Chapter 8 - Supplement - Sheet1 (1)

Question 1

Length of a subnet mask, in bits

Answer 1

32 bits

Question 2

Default subnet mask for a Class A network

Answer 2

255.0.0.0

Question 3

Default subnet mask for a Class B network

Answer 3

255.255.0.0

Question 4

Default subnet mask for a Class C network

Answer 4

255.255.255.0

Question 5

CIDR

Answer 5

Classless inter-domain routing. The method that ISPs use to allocate a number of addresses to a company or home connection

Question 6

/25 How many subnets?

Answer 6

2

Question 7

/25 How many hosts per subnet?

Answer 7

126

Question 8

/25 What are teh valid subnets?

Answer 8

0, 128

Question 9

/25 What’s the broadcast address for each subnet?

Answer 9

127, 255

Question 10

/25 What are the valid hosts?

Answer 10

1-126 ; 129 - 254

Question 11

/26 How many subnets?

Answer 11

4

Question 12

/26 How many hosts per subnet?

Answer 12

62

Question 13

/26 What are teh valid subnets?

Answer 13

0, 64, 128, 192

Question 14

/26 What’s the broadcast address for each subnet?

Answer 14

63, 127, 191, 255

Question 15

What is the subnet, broadcast address, and valid host range for IP 192.168.10.33 with subnet mask 255.255.255.224?

Answer 15

Subnet = 192.168.10.32; Broadcast Address = 192.168.10.63; Host Range = 33-62?

Question 16

PING

Answer 16

Packet InterNet Groper - Uses Internet Control Message Protocol (ICMP) echo request and replies to test if a host IP stack is initialized and alive on the network.

Question 17

Traceroute

Answer 17

Displays a list of routers on a path to a network destination by using time to live (TTL) and ICMP error messages. Will work on a router, MAC, or linux. Not Windows

Question 18

Tracert

Answer 18

Some as traceroute, but for Windows

Question 19

arp -a

Answer 19

Displays IP-to-MAC-address mappings on a Windows PC

Question 20

ipconfig /all

Answer 20

Used only from DOS prompt. Shows the PC network config