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Class A Address Space
What is the IP range, subnet mask, and private IP range for Class A?
- Range: 1.0.0.0 ~ 126.255.255.255
- Subnet Mask: 255.0.0.0
- Private Range: 10.0.0.0 ~ 10.255.255.255
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Class B Address Space
What is the IP range, subnet mask, and private IP range for Class B?
- Range: 128.0.0.0 ~ 191.255.255.255
- Subnet Mask: 255.255.0.0
- Private Range: 172.16.0.0. ~ 172.31.255.255
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Class C Address Space
What is the IP range, subnet mask, and private IP range for Class C?
- Range: 192.0.0.0 ~ 223.255.255.255
- Subnet Mask: 255.255.255.0
- Private Range: 192.168.0.0 ~ 192.168.255.255
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/31
What is the dotted decimal notation equivalent for the /31 subnet? How many total addresses are available in this subnet? How many usable addresses?
- 255.255.255.254
- 2 host addresses (0 usable)
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/30
What is the dotted decimal notation equivalent for the /30 subnet? How many total addresses are available in this subnet? How many usable addresses?
- 255.255.255.252
- 4 host addresses (2 usable)
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/29
What is the dotted decimal notation equivalent for the /29 subnet? How many total addresses are available in this subnet? How many usable addresses?
- 255.255.255.248
- 8 host addresses (6 usable)
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/28
What is the dotted decimal notation equivalent for the /28 subnet? How many total addresses are available in this subnet? How many usable addresses?
- 255.255.255.240
- 16 host addresses (12 usable)
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/27
What is the dotted decimal notation equivalent for the /27 subnet? How many total addresses are available in this subnet? How many usable addresses?
- 255.255.255.224
- 32 host addresses (30 usable)
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/26
What is the dotted decimal notation equivalent for the /26 subnet? How many total addresses are available in this subnet? How many usable addresses?
- 255.255.255.192
- 64 host addresses (62 usable)
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/25
What is the dotted decimal notation equivalent for the /25 subnet? How many total addresses are available in this subnet? How many usable addresses?
- 255.255.255.128
- 128 host addresses (126 usable)
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/24
What is the dotted decimal notation equivalent for the /24 subnet? How many total addresses are available in this subnet? How many usable addresses?
- 255.255.255.0
- 256 host addresses (254 usable)
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Name the protocol and port for FTP.
TCP Port 21
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Name the protocol and port for SSH.
TCP Port 22
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Name the protocol and port for Telnet.
TCP Port 23
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Name the protocol and port for SMTP.
TCP Port 25
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Name the protocol and port for DNS.
TCP and UDP Port 53
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Name the protocol and port for HTTP.
TCP Port 80
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Name the protocol and port for POPv3.
TCP Port 110
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Name the protocol and port for HTTPS.
TCP Port 443
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Name the protocol and port for TFTP.
UDP Port 69
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What is the default boot register value?
0x2102
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What is the register value to boot flash and ignore NVRAM?
0x2142
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What is the register to boot PROM?
0x2102
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What is the registrer to boot PROM and ignore NVRAM?
0x2141
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What is the register to boot ROMMON?
0x2100
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What are the Standard ACL Numbers?
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What are the Extended ACL Numbers?
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What protocol does "C" represent in "show ip route"? What is its default administrative cost?
- connected
- administrative cost 0
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What protocol does "S" represent in "show ip route"? What is its default administrative cost?
- static route
- administrative cost 1
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What protocol does "B" represent in "show ip route"? What is its default administrative cost?
- eBGP
- administrative cost 20
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What protocol does "D" represent in "show ip route"? What is its default administrative cost?
- EIGRP
- administrative cost 90
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What protocol does "I" represent in "show ip route"? What is its default administrative cost?
- IGRP
- administrative cost 100
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What protocol does "O" represent in "show ip route"? What is its default administrative cost?
- OSPF
- administrative cost 110
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What protocol does "i" represent in "show ip route"? What is its default administrative cost?
- ISIS
- administrative cost 115
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What protocol does "R" represent in "show ip route"? What is its default administrative cost?
- RIP
- administrative cost 120
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