OSI

Question 1

Layer 2 Devices

Answer 1

NIC
Switch
Bridge
MAC

Question 2

What OSI Layers is a NIC?

Answer 2

Layer 2

Question 3

What OSI Layers is a Switch?

Answer 3

Layer 2 except for more advanced switch devices

Question 4

What OSI Layers is a Bridge?

Answer 4

Layer 2

Question 5

What OSI Layers is a MAC?

Answer 5

Layer 2

Question 6

Layer 3 Devices

Answer 6

Router
Multi-Layer Switches

Question 7

What OSI Layers is a Router?

Answer 7

Layer 3

Question 8

What OSI Layers is a Multi-Layer Switch?

Answer 8

Layer 3

Question 9

Layer 3 Protocols

Answer 9

IPv4
IPv6
ICMP

Question 10

What OSI Layers is ICMP (Internet Control Message Protocol)?

Answer 10

Layer 3

Question 11

Layer 4 Protocols

Answer 11

TCP (segment)
UDP (datagram)

Question 12

Layer 4 Devices

Answer 12

Firewall
Load balancer

Question 13

Layer 5 Protocols

Answer 13

H.323
NetBIOS

Question 14

Explain OSI Layer 6, Presentation Layer

Answer 14

Formats the data to be exchanged and secures that data with proper encryption.
Data Formatting
Encryption

Question 15

Things Layer 6

Answer 15

HTML, XML, PHP , Java script
Text
Pictures
Video
Encryption Algorithms (TLS/SSL)

Question 16

Explain OSI Layer 7, Application Layer

Answer 16

Provides application-level services where users communicate with the computer.

Question 17

Layer 7 things

Answer 17

Email apps
Web browsing (http)
DNS
FTP/SFTP
RDP (Remote Access)
Simple Network Management Protocol (SNMP)

Question 18

What OSI Layer Source and Destination port included?

Answer 18

Layer 4 TCP/UDP