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32 Cards in this Set
- Front
- Back
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What is the leading bit pattern of a Class A address?
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0
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What is the leading bit pattern of a Class B address?
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10
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What is the leading bit pattern of a Class C address?
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110
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What is the range of Class A addresses?
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1.0.0.0 - 126.255.255.255
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What is the range of Class B addresses?
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128.0.0.1 - 191.255.255.255
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What is the range of Class C addresses?
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192.0.0.1 - 223.255.255.255
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What is the maximum number of Class A networks?
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127
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What is the maximum number of Class B networks?
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16 thousand
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What is the maximum number of Class C networks?
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2 million
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What is the maximum number of nodes on a Class A network?
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16 million
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What is the maximum number of nodes on a Class B network?
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65 thousand
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What is the maximum number of nodes on a Class C network?
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254
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What does a network address of all zeroes indicate?
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the local network
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What does a network address of all ones indicate?
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all networks
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What does a node address of all zeroes indicate?
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the local machine
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What does a node address of all ones indicate?
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all nodes on a specified network
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How does subnetting reduce the routing table size for internal routers?
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routers only need to know addresses for hosts on their subnets and the network addresses for other subnets, rather than for all hosts
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What does ARP do?
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maps a MAC address to an IP address
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Does authorization prevent all rogue DHCP servers from handing out addresses?
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no- only 2000 DHCP servers will check to see if they are authorized
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Who is allowed to authorize DHCP servers
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only Enterprise Admins
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How does a 2000 DHCP server determine if it is authorized?
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it sends a DHCPINFORM message to AD at startup and periodically afterward
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What two pieces of information are necessary to create a scope?
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a range of IP addresses, and a subnet mask
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How can a subnet mask be changed after creating a scope?
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it can't- the scope must be deleted and recreated
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Why can't DHCP servers on one segment normally service DHCP requests on other segments?
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DHCP requests are broadcasts, which do not cross routers
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What DHCP task can DHCP Administrators not perform?
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authorizing a DHCP server
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What permission do DHCP Users have?
Who might be placed in this group? |
the ability to view information provided by DHCP servers- 1st level support may be placed in this group
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What command is used to assign a client to a DHCP class?
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ipconfig /setclassid
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What is a multicast?
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a data transmission where data is sent once, but recieved by many systems listening to a multicast address
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What are multicasts normally used for?
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streaming media
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What requirement must be met for an application to get a MADCAP address?
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it must support the MADCAP API
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How is the DCHP database backed up?
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stop the DHCP service, copy the DCHP directory, and back up HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DHCPServer
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Can a DHCP scope be extended after creation?
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yes
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