hh

Question 1

3 Factors converging to give rise to new technology:

Answer 1

-Rise of the Services Economy
-Complexity
-User generated systems

Question 2

ENUM STORAGE DEVICE HIERARCHY

Answer 2

-Registers
-Cache
-main memory
-non volatile memory
-hdd
-optical disk
-magnetic tapes

Question 3

TWO clustering systems

Answer 3

symmetric/hot standby
asymmetric/load balancing

Question 4

ENUM client-server architectural requirements

Answer 4

-reliable, robust communication between client and server
-client-server cooperation
-servers control data/services that the client accesses
-servers handle conflicting requests
-application processing is distributed between client and server

Question 5

ENUM common network attacks

Answer 5

-tcp hijacking
-dos
-ddos
-malware & spyware
-insider attacks
-packet sniffing
-exploiting software bugs, buffer overflows
-social problem
-finding a way into the network

Question 6

principles

Answer 6

*abstraction - dealing with generic form
*bunding - building blocks
*interoperability - platforms are open systems
*evolution - tech is not static, changes through time

Question 7

dealing with generic form

Answer 7

abstraction

Question 8

building blocks

Answer 8

bunding

Question 9

platforms are open systems

Answer 9

interoperability

Question 10

tech is not static, changes through time

Answer 10

evolution

Question 11

bridge between the different components

Answer 11

interface

Question 12

software solutions

Answer 12

application -

Question 13

intermediary between hardware and software/users

Answer 13

operating systems -

Question 14

hardware and networking components

Answer 14

infrastructure -

Question 15

any mechanism for controlling access of processes or users to
resources defined by the OS

Answer 15

Protection –

Question 16

defense of the system against internal and external attacks

Answer 16

Security –

Question 17

one or more applications available via the
Internet (i.e., word processor)

Answer 17

Software as a Service (SaaS) –

Question 18

software stack ready for application use
via the Internet (i.e., a database server)

Answer 18

Platform as a Service (PaaS) –

Question 19

servers or storage available over
Internet (i.e., storage available for backup use)

Answer 19

Infrastructure as a Service (IaaS) –