csci322-l1m1

Question 1

System Administrator

Answer 1

is a person who manages one or more computer systems.

Question 2

System Administrator have close relationships with?

Answer 2

Network Management

Question 3

Computer System

Answer 3

any system running a operating system and capable of providing services to a user base or other hosts.

Question 4

Role of the Systems Administrator

Answer 4

is to maximize a system.

1. Reliability
2. Integrity
3. Security
4. Performance
5. Efficiency
6. Ease of use
7. Order

Question 5

Reliability

Answer 5

• measure of the percentage of time a machine, service and network is usable
• mail, web and file sharing

Question 6

Reliability and ??? go hand in hand.

Answer 6

Service level agreements (SLA)

Question 7

How to measure of Reliability?

Answer 7

uptime which shows how long a system has been up.

Question 8

Which tools can use to monitor services such as POP/IMAP, HTTP and FTP?

Answer 8

• nagios

- cacti

Question 9

Reliability 4 9s?

Answer 9

4 9’s = 99.99% = 52 minutes downtime per year.

not included scheduled downtime!

Question 10

Reliability 5 9s?

Answer 10

5 9’s = 5 minutes downtime per year.

not included scheduled downtime!

Question 11

Integrity?

Answer 11

Data stored on a computer system can be trusted not to be LOST or DAMAGED.

Question 12

Integrity is largely effected by?

Answer 12

1. File system design e.g. disk failures
2. Administration procedures e.g. backup
3. Protocol and hardware design e.g. security

Question 13

Solutions to ensure Integrity?

Answer 13

Bacula, Amanda, Legato, Tivoli, TripWire

Question 14

Integrity and ??? go together.

Answer 14

Security

Question 15

Security

Answer 15

Data stored on in transit through a computer network can be RELIED upon not to be;

• ALTERED
• DISCLOSED to UNAUTHORIZED PARITIES

Question 16

Bacula

Answer 16

Bacula is a set of computer programs that permit managing backup, recovery, and verification of computer data across a network of computers of different kinds.

Question 17

Security is effected by …..?

Answer 17

procedures and policy

Question 18

High Security means ??? for the user

Answer 18

Lower Useability

Question 19

Snort (Security tools)

Answer 19

Snort is a free and open source network intrusion prevention system (NIPS) and network intrusion detection system (NIDS)

Question 20

Performance influence by?

Answer 20

1. Underlying hardware
2. Operating System
3. Software design and bugs in software
4. Tuning of operating system.
5. Administration and End User practices

Question 21

System Administrator Skills 1 ?

Answer 21

Programming

Question 22

System Administrator Skills 2 ?

Answer 22

Systems

Question 23

System Administrator Skills 3 ?

Answer 23

Support

Question 24

System Administrator Skills 4 ?

Answer 24

Install hardware

Question 25

System Administrator Skills 5 ?

Answer 25

Install and maintain software

Question 26

System Administrator Skills 6 ?

Answer 26

Set and maintain configurations

Question 27

System Administrator Skills 7 ?

Answer 27

Capacity Planning and Performance Tuning

Question 28

System Administrator Skills 8 ?

Answer 28

Monitoring the systems

Question 29

System Administrator Skills 9 ?

Answer 29

Diagnose and fix problems

Question 30

System Administrator Skills 10 ?

Answer 30

Evaluate and recommend products

Question 31

System Administrator Skills 11 ?

Answer 31

Maintain Local Documentation

Question 32

System Administrator Skills 12 ?

Answer 32

Write procedures and policy

Question 33

System Administrator Skills 13 ?

Answer 33

Enforcement and arbitration

Question 34

System Administrator Skills 14 ?

Answer 34

Advise and educate users and managements

Question 35

System and Network Admin?

Answer 35

Same