study 5

Question 1

“ACID” property in DBMS stands for?

Answer 1

1. Atomicity
2. Consistency
3. Isolation
4. Durability

Question 2

Atomicity

Answer 2

requires that each transaction is “all or nothing”:

if one part of the transaction fails, the entire transaction fails, and the database state is left unchanged.

Question 3

Consistency

Answer 3

ensures that any transaction will bring the database from one valid state to another.

Question 4

Isolation

Answer 4

ensures that the concurrent execution of transactions results in a system state that would be obtained if transactions were executed serially, i.e. one after the other.

isolation is the main goal of concurrency control.

Question 5

Durability

Answer 5

means that once a transaction has been committed, it will remain so, even in the event of power loss, crashes, or errors.

Question 6

Final Acceptance Testing two major parts:

Answer 6

1. Quality Assurance Testing QAT)
   focusing on the technical aspect of the application
2. User acceptance testing: UAT)
   focusing on functional aspect of the application.

Question 7

The testing of an individual program or module.

It uses set of test cases that focus on control structure of procedural design.

Answer 7

Unit Testing

These tests ensures internal operation of the programs according to the specification.

Question 8

A series of tests designed to ensure that modified programs, objects, database schema, etc , which collectively constitute a new or modified system, function properly.

Answer 8

System Testing

These test procedures are often performed in a non-production test/development environment by software developers designated as a test team

Question 9

A hardware or software test that evaluates the connection of two or more components that pass information from one area to another.

Answer 9

Interface or integration testing:

The objective it to take unit tested module and build an integrated structure dictated by design

Question 10

a Protocol that supports the creation of secure virtual private dial-up networks over the Internet.

Answer 10

L2F

Question 11

three part of ipsec

Answer 11

1. AH
2. ESP
3. IKE

Question 12

what part of IPSEC not work NAT

Answer 12

(AH) Authentication Header

Question 13

the two sub protocols of IKE

Answer 13

1. Oakley = use Diffie Hellman for keys agreement

2. ISAKMP = manage the keys

Question 14

SA is setup by what sub protocols of IKE

Answer 14

ISAKMP

Question 15

RPC is at what level of the ISO model?

Answer 15

5 Session

Question 16

Errors in critical modules are detected earlier in what software testing?

Answer 16

The bottom-up approach

Question 17

message digest is another word for

Answer 17

hash

Question 18

A Pseudo flaw is?

Answer 18

An apparent loophole deliberately implanted in an operating system program as a trap for intruders.

Question 19

An identity-based access control is a type of ? Access Control that is based on an individual’s identity.

Answer 19

Discretionary Access Control (DAC)

Question 20

Physically securing backup tapes from unauthorized access is obviously a security concern and is considered a function of the:

Answer 20

Security Operations Domain.

Question 21

In IPSec, if the communication is to be gateway-to-gateway or host-to-gateway

Answer 21

Tunnel mode

Question 22

FCOE is a protocol that rides over Ethernet like iSCSI but is not itself routable

Answer 22

FCOE - Fiber Channel over Ethernet

Question 23

computer forensics:

To prevent sought-after information from being altered

Answer 23

Data Protection

Question 24

computer forensics:

All information and data required should transferred into a controlled location;

Answer 24

Data Acquisition
Each device must be checked to ensure that it is write protected. This may be achieved by using a device known as write blocker.

Question 25

computer forensics: is a process that allows one to obtain bit-for bit copy of a data to avoid damage of original data or information when multiple analyses may be performed.

Answer 25

Imaging

Question 26

computer forensics: | This process consist of identification and selection of data from the imaged data set.

Answer 26

Extraction

Question 27

computer forensics: is used to obtain prior indicators or relationships, including telephone numbers, IP addresses, and names of individuals from extracted data.

Answer 27

Interrogation

Question 28

computer forensics: This process converts the information extracted to a format that can be understood by investigator. It includes conversion of hexadecimal or binary data into readable characters or a format suitable for data analysis tool.

Answer 28

Investigation/ Normalization

Question 29

Which type of lock uses a numeric keypad or dial to gain entry?

Answer 29

Cipher lock

Question 30

What are the criteria which are often called the five rules of evidence:

Answer 30

``` 1. authentic ,2.accurate 3. complete 4. convincing 5. Admissible. ```

Question 31

Intellectual property is divided into two categories:

Answer 31

Industrial and Copyright

Question 32

A Public Key Infrastructure (PKI) provides what? (5)

Answer 32

1. confidentiality, 2. access control, 3. integrity, 4. authentication 5. non-repudiation.

Question 33

the 3 steps required for a Kerberos session?

Answer 33

1. Principal P1 authenticates to the Key Distribution Center (KDC), 2. principal P1 receives a Ticket Granting Ticket (TGT), 3. and principal P1 requests a service ticket from the Ticket Granting Service (TGS) in order to access the application server P2.

Question 34

? is the variation in the time of arrival at the receiver of the information.

Answer 34

Jitter

Question 35

is the delay between the sender and the receiver decoding it

Answer 35

Latency

Question 36

The 3 part of a relational model?

Answer 36

1. Structural: The model structure is described in terms of relations , tuples , attributes and domains . 2. Manipulative: Defines how the data in the model will be accessed and manipulated. 3. Constraints: The constraints determine valid ranges and values of data to be included in the model.

Question 37

In the Bell-LaPadula model, the Star-property is also called:

Answer 37

The confinement property