Answer the following questions

Question 1 (8 points)

OSI Model has 7 layers as following:

7. Application Layer

6. Presentation Layer

5. Session Layer

4. Transport Layer

3. Network Layer

2. Data Link Layer

1. 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:

Question 3 In which access control mechanism does the operating system determine the accesscontrol permissions for subjects?

options:

Question 4 How does multi-factor authentication improve security?

options:

Question 5: Map the definition to the corresponding layer of the OSI model. 

A. Application Layer   1. Responsible for co-ordinating communication between systemsB. Presentation Layer  2. Responsible for putting data packets into data frames from the layer belowC. 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 technologiesE. Network Layer        5. Responsible for negotiating data transfer syntaxF. Datalink Layer         6. Responsible for multiplexing upper-layer applicationsG. Physical Layer        7. Responsible for providing hardware means for sending and receiving data 

Question 5 options:

Question 6 (10 points)

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

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