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SANS 503 Questions And Answers With Latest Solutions
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SANS 503 Questions And Answers With Latest Solutions
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SANS 503 Questions And Answers With LatestSolutions
IDS ANS Intrusion Detection System
IPS ANS Intrusion Prevention System
packet and datagram are interchangeable ANS packet and datagram or interchangeable
4 layers of TCP/IP Model ANS Application (HTTP,SMTP,DNS) - (Appli
Transport (TCP,UDP)
Internet (IP)
Network Access (IEEE 802.x)
TCP/IP Encapsulation of layers ANS Apes Tickle in nylon or knikers
Application (Application Payload)
Transport (TCP Header)
Internet (IP Packetheader)
Network Access (Frame Header)
OSI ANS Open System Interconnection Model
Encapsulation ANS Adding header information as a packet is passed down the TCP/IP stack (De-
encapsulation is the opposite
What is needed to de-encapsulate ANS A knowledge of what follows the currently layer the next
layer to pass to and where is starts or the size of its header
Bit ANS smallest unit 0 or 1
, Nibble ANS 4 bits or one hex
Byte ANS 8bit 2 nibbles or 2 hex
802.3 ANS Ethernet max size 1500 byes
802.11 ANS Wireless
802.15.1 ANS Bluetooth
ARP - how many bits? ANS address resolution protocol - not routeable 48 bits
IPv6 mac translation is done by? How many bits ANS Neighbor solicitation 128 bits
gratuitous ARP ANS Both sender and target mac and IP are the same. regular request will have
the target mac as 0.0.0.0 and target ip address that is different from the sender ip
Determine length of ip packet ANS ip datagram length
TCP & IP Header header length is multiplied by what ANS 4
IP offset is multiplied by what ANS 8
TTL exceed value ANS 0
length of transport protocol data ANS ip datagram total length - ip header length - protocol
header length = data bytes
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