Shared Flashcard Set

Details

CGS 4285
Final
50
Computer Science
Undergraduate 4
06/20/2012

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Cards

Term
Can a host with a public address initiate a connection to a host with a private Nat
Definition
False
Term
What are some examples of information in a datagram that might be usd to decide wether to drop or pass a packet
Definition
src, dst, prot, source port, dest port
Term
Port of wellknown SMTP Email
Definition
port 25/tcp
Term
telnet
Definition
port 23/tcp
Term
ssh
Definition
22/tcp
Term
snmp
Definition
161/udp
Term
tftp
Definition
69/udp
Term
Ports < X are used for administrative/root services? X=?
Definition
1024
Term
What are the two basic types of routing protocols
Definition
IGP & EGP
Term
What are the two types of internal routing protocols
Definition
Distance Vector & Link State
Term
What IP protocol does RIP use to exchange information
Definition
UDP
Term
What IP protocol does OSPF use to exchange information
Definition
TCP/UDP
Term
What IP protocol does BGP use to exchange information
Definition
TCP
Term
Can you use RIP v1 on modern classles netowrk
Definition
no its not modern
Term
What is the protocol used to exchange routing information between organization on the internet today
Definition
EGP
Term
What are two WAN tech that use PPP for framing
Definition
Serial Links, POS
Term
Standard for most cable modems?
Definition
DOCIS
Term
Topology of Frame Relay
Definition
Star based topology- underneath it all
Term
Topology of ATM
Definition
Multiple Star Topology
Term
The highest speed connection over sonet are done with what framing? Why
Definition
Will often use PPP over the ethernet or ATM to provide point to point service
Term
ADSL speed are limited by what
Definition
Dependent on distance
Term
ATM cells are how many octets long
Definition
53
Term
ADSL and cable are used by who
Definition
Residential uses
Term
ATM and Frame Relay used by who
Definition
Buisnnesses
Term
OC3 is what data rate?
Definition
155 mbits
Term
OC12 is what data rate?
Definition
622 mbits
Term
OC48 is what data rate?
Definition
2.4 gbits
Term
OC192 is what data rate?
Definition
9.6 gbits
Term
What is the class and range of assign addresses for multicast
Definition
224.0.0.0 - 234.256.256.256 Class D
Term
Two Major multicast routing protocols
Definition
DVMRP PIM
Term
What is the protocol that host use to tell router that they wish to recieve a multicast group
Definition
IGMPV2
Term
If a multicast packet arrives on an interface, but according to the routing table you would use a different interface to reach the source, will the router forward that packet at all?
Definition
No
Term
What would be the Ethernet destination address of a multicast packet with an IP destination of 226.2.2.2?
Definition
01-00-5e-2-2-2
Term
What are two broad categories for software based VPN
Definition
Packet & Strings
Term
What are the two major pack encapsulation VPN standars in use today
Definition
GRE & IPSEC
Term
What is the IP protocol of a GRE
Definition
47
Term
What would the protocol type in the GRE header be for a IPV4 pack encapsulated in a GRE packet
Definition
0x800
Term
weak space
Definition
weakness of PPTV2
Term
What is the IPSEC mode used to provide a true VPN tunnel
Definition
ESP
Term
What is the IP Protocol used for IPSEC ESP
Definition
51
Term
What are the two types of radio wireless transmissions
Definition
FHSS DSSS
Term
802.11 b
Definition
2.4 GHZ 11mbps
Term
802.11 a
Definition
5.0 ghz 54 mbps
Term
802.11 g
Definition
2.4 54 mbps
Term
how many bits is a wireless ethernet address
Definition
48 bits
Term
When wireless talks directoy to another wireless station directly its called
Definition
AHOC
Term
CSMA/CA
Definition
Carrier sense multiple access with collision avoidance
Term
How many bits are in an IPV6
Definition
128 bits
Term
What is the name of the algorithm that is used to take an end stations MAC address
Definition
EUI 64
Term
How many bits does a network and host use
Definition
64 - 64
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