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CTI-120 Chapter 2.
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CTI-120 Chapter 20-1023 - ANS-Well known ports
1024 - 49,151 - ANS-Registered Ports
49,153, - 65535 - ANS-Dynamic and Private Ports
6 - ANS-Encryption of network data occurs at what OSI layer
A database of records that maps MAC addresses to IP addresses. The ARP table is stored on a
computer's hard disk where it is used by the ARP utility to supply the MAC addresses of network
nodes, given their IP addresses. - ANS-ARP Table
Ability to change modes to act as a hub - ANS-Features to consider when selecting a switch
include all the following, EXCEPT
added information as data is encapsulated
72 bit total
direction source etc - ANS-overhead
Address Resolution Protocol. Resolves IP addresses to MAC addresses. - ANS-ARP
all computers on the LAN share the same channel or frequency to transmit data -
ANS-baseband
Also known as a protocol suite, multiple protocols that work together to provide a network
service or application. - ANS-Protocol stack
An attack that sends numerous packets to the switch, each of which has a different source MAC
address, in an attempt to use up the memory on the switch. - ANS-MAC Flood
Application - ANS-What layer of the OSI model does the user interface with
Application - ANS-Which layer in the OSI model is where HTTP, FTP, and POP3 reside?
Application Layer
Presentation Layer
Session Layer
Transport Layer
Network Layer
Data Link Layer
, Physical Layer - ANS-OSI MODEL
Application Layer - ANS-Layer 7 is called the ______________
Application Layer - ANS-Protocols used in this layer include HTTP, FTP, Telnet, POP3 and SSH.
bridges, NICS, switches and WAPs - ANS-___________ are found at Layer 2.
CAM Table - ANS-Memory that is set aside in switches to store the MAC address to port
translation table.
Data link - ANS-Which layer in the OSI model do MAC addresses and switches use?
Data Link - ANS-Which layer of the OSI model includes VLANs?
Data link layer
USES THE MAC ADDRESS
Hardware uses host MAC for frame direction
mapped by MAC - ANS-Layer 2 switch
Data Link Layer - ANS-Layer 2 is called the ______________
Data Link Layer - ANS-The message is transmitted using a NIC and a MAC address at this
layer.
Determine how to transfer data over physical layer
Uses NIC and Bridges and Switches and Waps
Standards 802.3 and 802.5
Error detection but not correction
USES FRAMES
USES MAC ADDRESS - ANS-Datalink layer
encapsulated - ANS-As an administrator delves into a packet of data with his protocol analyzer,
he notices that the frame size is bigger than the packet size. This is because the packet is
________ inside the frame
Established = TCP connection
Close wait = remote end closed now waiting for app to close
Listening = waiting and ready for connection
Time wait = client waiting after closing for any packets left on network - ANS-Terms for Session
Layer
Frames - ANS-Protocol Data Unit (unit of measurement) at Layer 2
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