Networking Chapter 11 - Study Guide

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What is the prefix length notation for the subnet mask 255.255.255.224?

/27

Which two situations are the result of excessive broadcast traffic?

1) Slow network operations 2) Slow device operations

Host-A has the IPv4 address and subnet mask 10.5.4.100 255.255.255.0. What is the network address of Host-A?

10.5.4.0

If a network device has a mask of /28, how many IP addresses are available for hosts on this network?

14

Host-A has the IPv4 address and subnet mask 172.16.4.100 255.255.0.0. What is the network address of Host-A?

172.16.0.0

What subnet mask is represented by the slash notation /20?

255.255.240.0

Which subnet mask would be used if 5 host bits are available?

255.255.255.224

Which subnet mask would be used if exactly 4 host bits are available?

255.255.255.240

A network administrator is variably subnetting a network. The smallest subnet has a mask of 255.255.255.224. How many usable host addresses will this subnet provide?​

30

How many usable IP addresses are available on the 192.168.1.0/27 network?

30

A network administrator subnets the 192.168.10.0/24 network into subnets with /26 masks. How many equal-sized subnets are created?

4

How many valid host addresses are available on an IPv4 subnet that is configured with a /26 mask?

62

If a network device has a mask of /26, how many IP addresses are available for hosts on this network?

62

What is the purpose of the subnet mask in conjunction with an IP address?

to determine the subnet to which the host belongs

Why does a Layer 3 device perform the ANDing process on a destination IP address and subnet mask?

to identify the network address of the destination network

True or False: Since Host-A has the IPv4 address and subnet mask 192.168.1.50 255.255.255.0, 192.168.1.1 and 192.168.2.100 would be on the same network as Host-A

False, 192.168.2.100 is not on the same network

True or False: Network Portion and Host Portion are NOT components of IPv4 addresses?

False, they are components of IPv4 addresses

What does the IP address 172.17.4.250 /24 represent?

Host Address

Which organization or group of organizations receives IP addresses from IANA and is responsible for allocating these addresses to ISPs and some organizations?

RIRs

Which devices will not forward an IPv4 broadcast packet by default?

Router

True or False: In variable-length subnet masking, The size of each subnet may be different, depending on requirements.

True

True or False: Since Host-A has the IPv4 address and subnet mask 10.5.4.100 255.255.255.0, 10.5.4.1 and 10.5.4.99 would be on the same network as Host-A

True

True or False: Since Host-A has the IPv4 address and subnet mask 172.16.4.100 255.255.0.0, 172.16.0.1 and 172.16.4.99 would be on the same network as Host-A

True

True or False: the following 2 statements are true about private IPv4 addresses 1) Private IPv4 addresses are assigned to devices within an organization's intranet (internal network) 2) Any organization (home, school, office, company) can use the 10.0.0.0/8 address.

True

True or False: the following 2 statements are true about public IPv4 addresses 1) To access a device over the internet, the destination IPv4 address must be a public address. 2) Public IPv4 address exhaustion is a reason why there are private IPv4 addresses and why organizations are transitioning to IPv6.

True


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