Define the three categories of security controls (Session One – CISSP OER) and provide two examples of each category.
Answer the following questions

Question 1 (8 points)

OSI Model has 7 layers as following:

Application Layer
Presentation Layer
Session Layer
Transport Layer
Network Layer
Data Link Layer
Physical Layer
Identify the corresponding layer of the OSI model each group of protocols belong to by filling in the number for the layer.

____ NFS, SAP, SQL

____ TCP, UDP

____ AES, CDR

____ DSL, ISDN,

____ IP, ICMP, OSPF, RIP

____ CSMA/CD, PPP, ARP, 802.x

____ DNS, FTP, LDAP, HTTP

Question 2

Which of the following attacks requires the use of multiple computers?

options:

DoS
Virus
DDoS
Worm
Question 3 In which access control mechanism does the operating system determine the access

control permissions for subjects?

options:

Role-based
Mandatory
Token-based
Discretionary

Question 4 How does multi-factor authentication improve security?

options:

It denies attacker multiple times.
By using biometrics, no other person can
authenticate.

By using a combination of authentications, it is
more difficult to gain access by pretending to be an authorized user.

It restricts users to smaller spaces.
Question 5: Map the definition to the corresponding layer of the OSI model.

Application Layer 1. Responsible for co-ordinating communication between systems
B. Presentation Layer 2. Responsible for putting data packets into data frames from the layer below

C. Session Layer 3. Responsible for availability of intended communication partner

D. Transport Layer 4. Responsible for transmitting data from node to node with switching and routing technologies

E. Network Layer 5. Responsible for negotiating data transfer syntax

F. Datalink Layer 6. Responsible for multiplexing upper-layer applications

G. Physical Layer 7. Responsible for providing hardware means for sending and receiving data

Question 5 options:

A 7, B 5, C 1, D 6, E 4, F 2, G 3
A 3, B 1, C 5, D 6, E 4, F 2, G 7
A 3, B 5, C 1, D 4, E 6, F 2, G 7
A 3, B 5, C 1, D 6, E 4, F 2, G 7
Question 6 (10 points)

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