200-150 Flashcards
Questions from 200-155 learning guides
OSI model level 1
Physical
OSI model level 2
Data link
OSI model level 3
Network
OSI model level 4
Transport
OSI model level 5
Session
OSI model level 6
Presentation
OSI model level 7
Application
What defines physical layer (L1) in OSI model?
Types of connectors and transmission media (copper, fiber optic, etc).
Low-level equipment (hubs, repeaters, media converters).
On which layer of OSI is TokenRing
L2
On which layer of OSI is CDP (Cisco Discovery Protocol)?
L2
On which layer of OSI is LLDP Protocol?
L2
On which layer of OSI is Spanning Tree Protocol (STP)?
L2
On which layer of OSI is Ethernet?
L2
What layers are the sub-layers of L2
MAC-layer (Media Access Control)
LLC-layer (Logical Link Control)
802.X standards are on OSI layer
L2
OSPF is on OSI level
L3
RIP is on OSI level
L3
ICMP is on OSI level
L3
IPX is on OSI level
L3
GRE is on OSI level
L3
Function of L4 Protocol
Flow control, process-level addressing (map ports to applications), Multiplexing/De-multiplexing, Segment/Reassemble, Establish Connections (i.e. keep alive).
L5 Layer protocols
API/RPC/NetBIOS/X25
L6 Layer functions and protocols
Translation (i.e. EBCDIC-ASCII), Encryption (IPSEC, SSL)
L7 Layer
HTTP/HTTPS
FTP
SMTP
Connection oriented protocol
TCP
Connectionless protocol
UDP
PPP is on OSI level
L2
ARP is on OSI level
L2
MAC address table old entires timeout
5 min (default)
