Information Systems 3
Suggested solutions to
Practice SAC XYZ Engineering
1.
2. Four
workgroups - data in/info out--> who for
There are clearly many possible answers to this
(a) Designers - customer order, customer requirements/product designs —> manufacturing,
updated project schedules —> team manager
(b) Administration - customer details, customer orders, staff work
hours/staff payroll reports —> admin manager, customer orders —> design
team
( c ) Manufacturing - customer order, design plans/ updated project schedules,
job completion reports —> team or project manager
(d) Management - sales for previous month —> sales trends for past 12 months
3. Star topology where a number of stars are connected to a backbone
switch.
Evidence in scenario is use of switches which from the cases I have across
indicate star topology.
Appropriateness of the topology - - manageable, able to
segment the network to separate the design team from the other groups, scalable
to allow network to be expanded in the event of growth.
4. Design team : large files (20-100Mb) place
substantially higher demands on communications infrastructure and servers than
general admin requirements. The 100Mbps connection throughout the whole network
may be a bottleneck for these large files. Should investigate
whether increasing the server network connections to 1Gbps and the design team
switch-backbone connection to 1Gbps will improve performance. Data
server configuration and performance should also be investigated
.
Manufacturing team :
UTP may be unsuitable in factory environment due to interference by electrical
equipment. This should be investigated - may need to be replaced with STP.
Alternatively, the manufacturing team
switch may have an intermittent fault causing problems with reliability.
5. All the ‘usuals’ - Connect servers &
switches to UPS , reputable equipment brands,
preventive maintenance, reduduancy in the server
hardware eg. RAID I (mirroring), RAIDV, antivirus
software
Note : backups are not
acceptable answer here as they don't help reliability
6. Firewall on Internet connection, anti virus software on PC's.
Other possiilities (all the ‘usuals’ )—> User logins, password protection,
enforced password changes etc
7. (Note : backups not really emphaized in this AOS but I included it anyway. Qusetions that may be asked include:
- what do you backup
- when are backups done
- how long do they take
- what backup hardware & software is ued
- where is the media held - offsite/onsite
- how long are backups retained for etc.etc