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Network Routing Flashcards

1
Q

What is network segmentation?

A

The practice of dividing a computer network into smaller, manageable parts.

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2
Q

True or False: Network segmentation can improve security by isolating sensitive data.

A

True

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3
Q

What is the purpose of a subnet mask?

A

To define the network and host portions of an IP address.

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4
Q

Fill in the blank: The default subnet mask for a Class C IP address is ______.

A

255.255.255.0

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5
Q

What does CIDR stand for?

A

Classless Inter-Domain Routing

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6
Q

Which of the following is an example of a private IP address? A) 192.168.1.1 B) 8.8.8.8

A

A) 192.168.1.1

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7
Q

What is an IP address?

A

A unique identifier for a device on a network.

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8
Q

True or False: IP addresses can be static or dynamic.

A

True

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9
Q

What is the range of valid Class A IP addresses?

A

1.0.0.0 to 126.255.255.255

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10
Q

Fill in the blank: The loopback IP address is ______.

A

127.0.0.1

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11
Q

What is the primary benefit of using network masks?

A

To efficiently allocate IP addresses within a network.

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12
Q

What does the notation /24 represent in CIDR?

A

A subnet mask of 255.255.255.0

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13
Q

Which layer of the OSI model does IP addressing operate at?

A

Network layer

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14
Q

True or False: Subnetting can help reduce network congestion.

A

True

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15
Q

What is the maximum number of hosts that a /30 subnet can support?

A

2 hosts

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16
Q

What is NAT?

A

Network Address Translation

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17
Q

Fill in the blank: The private IP address range for Class B is ______.

A

172.16.0.0 to 172.31.255.255

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18
Q

What is the function of a default gateway?

A

To route traffic from a local network to external networks.

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19
Q

True or False: All devices on the same subnet can communicate directly with each other.

A

True

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20
Q

Which protocol is used to automatically assign IP addresses to devices on a network?

A

DHCP (Dynamic Host Configuration Protocol)

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21
Q

What does the term ‘broadcast address’ refer to?

A

An address used to send data to all devices on a subnet.

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22
Q

Fill in the blank: The subnet mask for a /16 network is ______.

A

255.255.0.0

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23
Q

What is the purpose of VLSM?

A

Variable Length Subnet Masking allows for more efficient use of IP addresses.

24
Q

True or False: The IP address 0.0.0.0 is a valid host address.

25
What is the first address in a subnet used for?
The network address.
26
What is the last address in a subnet used for?
The broadcast address.
27
28
What is a subnet?
A subnet is a segmented piece of a larger network that allows for better management and organization of IP addresses.
29
True or False: Subnets can help reduce network congestion.
True
30
Fill in the blank: A subnet mask is used to define the _____ of a subnet.
size
31
What does CIDR stand for?
Classless Inter-Domain Routing
32
Which of the following is a valid subnet mask: 255.255.255.0, 255.255.0.256, 192.168.1.1?
255.255.255.0
33
What is dynamic segmentation?
Dynamic segmentation is a method of dividing a network into segments based on criteria such as user roles or device types.
34
True or False: Hosts are devices connected to a network that can communicate with each other.
True
35
How many hosts can a /24 subnet support?
256 hosts
36
What is the purpose of a default gateway in a subnet?
To allow devices in the subnet to communicate with devices outside of their local network.
37
Fill in the blank: The first and last IP addresses in a subnet are _____ and _____ respectively.
network address, broadcast address
38
What is the primary benefit of subnetting?
Improved network performance and security.
39
True or False: Subnets can only be created on IPv4 networks.
False
40
What is a broadcast address?
An address used to send data to all possible destinations in a subnet.
41
Which layer of the OSI model does subnetting primarily operate on?
Layer 3 (Network Layer)
42
What does the term 'host' refer to in networking?
Any device that connects to a network and can send or receive data.
43
What is the maximum number of subnets possible with a /20 subnet mask?
16 subnets
44
Fill in the blank: Dynamic segmentation can automatically adjust based on _____ changes.
network
45
What is the significance of the subnet ID?
It uniquely identifies a subnet within a larger network.
46
True or False: All devices in the same subnet can communicate with each other directly.
True
47
What command is commonly used to view the IP configuration of a device?
ipconfig (for Windows) or ifconfig (for Linux)
48
What is the range of valid IP addresses in a /29 subnet?
8 addresses (6 usable for hosts)
49
Fill in the blank: The process of dividing a network into smaller subnets is called _____ .
subnetting
50
What is the role of a DHCP server in a subnet?
To assign IP addresses dynamically to hosts within the subnet.
51
Which of the following is NOT a valid subnet mask: 255.255.255.128, 255.255.255.255, 255.255.255.192?
255.255.255.255
52
What does the term 'host address' refer to?
An IP address assigned to a specific device within a subnet.
53
True or False: Subnetting can enhance security by isolating different segments of a network.
True
54
What is the formula to calculate the number of usable hosts in a subnet?
2^(32 - subnet bits) - 2
55
Fill in the blank: A subnet allows for _____ of the network to be more efficient.
routing
56
What is the difference between static and dynamic IP addressing?
Static IP addressing assigns a fixed IP address, while dynamic IP addressing assigns an IP address temporarily from a pool.

Networks Management (3 decks)

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