commands: Copy This Link And Past In your Google Chrome Your Downloading Is Start automatically And Install The Software in Your PC Or Laptops.  Oracle Database Express Edition (XE) Release 18.4.0.0.0 (18c) https://download.oracle.com/otn-pub/otn_software/db-express/oracle-database-xe-18c-1.0-1.x86_64.rpm 1.TO CLEAR SCREEN  COMMAND: SQL> CLEAR SCREEN 1.Create table: SQL> connect SQL> PASSWORD SQL> create table student(S ID number , NAME  varchar2(10)  ,Address varchar2(10)  ); SQL> Table created. 2. To show table: SQL> desc student; 3.Insert Data in table: SQL> insert into student (this is table name ) values (1, ‘JUNIAD’ , ‘ISLAMABAD’); SQL> insert into student (this is table name ) values (2, ‘ALI ’ , ‘Rawalpindi’); SQL> insert into student (this is table name ) values (3, ‘MUNEEB KHAN’ , ‘LAHORE’);...