this is a big case study and I need help with some question. I will be thankful if you will help me with these throubles. Below is case study and some questions

ol and why Is the restrictive covenant (non-competition clause) that Sidney and Nancy signed with National one that would be enforced by the courts? Explain your answer thoroughly. The Case: Sidney Greenwood and Nancy Fitzgerald had worked for National Business Systems, an international computer repair service, for ten years. It therefore came as a surprise when they both received lay-off notices on a Friday afternoon late in December 2010. Both were given severance packages that matched their seniority so they decided that this might be the catalyst to launch their own business repairing computers and related equipment for businesses in their community. Both were single, so no one else would be affected if the business failed. Sidney had graduated from a community college with a diploma in computer technology while Nancy had left high school after grade twelve, having taken several business courses prior to graduating They decided to establish a partnership and to call their firm Compact Business Systems, closely mimicking a large successful firm in another city called Compaq Business Systems, Since they had no plans to expand their business beyond their own community, they did not believe that the similarity in names would pose a problem. In fact, Sidney and Nancy so admired the colours used in the Compaq Business Systems' logo that they used similar gradient tones of red on all their signage and advertisements. Sidney and Nancy also named their premium same day service: "Presidio Service" (a name similar to, but not exactly the same as, one already trademarked by Compaq Business Systems) and this became their most popular standard of service outselling their three day "Invest Service" by a margin of two to one. Sidney and Nancy gave no thought to the non-competition clause they had signed with National when they were hired. All employees of National were required to sign a non-competition covenant stipulating that they would not work for a competitor or start up a competitive business within three years after leaving National Business Systems. There was no geographic restriction contained in the non-competition clause, as National Business Systems had customers all over the world. In considering their start up costs, the pair determined that they would need a small shop to conduct their business from, some testing and repair-equipment, a modest inventory of electronic components and a delivery van to pick-up and return equipment they would repair They would also need to do some advertising in the local newspaper to get their name in front of CICLUTC Components and a very var pienu They would also need to do some advertising in the local newspaper to get their name in front of the public. Pooling their resources they found they had a shortfall in start-up capital of some $50,000 Because neither Sidney nor Nancy owned a home or had any appreciable assets, the bank would not lend them the money without a guarantor. Nancy's uncle Fred was fairly well established and agreed to sign a continuing guarantee for the necessary funds, insisting that "this was as much as he was prepared to be on the hook for', so they better make do." This limitation however, was not written into the agreement with the bank, nor was the bank made aware of it Compact Business Systems opened for business on March 1, 2011. In the first couple of months after start-up the business was going extremely well. On April 15, 2011, one of Compact's customers - Lucky Accounting - delivered one of its (Lucky's) desktop HQ computers to Compact. Compact was asked to upgrade the computer and install a new operating system known as Vulnerable. When Lucky's employee returned to Compact on April 21" to pick up the HQ computer Compact informed the Lucky employee that he was out of luck because the HQ computer had been stolen in a break-in the night before. Neither Compact nor Lucku had any insurance coverage on the Ho comuter Comnact had installed surveillance