Test 2

Question 1

4 reasons a STAR network is better suited

Answer 1

1. It is simple to add a new node
2. If one node or cable is broken, the others are unaffected
3. Data ISN’T transmitted to every computer so there are LESS DATA COLLISIONS compared to other topologies
4. SOFTWARE and BACKUPS can be dealt with CENTRALLY

Question 2

3 ways to improve security on a network

Answer 2

1. ENCRYPTION (intercepted data is unreadable without key and is USELESS)
2. ANTI-MALWARE software protect from VIRUSES
3. NETWORK POLICY to define ACCEPTABLE USE (eg no USBs)

Question 3

3 security problems and solutions

Answer 3

1. Downloading MALWARE from internet -> BLOCKING poeple from accesssing INSECURE websites
2. Leaving door open to office -> LOCKING doors to room with COMPUTERS
3. Taking SENSITIVE data home on USB sticks -> blocking USB ports or defining this is ACCEPTABLE USE documents

Question 4

How could fragmentation occur on an ordering system?

Answer 4

1. Orders SAVED and then DELETED
2. New orders’ files are SAVED by OS, which could be LARGER than GAPS left
3. Order files become split up

Question 5

How does defragmentation speed up computers?

Answer 5

1. FIles on hard dick are moved to be stored together
2. And empty spaces on hard disk are COLLECTED togher to PREVENT further fragmentation
3. Read/write doens’t have to move bacl and forth to access data as many times, SPEEDING up data access

Question 6

Effects of always upgrading smartphones

Answer 6

1. PARENTS feel under pressure from CHILDREN who feel under pressure from PEERS
   - -> phones are often expensive
   - -> SOCIAL = contributing to digital divide
2. INCENTIVISES technology companies to create less DURABLE phones so they need to be REPLACED more
3. Phones are often not REPLACABLE or RECYCLABLE –> A lot of E-Waste (even though still works)
4. Leads to E-Waste being sent to lower income countries + toxic chemicals seep into ground and cause pollution